Comparative study of polyphenols quantification, total phenolic content, and antioxidant activities of the fruits of three plants of the family of Solanaceae: Lycium ruthenicum, Lycium barbarum, and Lycium Chinense

-Irma B. Yossa Nzeuwa; Fatimata Nea; Junelle Makemteu; Gella M. Ngandeu Neubi; Florence D. Mabou; Jaures A. Noumedem Kenfack; Doriane E. Djeussi; Guiju Sun.

Abstract Background: Fruits from L. ruthenium, L. barbarum, and L. Chinense, of the family Solanaceae are well-known in traditional Chinese medicine and have been used as popular functional foods, with a large variety of beneficial health effects. Methods: In The present study, ethanolic extracts (30%) of lycium fruits were analyzed by high-performance liquid chromatography (HPLC). Total phenolic content was determined together with the quantification of seventeen (17) phenolic compounds....

Cellular modes of action of the methanol extract from the aerial parts of Psychotria sycophylla (K.Schum.) Petit (Rubiaceae) against multidrug-resistant bacteria

-Olive Monique F. Demgne; Cedric F. Tchinda; Armelle T. Mbaveng; Michel-Gael F. Guefack; Veronique P. Beng; Victor Kuete.

Abstract Background: Infectious diseases caused by multidrug-resistant bacteria (MDR) remain a global health issue. The population uses several plants from the Cameroonian pharmacopeia to treat bacterial infections. The methanol extract from the aerial parts of Psychotria sycophylla (K.Schum.) Petit (Rubiaceae) (PSA) previously showed antibacterial activities against MDR bacteria. In the present study, the antibacterial activities of PSA were determined in the presence of an efflux pump inhi...