Antioxidative properties of leaf extracts of a popular Malaysian herb, Labisia pumila
Trolox
Ulmus pumila
DOI:
10.5897/jmpr.9000239
Publication Date:
2009-04-30
AUTHORS (3)
ABSTRACT
A study was undertaken to examine the presence of antioxidative activities twovarieties of Labisia pumila; L. pumila var. Alata and L. pumila var. Pumila usingDPPH, FRAP and β-carotene bleaching methods. In addition, ascorbic acid, β-carotene, anthocyanin, total flavonoid phenolic content were also analyzed. eight methods studied, six them showed high antioxidant in L. pumila var. Alata compared that of L. pumila var. Pumila. The results obtained that L. Alata contained higher activities in all three applied var. Pumila. DPPH, methods, L. had with 299.84 μM trolox/g db, 164.16 db 89.22 %, respectively. same pattern can be observed in anthocyanin Pumila 0.022, 3.175 0.328 mg/g FW, respectively. L. than L. 1.281 FW. For content, no significant different because amount ranging from 2.53 2.55 There is a positive correlation between capacities individual compounds following order β-carotene>flavonoid>vitamin C>total anthocyanins >phenolics.
Key words: L. pumila, antioxidants, flavonoid, vitamin C, phenolics.
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