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Title: Enzymatic and non-enzymatic antioxidants in selected Piper species
Authors: Karthikeyan, J
Rani, P
Issue Date: Feb-2003
Publisher: NISCAIR-CSIR, India
Abstract: Piper species, commonly used in diet and traditional medicine were assesed for their antioxidant potential. Catalase activity was predominated in Piper longum, followed by Piper cubeba, green pepper, Piper brachystachyum and Piper ni- grum. P. nigrum was richest in glutathione peroxidase and glucosc-6-phosphate dehydrogenase, green pepper was richest in peroxidase and vitamin C while vitamin E was more in P. longum and P. nigrum. P.brachystachyum and P. longum were rich sources of vitamin A. All the Piper species had GSH content of around 1 to 2 nM/g tissue. The antioxidant components of Piper species constitute a very efficient system in scavenging a wide variety of reactive oxygen species. Antioxidant potential of Piper species was further confirmed by their ability to curtail in vitro lipid peroxidation by around 30-50% with concomitant increase in GSH content.
Page(s): 135-140
ISSN: 0975-1009 (Online); 0019-5189 (Print)
Appears in Collections:IJEB Vol.41(02) [February 2003]

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