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Method for extracting peanut dietary fibers through steam explosion modification and enzymatic hydrolysis coupling

A dietary fiber and modification technology, which is applied in the field of combining steam explosion modification and enzymatic hydrolysis to extract peanut dietary fiber, can solve the problems of unfavorable industrial production, lack of effective combination, low product activity, etc. The effect of increasing oil force and swelling force and improving the extraction rate

Pending Publication Date: 2017-12-22
唐山润泽粮油食品有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods are all single and independent, lack of effective combination, resulting in low extraction rate, low product activity, or too complicated process, which is not conducive to industrial production
[0005] There are few domestic reports on the simultaneous extraction of water-soluble dietary fiber and insoluble dietary fiber from skin dregs

Method used

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  • Method for extracting peanut dietary fibers through steam explosion modification and enzymatic hydrolysis coupling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Wash the peanut skins, blanching them with hot water at 85°C for 2 minutes, drain the blanched peanut skins and put them in a 60°C electric constant temperature blast drying oven to dry for 24 hours to make the water content 8%, crush To 60 mesh, obtain the pretreated peanut shell dregs powder;

[0037] (2) According to the ratio of powder and 0.5% (v / v) sulfuric acid 1g:2mL, add sulfuric acid to soak for 3min, the soaking temperature is 70°C, filter out the acidolysis solution, the humidity of the obtained peanut skin dregs is 50%, and then soak it under a pressure of 2.0 MPa, pressure holding time 10min, steam explosion at a temperature of 120°C to slurry the material and obtain the modified material;

[0038] (3) According to the ratio of modified material and water 1g:3mL, add distilled water to disperse to obtain a dispersion, adjust its pH value to 6.5 with a concentration of 0.5mol / L NaOH solution, and then add high-temperature-resistant α-starch with a mass ...

Embodiment 2

[0046] (1) Wash the peanut skins, blanching them with hot water at 95°C for 3 minutes, drain the blanched peanut skins and put them in a 70°C electric constant temperature blast drying oven to dry for 36 hours to make the water content 6%, crush them To 70 orders, obtain the pretreated peanut shell dregs powder;

[0047] (2) According to the ratio of powder and 1.0% (v / v) sulfuric acid 1g: 3mL, add sulfuric acid to soak for 5min, the soaking temperature is 80°C, filter out the acidolysis solution, the humidity of the obtained peanut skin dregs is 60%, and then soak under a pressure of 3.0 MPa, pressure holding time 15min, and steam explosion at 130°C to slurry the material and obtain the modified material;

[0048] (3) According to the ratio of modified material and water 1g:4mL, add distilled water to disperse to obtain a dispersion, adjust its pH value to 7.0 with a concentration of 0.5mol / L NaOH solution, and then add high-temperature-resistant α-starch with a mass of 0.20%...

Embodiment 3

[0056] (1) Wash the peanut skins, scald them with hot water at 100°C for 1 min, drain the blanched peanut skins and put them in an 80°C electric constant temperature blast drying oven to dry for 24 hours to make the water content 5%, crush them To 80 mesh, obtain the pretreated peanut shell dregs powder;

[0057] (2) According to the ratio of powder and 0.9% (v / v) sulfuric acid 1g: 4mL, add sulfuric acid to soak for 5min, the soaking temperature is 75°C, filter out the acidolysis solution, the humidity of the obtained peanut skin dregs is 60%, and then soak it under a pressure of 2.0 MPa, pressure holding time 20min, steam explosion at a temperature of 140°C to slurry the material and obtain the modified material;

[0058] (3) According to the ratio of modified material and water 1g:5mL, add distilled water to disperse to obtain a dispersion, adjust its pH value to 7.5 with a concentration of 0.5mol / L NaOH solution, and then add high-temperature-resistant α-starch with a mass ...

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Abstract

The invention discloses a method for extracting peanut dietary fibers through steam explosion modification and enzymatic hydrolysis coupling and belongs to the field of agricultural byproduct deep processing. The method comprises the following steps of taking peanut skin dregs as a raw material, performing steps of blanching, drying, crushing, soaking with dilute acid, steam explosion modification, starch and protein removal, complex enzymatic hydrolysis and the like, and treating a filtrate and precipitates to obtain water-soluble dietary fibers and insoluble dietary fibers respectively. For the method, by combining the extraction process with the modification process, the extraction rate of the water-soluble dietary fibers is increased, the composition and the structure of the dietary fibers are changed, more binding sites are exposed, and the adsorption performance and the dispersion performance of dietary fibers are improved; the water retention ability, the oil retention ability and the expansive force of the insoluble dietary fibers are improved, the adsorption ability of the water-soluble dietary fibers is strengthened, and thus the functionality of the peanut dietary fibers is strengthened; and by taking the skin dregs, which are a processing byproduct of peanuts, as the raw material, fine and deep processing of agricultural byproducts is realized, and a new way is provided for comprehensive utilization of the peanut agricultural byproducts.

Description

technical field [0001] The invention belongs to the field of deep processing of agricultural and sideline products, and in particular relates to a method for extracting peanut dietary fiber by coupling steam explosion modification and enzymatic hydrolysis. Background technique [0002] Dietary fiber (DF) refers to the general term for non-starch polysaccharides and lignin-like high-molecular carbohydrates that are not digested and absorbed by the stomach and small intestine. Although dietary fiber cannot provide any nutrition for the human body, it has important physiological functions for the human body - dietary fiber can prevent cardiovascular disease, obesity, diabetes, high blood pressure, improve the function of intestinal flora, reduce the occurrence of gastrointestinal cancer, eliminate Physiological effects such as exogenous harmful substances, anti-oxidation, and scavenging free radicals are called "the seventh type of nutrients" after carbohydrates, proteins, fats...

Claims

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Application Information

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IPC IPC(8): A23L33/22A23L25/00
CPCA23L25/30A23L25/40A23L33/22
Inventor 王磊刘志军孟哲黄月单平阳石可歆
Owner 唐山润泽粮油食品有限公司
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