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Extraction method for sweet potato dietary fiber

A sweet potato dietary fiber and extraction method technology, applied in food extraction, food shaping, food precipitation, etc., can solve the problems of high yield and purity of dietary fiber, low utilization rate of potato residue, etc.

Inactive Publication Date: 2014-03-19
威海市桢昊生物技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiency of low utilization rate of potato residues in the prior art, the present invention provides a method for extracting dietary fiber from sweet potatoes. The extraction method is not only reasonable in process, strong in operability, but also high in yield and purity of dietary fiber

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A method for extracting sweet potato dietary fiber, through the following process steps:

[0017] A, raw material selection select the sweet potato slag after extracting starch and weigh 100kg as raw material, for subsequent use;

[0018] B, raw material processing the sweet potato dregs that step (a) is selected adopts the clear water of 8 times of sweet potato dregs quality to soak 3.5h, adopts clean water to rinse again, then sends into tissue masher and adds the water of 4 times of sweet potato dregs quality and mashes into Slurry, sweet potato slag slurry;

[0019] c. Alkali treatment Add the sweet potato residue slurry obtained in step (b) to water with 9 times the quality of sweet potato residue, stir evenly, add a sodium hydroxide solution with a concentration of 12g / L, adjust the pH value to 13, and keep at room temperature for 1.5h , dissolve the protein and fat in the sweet potato dregs; after the alkali treatment is completed, the protein and fat are dissol...

Embodiment 2

[0025] A method for extracting sweet potato dietary fiber, through the following process steps:

[0026] A, raw material selection select the sweet potato slag after extracting the starch and weigh 200kg as raw material, for subsequent use;

[0027] b. Raw material processing The sweet potato dregs selected in step (a) are soaked in clear water with 10 times the quality of sweet potato dregs for 3 hours, rinsed with clean water, then sent to a tissue masher and mashed into a slurry by adding water with 3 times the quality of sweet potato dregs shape, to obtain sweet potato slag slurry;

[0028] c. Alkali treatment Add the sweet potato residue slurry obtained in step (b) to water with 10 times the quality of sweet potato residue, stir evenly, add a sodium hydroxide solution with a concentration of 15g / L, adjust the pH value to 14, and keep it for 1h at room temperature. Dissolving the protein and fat in the sweet potato dregs; after the alkali treatment, the protein and fat ar...

Embodiment 3

[0034] A method for extracting sweet potato dietary fiber, through the following process steps:

[0035] A, raw material selection select the sweet potato slag after extracting starch and weigh 100kg as raw material, for subsequent use;

[0036] b. Raw material processing The sweet potato dregs selected in step (a) are soaked in clear water with 5 times the quality of sweet potato dregs for 4 hours, then rinsed with clear water, then sent to a tissue masher and mashed into a slurry by adding water with 5 times the quality of sweet potato dregs shape, to obtain sweet potato slag slurry;

[0037] c. Alkali treatment Add the sweet potato residue slurry obtained in step (b) to water with 8 times the quality of sweet potato residue, stir evenly, add a sodium hydroxide solution with a concentration of 10g / L, adjust the pH value to 11, and keep it at room temperature for 2h. Dissolving the protein and fat in the sweet potato dregs; after the alkali treatment, the protein and fat are...

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Abstract

The invention relates to an extraction method for sweet potato dietary fiber. The method includes: selecting starch extracted sweet potato residue as the raw material, conducting soaking by clear water, adding water and smashing the material into a sweet potato residue slurry; adding a sodium hydroxide solution into the sweet potato residue slurry to dissolve out the protein and fat therein; performing filtration, adding a hydrogen peroxide solution into the sweet potato residue subjected to alkali treatment to remove sweet potato residue polyphenol; conducting filtration, then adding a hydrochloric acid solution into the sweet potato residue polyphenol removed sweet potato residue to dissolve out the starch in the sweet potato residue; performing filtration, then flushing the acid treated sweet potato residue by distilled water to neutral, thus obtaining a neutral sweet potato insoluble; and carrying out drying and crushing, thus obtaining sweet potato dietary fiber. The method provided by the invention has the advantages of reasonable process, strong operability, high dietary fiber yield and purity, and can be used for large scale industrialized production.

Description

technical field [0001] The invention relates to the preparation of nutritious food with added non-digestible dietary fiber and reduced nutritional value, especially a method for extracting sweet potato dietary fiber. Background technique [0002] We know that dietary fiber is a generally indigestible food nutrient, mainly from the cell wall of plants, including cellulose, hemicellulose, resin, pectin and lignin. Dietary fiber is indispensable for a healthy diet. Fiber plays an important role in maintaining a healthy digestive system, and can also prevent cardiovascular disease, cancer, diabetes and other diseases; it can clean the digestive wall and enhance digestive function, while diluting and Accelerates the removal of carcinogens and toxic substances in food, protects the fragile digestive tract and prevents colon cancer; it can slow down the digestion speed and excrete cholesterol the fastest, so that the blood sugar and cholesterol in the blood can be controlled at the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L1/308A23L33/22
CPCA23L33/22A23P10/40A23V2002/00A23V2250/5116A23V2250/1614A23V2250/152A23V2250/15A23V2300/10A23V2300/14A23V2300/40
Inventor 倪海平唐茂林杨众唐严芳
Owner 威海市桢昊生物技术有限公司
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