From wheat gluten wastewater to functional biscuits: Extraction, characterization, and application of water-unextractable arabinoxylan in low-GI fermented biscuits
文献类型： 外文期刊
作者： Bai, Zhouya 1 ; Li, Xingguo 1 ; Cheng, Siyi 1 ; Feng, Junwei 2 ; Yue, Chonghui 1 ; Li, Peiyan 1 ; Chen, Yuanyuan 1 ; Fan, Qiuxia 1 ; Gao, Haiyan 3 ; Sun, Yi 1 ; Gu, Xinya 1 ; Zhang, Kangyi 4 ; Li, Xinling 1 ; Luo, Denglin 1 ;
作者机构： 1.Henan Univ Sci & Technol, Coll Food & Bioengn, Luoyang 471023, Henan, Peoples R China
2.Henan Feitian Agr Dev Stock Co Ltd, Hebi 456750, Peoples R China
3.Henan Inst Sci & Technol, Xinxiang 453003, Peoples R China
4.Henan Acad Agr Sci, Ctr Agr Prod Proc, 116 Huayuan Rd, Zhengzhou 450000, Peoples R China
关键词： Wheat gluten wastewater; Water-unextractable arabinoxylan; Vitro digestion; Vitro fermentation; GI
期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.5； 五年影响因子：8.7 ）
ISSN： 0141-8130
年卷期： 2025 年 321 卷
页码：
收录情况： SCI
摘要： In this study, water-unextractable arabinoxylan (WUAX) was recovered from wheat gluten wastewater, aiming to enhance its utilization and develop low glycemic index (GI) fermented biscuits for diabetics. The study first investigated the influence of crude water-unextractable arabinoxylan (CW) on the digestive and textural properties of biscuits. CW was then purified to obtain pure water-unextractable arabinoxylan (PW), and PW was characterized. Based on the biscuit formulation with CW, the effects of PW on biscuit quality, digestion and fermentation properties were further explored. Results indicated that biscuits with 20 % CW substitution exhibited an estimated GI (eGI) below 55 but increased hardness. Compared to 0 % PW group, the hardness of the biscuits in the 2 % PW group decreased by 29.37 %, the tightly bound water content increased by 68.88 %, and the eGI value decreased to 52.95. Fermentation of WUAX biscuits using fecal microbiota from diabetic or healthy mice reduced pH and sugar content in the system, while promoting the proliferation of probiotics, specifically HT002, Lactobacillus, and Akkermansia, and inhibiting pathogenic bacteria, including Proteus and Enterococcus. This study demonstrates the potential of utilizing wastewater-derived WUAX as a functional dietary fiber in low-GI foods, offering glycemic control and prebiotic benefits.
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