Modified soybean fibers and high-performance composite gel prepared by synergy of modified soybean fibers of gellan gum

A technology of soybean fiber and composite gel, which is applied in the direction of fiber chemical characteristics, function of food ingredients, polysaccharide/gum-containing food ingredients, etc., can solve the problem that gellan gum has no significant influence on gel ability and gel strength, and ignores soybean Problems such as fiber hydrophilicity and low conversion rate of soluble fiber, to achieve low cost, high hardness and good elasticity

Active Publication Date: 2019-08-06
SOUTH CHINA UNIV OF TECH +1
View PDF1 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the development of soybean fiber mainly focuses on converting insoluble fiber into soluble fiber through ultrafine pulverization, high-pressure homogenization, biological fermentation and other methods, and then directly adding it to beverages and baked foods to improve the sensory and rheological properties of the product. The conversion rate of soluble fiber in the process is low, only about 20%, and its application is very single, with low added value
However, less attention has been paid to the insoluble fiber itself, focusing on the extraction of insoluble fiber by high-energy media grinding, high-pressure homogenization, and chemical solvents, and exploring the effects of the above methods on the properties of insoluble fiber, but there are three problems in these studies: (1) The extraction method has high requirements on equipment, complex operation, or repeated use of chemical reagents such as acids, alkalis, and chelating agents during extraction, which increases the difficulty of post-processing; (2) The functional properties of soybean fiber are not targeted during the extraction process so that Direct application only improves certain functional properties such as water holding capacity / oil holding capacity / swelling power, etc.; (3) The development is not enough, ignoring the hydrophilic characteristics of soybean fibers, which will help the preparation of soybean fibers. glue
However, gellan gum is expensive. In actual production, the amount of gellan gum is reduced by compounding xanthan gum, guar gum or carboxymethyl cellulose to meet people's food taste and texture requirements.
However, the amount of compound colloid used in the above compounding methods is relatively large, usually more than 1%, and mainly improves the texture properties such as viscosity and elasticity of the gellan gum system, while improving the gelling ability and gelling properties of the gellan gum system. The glue strength is not significantly affected, and its application is limited in high-strength gel foods such as sausages

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Modified soybean fibers and high-performance composite gel prepared by synergy of modified soybean fibers of gellan gum
  • Modified soybean fibers and high-performance composite gel prepared by synergy of modified soybean fibers of gellan gum
  • Modified soybean fibers and high-performance composite gel prepared by synergy of modified soybean fibers of gellan gum

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The dried bean dregs are crushed and passed through an 80-mesh sieve to obtain bean dregs powder. Prepare an aqueous dispersion of bean dregs at a material-to-liquid ratio of 1:20 g / ml, adjust the pH of the aqueous dispersion to 10.0 with 2 mol / L NaOH solution, and then put it into an autoclave for cooking at 105°C for 60 minutes. The pH was then adjusted to 10.0, followed by stirring at 40 °C, 1000 rpm for 60 min. After cooling down to room temperature, 4500g high-speed centrifugation for 20min, take the precipitate, redissolve the precipitate in pure water so that the ratio of solid to liquid is 1:20g / ml, adjust the pH of the aqueous dispersion to neutral with 2mol / L HCl solution. Then the dispersion was centrifuged at a high speed of 7500 g for 20 min to collect the precipitate. The modified soybean fiber is obtained after the precipitation is spray-dried.

Embodiment 2

[0031] The dried bean dregs are crushed and passed through a 100-mesh sieve to obtain bean dregs powder. Prepare an aqueous dispersion of bean dregs at a material-to-liquid ratio of 1:30 g / ml, adjust the pH of the aqueous dispersion to 11.0 with 2 mol / L NaOH solution, and then put it in an autoclave for 30 minutes at 110°C. Then the pH was adjusted to 11.0, followed by stirring at a constant temperature of 50° C. at a rate of 800 rpm for 90 min. After cooling down to room temperature, 3000g high-speed centrifugation for 25min, take the precipitate, redissolve the precipitate in pure water so that the ratio of solid to liquid is 1:30g / ml, adjust the pH of the aqueous dispersion to neutral with 2mol / L HCl solution. Then the dispersion was centrifuged at 6000 g for 25 min at a high speed, and the precipitate was collected. The modified soybean fiber is obtained after the precipitation is spray-dried.

Embodiment 3

[0033] Dried bean dregs are crushed and passed through a 120-mesh sieve to obtain bean dregs powder. Prepare an aqueous dispersion of bean dregs at a material-to-liquid ratio of 1:40 g / ml, adjust the pH of the aqueous dispersion to 12.0 with 2 mol / L NaOH solution, and then put it in an autoclave for 90 minutes at 120°C. The pH was then adjusted to 12.0, followed by stirring at 60 °C, 600 rpm for 30 min. After cooling down to room temperature, 1000g high-speed centrifugation for 30min, take the precipitate, redissolve the precipitate in pure water so that the ratio of solid to liquid is 1:40g / ml, adjust the pH of the aqueous dispersion to neutral with 2mol / L HCl solution. Then the dispersion was centrifuged at a high speed of 7000 g for 30 min to collect the precipitate. The modified soybean fiber is obtained after the precipitation is spray-dried.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention belongs to the technical field of food processing, and discloses modified soybean fibers and a high-performance composite gel prepared by synergy of the modified soybean fibers and gellan gum. The modified soybean fibers are prepared by the steps: crushing and sieving dried soybean dregs, then mixing with water, and carrying out steam-cooking treatment on the obtained mixing system under conditions of the pH value of 10-12 and the temperature of 105-120 DEG C; then carrying out stirring treatment under conditions of the pH value of 10-12 and the temperature of 40-60 DEG C; centrifuging the obtained dispersed liquid, taking a precipitate, redissolving the precipitate in water, adjusting the pH value to neutral, and centrifuging; and spray-drying the obtained precipitate, to obtain the modified soybean fibers. The high-performance composite gel is prepared by the steps: adding the modified soybean fibers and gellan gum into water, shearing, stirring and mixing evenly, and thus obtaining the high-performance composite gel. The modified soybean fibers and the gellan gum form the high-performance composite gel through a synergistic effect, and all the gel strength, hardness, elasticity and water holding capacity of the composite gel are significantly improved.

Description

technical field [0001] The invention belongs to the technical field of food processing, and in particular relates to a high-performance composite gel prepared by modified soybean fiber and gellan gum. Background technique [0002] In the process of producing soybean oil, soybean protein isolate, tofu and other products, soybeans will produce by-products—okara (accounting for 15-20% of the total amount of soybeans). Okara has a rough taste and is easy to spoil. It is usually used as animal feed or agricultural waste, and it will cause environmental pollution due to improper treatment. Therefore, how to further develop and utilize bean dregs has become an urgent problem for scientific researchers to solve. [0003] Okara contains about 60% insoluble fiber and 15% protein and is a rich source of soybean fiber. At present, the development of soybean fiber mainly focuses on converting insoluble fiber into soluble fiber through ultrafine pulverization, high-pressure homogenizati...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): A23L29/269A23L29/238A23L33/22D01F4/00
CPCA23L29/272A23L29/238A23L33/22D01F4/00A23V2002/00A23V2200/32A23V2200/3262A23V2200/328A23V2250/5054A23V2250/51Y02P60/87
Inventor 赵强忠陈碧芬赵谋明林恋竹
Owner SOUTH CHINA UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap