Improvement of xylo-oligosaccharides release from Camellia oleifera shells by 3MeV electron-beam irradiation combined with hydrothermal treatment
文献类型： 外文期刊
作者： Shen, Xiaoyan 1 ; Chen, Liang 2 ; Liu, An 2 ; Qi, Hui 2 ; Wei, Dongning 2 ; Deng, Ming 2 ; Zhou, Yiji 2 ; Wang, Keqin 1 ; Wu, Xiaofen 1 ;
作者机构： 1.Hunan Univ, Coll Biol, Longping Branch, Changsha 410082, Peoples R China
2.Hunan Acad Agr Sci, Hunan Inst Nucl Agr Sci & Chinese Herbal Med, Changsha 410125, Peoples R China
关键词： Camellia oleifera shells; Electron-beam irradiation; Hydrothermal treatment; Xylanase digestion; Xylo-oligosaccharides
期刊名称：INDUSTRIAL CROPS AND PRODUCTS （ 影响因子：6.2； 五年影响因子：6.2 ）
ISSN： 0926-6690
年卷期： 2025 年 235 卷
页码：
收录情况： SCI
摘要： Xylo-oligosaccharides (XOS) have demonstrated extensive benefits for health promotion and are widely used in food, medicine, and chemical industries. While lignocellulosic biomass is a common source, the potential of Camellia oleifera shells (COS) as a raw material for XOS production remains underexplored. The study explored the effects of irradiation doses, hydrothermal temperatures, reaction times, and solid-liquid ratios on the preparation of XOS from COS via a novel method involving electron-beam irradiation and hydrothermal treatment. Optimal conditions (200 kGy, 180 degrees C, 30 min, 1:10 ratio of solid loading) resulted in the XOS yield of 70.35 %, with X2-4 (XOS of DP 2-4) comprising 23.37 % and a xylose/XOS ratio of 0.21. Meanwhile, minimal by-products were detected, including 0.83 g/L acetic acid and less than 0.50 g/L of formic acid, furfural, and 5-hydroxymethylfurfural (5-HMF). Furthermore, xylanase digestion optimization yielded an X2-4 concentration of 11.78 g/L and a X2-4/XOS ratio of 84.93 %. This approach offers a promising and eco-friendly route for XOS production from COS, with implications for valorizing agricultural waste and advancing sustainable biorefinery practices.
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