Optimization of Enzymatic Extraction of Insoluble Dietary Fiber from Rapeseed Shells

doi:10.7506/spkx1002-6630-201308020

Abstract

Abstract: The enzymatic extraction of insoluble dietary fiber (IDF) from rapeseed shells was optimized by orthogonal array design based on IDF yield. The IDF yield from rapeseed shells was 81.24% after 60 min of amylase hydrolysis at 40 ℃ and an initial pH of 5.5 with an enzyme dosage of 0.7% and a solid-to-liquid ratio of 1:20, and 77.13% after 60 min of protease hydrolysis at 40 ℃ and an initial pH of 7.5 with an enzyme dosage of 0.7% and a solid-to-liquid ratio of 1:20. In this study, we have identified main process parameters that influence IDF extraction from rapeseed shells and established the optimum process conditions.

Key words: rapeseed shell, insoluble dietary fiber, enzymatic method, extraction

CLC Number:

TS214. 2

WANG Shun-min，ZHENG Rui. Optimization of Enzymatic Extraction of Insoluble Dietary Fiber from Rapeseed Shells[J]. FOOD SCIENCE, 2013, 34(8): 100-103.

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