CN108424476A - A kind of technology of Gracilaria seaweed high usage extraction agar - Google Patents
A kind of technology of Gracilaria seaweed high usage extraction agar Download PDFInfo
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- CN108424476A CN108424476A CN201810215066.0A CN201810215066A CN108424476A CN 108424476 A CN108424476 A CN 108424476A CN 201810215066 A CN201810215066 A CN 201810215066A CN 108424476 A CN108424476 A CN 108424476A
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- agar
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/0003—General processes for their isolation or fractionation, e.g. purification or extraction from biomass
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- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
The invention discloses the technologies that a kind of Gracilaria seaweed high usage extracts agar, and " low alkali high temperature method " is used to pre-process frond, reduce the usage amount of alkali, improve product strength；It carries out carrying glue using " high-temperature pressurizing method ", effectively improves rate of gum output;And the production cycle can be shortened；Develop multi-stage oscillating screen filtering technique, by the filtering of the frond of incomplete plastic emitting return it is secondary carry glue, reduce waste and putting forward glue rate;Fertilizer, feed addictive are processed into residue modification simultaneously, greatly improve the comprehensive utilization ratio of raw material.
Description
Technical field
The invention belongs to the technical field of producing that Gracilaria seaweed high usage extracts agar product, and in particular to a kind of
The production Technology of the production technology of agar more particularly to a kind of Gracilaria seaweed high usage extraction agar product.
Background technology
Agar, scientific name agar-agar also known as agar, agar, agel-agal etc. are the polysaccharide that can be extracted in morning resource red algae from ocean
Class colloid, extensive in sector applications such as biotechnology, medicine, food, daily use chemicals, agar is used to that in food food product can be substantially change
Matter improves the class of food.Its main feature is that having coagulability, stability can form the physical chemistry such as synthesis with some substances
Property can be used as thickener, coagulator, suspending agent, emulsifier, antistaling agent and stabilizer.Agar is in chemical industry, medicine section
It grinds, culture medium, ointment base and other purposes can be made.Currently, the producer of domestic production agar is more, typically traditional adds
Work method, mostly using caustic dip, → bleaching → is acidified → boils the traditional handicraft process of glue to process, and needs the highly basic used, strong
Acid and chlorion are serious " triple " pollutions, and cost of sewage disposal is high, and environmental cost is high.Individual workship's large-scale production simultaneously, it is raw
It produces equipment to fall behind, such as hot air drying system that conventional filter cartridge is traditional, it is big to there is energy consumption, and production capacity is low, integrated journey
Spend the problems such as low.Although the situation that profit is considerable and supply falls short of demand, China's agar processing industry is totally presented in agar industry
Development it is but backward by production technology, environmental pollutants discharge is serious, comprehensive utilization ratio is low etc., and various aspects are restricted.
Invention content
The present invention provides the production Technology of Gracilaria seaweed high usage extraction agar product, and the technology to be solved is asked
Topic is to improve the utilization rate of the high usage of Gracilaria seaweed extraction agar product, residue.In order to solve the above technical problems, this
Technical solution is used by invention：It uses " low alkali high temperature method " to pre-process frond, reduces the usage amount of alkali, improve production
Product intensity；It carries out carrying glue using " high-temperature pressurizing method ", effectively improves rate of gum output;And the production cycle can be shortened；The multistage vibration of exploitation
It is sieved through filtering technology, that improves raw material puies forward glue rate, while fertilizer, feed addictive are processed into residue modification, greatly improve Gracilaria
The comprehensive utilization ratio of seaweed.It is realized by following steps：
1. extracting the high usage production technology of high activity agar sugar product in red algae, it is characterised in that：
Include the following steps：
A. Gracilaria seaweed raw material frond is impregnated 0.5-1.0 hours with the lye of a concentration of 40-80g/L at 80-100 DEG C；
B. it filters, frond is cleaned with clear water；
C. the acid solution for the concentration that the mass percent of frond is 0.20-0.50% is impregnated 0.5-1.0 hours under room temperature；
D. it filters, it is 5.5-7.0 that frond, which is cleaned with clear water to PH,；
E. frond is added tap water and carries out carrying glue for the first time under 100-110 DEG C and 0.08-0.1MPa of pressure；
F. to the mixed liquor of gained by multi-stage oscillating screen be obtained by filtration preparatory processing completion filtrate, frond, impurity；
G. filtrate is added activated carbon decolorizing and is filtered, and obtains glue, algae-residue；
H. the frond that preparatory processing described in step E is completed carries glue by the way that step D progress is secondary again, obtains mixed liquor using step
Rapid F obtains glue and algae-residue；
I. agar powder is made through cooling, dehydration, drying, crushing in first time and the glue mixing carried for the second time obtained by glue, or
Agar strip product is made through cooling, plane item, freezing, dehydration of thawing, drying；Residue can be made into fertilizer or feed be made after changing alkalinity
Additive；
J. strip agar finished product is made after the drying of strip agar；
K. after powdered agar drying, powdered agar finished product is made in packaging after sterilizing.
By the above-mentioned description to structure of the invention it is found that compared to the prior art, the invention has the advantages that：The project
Realize that high level chemical industry and comprehensive utilization are greatly improved using low alkali pressing technology, secondary gelatin extraction technique using integrated process units
Agar recovery rate and Gel baits, can by red algae low value marine organisms, develop at feed addictive, fertilizer, strip agar at
The multiple products such as product, powdered agar finished product；The glue rate that puies forward is effectively improved, and alkali usage amount can be reduced；Develop multi-stage oscillating screen filtering
Technique improves raw material and puies forward glue rate, while fertilizer, feed addictive are processed into residue modification, greatly improve the comprehensive utilization of red algae
Rate.
