A kind of preparation method of bamboo leaf soluble dietary fiber

A dietary fiber and soluble technology, applied in food science, biofuel, fermentation, etc., can solve the problems of high energy consumption, environmental pollution by chemical methods, low yield, etc., to prevent and treat gallstones, reduce human serum cholesterol, and enrich soluble meals fiber effect

Active Publication Date: 2020-11-03
JIANGSU POLYTECHNIC COLLEGE OF AGRI & FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods consume large amounts of energy and have low yields, and chemical methods also cause pollution to the environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: the bamboo leaves after picking are washed with running water, dried, ground and crossed a 60-mesh sieve for subsequent use. Weigh 50g of bamboo leaf powder with hot water at a material-to-liquid ratio of 1:20g / ml, extract in a water bath at 80°C for 30 minutes, and extract twice to remove water-soluble substances such as soluble sugars and amino acids; filter, and filter residues in an oven Dry at 70°C for later use. Weigh 10 g of filter residue, dissolve in 200 mL of citrate buffer solution with pH 6.0, add 0.2 g of α-amylase, and perform enzymatic hydrolysis at 40° C. for 4 hours. Adjust the pH of the enzymolysis solution to 4.2, add 0.003g CaCl 2 and 0.6g cellulase at 45°C for 1 hour. Adjust the pH of the enzymolysis solution to 6.6, add 0.6 g of papain and perform enzymolysis at 55° C. for 1 hour. Boil the enzymolysis solution for 10 minutes to inactivate the enzyme, centrifuge, and separate the supernatant from the precipitate. Wash the pellet th...

Embodiment 2

[0027] Embodiment 2: the bamboo leaves after plucking are washed with running water, dried, and ground through an 80-mesh sieve for subsequent use. Weigh 200g of bamboo leaf powder with hot water at a material-to-liquid ratio of 1:15g / ml, leaching in a 90°C water bath for 60 minutes, and leaching 3 times to remove soluble sugars, amino acids and other water-soluble substances; filter, and filter residues in an oven Dry at 90°C for later use. Weigh 100 g of filter residue, dissolve in 400 mL of citrate buffer solution with pH 6.8, add 6 g of α-amylase, and perform enzymatic hydrolysis at 50° C. for 6 hours. Adjust the pH of the enzymolysis solution to 5.0, add 0.1g CaCl 2 and 10 g of cellulase at 55° C. for 3 hours. Adjust the pH of the enzymolysis solution to 7.0, add 12 g of papain and perform enzymolysis at 60° C. for 3 hours. Boil the enzymolysis solution for 20 minutes to inactivate the enzyme, centrifuge, and separate the supernatant from the precipitate. Wash the pel...

Embodiment 3

[0028] Embodiment 3: the bamboo leaves after plucking are washed with running water, dried, and ground through a 60-mesh sieve for subsequent use. Weigh 100g of bamboo leaf powder with hot water at a material-to-liquid ratio of 1:18g / ml, extract in a water bath at 85°C for 45 minutes, and extract 3 times to remove water-soluble substances such as soluble sugars and amino acids; filter, and filter residues in an oven Dry at 80°C for later use. Weigh 30 g of filter residue, dissolve in 200 mL of citrate buffer solution with pH 6.0, add 1.2 g of α-amylase, and perform enzymatic hydrolysis at 45°C for 5 hours. Adjust the pH of the enzymolysis solution to 4.6, add 0.0192g CaCl 2 and 2.4g cellulase at 50°C for 2 hours. Adjust the pH of the enzymolysis solution to 6.8, add 2.7 g of papain and perform enzymolysis at 58° C. for 2 hours. Boil the enzymolysis solution for 15 minutes to inactivate the enzyme, centrifuge, and separate the supernatant from the precipitate. Wash the pell...

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PUM

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Abstract

The invention discloses a preparation method of soluble dietary fiber of bamboo leaves. The preparation method comprises the steps as follows: obtained bamboo leaf powder and water are subjected to extraction, filtration and enzymolysis in the solid-liquid ratio of 1:20-1:15 g / ml, the obtained enzymatic hydrolysate is boiled and centrifuged, supernatant and precipitates are separated, drying and weighing are conducted, and the soluble dietary fiber is obtained. The problems of low extraction rate of the soluble dietary fiber of bamboo leaves and complex process are solved, and the preparationmethod for extracting the soluble dietary fiber of bamboo leaves efficiently is obtained.

Description

technical field [0001] The invention relates to a soluble dietary fiber, in particular to a preparation method of bamboo leaf dietary fiber. Background technique [0002] Dietary fiber refers to the sum of edible plant cells, lignin, polysaccharides and related substances that cannot be digested and absorbed by the human digestive system. From the perspective of specific chemical components, dietary fiber includes cellulose, hemicellulose, pectin, glucan sugar, lignin, etc. Dietary fiber is essential to a healthy diet. It maintains a healthy digestive system. Adequate intake of dietary fiber can also prevent diabetes, cardiovascular disease, cancer and other diseases. Dietary fiber can be divided into two categories, soluble dietary fiber (SDF) and insoluble dietary fiber (IDF). SDF is soluble in water, derived from pectin, alginate, konjac, etc., and has the effect of lowering blood fat and blood sugar. [0003] Bamboo leaves have a long history of edible and medicinal us...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): C12P7/10A23L33/21
CPCY02E50/10
Inventor李树炎唐迪韩艳丽
OwnerJIANGSU POLYTECHNIC COLLEGE OF AGRI & FORESTRY