CN107226837A - Oligopeptides γ Glu γ Glu Tyr, dense taste imparting agent, flavoring and preparation method thereof - Google Patents

Oligopeptides γ Glu γ Glu Tyr, dense taste imparting agent, flavoring and preparation method thereof Download PDF

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Publication number
CN107226837A
CN107226837A CN201710511213.4A CN201710511213A CN107226837A CN 107226837 A CN107226837 A CN 107226837A CN 201710511213 A CN201710511213 A CN 201710511213A CN 107226837 A CN107226837 A CN 107226837A
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glu
tyr
oligopeptides
cys
solution
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崔春
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South China University of Technology SCUT
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South China University of Technology SCUT
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K5/00Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof
    • C07K5/04Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof containing only normal peptide links
    • C07K5/08Tripeptides
    • C07K5/0819Tripeptides with the first amino acid being acidic
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L27/00Spices; Flavouring agents or condiments; Artificial sweetening agents; Table salts; Dietetic salt substitutes; Preparation or treatment thereof
    • A23L27/20Synthetic spices, flavouring agents or condiments
    • A23L27/21Synthetic spices, flavouring agents or condiments containing amino acids
    • A23L27/22Synthetic spices, flavouring agents or condiments containing amino acids containing glutamic acids
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23VINDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
    • A23V2200/00Function of food ingredients

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Molecular Biology (AREA)
  • Genetics & Genomics (AREA)
  • Medicinal Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Biophysics (AREA)
  • Biochemistry (AREA)
  • Nutrition Science (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Seasonings (AREA)

Abstract

The invention discloses oligopeptides γ Glu γ Glu Tyr, dense taste imparting agent, flavoring and preparation method thereof.The amino acid sequence of the oligopeptides γ Glu γ Glu Tyr is γ Glu γ Glu Ty.Dense taste imparting agent is made up of the oligopeptides and other peptides.γ Glu γ Glu Tyr of the flavoring containing more than 250mg/kg.This γ glutamine peptides γ Glu γ Glu Tyr are remarkably improved the savoury of food particularly flavouring under 250mg/kg concentration.

