CN111961226A - Process for preparing whey protein gels - Google Patents

Process for preparing whey protein gels Download PDF

Info

Publication number
CN111961226A
CN111961226A CN201910419378.8A CN201910419378A CN111961226A CN 111961226 A CN111961226 A CN 111961226A CN 201910419378 A CN201910419378 A CN 201910419378A CN 111961226 A CN111961226 A CN 111961226A
Authority
CN
China
Prior art keywords
whey protein
preparation
weight
citric acid
citrate
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.)
Pending
Application number
CN201910419378.8A
Other languages
Chinese (zh)
Inventor
顾琪玫
杨岚钧
刘整岭
杨炳辉
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.)
Food Industry Research and Development Institute
Original Assignee
Food Industry Research and Development Institute
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 Food Industry Research and Development Institute filed Critical Food Industry Research and Development Institute
Priority to CN201910419378.8A priority Critical patent/CN111961226A/en
Publication of CN111961226A publication Critical patent/CN111961226A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00Processes of treating or compounding macromolecular substances
    • C08J3/02Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
    • C08J3/03Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
    • C08J3/075Macromolecular gels
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2389/00Characterised by the use of proteins; Derivatives thereof
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00Use of organic ingredients
    • C08K5/04Oxygen-containing compounds
    • C08K5/09Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • C08K5/098Metal salts of carboxylic acids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Medicinal Preparation (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)
  • Dairy Products (AREA)

Abstract

A low-acidity preparation method of whey protein gel is characterized by adding citric acid, sodium citrate, potassium citrate and sodium bicarbonate, sterilizing and forming gel, thus preparing the whey protein gel which does not contain thickening agent or gelling agent and has high whey protein content, desirable properties (hardness, water retention and gel strength) and palatability.

