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This research was purposed to investigate nutritional composition and antioxidant activity of Lablab purpureus (L.) Sweet and Acanthopanax trifoliatus Merr., the useful local plants in Chiang Rai. Nutritional analysis was based on Association of Official Analytical Chemists (AOAC) method. The result revealed that both plants contained fat, protein, carbohydrates, crude fiber and ash in ranges of 1.98 - 3.56, 20.77 - 26.15, 37.37 - 50.53, 10.77 - 22.75 and 6.49 - 9.93 g per 100 g DW, respectively. Moreover, both plants also provided different ratios of 12 minerals (N, P, K, Ca, Mg, Mn, S, B, Na, Fe, Zn and Cu). For antioxidant and total phenolic analysis, it was found that A. trifoliatus Merr. represented antioxidant activity with the value of 26.81 µmol TE/g and phenolic content with the value of 9.42 mgGE/g higher L. purpureus (L.) Sweet
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