Antioxidant Activity of Some Selected East Borneo Plants

Abstract

The native plants of East Borneo the Costus specious (Koening) J.E. Smith stem, Lagerstroemaspesiosa Pers leaf, Cerberamangans L leaf, Vitistrifolia L fruit., Scurrulaatropurpurea (Blume) Danser root, Bruceajavanica (L.) Merr. leaf, Lygodiummicrophyllum, Bidens Chinensis Willd., Sonneratiacaseolaris L. peel, Sonneratiacaseolaris L. stem is almost underexplored for their potensial benefits. They were extracted by the solvents of increasing polarity (n-hexane, ethyl acetate, and n-butanol) were tested for their free radical activity against DPPH (2.2-diphenyl-1-picrylhydrazyl). The ethyl acetate extract of Costusspesiosus (Koening) J. E. Smith antioxidant were screnned concentration of 68 ppm, similarly athyl acetate extract of Vitistrivolia L., showed antioxidant activity at 64.30 ppm. As the ethyl acetate extract of Scurrullaatropurpurea (Blume), Bruceajavanica (L.) Merr, Lygodiummicrophyllum and Sonneratiacaseolaris L. stem, showed antioxidant activity at 273.52 ppm, 91.12 ppm, 17.39 ppm and 7.03 ppm. Nbutanol extract of Lagerstroemaspesiosa Pers, Cerberamangans L, BidenschinensisWilld, and Sonneratiacaseolaris L. peel showed 8.37 ppm, 128.59 ppm, 18.17 ppm and 54.29 ppm antioxidant activity using DPPH model systems. Owing to the property, the studies can be further extended to exploit them for their possible application for preservation of food products as well as their use as health supplements.