超声辅助提取竹叶黄酮及提取机理研究Study on Ultrasonic-Assisted Extraction of Flavonoids from Bamboo Leaves and Extraction Mechanism
程涛,李仕鲁,陈德勇,何义国,赵兴秀
摘要(Abstract):
文章采用超声辅助提取竹叶黄酮,通过响应面法得到最优提取条件。结果表明,最优提取条件为超声功率356 W、超声时间15 min、乙醇浓度59.6%、料液比1∶27 (g/mL)、竹叶粉末大小60~80目、竹叶浸润时间40 min,该条件下竹叶黄酮提取率可达到(1.647 5±0.064)%。文章还分析了超声提取机理,发现超声波的热效应为竹叶黄酮的提取提供了适宜的温度,有利于竹叶黄酮的提取,同时超声波降解了竹叶的细胞壁,减小了传质阻力,从而有利于竹叶黄酮的溶出。
关键词(KeyWords): 竹叶黄酮;超声提取;响应面法;提取机理
基金项目(Foundation): 四川省科技创新创业苗子工程项目(2021JDRC0129)
作者(Author): 程涛,李仕鲁,陈德勇,何义国,赵兴秀
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