不同发育期桑椹黄酮醇提取物抗氧化、降血糖活性评价  

Evaluation of Antioxidant and Hypoglycemic Activities of Flavonol Extracts from Mulberry at Different Development Stages

作　　者：胡点 蔡冲 HU Dian;CAI Chong(Zhejiang Provincial Key Laboratory of Bio-metrology,Inspection and Quarantine,College of Life Sciences,China Jiliang University,Hangzhou 310018)

机构地区：[1]中国计量大学生命科学学院,浙江省特色农产品品质及危害物控制技术重点实验室,杭州310018

出　　处：《食品工业》2024年第5期75-80,共6页The Food Industry

基　　金：浙江省自然科学基金项目(LY21C150007,LY17C150003);浙江省重点研发计划项目(2019C02074);国家自然科学基金项目(31401923)。

摘　　要：试验旨在研究桑椹大10和白玉王不同发育期黄酮醇提取物的抗氧化活性、降血糖活性及其与黄酮醇类化合物的关系。以桑椹大10和白玉王幼果期、转色期、成熟期的果实为试验材料,测定桑椹黄酮醇提取物的抗氧化活性、降血糖活性和黄酮醇含量,并进行相关性分析。结果表明,桑椹大10成熟期抗氧化活性、降血糖活性最好。黄酮醇含量与DPPH自由基消除率、ABTS自由基清除率、羟自由基清除率呈显著正相关(P<0.05),与α-淀粉酶抑制率、α-葡萄糖葡萄糖苷酶抑制率也有显著的正相关(P<0.05)。该研究结果为开发抗氧化、降血糖活性的桑椹药食同源类产品在品种、时期筛选和加工方式选择方面提供了科学依据。The aim of this experiment was to study the antioxidant activity, hypoglycemic activity and the relationship between flavonol extracts and flavonols in different development stages of Morula and Fructus alba. The antioxidant activity,hypoglycemic activity and flavonol content of flavonol extract of mulberry fruit at young, transcolor and mature stages were determined, and the correlation analysis was carried out. The results showed that the antioxidant activity and hypoglycemic activity were the best in mature period of mulberry. Flavonol content was significantly positively correlated with DPPH free radical elimination rate, ABTS free radical clearance rate and hydroxyl free radical clearance rate(P<0.05), and was also significantly positively correlated with α-amylase inhibition rate and α-glucosidase inhibition rate(P<0.05). The results of this study provided a scientific basis for the selection of varieties, periods and processing methods of mulberry homologous products with antioxidant and hypoglycemic activities.

关 键 词：桑椹 黄酮醇类化合物 抗氧化 降血糖 

分 类 号：TS255.1[轻工技术与工程—农产品加工及贮藏工程]