Description

Oligopeptides γ-Glu- γ-Glu-Tyr, dense taste imparting agent, flavoring and its preparation Method
Technical field
The present invention relates to the peptide with flavor effect, and in particular to γ-Glutamyl Peptide and its application with savoury.
Background technology
γ-Glutamyl Peptide is deposited with a variety of animals and plants and fermented food, being that a kind of safety is natural extensively, safety food into Point.Its primary structure of common glutathione is γ-Glu-Cys-Gly, is a kind of typical γ-Glutamyl Peptide.Modern study Show that γ-Glutamyl Peptide is relevant with the metabolic activity and physiological function of organism, most of γ-Glutamyl Peptide has calm in addition Depressurize, fatigue of releiving, anticancer removing toxic substances, complexation heavy metal ion, maintain cellular metal ions balance etc. physiological function.
In recent years, it has been found that γ-Glutamyl Peptide also has stronger flavor characteristic.Japanese aginomoto strain formula meeting in 2002 Society is disclosed by exploring the diversified compound with CaSR agonist activities, finds to assign with more excellent dense taste Effect, the dense taste imparting effect particularly with preceding taste type, and with excellent stability, can be easy and produce at low cost The material for being capable of imparting body taste with other there is CaSR to swash there is provided the dense taste imparting agent comprising the material, and by the material The combinations of substances of dynamic agent activity using compound dense taste imparting agent.Include γ-Glu-Abu (L- gamma-glutamyl-L-2- ammonia Base butyric acid) dense taste imparting agent, and the material with other have the combinations of substances of CaSR agonist activities using answer Close dense taste imparting agent (number of patent application 201080024054.1).
Most of γ-Glutamyl Peptide under low consistency conditions has slight astringent taste, with the raising of concentration, γ-paddy ammonia Acyl peptide starts that primary taste is presented.Such as γ-Glu-Glu have delicate flavour, γ-Glu-tyr bitter taste when concentration is 10mmol/L Threshold value is twice of its astringent taste threshold value.In delicate flavour solution, γ-Glutamyl Peptide has savoury, and threshold value is also being decreased obviously.With People further appreciate that scholar has found that γ-Glutamyl Peptide has the feature of savoury material to flavor peptide:1. base in aqueous This insipidness or only slight taste (astringent taste or tart flavour);2. increasing can be cooperateed with other taste compounds in system Effect is acted on, and is added in the solution system containing delicate flavour material, will not change the basic taste sensation intensity of solution, but can coordinate each Taste is planted, dense sense (kokumi) is dramatically increased;3. compared with pure water solution, threshold value is decreased obviously in delicate flavour solution.
Table 1 has reported γ-Glutamyl Peptide flavor characteristic and threshold value list
So far, there is not yet γ-Glu- γ-Glu-Tyr have the report of dense taste.
The content of the invention
It is an object of the invention to overcome deficiencies of the prior art, there is provided one kind utilization glutamine enzymatic synthesis The preparation method of γ-Glutamyl Peptide.
The purpose of the present invention is achieved through the following technical solutions.
A kind of oligopeptides, its amino acid sequence is γ-Glu- γ-Glu-Tyr.
The dense taste imparting agent that the present invention is provided, is combined by the oligopeptides and more than one following peptide:γ-Glu- X-Gly (X represents amino acid or amino acid derivativges), γ-Glu-Val-Y (Y represents amino acid or amino acid derivativges), γ- Glu-Abu、γ-Glu-Ala、γ-Glu-Gly、γ-Glu-Cys、γ-Glu-Met、γ-Glu-Thr、γ-Glu-Val、γ- Glu-Orn、Asp-Gly、Cys-Gly、Cys-Met、Glu-Cys、Gly-Cys、Leu-Asp、D-Cys、γ-Glu-Met(O)、 γ-Glu-γ-Glu-Val、γ-Glu-Val-NH2、γ-Glu-Val-ol、γ-Glu-Ser、γ-Glu-Tau、γ-Glu- Cys (S-Me) (O), γ-Glu-Leu, γ-Glu-Ile, γ-Glu-t-Leu and γ-Glu-Cys (S-Me).
A kind of flavoring containing the oligopeptides, its contain more than 250mg/kg γ-Glu- γ-Glu-Tyr and.
A kind of flavoring containing the oligopeptides, it contains more than 250mg/kg γ-Glu- γ-Glu-Tyr.
A kind of flavoring containing the oligopeptides, the γ-Glu- γ-Glu-Tyr containing more than 1000mg/kg.
The preparation method of the oligopeptides, be specifically:Glutamine and free tyrosine, mol ratio are 1-2:1, it is soluble in water Solution is obtained, regulation reaction pH is 7.0-10.0, adds glutaminase or gamma-glutamyl amine transpeptidase 0.02-1% (w/w), 25-50 DEG C is reacted 3-12 hour, between the rear pH to 7~8 with 4mol/L hydrochloric acid readjustment, 90 DEG C of enzyme 10min that go out, obtain containing γ- Glu- γ-Glu-Tyr reaction solution.Using 5 μm of 4.6x 250mm analytical columns of XSelect HSS T3, mobile phase A liquid is 0.1% (V/V) formic acid-aqueous solution;Mobile phase B liquid is 0.1% (V/V) formic acid-acetonitrile solution, and column temperature is 40 DEG C, and flow velocity is 1mL/min, the μ L of sample size 10 of reaction solution, carry out gradient elution, appearance time is using high performance liquid chromatography to reaction solution 5.320 peak is oligopeptides γ-Glu- γ-Glu-Tyr.
Further, the concentration of the solution GLN is 400-1000mmol/L.
The present invention compared with prior art, has the following advantages that:
1) there is savoury characteristic present invention firstly discloses γ-Glu- γ-Glu-Tyr.
2) make public for the first time and utilize glutaminase or gamma-glutamyl amine transpeptidase catalytic preparation of gamma-Glu- γ-Glu- Tyr。
Brief description of the drawings
Fig. 1 is the liquid chromatogram of mixture after reaction;
Fig. 2 is γ-Glu- γ-Glu-Tyr second order mses figure.
Embodiment
Work further citing, but implementation of the invention and guarantor are specifically implemented to the present invention below in conjunction with accompanying drawing and example Protect not limited to this.
Embodiment 1
