A brown alga, Padina minor Yamada (division Phaeophyta), collected from Naiyang beach, Phuket province, Thailand was examined for antioxidant properties. The aqueous extract of P. minor showed radical scavenging activity of 864.71 ± 19.75 mg gallic acid equivalent (GAE) and 0.567 ± 0.004 µM Trolox equivalent (TEAC) when tested by the DPPH (1-diphenyl-2-picrylhydrazyl) and ABTS•+ (2,2’-azino-bis 3-ethylbenzthiazoline -6-sulfonic acid cation) assays, respectively. Additionally, the extract inhibited lipid peroxidation of rat liver (0.052 ± 0.001 mM TEAC). Total phenolic content of the extract was found to be 217.40 ± 11.28 mg GAE. The antioxidant activities of P. minor indicate its potential role as nutraceutical and cosmeceutical products.
Keywords: Padina minor, DPPH, ABTS˙+, lipid peroxidation, phenolic content, anti-oxidant activity
Corresponding author: E-mail: doung_prim@yahoo.com
Amornlerdpison*, D. ., Peerapornpisal, Y. ., Taesotikul, T. ., Jamjai, U. ., Nualchareo, M. ., & Kanjanapothi, D. . (2007). ANTIOXIDANT ACTIVITY OF Padina minor YAMADA. CURRENT APPLIED SCIENCE AND TECHNOLOGY, 1-7.