Description

Process for preparing whey protein gels
Technical Field
The invention relates to a preparation method of whey protein gel, in particular to a low-acidity preparation method of whey protein gel.
Background
Whey protein is a generic term for the residual protein in whey after casein precipitation at ph4.6, and has been widely used in various food fields because of its rich nutritional value and special functionality. In recent years, the rise of sports tides causes the production value of products such as whey protein powder, whey protein instant food, whey protein nutrition bars and the like in the market of sports nutrition supplements to continuously rise.
Whey proteins usually form aggregates (agglomerations) or gels (gels) when heated above 70 ℃ in a low acid environment (> ph4.6), but the gels formed have voids and undesirable properties (hardness, water retention and gel strength) and are therefore not conducive to heat sterilization. The whey protein gel prepared by the acidification process (pH below 4.6) can reduce the threshold of heat sterilization (sterilization can be completed at about 95 ℃) and avoid serious denaturation of whey protein, but in order to increase the stability of the whey protein gel, other edible gels are added in the process to gel together.
Disclosure of Invention
It is a principal object of the present invention to provide a low acidity method for the preparation of whey protein gels without thickeners or gelling agents.
It is another object of the present invention to provide a low acidity method for preparing a whey protein gel having a pH of 5.9-7.5, a gel strength of 25.10-158.6g, a hardness of 8.15-134.726g, and a water retention of 24.12-68.99%.
It is another object of the present invention to provide a simple method for preparing a whey protein gel with low acidity, wherein only up to four common edible materials, i.e., citric acid, sodium citrate, potassium citrate, and sodium bicarbonate, are used in addition to whey protein.
It is a further object of the present invention to provide a low acidity method for the preparation of whey protein gels which can use commercial sterilization at 121 ℃ without adversely affecting the properties (hardness, water retention and gel strength) and palatability of the whey protein gel.
The low-acidity preparation method of the whey protein gel, which is completed according to the content of the invention, comprises the following steps: (1) dispersing or dissolving 8-15 wt% whey protein powder in water or an aqueous citric acid solution having less than 0.5 wt% citric acid; (2) adding 0-0.5 wt% of sodium citrate, 0-0.5 wt% of potassium citrate and 0-0.5 wt% of sodium bicarbonate to the dispersion or aqueous solution obtained in the step (1), wherein the sodium citrate and the potassium citrate cannot be used simultaneously as 0; when one of the sodium citrate and the potassium citrate is 0, the citric acid aqueous solution is required to be used in the step (1); and the sodium bicarbonate is optionally added; (3) and (3) carrying out heat sterilization heat treatment on the intermediate product obtained in the step (2), and cooling to form the whey protein gel, wherein the weight percentages of the intermediate product and the whey protein gel are based on the sum of the weight percentages of water, citric acid, sodium citrate, potassium citrate and sodium bicarbonate.
The addition of sodium bicarbonate in the process of the present invention may adjust the pH of the whey protein gel formed, as well as the firmness of the whey protein gel formed.
Preferably, 0.1 to 0.5% by weight of sodium bicarbonate is added in the aforementioned step (2).
Preferably, the heat sterilization heat treatment of the step (3) is heating at 100-140 ℃ for 1-20 minutes. More preferably, the heating is carried out at 121 ℃ for 10 minutes.
Preferably, in the step (1), 8 wt% of the whey protein powder is dispersed or dissolved in water or an aqueous citric acid solution.
Preferably, the foregoing step (1) disperses 8-15 wt% whey protein powder in water; step (2) to the dispersion obtained in the above (1) were added 0.05 to 0.5% by weight of sodium citrate and 0.05 to 0.5% by weight of potassium citrate, except that sodium bicarbonate was not added.
Preferably, the foregoing step (1) disperses 8-15 wt% whey protein powder in water; step (2) adding 0.05 to 0.5% by weight of sodium citrate, 0.05 to 0.5% by weight of potassium citrate, and 0.1 to 0.5% by weight of sodium bicarbonate to the dispersion obtained in the above (1).
Preferably, in the step (1), 8-15 wt% of whey protein powder is dissolved in citric acid aqueous solution; step (2) to the aqueous solution obtained in the above (1) were added 0.05 to 0.4% by weight of sodium citrate and 0.05 to 0.4% by weight of potassium citrate, except that sodium bicarbonate was not added.
Preferably, in the step (1), 8-15 wt% of whey protein powder is dissolved in citric acid aqueous solution; step (2) adding 0.05-0.4 wt% of sodium citrate, 0.05-0.4 wt% of potassium citrate, and 0.1-0.5 wt% of sodium bicarbonate to the aqueous solution obtained in the above step (1).
Preferably, the whey protein gel formed in the step (3) has a pH of 5.9-7.5, a gel strength of 25.10-158.6g, a hardness of 8.15-134.726g, and a water retention of 24.12-68.99%.
Drawings
Fig. 1 is a photograph of a whey protein gel product prepared according to example 2 of the present invention.
