CN109943599A - A kind of method of fermenting and producing long-chain biatomic acid - Google Patents

A kind of method of fermenting and producing long-chain biatomic acid Download PDF

Info

Publication number
CN109943599A
CN109943599A CN201711379782.4A CN201711379782A CN109943599A CN 109943599 A CN109943599 A CN 109943599A CN 201711379782 A CN201711379782 A CN 201711379782A CN 109943599 A CN109943599 A CN 109943599A
Authority
CN
China
Prior art keywords
fermentation
acid
fatty acids
saturated fatty
cctcc
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201711379782.4A
Other languages
Chinese (zh)
Other versions
CN109943599B (en
Inventor
徐敏
李乃强
刘修才
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kasai Shanghai Biotechnology Co ltd
Cathay R&D Center Co Ltd
CIBT America Inc
Original Assignee
Shanghai Cathay Biotechnology Research and Development Center Co Ltd
Cathay Industrial Biotech Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Cathay Biotechnology Research and Development Center Co Ltd, Cathay Industrial Biotech Ltd filed Critical Shanghai Cathay Biotechnology Research and Development Center Co Ltd
Priority to CN201711379782.4A priority Critical patent/CN109943599B/en
Publication of CN109943599A publication Critical patent/CN109943599A/en
Application granted granted Critical
Publication of CN109943599B publication Critical patent/CN109943599B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)

Abstract

The invention discloses a kind of method of fermenting and producing long-chain biatomic acid, this method are as follows: during the fermentation, control rate of producing acid is 1.0~2.0g/L/h.Method of the invention can significantly improve the fermentation conversion rate of long-chain biatomic acid, and low in cost, easy to operate, be suitble to large-scale industrial production.

