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KMID : 1160620140190010027
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Preventive Nutrition and Food Science
2014 Volume.19 No. 1 p.27 ~ p.33
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In vitro Antioxidant Activities of Trianthema portulacastrum L. Hydrolysates
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Yaqoob Sadaf
Sultana Bushra
Mushtaq Muhammad
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Abstract
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Hydrolysates of Trianthema portulacastrum in acidified methanol were evaluated for their total phenolic (TP) constituents and respective antioxidant activities using in vitro assays (i.e., 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity, percent inhibition of linoleic acid peroxidation, and ferric reducing power). The observed results in-dicate that root, shoot, and leaf fractions of T. portulacastrum contain 50.75∼98.09 mg gallic acid equivalents/g dry weight of TP. In addition, these fractions have substantial reducing potentials (0.10∼0.59), abilities to inhibit peroxidation (43.26∼89.98%), and DPPH radical scavenging capabilities (6.98∼311.61 μg/mL IC50). The experimental data not only reveal T. portulacastrum as potential source of valuable antioxidants, but also indicate that acidified methanol may be an ideal choice for the enhanced recovery of phenolic compounds with retained biological potential for the food and pharma-ceutical industry.
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KEYWORD
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Trianthema portulacastrum, effective extraction, antioxidant phenolics, reducing power
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