Wanwimon SuksamerkunSukhathai ThongsomchittYuvadee WongkrajangRungravi TemsiririrkkulWorawan KitphatiSuchitra Thongpraditchoteวรรณวิมล สุขเสมอกุลสุหทัย ทองสมจิตต์ยุวดี วงษ์กระจ่างรุ่งระวี เต็มศิริฤกษ์กุลวรวรรณ กิจผาติสุจิตรา ทองประดิษฐ์โชติMahidol University. Faculty of Pharmacy. Department of PhysiologyMahidol University. Faculty of Pharmacy. Department of Pharmaceutical Botany2015-03-282021-06-022015-03-282021-06-0220152013Journal of Asian Association of Schools of Pharmacy. Vol.2, (2013), 254‐61.2286-6493https://repository.li.mahidol.ac.th/handle/20.500.14594/62561The methanolic extracts of ten Thai vegetables from the leaves of Litsea elliptica Blume, Callerya atropurpurea (Wall.) A. M. Schot, Horaphanam (Limnophila sp.), Sesbania grandiflora (L.) Desv. Young, Kaempferia galanga L., Cucurbita moshata Decne, Allophylus cobbe (L) Raeusch and Manihot esculenta (L) Crantz, rhizomes of Alpinia oxy-mitrum K. Schum. and roots of Zingiber zerumbet (L.) Smith were investigated for antioxidant activities and total phenolic contents. The anti-oxidant activities of these extracts were de-termined by 1,1-diphenyl-2-picryl hydrazyl radical scavenging (DPPH) and ferric-reducing antioxidant power (FRAP) assays. Total phenolic content was evaluated according to the Folin-Ciocalteu pro-cedure. Among the investigated Thai vegetables, the extract from leaves of L. elliptica showed the highest free radical scavenging power with IC50 value of 4.2 µg/ml and the most potent reducing power of 2.02 mmol FeSO4 per g of extract as well as the highest amount of phenolic contents of 11.059 g of gallic acid per 100 g of extract. The results indicated that the antioxidant activity was correlated well with the total phenolic contents suggesting that the phenolic compounds might play a major contribution to free radicals sca-venging activity of the studied plants.523.03 KBapplication/pdfengMahiol UniversityAntioxidant activityTotal phenolic contentCallerya atropurpureaSesbania grandiflora KaempferiaGalangalCucurbita moschataManihot esculentaAlpinia oxymitrumZingiber zerumbetAllophylus cobbeResearch ArticleAsian Association of Schools of Pharmacy