Flaxseed (Linum usitatissimum L.) polysaccharides and oligosaccharides: Structure, extraction, biological properties and industrial applications
文献类型： 外文期刊
第一作者： Xu, Zhenxia
作者： Xu, Zhenxia;Jiang, Nanjie;Li, Min;Xia, Xiaoyang;Xiang, Xia;Li, Min
作者机构：
关键词： Flaxseed polysaccharides and oligosaccharides; Extraction; Structural characteristics; Biological activities; Applications
期刊名称：TRENDS IN FOOD SCIENCE & TECHNOLOGY （ 影响因子：15.4； 五年影响因子：18.4 ）
ISSN： 0924-2244
年卷期： 2025 年 161 卷
页码：
收录情况： SCI
摘要： Background: Flaxseed is a nutritionally and pharmaceutically valuable oil crop. Among its bioactive components, flaxseed polysaccharides (FSP) and oligosaccharides (FGOS) have garnered significant interest due to their functional properties. Nevertheless, their utilization remains largely restricted to traditional roles in the food industry, such as gelling agents, thickeners, and stabilizers. Scope and approach: This review systematically explores the structural characterization, extraction, purification and modification of FSP and FGOS, with a focus on their biological activities and applications in food, pharmaceuticals, and industrial separation. Additionally, research challenges and future perspectives for better utilization are outlined. Key findings and conclusions: FSP primarily consist of neutral arabinoxylans (-75 %) and acidic pectin-like rhamnogalacturonans (-25 %). FGOS, derived from the degradation of FSP, are acidic pyran oligosaccharides (1047-1600 Da). Hot water extraction has long been a widely used method; however, emerging techniques such as ultrasonic, microwave, and enzymatic extraction are gaining attention due to improved extraction efficiency, yield, and selectivity. Structural modifications and degradation of FSP, including chemical, physical, and biological approaches, enhance their structural and functional properties. FSP and FGOS exhibit antioxidant, anti-obesity, immune-enhancing, hypoglycemic, anticancer, anti-inflammatory, hypoglycemic and myocardial mitoprotective effects. Despite their promising applications in industrial filed, further research on structural modifications, structure-activity relationships, and health-related molecular mechanisms is crucial for their high-value utilization.
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