LUYEN, Le Hong; HIEN, Dong Thi Thu; TU, Vu Cam. Optimization of the ultrasonic-assisted extraction of the total methoxyflavones content from black ginger <i>Kaempferia parviflora</i> rhizomes. <b>Vietnam Journal of Science and Technology</b>, Hanoi, VN, 2026. DOI: 10.15625/2525-2518/22178. Disponível em: https://vjst.vast.vn/jst/article/view/22178. Acesso em: 3 sep. 2026.