Study on HPLC Determination of Active Components in Eucommia ulmoides Leaves at Different Picking Stages
Objective:To study the changes in active ingredients in Eucommia ulmoides leaves at different picking stages using high-performance liquid chromatography. Method:This experiment investigated the changes in the four main ac-tive ingredients in Eucommia ulmoides leaves at different picking stages using wavelength conversion method,in order to determine the appropriate picking period. Result:Using the comprehensive effective ingredients in Eucommia ulmoi-des leaves as harvesting indicators,the optimal harvesting period for Eucommia ulmoides leaves was determined to be from the end of May to early June. Conclusion:This research process provides a favorable theoretical basis for the large-scale extraction and utilization of active ingredients in Eucommia ulmoides leaves.