Preparation method of dioscorea opposita thunb slime polysaccharide and resistant starch

A technology of resistant starch and yam, which is applied in the field of agricultural product processing, can solve the problems of less continuous and integrated production reports and low yield of resistant starch, and achieve good dimensional stability, short processing time and high purity. Effect

Inactive Publication Date: 2018-03-09
GUANGXI NANNING SHENGQIAN TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Chinese patent 201710573545.5 provides a method for preparing cassava resistant starch. The steps are as follows: take cassava starch, heat-press, cool to room temperature, add heat-resistant α-amylase to react, then cool to room temperature for ultrasonic treatment, let it stand, and bake Drying, grinding, an

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0030] Example 1

[0031] Molecularly imprinted membrane preparation: using polypropylene membrane as the base membrane, 9 parts of molecularly imprinted template yam mucilage polysaccharide, 7 parts of functional monomer 4-vinylphenol, 3.5 parts of initiator benzoyl peroxide, 22 parts of crosslinking agent Sodium hexametaphosphate, 6 parts of porogen ethyl acetate are mixed to obtain a mixed solution, the polypropylene film is placed in the mixed solution, nitrogen gas is introduced and sealed, the water bath is shaken, and the oven is dried at 30°C. The volume ratio is 8:1.0 ethanol -Elution with acetic acid solvent to remove the template molecules to obtain a molecularly imprinted membrane.

[0032] Raw material pretreatment: take the fresh yam yam, wash, peel, color, and slice, crush and homogenize with a tissue masher, then put the homogenate into a high-voltage pulsed electric field for extraction for 4.5 minutes, the electric field intensity is 23V / cm, the pulse time is 9 ...

Example Embodiment

[0037] Example 2

[0038] Molecularly imprinted membrane preparation: Polypropylene membrane is used as the base membrane, 6 parts of molecularly imprinted template yam mucoid polysaccharide, 8 parts of functional monomer 4-vinylphenol, 4 parts of initiator benzoyl peroxide, 23 parts of crosslinking agent Sodium hexametaphosphate and 10 parts of porogen ethyl acetate are mixed to obtain a mixed solution. The polypropylene film is placed in the mixed solution, and then sealed with nitrogen. The water bath is shaken and dried in an oven at 40℃. The volume ratio is 5:1.0 ethanol. -Elution with acetic acid solvent to remove the template molecules to obtain a molecularly imprinted membrane.

[0039] Raw material pretreatment: take fresh yam yam, wash, peel, color, and slice, crush and homogenize with a tissue masher, then put the homogenate into a high-voltage pulse electric field for extraction for 4 minutes, the electric field strength is 20V / cm , The pulse time is 8μs, and the pulse...

Example Embodiment

[0044] Example 3

[0045] Molecularly imprinted membrane preparation: Polypropylene membrane is used as the base membrane, 8 parts of molecularly imprinted template yam mucilage polysaccharide, 10 parts of functional monomer 4-vinylphenol, 3 parts of initiator benzoyl peroxide, and 20 parts of crosslinking agent Sodium hexametaphosphate and 7 parts of porogen ethyl acetate are mixed to obtain a mixed solution. The polypropylene film is placed in the mixed solution, and then sealed with nitrogen. The water bath is shaken and dried in an oven at 38°C. The volume ratio is 9:1.0 ethanol. -Elution with acetic acid solvent to remove the template molecules to obtain a molecularly imprinted membrane.

[0046] Raw material pretreatment: take fresh yam, wash, peel, color protect, slice, crush and homogenize with a tissue masher, then put the homogenate into a high-voltage pulse electric field for extraction for 5 minutes, the electric field strength is 18V / cm , The pulse time is 7μs, and th...

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PUM

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Abstract

The invention belongs to the field of processing agricultural products, and particularly relates to a preparation method of dioscorea opposita thunb slime polysaccharide and resistant starch. The preparation method of dioscorea opposita thunb slime polysaccharide and resistant starch comprises the following steps: washing and peeling fresh dioscorea opposita thumb, protecting color, slicing, crushing, homogenizing, putting homogenate into a high-pressure pulsed electric field for extraction, adding water into the treated dioscorea opposita thumb homogenate and performing high-speed centrifugation, and centrifuging starch residues at the lower layer for three times; respectively collecting supernatant and lower-layer starch residues obtained through repeated centrifugation; filtering the centrifuged supernatant through a molecularly imprinted membrane and eluting with water, to obtain a dioscorea opposita thumb slime polysaccharide solution, concentrating and drying to obtain dioscoreaopposita thumb slime polysaccharide, adding water into the lower-layer starch residues and performing membrane filtration, preparing a starch emulsion after filtering, performing pressure-heating treatment in an autoclave and then adding pancreatic amylase and pullulanase for enzymolysis, performing enzyme denaturing and performing refrigeration and ageing, hot-air drying, pulverizing and screening to obtain the dioscorea opposita thumb resistant starch.

Description

technical field [0001] The invention belongs to the field of agricultural product processing, and specifically relates to a preparation method of yam mucus polysaccharide and resistant starch. Background technique [0002] Chinese yam is the root tuber of Dioscorea opposita plant in Dioscorea family, and it is a medicinal and edible plant. Chinese yam contains crude fiber, pectin, polysaccharide, amylase, mucus, glycoprotein, allantoin, saponin, yam, choline, fatty acid and other components, as well as trace amounts of iodine, calcium, iron and phosphorus that are indispensable to the human body. It has the functions of nourishing the spleen and nourishing the stomach, promoting body fluid and benefiting the lungs, stopping diarrhea and dampness. [0003] Yam polysaccharide is one of the important active ingredients of yam, which has the functions of lowering blood sugar, improving gastrointestinal function, regulating immune system, and anti-aging. At present, a large num...

Claims

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Application Information

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IPC IPC(8): C08B37/00C08B30/12
CPCC08B30/12C08B37/0003
Inventor 钟安祺
Owner GUANGXI NANNING SHENGQIAN TECH DEV CO LTD
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