| dc.description.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. | |