Specific implementation mode
The embodiment of the present invention is described in further detail below lower body embodiment.
First embodiment：1. extracting the high usage production technology of high activity agar sugar product in red algae, it is characterised in that：
Include the following steps：
A. Gracilaria seaweed raw material frond is impregnated 0.5-1.0 hours with the lye of a concentration of 40-80g/L at 80-100 DEG C, alkali
Liquid dosage is 15 ~ 20 times of frond；
B. it filters, it is 5.5-7.0 that frond, which is cleaned with clear water to PH,；
C. the acid solution for the concentration that the mass percent of frond is 0.20-0.50% is impregnated 0.5-1.0 hours under room temperature, acid solution
Dosage be frond weight 10-20 times；
D. it filters, it is 5.5-7.0 that frond, which is cleaned with clear water to PH,；
E. frond is added tap water and carries out carrying glue for the first time under the pressure of 100-110 DEG C and 0.08-0.1MPa, carries the glue time and is
20-60min；
F. to the mixed liquor of gained by multi-stage oscillating screen be obtained by filtration preparatory processing completion filtrate, frond, impurity；
G. filtrate is added activated carbon decolorizing and is filtered, and obtains glue, algae-residue, the dosage of activated carbon is 1.0-10.0g/L；
H. the frond that preparatory processing described in step E is completed carries glue by the way that step D progress is secondary again, obtains mixed liquor using step
Rapid F obtains glue and algae-residue；
I. agar powder is made through cooling, dehydration, drying, crushing in first time and the glue mixing carried for the second time obtained by glue, or
Agar strip product is made through cooling, plane item, freezing, dehydration of thawing, drying；Residue can be made into fertilizer or feed be made after changing alkalinity
Additive；
J. strip agar finished product is made after the drying of strip agar；
K. after powdered agar drying, powdered agar finished product is made in packaging after sterilizing.
Claims (6)
1. extracting the high usage production technology of high activity agar sugar product in red algae, it is characterised in that：
Include the following steps：
A. Gracilaria seaweed raw material frond is impregnated 0.5-1.0 hours with the lye of a concentration of 40-80g/L at 80-100 DEG C；
B. it filters, frond is cleaned with clear water；
C. the acid solution for the concentration that the mass percent of frond is 0.20-0.50% is impregnated 0.5-1.0 hours under room temperature；
D. it filters, it is 5.5-7.0 that frond, which is cleaned with clear water to PH,；
E. frond is added tap water and carries out carrying glue for the first time under 100-110 DEG C and 0.08-0.1MPa of pressure；
F. to the mixed liquor of gained by multi-stage oscillating screen be obtained by filtration preparatory processing completion filtrate, frond, impurity；
G. filtrate is added activated carbon decolorizing and is filtered, and obtains glue, algae-residue；
H. the frond that preparatory processing described in step E is completed carries glue by the way that step D progress is secondary again, obtains mixed liquor using step
Rapid F obtains glue and algae-residue；
I. agar powder is made through cooling, dehydration, drying, crushing in first time and the glue mixing carried for the second time obtained by glue, or
Agar strip product is made through cooling, plane item, freezing, dehydration of thawing, drying；Residue can be made into fertilizer or feed be made after changing alkalinity
Additive；
J. strip agar finished product is made after the drying of strip agar；
K. after powdered agar drying, powdered agar finished product is made in packaging after sterilizing.
2. the production Technology of Gracilaria seaweed high usage extraction agar product according to claim 1, feature
It is：In the step A, lye uses sodium hydroxide solution or potassium hydroxide solution, and the dosage of lye is weight in frond
15-20 times.
3. the production Technology of Gracilaria seaweed high usage extraction agar product according to claim 1, feature
It is：In step B, D, it is 5.5-7.0 that frond is washed till PH with clear water.
4. the production Technology of Gracilaria seaweed high usage extraction agar product according to claim 1, feature
It is：In the step C, acid solution uses hydrochloric acid or sulfuric acid solution, and 10-20 times that the dosage of acid solution is frond weight.
5. the production Technology of Gracilaria seaweed high usage extraction agar product according to claim 1, feature
It is：In the step E, it is 20-60min to carry the glue time.
6. the production Technology of Gracilaria seaweed high usage extraction agar product according to claim 1, feature
It is：The dosage of activated carbon is 1.0-10.0g/L in the step G.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810215066.0A CN108424476A (en) | 2018-03-15 | 2018-03-15 | A kind of technology of Gracilaria seaweed high usage extraction agar |
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| CN201810215066.0A CN108424476A (en) | 2018-03-15 | 2018-03-15 | A kind of technology of Gracilaria seaweed high usage extraction agar |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110669153A (en) * | 2019-10-25 | 2020-01-10 | 广东海洋大学 | Method for extracting agar from gracilaria |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408678A (en) * | 2013-07-25 | 2013-11-27 | 福建省金燕海洋生物科技股份有限公司 | High-use-ratio manufacturing technology of extracting highly-active agarose product from red algae |
-
2018
- 2018-03-15 CN CN201810215066.0A patent/CN108424476A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408678A (en) * | 2013-07-25 | 2013-11-27 | 福建省金燕海洋生物科技股份有限公司 | High-use-ratio manufacturing technology of extracting highly-active agarose product from red algae |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110669153A (en) * | 2019-10-25 | 2020-01-10 | 广东海洋大学 | Method for extracting agar from gracilaria |
| CN110669153B (en) * | 2019-10-25 | 2022-02-08 | 广东海洋大学 | Method for extracting agar from gracilaria |
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Application publication date: 20180821 |
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