Quality Marker Discovery and Quality Evaluation of Eucommia ulmoides Pollen Using UPLC-QTOF-MS Combined with a DPPH-HPLC Antioxidant Activity Screening Method
Pollen, as an important component of Eucommia ulmoides (EUP), is rich in nutrients and is receiving increasing attention.At present, there are no reports on research related to the chemical composition and quality standards of EUP, and there are significant quality differences and copyright phenomena in the market.This study used a UPLC-QTOF-MS sys