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Preparation method of corn bran dietary fiber fat substitute

A fat substitute and dietary fiber technology, applied in food preparation, food science, application, etc., can solve the problems of wasting resources and achieve the effects of no pollution, easy control of reaction, and cheap and easy-to-obtain raw materials

Active Publication Date: 2013-03-06
山科工大山东科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, corn husks are mainly used as feed or discarded, which is a great waste of resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A preparation method of corn bran dietary fiber fat substitute, the preparation method steps are as follows:

[0048] (1) Sieve extraction: crush 50g of corn husks, pass through a 65-mesh sieve to obtain corn husk powder, stir and extract the corn husk powder with 300mL of ethanol with a volume percentage of 95% at 40°C for 1 hour, filter with suction, and use Take the filter residue after washing with 300mL distilled water;

[0049] (2) Enzymolysis: Add 300mL of 0.1wt% Na to the filter residue 2 CO 3 Solution, stirring; add 0.25g alkaline protease, at 50°C, pH 9.0, stir for 60min; add 0.5mL high temperature resistant α-amylase, at 90°C, pH 6.0, stir for 30min; suction filtration, Wash with 300mL of distilled water, and dry the filter residue at 70°C to obtain 35g of corn bran dietary fiber;

[0050] (3) Alkalinization: add 300mL of pure isopropanol solution and 250mL of 15wt% NaOH solution to the corn bran dietary fiber to react for 1 hour, and control the temperatu...

Embodiment 2

[0055] A preparation method of corn bran dietary fiber fat substitute, the preparation method steps are as follows:

[0056] (1) Sieve extraction: crush 50g of corn husks, pass through a 65-mesh sieve to obtain corn husk powder, stir and extract the corn husk powder with 300mL of ethanol with a volume percentage of 90% at 40°C for 1 hour, filter with suction, and use Take the filter residue after washing with 300mL distilled water;

[0057] (2) Enzymolysis: Add 300mL of 0.1wt% Na to the filter residue 2 CO 3 Solution, stirring; add 0.25g alkaline protease, at 50°C, pH 9.0, stir for 60min; add 0.5mL high temperature resistant α-amylase, at 90°C, pH 6.0, stir for 30min; suction filtration, Wash with 300mL of distilled water, and dry the filter residue at 70°C to obtain 35g of corn bran dietary fiber;

[0058] (3) Alkalinization: add 300mL of isopropanol pure solution and 175mL of 20wt% NaOH solution to the corn bran dietary fiber to react for 1 hour, and control the temperatu...

Embodiment 3

[0063] A preparation method of corn bran dietary fiber fat substitute, the preparation method steps are as follows:

[0064] (1) Sieve extraction: crush 70g of corn husks, pass through a 65-mesh sieve to obtain corn husk powder, stir and extract the corn husk powder with 300mL of ethanol with a volume percentage of 95% at 40°C for 1 hour, suction filter, and use Take the filter residue after washing with 300mL distilled water;

[0065] (2) Enzymolysis: Add 300mL of 0.1wt% Na to the filter residue 2 CO 3 Solution, stirring; add 0.4g alkaline protease, at 50°C, pH 9.0, stir for 60min; add 0.8mL high temperature resistant α-amylase, at 90°C, pH 6.0, stir for 30min; suction filtration, Wash with 300mL of distilled water, and dry the filter residue at 70°C to obtain 48g of corn bran dietary fiber;

[0066] (3) Alkalinization: add 300mL isopropanol pure solution and 285mL 17wt% NaOH solution to the corn bran dietary fiber to react for 1 hour, and control the temperature at 30°C t...

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Abstract

The invention relates to a preparation method of a corn bran dietary fiber fat substitute. The preparation method comprises the following steps: (1), crushing, sieving, extracting and leaching the corn bran; (2), carrying out enzymolysis to on filter residue; (3), carrying out alkalization after the enzymolysis; (4), etherifying after the alkalization to obtain a crude product of the corn bran dietary fiber fat substitute; (5), dissolving the crude product and regulating the pH of the mixture to 7.0-9.0, leaching the mixture, and concentrating the filtrate; and (6), adding alcohol to the concentrated solution to separate out precipitate; and leaching the concentrated solution, drying or vacuum freezing and drying the filter residue at 70-80 DEG C to obtain the corn bran dietary fiber fat substitute. The corn bran dietary fiber fat substitute prepared from by the preparation method disclosed by the invention has functional characteristics of fat in the food and enhances enhanced water holding capacity, and improves improved food texture and various sensory characteristics; and moreover, the material is cheap and easy to obtain, the preparation method is scientific and reasonable, the operation is simple and easy to perform, and no pollution is caused to the environment.

Description

Technical field: [0001] The invention relates to a method for preparing a corn bran dietary fiber fat substitute, belonging to the technical field of fat substitute preparation. Background technique: [0002] With the improvement of living standards, people are becoming more and more sensitive to the fat content in food. Excessive intake of fat will cause a series of diseases such as cerebral thrombosis, high blood pressure, and youth obesity, which will seriously affect people's health. However, the rough taste of fat-free products cannot meet people's requirements, so fat substitutes have emerged as the times require. Excellent fat substitutes can keep people's total calorie intake at a low level without hunger feeling under the premise of maintaining the good taste of food after eating, so that no excess calories in the body will be converted into fat. [0003] Fat substitutes currently on the market are mainly divided into four categories: fat-based, protein-based, carb...

Claims

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Application Information

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IPC IPC(8): A23L1/10A23L1/308A23L7/10
Inventor 崔波荆晓飞檀琮萍
Owner 山科工大山东科技有限公司
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