Ultrasound-assisted enzymatic extraction of soluble dietary fiber from fresh corn bract and its physio-chemical and structural properties

文献类型： 外文期刊

第一作者： Geng, Ningning

作者： Geng, Ningning;Song, Jiangfeng;Li, Ying;Liu, Chunquan;Song, Jiangfeng;Luo, Shuwei;Wu, Caie;Geng, Ningning;Song, Jiangfeng;Wu, Gang

作者机构：

关键词： fresh corn bract; physio-chemical properties; soluble dietary fiber; structural characteristics; ultrasound-assisted enzymatic extraction

期刊名称：QUALITY ASSURANCE AND SAFETY OF CROPS & FOODS （ 影响因子：1.672； 五年影响因子：1.4 ）

ISSN： 1757-8361

年卷期： 2022 年 14 卷 2 期

页码：

收录情况： SCI

摘要： The soluble dietary fiber from fresh corn bract (FCB-SDF) was extracted by ultrasonic-assisted cellulase method. The process parameters of FCB-SDF were optimized by Box???Behnken design (BBD), and the physio-chemical properties and structure of FCB-SDF obtained were investigated. The results showed that the optimal extraction conditions for FCB-SDF were enzyme concentration 1.58%, ultrasonic power 300 W, and extraction time 90 min. Under the above conditions, the FCB-SDF yield reached 21.21%. Compared with ultrasonic treatment group (U-SDF) and enzymatic treatment group (E-SDF), ultrasound-assisted enzymatic treatment group (UE-SDF) had higher WHC and OHC, but lower WSC. Its particle size was smaller, and a more microscopic pore structure was formed. UE-SDF had a low molecular weight of 204.41 KDa, and its monosaccharide composition had the highest arabinose content, followed by glucose. The SDFs obtained might be mainly composed of pectin and hemicellu-lose, E-SDF and UE-SDF contained more hemicellulose, and U-SDF contained more pectin.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序