Antioxidant Activities Of Traditional Medicinal Plants From Lauraceae Family In Sarawak / Costance Chin ... [et al.]

Chin, Costance and Khong, Heng Yen and Yi Mian, Vivien Jong (2009) Antioxidant Activities Of Traditional Medicinal Plants From Lauraceae Family In Sarawak / Costance Chin ... [et al.]. [Research Reports] (Unpublished)

Abstract

This study aims to determine the antioxidant properties of traditional plants from the Lauraceae family in Sarawak. Twenty selected plants from the Lauraceae family were collected from various mixed dipterocarp forests located in the Kuching and Samarahan Districts of Sarawak. Their antioxidant activities were evaluated on the methanolic extracts using the DPPH (2,2-Diphenyl-lrpicrylhydrazyl ) assay as described by Bors et al. (1992). The findings indicated a large variation in the antioxidant activity of which ranged from 14.1 to > 500 gg/rnL with a mean value of 184.1 pg/L. Amongst all the tested methanol extracts of the plant samples, the bark of L. grandis (EC50 value of 14.1 gg/mL) exhibited remarkable antioxidant activity when compared to vitamin E (EC50 value of 13.8 ug/mL) and quercetin (EC50 value of 11.7). In addition, the methanolic extracts of the roots of L. accedens var oblanceolaat, the leaves of Dehaasia longpetiolata and the bark of Beilschmiedia pulverulenta showed EC50 values of less than 30 gg/mL.

Metadata

Item Type: Research Reports
Creators:
Creators
Email / ID Num.
Chin, Costance
UNSPECIFIED
Khong, Heng Yen
UNSPECIFIED
Yi Mian, Vivien Jong
UNSPECIFIED
Subjects: R Medicine > R Medicine (General)
S Agriculture > SB Plant culture > Medicinal plants (Culture only)
Divisions: Universiti Teknologi MARA, Sarawak > Research Management Institute (RMI)
Keywords: traditional plants, research,Traditional Medicinal Plants
Date: December 2009
URI: https://ir.uitm.edu.my/id/eprint/41638
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