Xiang Zheng

Ultrasound-Assisted Extraction of Antioxidant Polyphenols from Zheng’an White Tea: Process Optimization and Bioactivity

White tea is rich in polyphenols with antioxidant potential, but information on Zheng’an white tea remains limited. This study optimized water-based ultrasound-assisted extraction (UAE) using single-factor experiments and a Box–Behnken design and evaluated the antioxidant activit...