Description

A kind of method of fermenting and producing long-chain biatomic acid
Technical field
The present invention relates to fermentation arts, and in particular to a kind of method of fermenting and producing long-chain biatomic acid.
Background technique
Long-chain biatomic acid has very extensive purposes, can synthesize extraordinary polyamide, height by raw material of long-chain biatomic acid Grade fragrance, high-grade hot melt adhesive, cold resistant plasticizer, senior lubricant, advanced antirust agent, advanced paint and coating etc..Long-chain binary Acid can usually be synthesized with chemical method or bioanalysis.Chemical method synthetic route is long, and reaction needs high temperature and pressure, wants to catalyst Ask comparison harsh, therefore long-chain biatomic acid at industrial scale is of less types, only a small number of product such as 12 carbon long-chain biatomic acids Kind.And bioanalysis is to be obtained using long chain alkane as substrate by microorganism conversion, utilizes the special function of microorganism diterminal oxidation Long-chain biatomic acid can be prepared by fermenting substrate of n-alkane.The mechanism study of long-chain biatomic acid is generated by microbiological oxidation alkane Known to: its main reaction is α, and omega oxidation, side reaction is alpha-oxidation decarboxylation and beta oxidation, makes the product long-chain biatomic acid quilt generated Further oxidative degradation.Beta oxidation, which is mainly grown to microorganism, provides energy, maintains the conversion activity of microbial cell, this just leads Cause substrate alkane that cannot be completely converted into product binary acid, and the conversion ratio of alkane is to Guan Chong for the production cost of binary acid It wants.
Chinese patent CN102808004A and CN1259424C disclose a kind of side for improving fermentation yield of long-chain dicarboxylic acid Method.This method improves fermentation conversion rate by adding alpha-oxidation decarboxylation or beta oxidation inhibitor during the fermentation, uses Inhibitor is the reagents such as chlorpromazine hydrochloride, halogenated aliphatic acid, and such reagent price is expensive, increases the extraction and purification process of binary acid And cost, and conversion ratio highest is only increased to 89% (w/w).Chinese patent CN105755062A discloses a kind of utilize and aoxidizes also The method that former current potential regulates and controls fermentation process production long-chain biatomic acid.This method combines oxygen by adjusting ventilatory capacity, speed of agitator Agent and reducing agent realize that two stages ORP of long-chain biatomic acid control fermentation, but do not refer to binary acid yield.Chinese patent CN103074325A discloses a kind of method of mutagenesis of the Candida tropicalis of long-chain biatomic acid, and this method utilizes induction mutation of bacterium Superior strain is screened, but does not refer to binary acid conversion ratio.The document of foreign study long-chain biatomic acid is to carry out base to bacterial strain mostly Because of transformation, by blocking or weakening the related enzyme systems of fatty acid beta oxidation, the enzyme system for strengthening fatty acid α-ω oxidation produces to improve The yield of product.
In conclusion the technique of Production of Long-chain Dicarboxylic Acids by Fermentation Methods in the prior art, fermentation conversion rate is not generally high, and each Kind improves the method higher cost of long-chain biatomic acid fermentation conversion rate, and effect is not very significant, does not have still in the prior art One kind can efficiently improve long-chain biatomic acid fermentation conversion rate, and method easy to operate, at low cost.
Summary of the invention
It is not high in order to solve long-chain biatomic acid fermentation conversion rate existing in the prior art, in order to improve fermentation conversion rate, It needs to increase great amount of cost and effect and inapparent defect, a kind of method of fermenting and producing long-chain biatomic acid is provided, the present invention Method can significantly improve the fermentation conversion rate of long-chain biatomic acid, and it is low in cost, it is easy to operate, be suitble to heavy industrialization Production.
The purpose of the present invention is to provide a kind of method of fermenting and producing long-chain biatomic acid, in the fermentation process, acid is produced Rate is 1.0~2.0g/L/h, preferably 1.1~1.7g/L/h, more preferable 1.2~1.5g/L/h.
Those skilled in the art understand, and the rate of producing acid refers to the throughput rate of long-chain biatomic acid in fermentation process, The fermentation and acid speed is characterized with long-chain biatomic acid quality that unit time unit volume fermented feed liquid generates.
In the prior art, there are many researchs to the method for improving long-chain biatomic acid fermentation conversion rate, but there has been no pass through control Fermentation process acid production speed processed just improves the report of fermentation conversion rate.Inventor passes through to all of long-chain biatomic acid zymotechnique More researchs, discovery: acid production speed has a great impact to the fermentation conversion rate of long-chain biatomic acid.By the way that acid production speed is controlled In a specific range, it can effectively improve the fermentation conversion rate of long-chain biatomic acid;On this basis, inventor is in terms of mechanism The deep structure research phenomenon, discovery: why acid production speed have a significant impact fermentation conversion rate, is because of cell density pair Conversion, intermediate product, generation of by-product of substrate etc. have an impact, and only under certain equilibrium condition, are just able to achieve high The fermentation conversion rate of long-chain biatomic acid;One side acid production speed is too fast, and substrate conversion rate is too fast, and coenzyme NADP 11 is insufficient, Beta-oxidation enhancing, causes the substrate transformation rate low, and the accumulation of intermediate product hydroxycarboxylic acid excessively causes product quality to decline;Another party Face acid production speed is excessively slow, and fermentation period extension causes to produce strength reduction, increases production cost.Therefore the reasonable acid production speed of control The fermentation conversion rate of long-chain biatomic acid can be effectively improved.
