Resumo

BHUSHAN TEWARI, Rij. Basic Phytochemical screening and antibacterial, antifungal and antioxidant properties of Syzygium Cumini, a tree from Guyana. Rev. Bol. Quim [online]. 2020, vol.37, n.3, pp.132-141. ISSN 0250-5460.

Abstract 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 °C for 72 h. The moisture content was calculated. The dried leaves were grounded and extracted in ethanol, methanol, ethyl acétate, 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 literatee. The máximum and the minimum antioxidant power was exhibited by the methanol and the chloroform extracts, respectively. The chloroform and the ethyl acétate extracts were found to have the máximum 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 flavo no ids.

Palavras-chave : Syzygium cumini; Antioxidant power; Antifungal activity; Phytochemical screening; antibacterial property.

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