Fig. 2 is a photograph of the whey protein gel product prepared in example 3 of the present invention.
Fig. 3 is a photograph of the whey protein gel product prepared in example 4 of the present invention.
Fig. 4 is a photograph of the whey protein gel product prepared in example 5 of the present invention.
Detailed Description
The invention provides a low-acidity preparation method of whey protein gel, wherein the protein is formed into gel by screening hydrophobic interaction of electrons or special ions through the addition of mineral salt ions. The concentration and type of mineral salts have an important effect on the structure, spatial shape and gel properties of the protein gel, with lower concentrations of mineral salts inducing the formation of clear filamentous gels and at relatively higher concentrations of mineral salts forming cloudy particulate gels. In the invention, the whey protein is in a liquid state in the low-acidity solution process by adding the citric acid and the derivative salts thereof and the sodium bicarbonate, and stable gel is formed after commercial sterilization treatment (121 ℃), so that the preparation process is simple and no gel is required to be added. The sterilized whey protein gel has stable quality and good palatability.
The formula of the invention has simple composition and accords with the trend of less-added clean marking. From the view point of the manufacturing process, the invention only has one commercial sterilization heat treatment step after the components are mixed, and the procedure is simple.
Whey proteins suitable for use in the present invention include, but are not limited to, refined whey protein powders (whey protein content greater than 80% by weight), such as whey protein concentrates (available, for example, from fonteria corporation, New Zealand; Lactoprot corporation, Germany (trade names LACTOMIN 80-S and LACTOMIN 80-S HG); Leprino Food corporation, USA), and whey protein isolates (e.g., Bipro, USA).
The weight% of the raw materials used in the following examples are based on the sum of the weights of water, citric acid, sodium citrate, potassium citrate and sodium bicarbonate.
Example 1
Preparation method
(1) Dissolving citric acid in water to obtain 0, 0.15% and 0.3% citric acid aqueous solutions; (2) adding 8% refined whey protein powder (FONTERRA, New Zealand) into water or citric acid water solution; (3) adding 0, 0.25% and 0.5% of sodium citrate, 0, 0.25% and 0.5% of potassium citrate and 0, 0.25% and 0.5% of sodium bicarbonate into the mixed solution in the step (2); (4) the mixed whey protein solution of (3) above was sterilized commercially (121 ℃, 10 minutes), and cooled to form a whey protein gel.
Gel Strength determination
With reference to the international standard (ISO/GMIA; P/0.5& HDP/BJB), a standard probe P/0.5 was used, with a pressing speed of 1mm/sec, down to a maximum force of 4 mm.
Measurement of hardness
Referring to the method of the "Zhenhai et al" (Asahi et al, China agricultural science, 41(3): 803-: 5mm/sec, test speed: 1mm/sec, speed after test: 10mm/sec, and a value measured by pressing down to a force (5g) felt by the sample and then pressing down by 4 mm.
Water retention determination
The method of the first embodiment is characterized in that the method is slightly modified by referring to the method of the first embodiment of the third embodiment of the present invention (Asahi et al, 41(3): 803: (807) (2008)), 4-5g of whey protein gel sample is weighed (W1), wrapped and fixed in a 50ml centrifugal tube with gauze, centrifuged at 3000rpm for 6mins, weighed and centrifuged (W2), the water retention is calculated according to the following sequence, and the experiment is repeated for 2 times.
Water retention (%) [ sample weight after centrifugation (W2)/sample weight weighed before centrifugation (W1) ] × 100
The raw materials used, the amounts used and the results of the texture measurements (gel strength, hardness and water retention) are given in Table 1.
TABLE 1
Figure BDA0002065505540000041
Figure BDA0002065505540000051
Example 2
The procedure and measurements of example 1 were repeated with the following compositions of Table 2. Table 2 also shows the results of the measurement.
TABLE 2
Figure BDA0002065505540000052
Example 3
The procedure and measurements of example 1 were repeated with the following compositions of Table 3. Table 3 also shows the results of the measurement.
TABLE 3
Figure BDA0002065505540000061
Example 4
The procedure and measurements of example 1 were repeated with the composition of table 4 below, except that granulated sugar was further dissolved in water together with citric acid. Table 4 also shows the results of the measurement.
TABLE 4
Figure BDA0002065505540000062
Example 5
The procedure and measurements of example 1 were repeated with the following composition of table 5, except that granulated sugar, liquid lemon flavor and honey were further dissolved in water together with citric acid. Table 5 also shows the results of the measurement.
TABLE 5
Figure BDA0002065505540000063
Figure BDA0002065505540000071
Fig. 1 to 4 show the appearance of the whey protein gel products prepared in examples 2 to 5, wherein fig. 1, 2 and 4 are yellow opaque whey protein gels, and fig. 3 is a light yellow transparent whey protein gel.
Description of the symbols
None.