More than, the preferred technical solution of scheme, is described further in view of the above technology.
The present invention to the control method of acid production speed without limitation, it is only necessary to control acid production speed in particular range i.e. It can;In general, the method for conventional control acid production speed, such as: control stirring operation, control fermentation temperature or control are logical Air quantity or the combination of several control means etc. are suitable for the present invention, cooperate other technological operations, common to coordinate, Neng Goushi Existing technical effect of the invention.
A preferred technical solution of the invention can cooperate other process conditions, by controlling mixing speed to control Acid production speed processed.Those skilled in the art understand, the determination of mixing speed dependent on fermentor pot, the shape of agitating paddle, The factors such as quantity.
A preferred technical solution of the invention, the speed of agitator when fermentation are 500~1000rpm.It is described to stir It mixes speed to characterize with the speed of agitator of two layers of turbine disc blade stirring paddle, more specifically, the mixing speed is stainless with 10L It is characterized on steel fermentor using the speed of agitator of two layers of turbine disc blade stirring paddle.
Herein it should be noted that the present invention is not limited to use above-mentioned agitating paddle, it is also not necessarily limited to above-mentioned mixing speed, as long as The agitating paddle of this field routine cooperates specific speed, can be realized specific acid production speed, in protection scope of the present invention It is interior.
The preferred another technical solution of of the invention one can also cooperate other process conditions, come by controlling ventilation quantity Control acid production speed.
A preferred technical solution of the invention, the ventilation quantity in the fermentation process are 0.1~1vvm, preferably 0.2 ~0.6vvm;The ventilation quantity is characterized with the volume of air (L) that is passed through in unit time (min) unit volume (L) fermentation liquid.
The present invention not only can control acid production speed through the above way, can also be come by the combination of several ways Control acid production speed.
A preferred technical solution of the invention is matched by controlling the common adjusting of the mixing speed and ventilation quantity Other fermentation parameters are closed, can be realized the effect for preferably improving fermentation conversion rate.The mixing speed and ventilation quantity are full Sufficient the following conditions:
0.6-0.00042A≤F≤0.8-0.00038A;
Wherein: A indicates that the numerical value of mixing speed, the numerical value are the numerical value as unit of rpm;The mixing speed is with two layers The speed of agitator of turbine disc blade stirring paddle characterizes;
F indicates that the numerical value of ventilation quantity, the numerical value are the numerical value as unit of vvm.
A preferred technical solution of the invention, the strain of the fermentation include candida tropicalis (Candida ) or candida sake (Candidasake) Tropicalis.Such as: it can be candida tropicalis (Candida Tropicalis) (deposit number is CCTCC M203052) or candida tropicalis (Candida Tropicalis) CATN145 (deposit number is CCTCC M 2011192) or candida sake (Candidasake) CATH4013 (deposit number For CCTCC M2011486) or candida sake (Candidasake) CATH4014 (deposit number CCTCC M2011487) perhaps candida sake (Candidasake) CATH4012 (deposit number be CCTCC M2011485) or Candida sake (Candidasake) CATH4016 (deposit number is CCTCC M2011488) or candida sake (Candidasake) CATH430 (deposit number is CCTCC M2011489).
A preferred technical solution of the invention, the substrate of the fermentation include the normal alkane of C9~C18, linear saturation One of fatty acid, linear saturated fatty acids ester and salts of straight-chain saturated fatty acids are a variety of;Preferably include C11~C16 just One of alkane, linear saturated fatty acids, linear saturated fatty acids ester and salts of straight-chain saturated fatty acids are a variety of;More preferably Normal alkane, linear saturated fatty acids, linear saturated fatty acids ester and the linear saturation rouge of C11, C12, C13, C15, C14 or C16 One of fat hydrochlorate.
A preferred technical solution of the invention, the culture medium of the fermentation include: carbon source, nitrogen source, phosphorus source, micro gold Belong to element source and growth factor.
Wherein, the carbon source includes either one of glucose, sucrose, maltose, molasses, methanol, ethyl alcohol or more Kind;It is highly preferred that the carbon source include either glucose, sucrose it is one or more.The carbon source concentration preferably 20~ 60g/L。
Wherein, the nitrogen source includes either organic nitrogen and/or inorganic nitrogen, and organic nitrogen includes but is not limited to yeast extract, egg One of white peptone, corn pulp are a variety of, and inorganic nitrogen includes but is not limited to one of urea, ammonium sulfate, potassium nitrate or a variety of; Preferably, the nitrogen source includes either ammonium sulfate and/or potassium nitrate.The concentration of the nitrogen source preferably 0.5~10g/L.It is preferred that Ground, the concentration of the ammonium sulfate preferably 0.5~5g/L.Preferably, the concentration of the potassium nitrate preferably 0.5~5g/L.
Wherein, phosphorus source includes either one of phosphate, dibasic alkaliine and dihydric phosphate or a variety of;It is excellent Selection of land, the phosphate include either one of potassium phosphate, sodium ascorbyl phosphate, ammonium phosphate salt or a variety of;It is highly preferred that institute It states phosphate and includes either potassium dihydrogen phosphate.The concentration of phosphorus source preferably 1~5g/L.
Wherein, the minor metallic element source includes potassium, calcium, magnesium, iron, copper, zinc, the sulfate of manganese, hydrochloride and nitric acid One of salt is a variety of.The concentration preferably 0.1~50ppm in the minor metallic element source.
Wherein, the growth factor includes one of amino acid, citric acid and vitamin or a variety of;It is highly preferred that institute State the mixing that growth factor includes either one or both of citric acid, biotin.The growth factor concentration is preferred 0.01~1ppm.
