European Journal of Biomedical and Pharmaceutical Sciences

CHEMICAL COMPOSITION AND ANTIOXIDANT ACTIVITY OF ESSENTIAL OIL OF LEAVES FRESH Syzygium cumini COLLECTED IN THE AMAZON REGION IN SEASONS DIFFERENT.

Francimauro S. Morais*, Emerson S. Lima, Leonard D. R. Acho, Norberto P. Lopes, Izabel C. C. Turatti, Anderson C. Guimarães e Renata Takeara

ABSTRACT

Essential oils are distributed in a limited number of families, as Myrtaceae, Lauraceae, Rutaceae, Lamiaceae, Asteraceae, Apiaceae, Cupressaceae, Poaceae, Zingiberaceae and Piperaceae. The leaves of Syzygium cumini are used in folk medicine as a remedy against diabetes, dysentery, indigestion, gastrointestinal disorders, anti-inflammatory agent, antipyretic and anti-emetic. The leaves of S. cumini were collected at AM-010 Road, Km 26, Itacoatiara-Manaus sense. The essential oils were obtained by hydro distillation of fresh material Clevenger apparatus (6 h). The samples analyzed in GC-MS to identify the chemical constituents. The α - Pinene is the substance with the highest percentage in area among those identified in the essential oil from the leaves of S. cumini. The area values α - Pinene ranged from 17.99% 10/2013 in maximum and 56.14% 02/2014. The results of DPPH inhibition of essential oil samples were kept constant even with varying composition of the major compounds. The chemical composition of essential oil of fresh leaves of S. cumini suffers variations in percentage values in the area of major compounds depending on the time in which they are collected. The α-Pinene was the major substance in almost all the analyzed periods.

Keywords: Seasonality, Myrtaceae, GC-MS and ? - Pinene