Method for extracting sweet potato dietary fibers
A sweet potato dietary fiber and extraction method technology, applied in the field of bioengineering, can solve the problems of loss of resistant starch, low product purity, high cost, etc., achieve the effect of solving processing problems, good functional indicators, and improving productivity
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[0038] The present invention will be further described below in conjunction with specific embodiment:
[0039] A method for extracting sweet potato dietary fiber, comprising: removing starch, enzymatic hydrolysis, centrifuging and extracting dietary fiber, said extracting dietary fiber includes extracting insoluble dietary fiber and extracting soluble dietary fiber;
[0040] Extraction of insoluble dietary fiber: Centrifuge the mixed solution after enzymolysis to obtain mutually separated precipitates and supernatants, soak the obtained precipitates in ethanol solution, and then undergo suction filtration to obtain solids and filtrates; the obtained solids Insoluble dietary fiber;
[0041] Extract soluble dietary fiber: The supernatant and filtrate obtained in the above process are evaporated most of the water in a water bath, and then add 95% ethanol solution for leaching. At this time, flocculent precipitates appear in the supernatant and filtrate. The supernatant and the f...
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