A preferred technical solution of the invention, the tank temperature when fermentation are 28~32 DEG C.
A preferred technical solution of the invention, the tank pressure when fermentation is 0.05~0.14Mpa, and the pressure is Gauge pressure.
A preferred technical solution of the invention, the ferment control pH are 5.0~8.5.
Those skilled in the art are according to common sense in the field, it can be determined that the stage of fermentation.In general, before the fermentation Phase is that fermentation starts to 30~60h of fermentation.The fermentation later period is that fermentation starts 30~60h to fermentation ends.
A preferred technical solution of the invention, the fermentation period are 100~180h.
Specific embodiment
The present invention provides a kind of side that long-chain biatomic acid fermentation conversion rate is improved by control fermentation process rate of producing acid Method.Wherein, the rate of producing acid refers to the throughput rate of long-chain biatomic acid in fermentation process, and the fermentation and acid speed is with list The long-chain biatomic acid quality that position chronomere volume fermented feed liquid generates characterizes.
.The present invention by control fermentation process ventilation quantity and/or fermentation process mixing speed, cooperate other technological parameters and Condition, to control fermentation process rate of producing acid in a suitable range, to improve fermentation conversion rate.
The method of fermenting and producing long-chain biatomic acid, comprising the following steps:
A) actication of culture;
B seed liquor) is prepared in seeding tank using seed culture medium;
C) seed liquor is inoculated into the fermentor containing fermentation medium, in fermentation process, rate of producing acid be 1.0~ 2.0g/L/h, preferably 1.1~1.7g/L/h, more preferable 1.2~1.5g/L/h;Rate of producing acid refers to long-chain biatomic acid in fermentation process Throughput rate, by unit time unit volume fermented feed liquid generate long-chain biatomic acid quality in terms of.
In one embodiment of the present of invention, A) actication of culture is the following steps are included: take candida tropicalis (Candida Tropicalis) or the glycerol stock of candida sake (Candidasake) is in the shaking flask of YPD culture medium, shaking table culture, turns 200~250rpm of speed, cultivates 24~48h by 28~30 DEG C of cultivation temperature.
Step A) in, YPD culture medium includes: peptone 10g/kg, yeast extract 5g/kg, and glucose 10g/kg, pH are natural.
In one embodiment of the present of invention, step B) in the parameter of seeding tank be: 28~30 DEG C of cultivation temperature, ventilation quantity 0.1~1vvm, preferably 0.2~0.6vvm;Tank pressure is 0.08~0.1MPa (gauge pressure), and 12~36h of incubation time, seed maturation refers to It is designated as OD620It is 15~30.
Step B) in seed culture medium be water-soluble liquid culture medium, preferably include following component: 10~30g/L of sucrose, corn Starch 1.5~10g/L, 1~10g/L of yeast extract, 4~12g/L of potassium dihydrogen phosphate, 0.5~5g/L of urea, 0~30ml/ of alkane L, water-soluble liquid culture medium is prepared with water, and is sterilized.
In one embodiment of the present of invention, step C) in, 28~32 DEG C of fermentation processes temperature, ventilation quantity 0.1~ 1vvm, preferably 0.2~0.6vvm (volume of air that unit time unit volume fermentation liquid is passed through), tank pressure for 0.05~ 0.14MPa (gauge pressure), with two layers of turbine disc blade stirring paddle stirring, 500~1000rpm of mixing speed;Add 10%~ The pH value 5.0~8.5 of the NaOH solution control fermentation liquid of 40% (w/v);Start to add in batches when fermentation period is 10~20h Enter substrate, total fermentation period is 100~180h;
In one embodiment of the present of invention, step C) in, substrate include the normal alkane of C9~C18, linear saturated fatty acids, One of linear saturated fatty acids ester and salts of straight-chain saturated fatty acids are a variety of;Preferably include the normal alkane, straight of C11~C16 One of chain saturated fatty acid, linear saturated fatty acids ester and salts of straight-chain saturated fatty acids are a variety of;More preferably C11, Normal alkane, linear saturated fatty acids, linear saturated fatty acids ester and the linear saturated fatty acids of C12, C13, C15, C14 or C16 One of salt;
In one embodiment of the present of invention, step C) in fermentation medium, comprising: carbon source, nitrogen source, phosphorus source, trace meter Element source, growth factor;
Carbon source includes either one of glucose, sucrose, maltose, molasses, methanol, ethyl alcohol or a variety of;More preferably Ground, carbon source include one or two kinds of mixing of either glucose, sucrose;Carbon source concentration is 20~60g/L.
Nitrogen source can be organic nitrogen and/or inorganic nitrogen, and organic nitrogen includes but is not limited to yeast extract, peptone, in corn pulp It is one or more, inorganic nitrogen includes but is not limited to one of urea, ammonium sulfate, potassium nitrate or a variety of;Preferably, nitrogen source packet Include one or two kinds of mixing of either ammonium sulfate, potassium nitrate;The concentration of nitrogen source is 0.5~5g/L.
Phosphorus source includes either one of phosphoric acid normal salt, dibasic alkaliine and dihydric phosphate or a variety of, preferably phosphorus Hydrochlorate includes either one of potassium phosphate, sodium ascorbyl phosphate, ammonium phosphate salt or a variety of;It is highly preferred that phosphate include or Person is potassium dihydrogen phosphate.Phosphorus source concentration is 1~5g/L.
Minor metallic element source includes one of potassium, calcium, magnesium, iron, copper, zinc, the sulfate of manganese, hydrochloride and nitrate Or it is a variety of.The concentration in microelement source is 0.1~50ppm.
Growth factor includes one of amino acid, citric acid and vitamin or a variety of;Preferably include either citric acid, The mixing of one or both of biotin.Growth factor concentration is 0.01~1ppm.
Below by embodiment, the present invention is described in detail, so that the features and advantages of the present invention become apparent from.But it answers This points out that for embodiment for understanding design of the invention, the scope of the present invention is not limited only to reality listed herein Apply example.
