Method of using reflux extraction technology for producing high dietary fiber foods
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A high dietary fiber, reflux extraction technology, applied in bakery food, food preparation, food extraction and other directions, can solve the problems of high production cost, long production process time, poor solubility of dietary fiber, etc., to improve the extraction rate and purity. effect of color
Inactive Publication Date: 2014-12-03
SHANGHAI QINGMEI GREEN FOOD
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The production process takes a long time and the production cost is high.
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[0024] Example 1
[0025] The first step: acidification treatment. Soak the bean dregs in clean water and adjust the pH to 3.5 with 0.5 mol / L hydrochloric acid solution.
[0026] Step 2: Neutralization. Adjust the pH value of the mixed solution to neutral with 0.5mol / L NaOH solution
[0027] The third step: high-pressure cooking: pressure pretreatment with an autoclave at 120°C for 1 hour to change the fiber structure, promote the hydrolysis of its glycosidic bonds, and increase the ratio of soluble substances. Inactivate lipoxygenase, reduce beany taste, and inactivate anti-nutritional factors
[0028] The fourth step: washing and dissolving: add the cooked bean dregs to a certain 2% sodium carbonate solution, and reflux and extract at 80°C.
[0029] The fifth step: evaporation and drying: reflux and extract for 30 minutes and then filter, and the filtrate is precipitated with 3 times the volume of ethanol as a precipitation agent. The precipitated reagent is dried at 90°C to obtai...
Example Embodiment
[0031] Example 2:
[0032] The first step: acidification treatment. Soak the bean dregs in clean water and adjust the pH to 4.5 with a 1mol / L hydrochloric acid solution.
[0033] Step 2: Neutralization. Adjust the pH value of the mixed solution to neutral with 1mol / L NaOH solution
[0034] The third step: high-pressure cooking: pretreatment with pressure at 120°C for 1.5h in an autoclave to change the fiber structure, promote the hydrolysis of its glycosidic bonds, and increase the ratio of soluble substances. Inactivate lipoxygenase, reduce beany taste, and inactivate anti-nutritional factors.
[0035] The fourth step: washing and dissolving: add a certain 2-4% sodium carbonate solution to the cooked bean dregs, and reflux and extract at 90°C.
[0036] Step 5: Evaporation and drying: 30 minutes after reflux extraction, filter, and precipitate the filtrate with 4 times the volume of ethanol as a precipitant. The precipitated reagent is dried at 90°C to obtain soluble dietary fiber. ...
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Abstract
The present invention provides a method of using reflux extraction technology for producing high dietary fiber foods. The method comprises the following steps: acidizing: soaking bean dregs in clean water and adjusting the pH value to 3-5 with a hydrochloric acid solution of 0.5-1.0 mol/L; neutralizing: adjusting the pH value of the mixed solution to neutral with a NaOH solution of 0.5-1.0 mol/L; boiling under a high pressure: boiling the mixed solution under a high pressure at a temperature of 120 DEG C using a high-pressure sterilizing boiler for 1-1.5 hours; washing and dissolving: adding a sodium carbonate solution of 2-4% concentration into the boiled bean dregs and carrying out reflux extraction at a temperature of 80-90 DEG C; and drying by evaporation: 30 minutes after the reflux extraction, carrying out filtering, conducting precipitating on the filtrate with 3-4 times volume of ethanol as a precipitating agent, and drying the precipitated reagent at a temperature of 90 DEG C to obtain the soluble dietary fiber. According to the present invention, the dried soluble dietary fiber is utilized and added to the relevant ingredients to produce the functional dietary fiber foods. According to the present invention, the functional dietary fiber foods with high dietary fiber content, yellowish white appearance and good taste can be produced.
Description
technical field [0001] The invention relates to a method for extracting dietary fiber in bean dregs by using a reflux extraction technology and making dietary fiber food, and belongs to the field of functional food production. Background technique [0002] Dietary fiber comes primarily from the cell walls of plants, which contain Cellulose , Hemicellulose , resin, pectin and lignin wait. , is a kind of food nutrient that is not easily digested by the human body. However, the intake of dietary fiber is very important to human health. It can clean the digestive wall and enhance digestive function. It can also dilute and accelerate the removal of carcinogens and toxic substances in food , protect the fragile digestive tract and prevent colon cancer. Fiber also slows down digestion and excretes cholesterol the fastest, so blood sugar and cholesterol in the blood can be controlled at an optimal level. Dietary fiber food is currently recognized as a functional food that c...
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