This study examined the effects of different extraction temperatures (30 °C and 90 °C) on the physicochemical properties and bioactivities of polysaccharides (MFPs-30-60, MFPs-30-80, MFPs-90-40, MFPs-90-60 and MFPs-90-80) extracted at same ethanol gradation (40, 60 and 80%). The polysaccharides were extracted from Fructus Mori, and their antioxidant, hypoglycemic and hypolipidemic activities were evaluated. The results showed that all the polysaccharide fractions contained the same monosaccharides but at different molar ratios. MFPs-30-80 had the highest content of glucose (30.33%), and MFPs-90-40 had the highest content of uronic acid (43.46%). In addition, compared to the extraction temperature of 30 °C, the higher temperature (90 °C) caused the degradation of the extracted polysaccharides. Generally, MFPs-30-80 showed superior antioxidant activity, MFPs-90-40 displayed good bile acid-binding ability, and both MFPs-30-80 and MFPs-90-40 exhibited the strongest inhibitory effects on α-amylase and α-glucosidase activity. This study concludes that the bioactivities of mulberry fruit polysaccharides depend on a combination of structural factors that are greatly affected by the extraction temperature.

中文翻译：

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不同温度下 桑F 多糖提取物理化性质和生物活性的比较研究

这项研究检查了不同提取温度（30°C和90°C）对多糖（MFPs-30-60，MFPs-30-80，MFPs-90-40，MFPs-90-60）的理化性质和生物活性的影响和MFPs-90-80）以相同的乙醇级分（40％，60％和80％）提取。从桑ru中提取多糖，并对其抗氧化剂，降血糖和降血脂活性进行了评估。结果表明，所有多糖级分均含有相同的单糖，但摩尔比不同。MFPs-30-80的葡萄糖含量最高（30.33％），MFPs-90-40的糖醛酸含量最高（43.46％）。此外，与提取温度30°C相比，较高的温度（90°C）导致提取的多糖降解。通常，MFPs-30-80表现出优异的抗氧化活性，MFPs-90-40表现出良好的胆汁酸结合能力，MFPs-30-80和MFPs-90-40均表现出最强的α-淀粉酶和α-淀粉酶抑制作用。葡萄糖苷酶活性。