微 波 辅 助 热 水 浸 提 黄 芩 茎 叶 多 糖 的 工 艺 优 化.

To determine the optimal extraction process for polysaccharides from the stems and leaves of Scutellaria baicalensis. Single factor stepwise optimization experiment and response surface analysis were used to optimize the extraction process of polysaccharides from Scutellaria baicalensis stem and leaves using microwave assisted hot water extraction, with the polysaccharide content in the extraction solution as the indicator. The optimal extraction conditions for Scutellaria baicalensis stem and leaf polysaccharides obtained from the single factor stepwise optimization experiment were as follows: microwave pre-treatment time of 5 minutes, microwave pretreatment power of 800 W, solid-liquid ratio of 1:35 (g/mL), water extraction time of 4 hours, and water extraction temperature of 100 ℃. Under these conditions, the extraction rate of Scutellaria baicalensis stem and leaf polysaccharides was 17.39%. The optimal extraction conditions for polysaccharides from Scutellaria baicalensis stem and leaves obtained through response surface analysis optimization are: microwave pretreatment time of 312 seconds, microwave pre-treatment power of 800 W, solid-liquid ratio of 1:34 (g/mL), water extraction time of 244 minutes, and water extraction temperature of 100 ℃ . Under these conditions, the extraction rate of polysaccharides from Scutellaria baicalensis stem and leaves is 17.49%. The optimized extraction process of poly-saccharides from Scutellaria baicalensis stems and leaves is simple, reasonable, and feasible. [ABSTRACT FROM AUTHOR]