By bacillus amyloliquefaciens (Bacillus amyloliquefaciens) SWJS22 (Chinese microorganism strain preservations Administration committee's common micro-organisms center, deposit number is CGMCC No.8425, through in Chinese Patent Application No. Have submitted preservation in 201510222162.4 application proves) fermentation medium (fermentation medium is inoculated in 1% inoculum concentration Composition be:4% dregs of beans, 2% wheat bran, 2% corn flour) in, 37~39 DEG C of fermented and cultured 30h.By zymotic fluid in 4 DEG C, High speed centrifugation 10min under the conditions of 10000r/min, filters to obtain supernatant, i.e. glutaminase crude enzyme liquid.
1000mM glutamine and 600mM tyrosine are dissolved in 100g water, the pH value of solution is adjusted respectively to 9.0, plus Enter 1g crude enzyme liquids, after 40 DEG C respectively reaction 12h, adjusted back with 4mol/L hydrochloric acid after pH to 7.0,90 DEG C of enzyme 10min that go out are contained There is γ-Glu- γ-Glu-Tyr reaction solution.
Using 5 μm of 4.6x 250mm analytical columns of XSelect HSS T3, mobile phase A liquid is 0.1% (V/V) formic acid-water Solution;Mobile phase B liquid is 0.1% (V/V) formic acid-acetonitrile solution, and column temperature is 40 DEG C, and flow velocity is 1mL/min, the sample introduction of reaction solution 10 μ L are measured, gradient elution (condition is carried out to reaction solution using high performance liquid chromatography:90% A liquid and 10% B liquid ladder during 0min It is reduced in degree 5min in 85% A liquid and 15% B liquid, next 5min and is reduced to 20%A liquid and 80% B liquid). 5.320min peak is oligopeptides γ-Glu- γ-Glu-Tyr.Collect 5.320min oligopeptides peak, carry out sensory evaluation and UPLC-MS/MS is analyzed.
UPLC-MS/MS carries out qualitative analysis to reaction product:Including:An Agilent 1290series UPLC System (Agilent Technologies) is used to separate each γ-Glu-peptides, with an elec-trospray Ionization (ESI) mass spectrometer system (Q-TOF MS/MS, Bruker Daltonics) carries out qualitative analysis.Chromatographic column is: Agilent ZORBAX RRHD SB-C18(2.1x 50mm,1.8μm).Sample size is 5 μ L.Liquid-phase condition is:Solution A is 0.1% formic acid-the aqueous solution, and solution B are 0.1% formic acid-acetonitrile solution, and gradient elution program is:0-10%B, 0-5.0min; 10-15%B, 5.0-10.0min;Then 100%B, 10.0-12.0min.MS conditions:Ionization (ionization):Cation Pattern;Drying gas (dry gas):10L/min at 350 DEG C;Nebulizer (nebulizer pressure):25psig; Fragmentor (capillary voltage):30V.UPLC-MS/MS analyses, its testing result such as Fig. 2 are carried out to gleanings.
As shown in Figure 2, its primary structure is γ-Glu- γ-Glu-Tyr.
Embodiment 2
Bacillus subtillis ATCC 6633 is inoculated in the fermentation medium (composition of fermentation medium with 1% inoculum concentration For:4% dregs of beans, 2% wheat bran, 2% corn flour) in, 37~39 DEG C of fermented and cultured 48h.By zymotic fluid in 4 DEG C, 10000r/min Under the conditions of high speed centrifugation 10min, filter to obtain supernatant, i.e. gamma-glutamyl amine transpeptidase crude enzyme liquid.
600mM glutamine and 600mM tyrosine are dissolved in 100g water, the pH value of solution is adjusted respectively to 8.0, is added 1g gamma-glutamyl amine transpeptidase crude enzyme liquids, after 40 DEG C respectively reaction 6h, are adjusted back after pH to 7.0,90 DEG C go out with 4mol/L hydrochloric acid Enzyme 10min, obtains the reaction solution rich in γ-Glu- γ-Glu-Tyr.Divided using 5 μm of 4.6x250mm of XSelect HSS T3 Post is analysed, mobile phase A liquid is 0.1% (V/V) formic acid-aqueous solution;Mobile phase B liquid is 0.1% (V/V) formic acid-acetonitrile solution, column temperature For 40 DEG C, flow velocity is 1mL/min, the μ L of sample size 10 of reaction solution, and gradient elution is carried out to reaction solution using high performance liquid chromatography, The oligopeptides peak for collecting 5.320min is γ-Glu- γ-Glu-Tyr.
Embodiment 3
Add in 0.025% (g/g) γ-Glu- γ-Glu-Tyr soy sauce, evaluate its flavor characteristic variations.Wherein, soy sauce For commercially available extra large day Gold Label soy.Sensory evaluation experiment is made up of by 30-41 Sui 7 males and 9 women of sensory evaluation experience. Analyses Methods for Sensory Evaluation Results shows, adds 0.025% γ-Glu- γ-Glu-Tyr soy sauce, and its savoury, which has, to be significantly improved.
Embodiment 4
0.033g and 0.05g γ-Glu- γ-Glu-Tyr, and 0.5g salt and 0.3g monosodium glutamates are weighed, is dissolved in In 100g water, and sensory evaluation is carried out with blank sample (0.5g salt is dissolved in 100g water).Sensory evaluation experiment is had by 30-41 Sui 7 males of sensory evaluation experience and 9 women compositions, Analyses Methods for Sensory Evaluation Results are shown in Table 1.
From table 1, threshold values of the γ-Glu- γ-Glu-Tyr in saline solution is respectively 0.05g/100g, adds monosodium glutamate The stimulation that can obviously reduce γ-Glu- γ-Glu-Tyr is in taste threshold value, is 0.033g/100g.
Table 1
Have in 16 sensory evaluation groups 11 people find addition γ-Glu- γ in 0.5% salt and 0.3% monosodium glutamate solution- Glu-Tyr sample has significant savoury enhancing effect, and 4 people think that savoury slightly has enhancing.
Embodiment 4
Fresh Grade Breast is mixed with 10 times of weight deionized waters, 100 DEG C are boiled after 30min, filtering remove insoluble substance and After grease, the salt for adding chicken soup weight 0.3%, the γ-Glu- γ-Glu- of chicken soup weight 0.04% and 0.06% are added respectively Tyr, and transfer to sensory evaluation group to evaluate the savoury of chicken soup, it the results are shown in Table 2.Sensory evaluation experiment is had by 30-41 Sui 11 males of sensory evaluation experience and 9 women compositions.
Table 2
γ-Glu- γ-the Glu-Tyr of addition 0.04% and 0.06% in table 2, chicken soup, more than more than 90% Sensory evaluation member thinks that the savoury of chicken soup has significantly or is increased slightly.