Claims (10)

1. A low-acidity preparation method of whey protein gel comprises the following steps: (1) dispersing or dissolving 8-15 wt% whey protein powder in water or an aqueous citric acid solution having less than 0.5 wt% citric acid; (2) adding 0-0.5 wt% of sodium citrate, 0-0.5 wt% of potassium citrate and 0-0.5 wt% of sodium bicarbonate to the dispersion or aqueous solution obtained in the step (1), wherein the sodium citrate and the potassium citrate cannot be used simultaneously as 0; when one of the sodium citrate and the potassium citrate is 0, the citric acid aqueous solution is required to be used in the step (1); and the sodium bicarbonate is optionally added; (3) and (3) carrying out heat sterilization heat treatment on the intermediate product obtained in the step (2), and cooling to form the whey protein gel, wherein the weight percentages of the intermediate product and the whey protein gel are based on the sum of the weight percentages of water, citric acid, sodium citrate, potassium citrate and sodium bicarbonate.
2. The preparation method according to claim 1, wherein 0.1 to 0.5% by weight of sodium bicarbonate is added in step (2).
3. The preparation method according to claim 1, wherein the heat sterilization heat treatment in the step (3) is heating at 100-140 ℃ for 1-20 minutes.
4. The preparation method according to claim 1, wherein the heat sterilization heat treatment of the step (3) is heating at 121 ℃ for 10 minutes.
5. The preparation method according to claim 1, wherein the 8 wt% whey protein powder is dispersed or dissolved in water or an aqueous citric acid solution in the step (1).
6. The preparation method according to claim 1, wherein the step (1) disperses 8-15 wt% of whey protein powder in water; step (2) to the dispersion obtained in the above (1) were added 0.05 to 0.5% by weight of sodium citrate and 0.05 to 0.5% by weight of potassium citrate, except that sodium bicarbonate was not added.
7. The preparation method according to claim 1, wherein the step (1) disperses 8-15 wt% of whey protein powder in water; step (2) adding 0.05 to 0.5% by weight of sodium citrate, 0.05 to 0.5% by weight of potassium citrate, and 0.1 to 0.5% by weight of sodium bicarbonate to the dispersion obtained in the above (1).
8. The preparation method according to claim 1, wherein the step (1) of dissolving 8-15 wt% of whey protein powder in an aqueous citric acid solution; step (2) to the aqueous solution obtained in the above (1) were added 0.05 to 0.4% by weight of sodium citrate and 0.05 to 0.4% by weight of potassium citrate, except that sodium bicarbonate was not added.
9. The preparation method according to claim 1, wherein the step (1) of dissolving 8-15 wt% of whey protein powder in an aqueous citric acid solution; step (2) adding 0.05-0.4 wt% of sodium citrate, 0.05-0.4 wt% of potassium citrate, and 0.1-0.5 wt% of sodium bicarbonate to the aqueous solution obtained in the above step (1).
10. The preparation method of claim 1, wherein the whey protein gel formed in step (3) has a pH of 5.9-7.5, a gel strength of 25.10-158.6g, a hardness of 8.15-134.726g, and a water retention of 24.12-68.99%.
CN201910419378.8A 2019-05-20 2019-05-20 Process for preparing whey protein gels Pending CN111961226A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910419378.8A CN111961226A (en) 2019-05-20 2019-05-20 Process for preparing whey protein gels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910419378.8A CN111961226A (en) 2019-05-20 2019-05-20 Process for preparing whey protein gels

Publications (1)

Publication Number Publication Date
CN111961226A true CN111961226A (en) 2020-11-20

Family

ID=73357929

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910419378.8A Pending CN111961226A (en) 2019-05-20 2019-05-20 Process for preparing whey protein gels

Country Status (1)

