Evaluation of foam properties of saponin from Ilex paraguariensis A. St. Hil. (Aquifoliaceae) fruits . Braz. J. Pharm. Sci. [Internet]. 2010 Jun. 1 [cited 2024 May 13];46(2):237-43. Available from: https://revistas.usp.br/bjps/article/view/10776