Journal
FOOD CHEMISTRY
Volume 116, Issue 1, Pages 13-18Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2009.01.091
Keywords
Bauhinia kockiana; Caesalpinia pulcherrima; Cassia surattensis; Antioxidants; Polyphenols
Funding
- Monash University
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Determination of total phenolic (TPC), flavonoid and anthocyanin contents, and various antioxidant activities (2,2-diphenyl-1-picrylhydrazyl radical scavenging, ferric reducing power, ferrous ion chelating and lipid peroxidation inhibition) of leaves and flowers of Bauhinia kockiana, Caesalpinia pulcherrima and Cassia surattensis were performed in this study. The B. kockiana flower was found to possess the highest TPC (8280 +/- 498 mg GAE/100g), free radical scavenging activity (ascorbic acid equivalents 14,600 +/- 2360 mg AA/100 g) and reducing ability (72.4 +/- 8.7 mg GAE/g). Rutin and chlorogenic acid were detected in the plants, where the C. pulcherrima leaf contained the highest amount of rutin (669 +/- 26 mg/100 g), while minute amounts of chlorogenic acid were detected in C. surattensis leaf (9.13 +/- 0.44 mg/100 g). The C. pulcherrima leaf displayed the highest ferrous ion chelating and lipid peroxidation inhibition activities. Positive correlation was observed between TPC and various antioxidant activities. (C) 2009 Elsevier Ltd. All rights reserved.
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