Journal
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
Volume 23, Issue 2, Pages 185-189Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jfca.2009.10.002
Keywords
Tropical teas; Temperate teas; Herbal teas; Camellia sinensis; Antioxidant activity; Food analysis; Food composition
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Funding
- Monash University Sunway Campus (MUSC) Malaysia
- Forest Research Institute Malaysia (FRIM)
- Okinawa, Japan
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Antioxidant properties (AOP) of thirteen tropical and five temperate herbal teas were screened. Comparisons were made with green, oolong and black teas of Camellia sinensis. The AOP studied were total phenolic content, radical-scavenging activity, ferric-reducing power and ferrous ion-chelating (FIC) ability. Tropical herbal teas were more diverse in types and more variable in AOP values than temperate herbal teas. Herbal teas generally had lower antioxidant values than teas of C. sinensis. Exceptions were lemon myrtle, guava and oregano teas with AOP comparable to black teas. FIC ability of mint and peppermint teas was significantly stronger than all C. sinensis teas. (C) 2010 Elsevier Inc. All rights reserved.
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