Claims (8)

1. a kind of oligopeptides γ-Glu- γ-Glu-Tyr, it is characterised in that its amino acid sequence is γ-Glu- γ-Glu-Tyr.
2. dense taste imparting agent, it is characterised in that combined as oligopeptides described in claim 1 and more than one following peptide: γ-Glu-X-Gly、γ-Glu-Val-Y、γ-Glu-Abu、γ-Glu-Ala、γ-Glu-Gly、γ-Glu-Cys、γ-Glu- Met、γ-Glu-Thr、γ-Glu-Val、γ-Glu-Orn、Asp-Gly、Cys-Gly、Cys-Met、Glu-Cys、Gly-Cys、 Leu-Asp、D-Cys、γ-Glu-Met(O)、γ-Glu-γ-Glu-Val、γ-Glu-Val-NH2、γ-Glu-Val-ol、 γ-Glu-Ser、γ-Glu-Tau、γ-Glu-Cys(S-Me)(O)、γ-Glu-Leu、γ-Glu-Ile、γ-Glu-t-Leu With γ-Glu-Cys (S-Me);X, Y represent amino acid or amino acid derivativges.
3. a kind of flavoring containing oligopeptides described in claim 1, it is characterised in that the γ-Glu- containing more than 250mg/kg γ-Glu-Tyr。
4. a kind of flavoring containing dense taste imparting agent described in claim 2, it is characterised in that containing more than 250mg/kg γ-Glu-γ-Glu-Tyr。
5. the flavoring according to claim 3 or 4, it is characterised in that the γ-Glu- γ containing more than 1000mg/kg- Glu-Tyr。
6. the preparation method of oligopeptides described in claim 1, it is characterised in that glutamine and free tyrosine, mol ratio are 1-2: 1, soluble in water to obtain solution, regulation reaction pH is 7.0-10.0, addition glutaminase or gamma-glutamyl amine transpeptidase 0.02- 1%(w/w), reacted 3-12 hours at 25-50 DEG C, between the rear pH to 7 ~ 8 with 4 mol/L hydrochloric acid readjustment, 90 DEG C of min of enzyme 10 that go out, Obtain the reaction solution rich in γ-Glu- γ-Glu-Tyr.
7. the preparation method of oligopeptides according to claim 6, it is characterised in that:Using 5 μm of 4.6x of XSelect HSS T3 250mm analytical columns, mobile phase A liquid is 0.1%(V/V)Formic acid-the aqueous solution;Mobile phase B liquid is 0.1% (V/V) formic acid-second Nitrile solution, column temperature is 40 DEG C, and flow velocity is 1 mL/min, the μ L of sample size 10 of reaction solution, using high performance liquid chromatography to reaction Liquid carries out gradient elution, and appearance time is oligopeptides γ-Glu- γ-Glu-Tyr for 5.320min peak.
8. preparation method according to claim 6, it is characterised in that the concentration of the solution GLN is 400- 1000mmol/L。
CN201710511213.4A 2017-06-29 2017-06-29 Oligopeptides γ Glu γ Glu Tyr, dense taste imparting agent, flavoring and preparation method thereof Pending CN107226837A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11659854B2 (en) 2017-07-13 2023-05-30 Fuji Oil Holdings Inc. Method for imparting body taste to food

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11659854B2 (en) 2017-07-13 2023-05-30 Fuji Oil Holdings Inc. Method for imparting body taste to food

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Application publication date: 20171003