摘要
艾叶是菊科（Compositae）植物艾（ArtemisiaargyiL6v1．etVant．）的干燥叶，为常用中药材之一，药用历史悠久，具有苦燥辛散、理气血、温经脉、逐寒湿、止冷痛等功效，为重要的妇科用药，可用于治疗脘腹冷痛、经寒不调、宫冷不孕等证。此外，利用艾叶预防瘟疫已有悠久的历史。现代药理研究表明：艾叶是一种广谱抗菌抗病毒中药，对多种病毒和细菌有抑制和杀伤作用，对呼吸系统疾病以及心血管等慢性疾病有一定的防治作用。因此，将艾叶中的有效成分分别提取和纯化并加以分析以及功能检测，具有深远意义。
Abstract： Taking drying powder of Artemisia argyi Levl. et Vant. leaves as materials, single factor experiments about ultrasonic treatment time, solid-liquid ratio （ mass-volume ratio）, water bath temperature and extraction time which may affect on polysaccharide extraction rate were detected. And on this basis, four factors were optimized by L9（3^4） orthogonal experiment design. The results show that according to influence on extraction rate of polysaccharide, the order of four factors from high to low is extraction time, solid-liquid ratio, ultrasonic treatment time, water bath temperature. The optimal extraction condition is solid-liquid ratio 1：40, ultrasonic treatment time 20 min, water bath temperature 80 °C, extraction time 2.0 h. Under the optimal condition, the extraction rate of polysaccharide from A. argyi leaves is the highest with a value of 12.2%.
出处
《植物资源与环境学报》
CAS
CSCD
北大核心
2012年第2期119-120,共2页
Journal of Plant Resources and Environment
基金
江西省教育厅资助项目(GJJ1400)
关键词
艾叶
多糖
提取率
影响因素
正交实验
Artemisia argyi Levl. et Vant. leaf
polysaccharide
extraction rate
influence factor
orthogonal experiment
