fulltext.study @t Gmail

Determination of singlet oxygen quenching and protection of biological systems by various extracts from seed of Rumex crispus L

Paper ID Volume ID Publish Year Pages File Format Full-Text
30933 44518 2011 6 PDF Available
Title
Determination of singlet oxygen quenching and protection of biological systems by various extracts from seed of Rumex crispus L
Abstract

The 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging effect and total phenolic contents were evaluated for the screening of singlet oxygen (1O2) quenching efficacy of various seed extracts from Rumex crispus L. The butanol and ethyl-acetate extracts displayed remarkable effect of DPPH as compared to positive control ascorbic acid. The concentrations (QC50) of butanol and ethyl-acetate extracts required to exert 50% reducing effect on 1O2 were found to be 116 and 82 μg mL−1, respectively. Both extracts were also found to protect the in vitro biological system from the detrimental effect of 1O2 on type II photosensitization in Escherichia coli, red blood cell, lactate dehydrogenase and histidine. Among all the tested extracts, the ethyl-acetate and butanol extracts contained higher amount of total phenolic contents. The results suggest that our study may contribute to the development of new bioactive products with potential applications to reduce photo-produced oxidative stress involving reactive oxygen species in living organisms.

Keywords
Antioxidant; Photoprotection; Rumex crispus L; Singlet oxygen quenching
First Page Preview
Determination of singlet oxygen quenching and protection of biological systems by various extracts from seed of Rumex crispus L
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology B: Biology - Volume 102, Issue 2, 7 February 2011, Pages 102–107
Authors
, , , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us