It is such as not particularly illustrated, concentration of the present invention is mass percent concentration.
In the present invention, the binary acid concentration in culture solution is measured, technology well known to those skilled in the art, example can be used The measuring method as disclosed in Chinese patent ZL 95117436.3.Specifically, the pH to 3.0 of fermentation liquid is adjusted with hydrochloric acid solution, Then plus 100mL ether is for the binary acid in extractive fermentation liquid, then uses evaporation to remove ether, obtains binary acid powder; In ethanol by the dissolution of obtained binary acid powder, and with the NaOH solution of 0.1mol/L it titrates, finally obtains in fermentation liquid Binary acid titer.
In the present invention, unless otherwise indicated, " about " Lai Xiuzheng is used in the parameters such as component, reaction condition, concentration Numerical value.Therefore numerical parameter in the specification and in the claims is an approximation, depends on the desired property of the present invention Energy.At least, it is not considered as the limitation of doctrine of equivalents application protected to the claims in the present invention.At least, the number of each parameter With rounding up, the digit of effective digital historically determines value.Although numerical value in a particular embodiment is as far as possible It is accurate to accomplish, but since the systematic error of experimental test procedures necessarily causes any data that can all have certain error.
Embodiment 1
(1) actication of culture:
The glycerol tube strain of candida tropicalis is taken to be inoculated in the shaking flask equipped with 30ml seed culture medium, pH is naturally, 29 At DEG C, 220rpm shaking table culture is for 24 hours;YPD culture medium includes: peptone 10g/kg, yeast extract 5g/kg, glucose 10g/kg;
(2) seed liquor is prepared:
Take shake-flask seed access equipped in the seeding tank of seed culture medium, the initial ph value of system is 6.0,29 DEG C after inoculation Under, ventilation quantity 0.5vvm, tank presses 0.1MPa, cultivates 18h, and pH drops to 3, OD naturally in incubation620It grows to 15;
(3) it ferments:
Seed is inoculated into containing 6L fermentation medium (glucose 50g/L, potassium nitrate 3g/L, potassium dihydrogen phosphate 4g/L, sulphur Sour ammonium 0.3g/L, magnesium sulfate 50ppm, citric acid 1ppm) fermentor in, 30 DEG C of fermentation processes temperature, ventilation quantity 0.5vvm, tank pressure is about 0.1MPa (gauge pressure), with two layers of turbine disc blade stirring paddle stirring, speed of agitator 1000rpm;Fermentation Process adds the pH value of the liquid alkaline control fermentation liquid of 30% (w/v);When fermentation period is 10~20h start that substrate is added portionwise N-dodecane hydrocarbon, control fermentation liquid in Determination of Alkane Content 10% (v/v) below;Ferment control pH 5.0-8.5, total fermentation period are 130 hours, whens fermentation ends, residual hydrocarbon content was essentially 0;
The production concentration 130mg/g of LCDA, acid production speed 1.9g/L/h, alkane mass transitions rate 85%.
Embodiment 2
(1) actication of culture:
The glycerol tube strain of candida tropicalis is taken to be inoculated in the shaking flask equipped with 30ml seed culture medium, pH is naturally, 29 At DEG C, 220rpm shaking table culture is for 24 hours;YPD culture medium includes: peptone 10g/kg, yeast extract 5g/kg, glucose 10g/kg;
(2) seed liquor is prepared:
Take shake-flask seed access equipped in the seeding tank of seed culture medium, the initial ph value of system is 6.0,29 DEG C after inoculation Under, ventilation quantity 0.5vvm, tank presses 0.1MPa, cultivates 18h, and pH drops to 3, OD naturally in incubation620It grows to 15;
(3) it ferments:
Seed is inoculated into containing fermentation medium (glucose 20g/L, potassium nitrate 2g/L, potassium dihydrogen phosphate 3g/L, sulfuric acid Ammonium 2g/L, magnesium sulfate 50ppm, citric acid 1ppm) fermentor in, 30 DEG C of fermentation processes temperature, ventilation quantity 1.0vvm, tank Pressure is about 0.12MPa (gauge pressure), and with two layers of turbine disc blade stirring paddle stirring, speed of agitator 600rpm, fermentation process is added The pH value 5.0-8.5 of the liquid alkaline control fermentation liquid of 30% (w/v);Start point 6 batches of addition substrates when fermentation period is 10~20h N-dodecane hydrocarbon, control fermentation liquid in Determination of Alkane Content 10% (v/v) below;Total fermentation period is 140 hours, and whens fermentation ends is residual Hydrocarbon content is essentially 0;
The production acid concentration 132mg/g of LCDA, acid production speed 1.8g/L/h, alkane mass transitions rate 88%.
Embodiment 3
(1) actication of culture:
The glycerol tube strain of candida tropicalis is taken to be inoculated in the shaking flask equipped with 30ml seed culture medium, pH is naturally, 29 At DEG C, 220rpm shaking table culture is for 24 hours;YPD culture medium includes: peptone 10g/kg, yeast extract 5g/kg, glucose 10g/kg;
(2) seed liquor is prepared:
Take shake-flask seed access equipped in the seeding tank of seed culture medium, the initial ph value of system is 6.0,29 DEG C after inoculation Under, ventilation quantity 0.5vvm, tank presses 0.1MPa, cultivates 18h, and pH drops to 3, OD naturally in incubation620It grows to 15;
(3) it ferments:
Seed is inoculated into containing fermentation medium (glucose 30g/L, potassium nitrate 2g/L, potassium dihydrogen phosphate 3g/L, sulfuric acid Ammonium 2g/L, magnesium sulfate 50ppm, citric acid 1ppm) fermentor in, 30 DEG C of fermentation processes temperature, ventilation quantity 0.2vvm, tank Pressure is about 0.12MPa (gauge pressure), with two layers of turbine disc blade stirring paddle stirring, speed of agitator 1000rpm;Fermentation process is added The pH value 5.0-8.5 of the liquid alkaline control fermentation liquid of 30% (w/v);When fermentation period is 10~20h start that substrate is added portionwise N-dodecane hydrocarbon, control fermentation liquid in Determination of Alkane Content 10% (v/v) below;Total fermentation period is 145 hours, and whens fermentation ends is residual Hydrocarbon content is essentially 0;
The production acid concentration 150mg/g of LCDA, acid production speed 1.45g/L/h, alkane mass transitions rate 92%.
Embodiment 4
(1) actication of culture:
