CRIBADO FITOQUÍMICO BÁSICO Y PROPIEDADES ANTIBACTERIANAS, ANTIFÚNGICAS Y ANTIOXIDANTES DE SYZYGIUM CUMINI, UN ÁRBOL DE GUYANA

Syzygium cumini or Jamun is an evergreen tropical tree in ornamental plant family Myrtaceae. The plant material (leaves) of Syzygium cumini (Jamun) was collected at the Institute of Applied Science and Technology (IAST), University of Guyana, Turkeyen Campus. Leaves were dried in oven at 50-60 oC for 72 h. The moisture content was calculated. The dried leaves were grounded and extracted in ethanol, methanol, ethyl acetate, and chloroform solvents, succesively. Extracts were collected and evaporation of solvent was done on rotavapour. The respective solvent was added to viscous semi solid liquid extract to make up the desired volume of extract solution. The micro-organisms (Escherichia coli, Staphylococcus aureus and Candida albicans) were obtained from GPHC, Georgetown, Guyana. The antioxidant, antimicrobial and antifungal activity of the different extracts was assessed by methods reported in the literature. The maximum and the minimum antioxidant power was exhibited by the methanol and the chloroform extracts, respectively. The chloroform and the ethyl acetate extracts were found to have the maximum and the minimum antibacterial activity against Escherichia coli, Staphylococcus aureus, as well as the antifungal activity against Candida albicans, respectively by the disc diffusion method. Phytochemical analysis of the Syzygium cumini leave extracts revealed the presence of carbohydrates, terpenoids, proteins, amino acids and flavonoids. Received 03 24 2020 Accepted 08 26 2020 Published 08 26 2020