摘要
利用超声波辅助提取法提取迷迭香中的主要生物活性成分鼠尾草酸,分别研究了不同条件对鼠尾草酸提取率的影响。对5.0 g粉碎后的迷迭香叶子进行超声波辅助提取的结果表明,室温较适宜的超声波提取条件是:乙醇质量分数75%、3 g盐酸为酸稳定剂、超声波频率28 kHz、超声波功率200 W、超声波提取时间40 min、料液比(g∶g)1∶16。在上述提取条件下,鼠尾草酸的得率可达18.64 mg/g。
Carnosic acid,the key bioactive component,was extracted from leaves of rosemary（Rosmarinus officinalis L.） using ultrasound-assisted extraction.The different factors such as ethanol concentration,variety of acid stabilizer,acid stabilizer dosage,ultrasonic frequency,ultrasonic power,ultrasonic extraction time and the solid-liquid ratio were studied.The content variations of carnosol,rosmarinic acid,oleanolic acid and ursolic acid were also examined.The experimental results for 5.0 g rosemary leaves showed that the optimum ultrasonic extraction conditions at room temperature were： ethanol solution concentration 75 %,acid stabilizer 3 g hydrochloric acid,ultrasonic frequency 28 kHz,ultrasonic power 200 W,ultrasonic extraction time 40 min,solid-liquid ratio（g∶g） 1∶16.The extraction rate of carnosic acid reached 18.64 mg/g under the above extraction conditions.
出处
《林产化学与工业》
EI
CAS
CSCD
北大核心
2011年第3期60-64,共5页
Chemistry and Industry of Forest Products
基金
国家林业局948技术引进项目(2011-4-01)
科技部农业科技成果转化资金项目(2008GB24320416)
关键词
鼠尾草酸
迷迭香
超声波辅助提取
carnosic acid
rosemary（Rosmarinus officinalis L.）
ultrasound-assisted extraction
