NISCAIR Online Periodicals Repository

Research Journals >
Indian Journal of Natural Products and Resources (IJNPR)
[Formerly Natural Product Radiance (NPR)]
IJNPR Vol.3 [2012] >
IJNPR Vol.3(1) [March 2012] >

Title: Comparative evaluation of antioxidant activities of some fresh and preserved herbal products of North East India by cyclic voltammetry
Authors: Boruah, Manas Pratim
Mahanta, Dhrubajyoti
Handique, Jyotirekha G
Keywords: Antioxidant
Bambusa balcooa
Brassica nigra
Comparative evaluation
Cyclic voltammetry
Fresh herbal products
Garcinia morella
Preserved herbal products
Issue Date: Mar-2012
Publisher: NISCAIR-CSIR, India
IPC CodeInt. cl. (2011.01)- A61K 36/00, A61P 39/06
Abstract: Antioxidant activities of fresh and preserved forms of three herbal products, Bambusa balcooa Roxb., Brassica nigra (Linn.) Koch and Garcinia morella Desr., used by the people of North East India have been evaluated by cyclic voltammetry. The antioxidative effects have been evaluated by monitoring the change of the oxidation potential in the redox cycle of 1,4-diaminobenzene in the presence of hexane, ethyl acetate and methanol extracts of the herbal products. 1,4-Diaminobenzene has two well defined reversible redox cycles with E1/2 at 218 mV and E1/2 at 535 mV in DMF with the oxidation waves due to formation of a radical cation and a diiminium dication, respectively. In the presence of herbal extracts either the oxidation(s) is delayed and/or the radical cation is scavenged as soon as it is formed. It is reflected by the delayed appearance of the oxidation waves and disappearance of the second oxidation wave in the cyclic voltammograms of 1,4-diaminobenzene in the presence of herbal extracts.
Page(s): 40-47
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0976-0512 (Online); 0976-0504 (Print)
Source:IJNPR Vol.3(1) [March 2012]

Files in This Item:

File Description SizeFormat
IJNPR 3(1) 40-47.pdf748.01 kBAdobe PDFView/Open
 Current Page Visits: 674 
Recommend this item


Online Submission of Articles |  NISCAIR Website |  National Knowledge Resources Consortium |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2015 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 169911 since 01-Sep-2015  Last updated on 30-Jun-2016Webmaster: