A New Environmentally Friendly Method for Chlorogenic Acid Extraction from Lonicerae japonica Leaves

作者：Wu, Wei^*; Xiang, Fu

来源：Journal of the Chemical Society of Pakistan, 2018, 40(4): 819-827.

• Lonicerae japonica leaves
• Chlorogenic acid
• Box-Behnken design
• Response surface method
• Polyethylene glycol-based ultrasound-assisted enzymatic extraction

In this paper, an environmentally friendly method, polyethylene glycol (PEG)-based enzyme-assisted ultrasonic extraction (EAUE) was employed in chlorogenic acid (CGA) extraction from Lonicerae japonica leaves. The extraction procedure was optimized, validated and compared extraction yield with that of other conventional extraction techniques. As for the optimal extraction conditions, results obtained showed: 42% of PEG concentration; 49 degrees C of extraction temperature; and pH 4.2, which supported a experimental extraction yield of 6.955%, and it was very close to the predicted values of 6.964%. Compared with heat-reflux extraction, PEG-based EAUE contributed to a higher extraction efficiency of CGA from Lonicerae japonica.

• 出版日期2018-8
• 单位黄冈师范学院; 湖北理工学院