Extraction of Soluble Dietary Fiber from Wheat Bran by Ultrasonic Pretreatment-Citric Acid Assisted Subcritical Water Extraction

Tingting CHEN; Lixia WU; Gaosheng XIAO; Yuqing DUAN; Haihui ZHANG; Jingkun YAN

doi:10.13386/j.issn1002-0306.2020090313

Volume 42 Issue 9

Apr. 2021

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Science and Technology of Food Industry > 2021 > 42(9): 201-206. > DOI: 10.13386/j.issn1002-0306.2020090313

CHEN Tingting, WU Lixia, XIAO Gaosheng, et al. Extraction of Soluble Dietary Fiber from Wheat Bran by Ultrasonic Pretreatment-Citric Acid Assisted Subcritical Water Extraction[J]. Science and Technology of Food Industry, 2021, 42(9): 201−206. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2020090313.

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Extraction of Soluble Dietary Fiber from Wheat Bran by Ultrasonic Pretreatment-Citric Acid Assisted Subcritical Water Extraction

1.
School of Food & Biological Engineering, Jiangsu University, Zhenjiang 212013, China
2.
Suqian Huiwei Food Co., Ltd., Suqian 223900, China

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Received Date: September 29, 2020
Available Online: March 15, 2021

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Abstract

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.
- wheat bran,
- soluble dietary fiber,
- ultrasonic pretreatment power,
- citric acid,
- subcritical water extraction,
- response surface methodology

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References (27)

References

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