Optimization of Ultrasonic-Assisted Alkaline Extraction of Soluble Dietary Fiber from Eucommia Seed Meal

doi:10.7506/spkx1002-6630-201322014

Abstract

Abstract:

Response surface methodology was applied to optimize the extraction process conditions of soluble dietary
fiber (SDF) from Eucommia seed meal. Three independent variables including material/liquid ratio, ultrasonication time and
temperature were chosen with respect to the dependent variable SDF yield for one-factor-at-a-time design. A mathematical
model was established by Box-Behnken experimental design and analyzed by response surface methodology. The results
showed that the optimal extraction conditions were determined as follows: alkali concentration 2.0 g/100 mL, material/liquid
ratio 1:23 (g/mL), ultrasonication time 23 min, and extraction temperature 43 ℃. Under the optimal extraction conditions,
the yield of SDF was 22.92%.

Key words: Eucommia seed meal, soluble dietary fiber, alkaline extraction, ultrasonic-assisted extraction, response surface methodology

CLC Number:

TS201.2

HUANG Qun，YANG Wan-gen，YU Ji，MA Cheng-jin，WU Li-ya，ZHONG Li-hong. Optimization of Ultrasonic-Assisted Alkaline Extraction of Soluble Dietary Fiber from Eucommia Seed Meal[J]. FOOD SCIENCE, 2013, 34(22): 70-74.

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