Effect of ultrasound-assisted extraction on total phenolics, flavonoids, and antioxidant activity of Adenostemma lavenia leavesNurlela Nurlela, Risma Aprilia, Candra Irawan, Nina Ariesta and Irmanida BatubaraBIO Web Conf., 123 (2024) 02010DOI: https://doi.org/10.1051/bioconf/202412302010