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Preparation method of jujube residue insoluble dietary fiber powder

A technology of soluble dietary fiber and jujube dregs, which is applied in the field of food engineering, can solve the problems of easily polluting the environment, water absorption, expansion, etc., and achieve the effects of simple process, green production process and high product quality

Active Publication Date: 2012-12-12
HAOXIANGNI HEALTH FOOD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of acid-base reagents in production is easy to pollute the environment, and the properties of the product such as water absorption and expansion still need to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The preparation method of the jujube dregs insoluble dietary fiber powder of the present embodiment adopts the following steps:

[0028] (1) Add jujube dregs to water 5 times the weight of jujube dregs and mix evenly to make jujube dregs slurry;

[0029] (2) Roughly grind the uniformly mixed jujube dregs slurry once through a grinding wheel mill;

[0030] (3) The jujube dregs slurry obtained by rough grinding once with the grinding wheel mill is finely ground once with the colloid mill, and the gap between the colloid mill is controlled at 50 μm;

[0031] (4) Add 100g cellulase, 100g protease and 100g amylase per ton of jujube dregs slurry, and enzymatically hydrolyze it at 50°C for 2 hours;

[0032] (5) The jujube dregs slurry after enzymatic hydrolysis treatment was subjected to solid-liquid phase centrifugation at a speed of 4000r / min, and the centrifugation time was 15min to obtain insoluble solids;

[0033] (6) Decolorization: Add 5% (m / m) H to the centrifuged in...

Embodiment 2

[0040] The preparation method of the jujube dregs insoluble dietary fiber powder of the present embodiment adopts the following steps:

[0041] (1) Add jujube dregs to water twice the weight of jujube dregs and mix evenly to make jujube dregs slurry;

[0042] (2) Roughly grind the uniformly mixed jujube dregs slurry once through a grinding wheel mill;

[0043] (3) The jujube dregs slurry obtained by rough grinding once by the grinding wheel mill is homogenized by a homogenizer, and the homogenization pressure is 15-35MPa;

[0044] (4) Add 80g of cellulase, 80g of protease and 80g of amylase per ton of jujube dregs slurry, and enzymatically hydrolyze at 40°C for 2.5 hours;

[0045] (5) The jujube dregs slurry after enzymatic hydrolysis treatment was subjected to solid-liquid phase centrifugation at a speed of 5000r / min, and the centrifugation time was 15min;

[0046] (6) Decolorization: Add 2% (m / m) H to the insoluble solids separated by centrifugation 2 o 2 , and heated in...

Embodiment 3

[0053] The preparation method of the jujube dregs insoluble dietary fiber powder of the present embodiment adopts the following steps:

[0054] (1) Add jujube dregs to water 3 times the weight of jujube dregs and mix evenly to make jujube dregs slurry;

[0055] (2) Roughly grind the uniformly mixed jujube dregs slurry once with a grinding wheel mill;

[0056] (3) The jujube dregs slurry obtained by rough grinding once with the grinding wheel mill is finely ground once with the colloid mill, and the gap between the colloid mill is controlled at 25 μm;

[0057](4) Add 120g cellulase, 120g protease and 120g amylase per ton of jujube dregs slurry, and enzymatically hydrolyze at 50°C for 1.5 hours;

[0058] (5) The jujube dregs slurry after enzymatic hydrolysis treatment was subjected to solid-liquid phase centrifugation at a speed of 6000r / min, and the centrifugation time was 15min;

[0059] (6) Decolorization: Add 2% (m / m) H to different solids separated by centrifugation 2 o ...

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Abstract

The invention discloses a preparation method of a jujube residue insoluble dietary fiber powder. The method comprises the following steps: 1) adding jujube residue into water of 2-5 times the weight of the jujube residue, mixing for pulping, grinding, and adding 80-120 g of cellulase, 80-120 g of protease and 80-120 g of amylase in per ton of the jujube residue slurry for enzymolysis; 2) centrifuging the jujube residue slurry treated with enzymolysis to obtain an insoluble solid, carrying out a bleaching treatment on the insoluble solid by adding hydrogen peroxide, centrifuging, compressing, filtering and drying; and 3) extruding and pulverizing the dried insoluble solid to obtain the jujube residue insoluble dietary fiber powder. The preparation method uses cellulase, protease and amylase to carry out compound enzymatic treatment, and effectively decomposes impurities; the enzymolysis conditions are mild, and cause no pollution to the environment; besides, the extrusion is employed to improve functions such as water absorption and expansion of the jujube dietary fiber.

Description

technical field [0001] The invention relates to a preparation method of jujube dregs insoluble dietary fiber powder, which belongs to the technical field of food engineering. Background technique [0002] Jujube (Zizyphus jujuba Mill) belongs to the Rhamnaceae jujube plant, which is widely planted in my country, and its output accounts for 95% of the world's total output. Jujube has high nutritional and medicinal health effects, and is a food with the same source of medicine and food. my country's jujube fruit is processed into jujube juice, jujube wine and canned food. During the processing of jujube juice, jujube dregs, which account for more than 80% of the raw materials, are discarded, which is wasteful and causes environmental pollution. Jujube dregs, a by-product of jujube juice processing, are rich in dietary fiber. Therefore, extracting dietary fiber from jujube dregs plays an important role in extending the industrial chain of jujube processing, improving the comp...

Claims

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Application Information

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IPC IPC(8): A23L1/212A23L1/29A23L19/00A23L33/00
Inventor 石勇石聚领纵伟
Owner HAOXIANGNI HEALTH FOOD CO LTD
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