Abstract (English)

Each  leaf  had  a  different  level  of  exposure  to  environmental  conditions  and  may  affect  the distribution of phytochemicals and antioxidant capacity in Aquilaria beccariana. The aims of this study were to compare total phenolic, flavonoids, and free radical scavenging of A. beccariana leaves at different stages of maturity based on its position in a twig. Leaves at different positions from apex to base in a twig represented gradient increase in the leaf age (young, mature, and old). The powder of dried A. beccariana leaves were macerated using 70% ethanol. Levels of total phenolic were determined by Folin-ciocalteau reagent, total flavonoids assay used FeCl3  reagent, and the antioxidant activity was analyzed using 2,2-diphenyl-1- picrylhydrazyl (DPPH). The results showed that the level of phenolic and flavonoids in mature leaves of A. beccariana was higher than the young and old leaves. Level of phenolic in the young and old leaves was higher than the flavonoids, while the level of phenolic and flavonoids in mature leaves was not significantly different. The mature leaf of A. beccariana was the most potential as an antioxidant with an IC50  value of 72.25+0.72 ppm. This study revealed that leaf age influence the level of secondary metabolites and their antioxidant properties.

Kata Kunci : Aquilaria beccariana; leaf position; flavonoids; phenolic; radical scavenging

Media Publikasi :

Research Journal of Pharmaceutical, Biological and Chemical Sciences January – February 2017

Penulis :

Khoerul Anwar, Beny Rahmanto, Liling Triyasmono, M. Ikhwan Rizki, Wawan Halwany, and Fajar Lestari.

Unduh File

Research Journal of Pharmaceutical, Biological and Chemical Sciences January – February 2017