响应面法优化松茸菌丝体多糖超声波提取工艺及其抗氧化研究

采用响应面法优化超声波提取松茸菌丝体多糖的条件。在单因素试验的基础上,选取超声波时间、水料比和超声波功率为影响因子,应用Box-Behnken中心组合进行3因素3水平的试验设计,以菌丝体多糖得率作为响应值,进行响应面分析(RSM)。结果表明,超声波提取松茸菌丝体多糖的最佳提取条件为:菌丝体干粉0.1 g,提取时间223 s,超声波功率427 W,水料比69.7∶1(mL∶g),得率预测值14.52%,验证值为14.33%,与预测值的相对误差为1.29%,提取2次,得率为16.29%。对超声波提取松茸菌丝体多糖进行抗氧化性研究,结果表明,松茸菌丝体多糖对.O2-清除作用较好,最大清除率为19.32%;对.OH清除作用显著,最大清除率为88.24%。

Optimization of Ultrasound-assisted Extraction of Tricholoma matsutake ycelium Polysaccharide Using Response Surface Methology and ts Antioxidative Effect

Response surface analysis methodology(RSM) was used for optimizing ultrasound-assisted extraction of Tricholoma matsutake mycelium polysaccharides.Based on single-factor experiments,three independent variables,namely extraction time,water-solid ratio and ultrasonic power,were selected as casual factors.The experiments were arranged according to Box-Behnken central composite experiment design.Response surface analysis was applied to determine the effect of central composite experiment design.Response surface...