Optimizing the extraction of bioactive compounds from pu-erh tea (Camellia sinensis var. assamica) and evaluation of antioxidant, cytotoxic, antimicrobial, antihemolytic, and inhibition of α-amylase and α-glucosidase activities

Lorene Armstrong, Mariana Araújo Vieira do Carmo, You Wu, Luís Antônio Esmerino, Luciana Azevedo, Liang Zhang, Daniel Granato