Country Link
CN (1) CN111961226A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08242771A (en) * 1995-03-10 1996-09-24 Snow Brand Milk Prod Co Ltd Japanese style confection and its production
CN1671300A (en) * 2002-07-29 2005-09-21 大塚制药株式会社 Gel-type drink composition
CN101253895A (en) * 2007-10-29 2008-09-03 丹尼斯克(中国)有限公司 Stabilizer combination for dairy food and uses thereof
CN102283294A (en) * 2011-06-22 2011-12-21 北京三元食品股份有限公司 Sports beverage containing whey protein and preparation method thereof
CN107998057A (en) * 2017-12-06 2018-05-08 芜湖市欣然食品有限公司 A kind of preparation method of antibacterial moisturizing lactalbumin polysaccharide lipstick
CN108366580A (en) * 2015-12-18 2018-08-03 雀巢产品技术援助有限公司 Including lactalbumin and it is selected from (i) carbohydrate, the high protein composition of the heat sterilization of at least one component of (ii) phosphate and (iii) citrate

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08242771A (en) * 1995-03-10 1996-09-24 Snow Brand Milk Prod Co Ltd Japanese style confection and its production
CN1671300A (en) * 2002-07-29 2005-09-21 大塚制药株式会社 Gel-type drink composition
CN101253895A (en) * 2007-10-29 2008-09-03 丹尼斯克(中国)有限公司 Stabilizer combination for dairy food and uses thereof
CN102283294A (en) * 2011-06-22 2011-12-21 北京三元食品股份有限公司 Sports beverage containing whey protein and preparation method thereof
CN108366580A (en) * 2015-12-18 2018-08-03 雀巢产品技术援助有限公司 Including lactalbumin and it is selected from (i) carbohydrate, the high protein composition of the heat sterilization of at least one component of (ii) phosphate and (iii) citrate
CN107998057A (en) * 2017-12-06 2018-05-08 芜湖市欣然食品有限公司 A kind of preparation method of antibacterial moisturizing lactalbumin polysaccharide lipstick

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
南海函等: "乳清蛋白凝胶及其影响因素的机理研究", 《广西轻工业》 *

Similar Documents

Publication Publication Date Title
EP4223137A1 (en) Whey protein composition, and preparation method therefor and use thereof
US20070059399A1 (en) Production of protein composition from a dairy stream and its use as an ingredient in the manufacture of a cheese
JP3137268B2 (en) Dairy products containing high cholesterol
Mahami et al. Preliminary study on the influence of moringa seed extracts supplementation on the yield and quality of cottage cheese
CN106857850A (en) A kind of blackberry, blueberry high calcium liquid milk and preparation method thereof
CN111961226A (en) Process for preparing whey protein gels
JP2022509319A (en) A food composition containing a mixture of legumes and casein
TWI700042B (en) Process for preparing whey protein gel
KR101964615B1 (en) Anti-Oxidant Yanggeng Containing Aged Chestnut Inner shell
CA2487436C (en) Production process for lactulose-containing powder composition, lactulose-containing powder composition produced by same, and feed additive
CN1315406C (en) Preserving technology and preserving and solidying agent for bean products
CN102138585A (en) Resveratrol-added dairy product and preparation method thereof
JP3029057B2 (en) Milk composition for food allergy
JP2974064B2 (en) Powdered cheese and its manufacturing method
JP2008056632A (en) Tablet comprising dairy processed product and method for producing the same
CN109700035A (en) A kind of high-intensitive and high retentiveness double protein plural gel preparation process
KR940000330B1 (en) Process for making a beverage from the fruit of chinese quince
KR101388679B1 (en) Gummy food composition containing royal jelly and method for preparing the same
RU2677923C1 (en) Method of manufacture of dietary marmalade
KR101427824B1 (en) Manufacturing method for ricotta cheese containing vitamin b6
RU2142237C1 (en) Method for production of protein-containing jelly foods
CN104605436B (en) Preparation method of lycium ruthenicum-apricot kernel-pumpkin compound beverage
RU2553504C1 (en) Curd product manufacture method
CN108902329A (en) A kind of preparation method and Milk Coagulation with Ginger Juice health beverages of Milk Coagulation with Ginger Juice health beverages
KR20100087872A (en) Preparation method for bean curd containing spirulina

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
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20201120