The glycerol tube strain of candida tropicalis is taken to be inoculated in the shaking flask equipped with 30ml seed culture medium, pH is naturally, 29 At DEG C, 220rpm shaking table culture is for 24 hours;YPD culture medium includes: peptone 10g/kg, yeast extract 5g/kg, glucose 10g/kg;
(2) seed liquor is prepared:
Take shake-flask seed access equipped in the seeding tank of seed culture medium, the initial ph value of system is 6.0,29 DEG C after inoculation Under, ventilation quantity 0.5vvm, tank presses 0.1MPa, cultivates 18h, and pH drops to 3, OD naturally in incubation620It grows to 15;
(3) it ferments:
Seed is inoculated into containing fermentation medium (glucose 30g/L, potassium nitrate 2g/L, potassium dihydrogen phosphate 2.5g/L, sulphur Sour ammonium 1.5g/L, magnesium sulfate 50ppm, citric acid 1ppm) fermentor in, 30 DEG C of fermentation processes temperature, ventilation quantity 0.4vvm, tank pressure is about 0.12MPa (gauge pressure), with two layers of turbine disc blade stirring paddle stirring, speed of agitator 600rpm;Fermentation Process adds the pH value 5.0-8.5 of the liquid alkaline control fermentation liquid of 30% (w/v), starts in batches when fermentation period is 10~20h Be added substrate n-dodecane hydrocarbon, control fermentation liquid in Determination of Alkane Content 10% (v/v) below;Total fermentation period is 160 hours, fermentation At the end of residual hydrocarbon content be essentially 0;
Production the acid concentration 160mg/g, acid production speed 1.3g/L/h of LCDA.Alkane mass transitions rate 94%.
Embodiment 5
(1) actication of culture:
The glycerol tube strain of candida tropicalis is taken to be inoculated in the shaking flask equipped with 30ml seed culture medium, pH is naturally, 29 At DEG C, 220rpm shaking table culture is for 24 hours;YPD culture medium includes: peptone 10g/kg, yeast extract 5g/kg, glucose 10g/kg;
(2) seed liquor is prepared:
Take shake-flask seed access equipped in the seeding tank of seed culture medium, the initial ph value of system is 6.0,29 DEG C after inoculation Under, ventilation quantity 0.5vvm, tank presses 0.1MPa, cultivates 18h, and pH drops to 3, OD naturally in incubation620It grows to 15;
(3) it ferments:
Seed is inoculated into containing fermentation medium (glucose 20g/L, potassium nitrate 2g/L, potassium dihydrogen phosphate 2.5g/L, sulphur Sour ammonium 1.5g/L, magnesium sulfate 50ppm, citric acid 1ppm) fermentor in, 30 DEG C of fermentation processes temperature, ventilation quantity 0.3vvm, tank pressure is about 0.12MPa (gauge pressure), with two layers of turbine disc blade stirring paddle stirring, speed of agitator 900rpm;Fermentation Process adds the pH value 5.0-8.5 of the liquid alkaline control fermentation liquid of 30% (w/v), starts points 7 batches when fermentation period is 10~20h Be added substrate n-dodecane hydrocarbon, control fermentation liquid in Determination of Alkane Content 10% (v/v) below;Total fermentation period is 160 hours, fermentation At the end of residual hydrocarbon content be essentially 0;
The production acid concentration 160mg/g of LCDA, acid production speed 1.4g/L/h, alkane mass transitions rate 95%.
Embodiment 6
(1) actication of culture:
The glycerol tube strain of candida tropicalis is taken to be inoculated in the shaking flask equipped with 30ml seed culture medium, pH is naturally, 29 At DEG C, 220rpm shaking table culture is for 24 hours;YPD culture medium includes: peptone 10g/kg, yeast extract 5g/kg, glucose 10g/kg;
(2) seed liquor is prepared:
Take shake-flask seed access equipped in the seeding tank of seed culture medium, the initial ph value of system is 6.0,29 DEG C after inoculation Under, ventilation quantity 0.5vvm, tank presses 0.1MPa, cultivates 18h, and pH drops to 3, OD naturally in incubation620It grows to 15;
(3) it ferments:
Seed is inoculated into containing fermentation medium (glucose 20g/L, potassium nitrate 2g/L, potassium dihydrogen phosphate 2.5g/L, sulphur Sour ammonium 1.5g/L, magnesium sulfate 50ppm, citric acid 1ppm) fermentor in, be added 10% (v/v) alkane, fermentation processes 30 DEG C of temperature, ventilation quantity 0.3vvm, tank pressure is about 0.12MPa (gauge pressure), with two layers of turbine disc blade stirring paddle stirring, stirring Revolving speed 800rpm;Fermentation process adds the pH value 5.0-8.5 of the liquid alkaline control fermentation liquid of 30% (w/v), is 10 in fermentation period Start that substrate n-tridecane hydrocarbon is added portionwise when~20h, controls Determination of Alkane Content in fermentation liquid and be no more than 10% (v/v) below;Always Fermentation period is 160 hours, and whens fermentation ends, residual hydrocarbon content was essentially 0;
Production the acid concentration 150mg/g, acid production speed 1.25g/L/h of LCDA;Alkane mass transitions rate 93%.
Embodiment 7
(1) actication of culture:
The glycerol tube strain of candida tropicalis is taken to be inoculated in the shaking flask equipped with 30ml seed culture medium, pH is naturally, 29 At DEG C, 220rpm shaking table culture is for 24 hours;YPD culture medium includes: peptone 10g/kg, yeast extract 5g/kg, glucose 10g/kg;
(2) seed liquor is prepared:
Take shake-flask seed access equipped in the seeding tank of seed culture medium, the initial ph value of system is 6.0,29 DEG C after inoculation Under, ventilation quantity 0.5vvm, tank presses 0.1MPa, cultivates 18h, and pH drops to 3, OD naturally in incubation620It grows to 15;
(3) it ferments:
Seed is inoculated into containing fermentation medium (glucose 20g/L, potassium nitrate 2g/L, potassium dihydrogen phosphate 2.5g/L, sulphur Sour ammonium 1.5g/L, magnesium sulfate 50ppm, citric acid 1ppm) fermentor in, be added 10% (v/v) alkane, fermentation processes 30 DEG C of temperature, ventilation quantity 0.3vvm, tank pressure is about 0.12MPa (gauge pressure), with two layers of turbine disc blade stirring paddle stirring, stirring Revolving speed 800rpm;Fermentation process adds the pH value 5.0-8.5 of the liquid alkaline control fermentation liquid of 30% (w/v), is 10 in fermentation period Start that substrate hexadecane hydrocarbon is added portionwise when~20h, controls Determination of Alkane Content in fermentation liquid and be no more than 10% (v/v) below;Always Fermentation period is 160 hours, and whens fermentation ends, residual hydrocarbon content was essentially 0;
Production the acid concentration 120mg/g, acid production speed 1.25g/L/h of LCDA;Alkane mass transitions rate 80%.

