Antioxidant and GC-MS Analysis of Cyperus iria, Fimbristyis miliacea, and Fimbristylis globulosa

Abstract

Cyperaceae family had been commonly found in rice field areas. This family consists of 3000 species and 220 of them were classified as weeds. The presence of secondary metabolites demonstrates that this family of weeds, despite being one of the most invasive species in the world, is capable of a variety of biological functions. In this study, the antioxidant analysis and potentially chemical compunds were identified on three weeds in Cyperaceae family: Cyperus iria, Fimbristylis miliacea, and Fimbristylis globulosa. The GC-MS analysis of methanol extract of the three species showed 25, 11, and 9 compounds respectively. This study focuses on the non-polar extraction. The methanol extracts of these three species were screened for antioxidant activity. Antioxidant activity was determined using DPPH test. IC50 values for the extracts are 309.07 μg/ml (C. iria), 250.67 μg/ml (F. miliaea), and 623.82 μg/ml (F. globulosa).