Optimization of Processing Parameters for the Ultrasonic Extraction of Geranium
A simple and rapid ultrasonic-assisted extraction (UAE) procedure has been developed and optimized for ethanol extraction yield (EEY ) from the Geranium. Several variables that could potentially affect the extraction efficiency, namely, ethanol fraction (％), ultrasonic extracting time (min), liquid.solid ratio (volume per mass) have been optimized by means of response surface methodology (RSM). The optimum conditions were ethanol fraction 66％, liquid.solid ratio (volume per mass) 16:1 and ultrasonic extracting time 64min, Under the optimum operating conditions, the extraction yield was 24.12 ％, and UAE showed significantly higher recoveries than those obtained by the conventional extraction methods ( reflux extraction). In addition, a drastic reduction of the ultrasonic extraction time (60 min vs. 8 h) and solvent consumption (16 vs. 30) was achieved, comparable with that provided by the reflux extraction as a reference method.
RSM Geranium Ultrasonic Extract
Wenxue Chen Congfa Li Wei Zong Xinpeng Bai
College of Food Science and Engineering, Hainan University, Haikou, 570228, PR China College of Food Science and Bioengineering, Zhengzhou University of light industry Technology, 45000
国际会议
The 2nd Conference on Key Technology of Horticulture(第二届园艺关键技术学术会议 CKTH 2010)
北京
英文
199-202
2010-07-17（万方平台首次上网日期，不代表论文的发表时间）