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超声预处理-柠檬酸辅助亚临界水提取麦麸水溶性膳食纤维工艺优化
引用本文:陈婷婷,武利霞,肖高升,段玉清,张海晖,闫景坤.超声预处理-柠檬酸辅助亚临界水提取麦麸水溶性膳食纤维工艺优化[J].食品工业科技,2021,42(9):201-206.
作者姓名:陈婷婷  武利霞  肖高升  段玉清  张海晖  闫景坤
作者单位:1.江苏大学食品与生物工程学院,江苏镇江 2120132.宿迁市汇味食品有限公司,江苏宿迁 223900
基金项目:江苏省现代农业重点研发面上项目(BE2017362)。
摘    要:采用超声预处理-柠檬酸辅助亚临界水提法从小麦麸皮(以下简称“麦麸”)中提取水溶性膳食纤维。通过单因素实验考察超声预处理功率、柠檬酸/麦麸液固比、亚临界水提取温度和时间对麦麸水溶性膳食纤维得率的影响,在此基础上,采用响应面优化法,对提取工艺参数进行优化。结果表明,最佳提取条件为:超声预处理功率195 W,柠檬酸/麦麸液固比39:1 mL/g,亚临界水提取温度和时间分别为179 ℃和30 min。此时,麦麸水溶性膳食纤维的得率为41.00% ± 0.29%。因此,该方法能够提高麦麸水溶性膳食纤维的得率,且具有提取时间短、绿色、环保等优点,为工业化生产麦麸水溶性膳食纤维提供技术参考。

关 键 词:麦麸    水溶性膳食纤维    超声预处理    柠檬酸    亚临界水提取    响应面法
收稿时间:2020-09-30

Extraction of Soluble Dietary Fiber from Wheat Bran by UltrasonicPretreatment-Citric Acid Assisted Subcritical Water Extraction
CHEN Tingting,WU Lixia,XIAO Gaosheng,DUAN Yuqing,ZHANG Haihui,YAN Jingkun.Extraction of Soluble Dietary Fiber from Wheat Bran by UltrasonicPretreatment-Citric Acid Assisted Subcritical Water Extraction[J].Science and Technology of Food Industry,2021,42(9):201-206.
Authors:CHEN Tingting  WU Lixia  XIAO Gaosheng  DUAN Yuqing  ZHANG Haihui  YAN Jingkun
Affiliation:1.School of Food & Biological Engineering, Jiangsu University, Zhenjiang 212013, China2.Suqian Huiwei Food Co., Ltd., Suqian 223900, China
Abstract:Soluble dietary fiber(SDF)was extracted from wheat bran by ultrasonic pretreatment-citric acid assisted subcritical water extraction(USWEC).The effects ofultrasonic pretreatment power,citric acid/wheat bran liquid-to-soild ratio,subcritical water extraction(SWE)temperature and time on extraction yield of SDF were investigated by using single factor experiments.On this basis,the response surface optimization method was further designed to optimize the extraction process parameters.The results showed that the extraction conditions were optimized as follows:Ultrasonic pretreatment power 195 W,citric acid/wheat bran liquid-to-soild ratio 39:1 mL/g,SWE temperature 179℃and time 30 min,and the SDF extraction yield was 41.00%±0.29%.Therefore,the developed method in this study can greatly improve the extraction yield of SDF,which has the advantages of short extraction time,green and environmental protection.This study provides a technological reference for industrial production of SDF from wheat bran.
Keywords:wheat bran  soluble dietary fiber  ultrasonic pretreatment power  citric acid  subcritical water extraction  response surface methodology
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