Claims (10)

1. a kind of method of fermenting and producing long-chain biatomic acid, it is characterised in that: in the fermentation process, rate of producing acid be 1.0~ 2.0g/L/h, preferably 1.1~1.7g/L/h, more preferable 1.2~1.5g/L/h.
2. the method as described in claim 1, it is characterised in that: the ventilation quantity in the fermentation process is 0.1~1vvm, preferably 0.2~0.6vvm.
3. method according to claim 1 or 2, it is characterised in that: the strain of the fermentation includes candida tropicalis (Candida Tropicalis) or candida sake (Candidasake), preferably candida tropicalis (Candida Tropicalis) (deposit number is CCTCC M203052) or candida tropicalis (Candida Tropicalis) CATN145 (deposit number is CCTCC M 2011192) or candida sake (Candidasake) CATH4013 (deposit number For CCTCC M2011486) or candida sake (Candidasake) CATH4014 (deposit number CCTCC M2011487) perhaps candida sake (Candidasake) CATH4012 (deposit number be CCTCC M2011485) or Candida sake (Candidasake) CATH4016 (deposit number is CCTCC M2011488) or candida sake (Candidasake) CATH430 (deposit number is CCTCC M2011489).
4. the method according to claim 1, it is characterised in that: the substrate of the fermentation include C9~C18 just One of alkane, linear saturated fatty acids, linear saturated fatty acids ester and salts of straight-chain saturated fatty acids are a variety of;It preferably includes One of normal alkane, linear saturated fatty acids, linear saturated fatty acids ester and salts of straight-chain saturated fatty acids of C11~C16 or It is a variety of;The more preferably normal alkane of C11, C12, C13, C15, C14 or C16, linear saturated fatty acids, linear saturated fatty acids ester One of with salts of straight-chain saturated fatty acids.
5. method according to any of claims 1-4, it is characterised in that: the tank temperature when fermentation is 28~32 DEG C.
6. method according to any of claims 1-4, it is characterised in that: tank when fermentation pressure for 0.05~ 0.14Mpa, the pressure are gauge pressure.
7. method according to any of claims 1-4, it is characterised in that: the pH when fermentation is 5.0~8.5.
8. method according to any of claims 1-4, it is characterised in that: the fermentation period is 100~180h.
9. method according to any of claims 1-4, it is characterised in that: the speed of agitator when fermentation is 500~ 1000rpm, the mixing speed are characterized with the speed of agitator of two layers of turbine disc blade stirring paddle.
10. method according to any of claims 1-4, it is characterised in that: in the fermentation process, the mixing speed and Ventilation quantity meets the following conditions:
0.6-0.00042A≤F≤0.8-0.00038A;
Wherein: A indicates that the numerical value of mixing speed, the numerical value are the numerical value as unit of rpm;The mixing speed is with two layers of turbine The speed of agitator of disk blade stirring paddle characterizes;
F indicates that the numerical value of ventilation quantity, the numerical value are the numerical value as unit of vvm.
CN201711379782.4A 2017-12-20 2017-12-20 Method for producing long-chain dicarboxylic acid by fermentation Active CN109943599B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711379782.4A CN109943599B (en) 2017-12-20 2017-12-20 Method for producing long-chain dicarboxylic acid by fermentation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711379782.4A CN109943599B (en) 2017-12-20 2017-12-20 Method for producing long-chain dicarboxylic acid by fermentation

Publications (2)

Publication Number Publication Date
CN109943599A true CN109943599A (en) 2019-06-28
CN109943599B CN109943599B (en) 2023-04-14

Family

ID=67004801

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711379782.4A Active CN109943599B (en) 2017-12-20 2017-12-20 Method for producing long-chain dicarboxylic acid by fermentation

Country Status (1)

Country Link
CN (1) CN109943599B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021073011A1 (en) * 2019-10-18 2021-04-22 上海凯赛生物技术股份有限公司 Strain for producing long-chain dicarboxylic acids and fermentation method therefor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1257126A (en) * 1998-12-16 2000-06-21 中国石油化工集团公司 Process for producing alpha, omega-long chain binary acid by using microorganism fermentation
CN1570124A (en) * 2004-05-12 2005-01-26 上海凯赛生物技术研发中心有限公司 Long chain normal dibasic acid production method
CN104862348A (en) * 2014-02-26 2015-08-26 中国科学院过程工程研究所 Method for fermentation-membrane separation combined production of long-chain dicarboxylic acid
CN104862347A (en) * 2014-02-26 2015-08-26 中国科学院过程工程研究所 Method for producing long-chain binary acid through fermentation separation coupling

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1257126A (en) * 1998-12-16 2000-06-21 中国石油化工集团公司 Process for producing alpha, omega-long chain binary acid by using microorganism fermentation
CN1570124A (en) * 2004-05-12 2005-01-26 上海凯赛生物技术研发中心有限公司 Long chain normal dibasic acid production method
CN104862348A (en) * 2014-02-26 2015-08-26 中国科学院过程工程研究所 Method for fermentation-membrane separation combined production of long-chain dicarboxylic acid
CN104862347A (en) * 2014-02-26 2015-08-26 中国科学院过程工程研究所 Method for producing long-chain binary acid through fermentation separation coupling

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
王玉亭等: "利用醋酸衍生物发酵制取长链二元酸", 《石油炼制与化工》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021073011A1 (en) * 2019-10-18 2021-04-22 上海凯赛生物技术股份有限公司 Strain for producing long-chain dicarboxylic acids and fermentation method therefor

Also Published As

Publication number Publication date
CN109943599B (en) 2023-04-14

Similar Documents

Publication Publication Date Title
Ghose et al. Rapid ethanol fermentation of cellulose hydrolysate. II. Product and substrate inhibition and optimization of fermentor design
TWI608097B (en) A microorganism producing lactic acid and a method for producing lactic acid using the same
CN107119002B (en) Recombinant bacterium for synthesizing 3-hydroxypropionic acid and construction method and application thereof
CN104487582A (en) Method for preparing organic acid by batch-feeding carbon source substrate and base
CN102076863A (en) Process for producing organic acid
CN113186147A (en) Fermentation method for improving production of porcine myoglobin by pichia pastoris engineering bacteria
AU762656B2 (en) Method of producing gamma-decalactone
CN100363490C (en) Metabolically engineered micro-organisms having reduced production of undesired metabolic products
CN107815446A (en) A kind of high cell density fermentation for recombinating nitrile hydratase Recombinant organism
Yang et al. Production of erythritol from glucose by an osmophilic mutant of Candida magnoliae
CN109943598A (en) A kind of method of fermenting and producing long-chain biatomic acid
CN101821399A (en) Method for production of succinic acid
CN109943599A (en) A kind of method of fermenting and producing long-chain biatomic acid
CN107227286A (en) Genetically engineered bacterium capable of producing succinic acid at high yield, and construction method and application thereof
CN1952164A (en) Combined fermentation process for producing D-lactic acid
CN111304138B (en) Recombinant escherichia coli for producing beta-carotene and construction method and application thereof
CN106755166B (en) Method for catalytically synthesizing nicotinamide by high molecular weight nitrile hydratase engineering bacteria
CN113293107B (en) Saccharomyces cerevisiae for industrial production with high organic acid tolerance and construction method thereof
CN114369628A (en) Method for producing long-chain dicarboxylic acid by biological fermentation
CN111718968A (en) Method for increasing yield of medium-chain fatty acid of mucor circinelloides WJ11
Zhou et al. Influence of glucose feeding on the ligninolytic enzyme production of the white-rot fungus Phanerochaete chrysosporium
CN110951766A (en) Method for synthesizing L-ornithine by metabolizing mannitol by using recombinant corynebacterium glutamicum
CN106337064B (en) Production method of L-malic acid
CN109868294A (en) A method of continuously ferment and produces long-chain biatomic acid
CN114507611B (en) High-temperature-resistant yeast for producing alpha-ketoglutarate and fermentation method

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information

Address after: 4 / F, building 5, No. 1690, Cailun Road, Shanghai Free Trade Zone

Applicant after: CATHAY R&D CENTER Co.,Ltd.

Applicant after: CATHAY INDUSTRIAL BIOTECH Ltd.

Address before: 200120 Shanghai Zhangjiang High Tech Park of Pudong New Area Cailun Road No. 5 No. 1690

Applicant before: CATHAY R&D CENTER Co.,Ltd.

Applicant before: CATHAY INDUSTRIAL BIOTECH Ltd.

CB02 Change of applicant information
TA01 Transfer of patent application right

Effective date of registration: 20191030

Address after: 4 / F, building 5, No. 1690, Cailun Road, Shanghai Free Trade Zone

Applicant after: CATHAY R&D CENTER Co.,Ltd.

Applicant after: CIBT USA

Address before: 201203 floor 4, building 5, No. 1690, Cailun Road, Shanghai pilot Free Trade Zone

Applicant before: CATHAY R&D CENTER Co.,Ltd.

Applicant before: CATHAY INDUSTRIAL BIOTECH Ltd.

TA01 Transfer of patent application right
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20231130

Address after: 4 / F, building 5, No. 1690, Cailun Road, free trade zone, Pudong New Area, Shanghai

Patentee after: CATHAY R&D CENTER Co.,Ltd.

Patentee after: CIBT USA

Patentee after: Kasai (Shanghai) Biotechnology Co.,Ltd.

Address before: 4 / F, building 5, No. 1690, Cailun Road, Shanghai pilot Free Trade Zone, 201203

Patentee before: CATHAY R&D CENTER Co.,Ltd.

Patentee before: CIBT USA

TR01 Transfer of patent right