Activity-guided isolation of antioxidants from the roots of Rheum emodi.
Summary of "Activity-guided isolation of antioxidants from the roots of Rheum emodi."
An activity-guided isolation and purification process was used to identify the DPPH free radical scavenging components of Rheum emodi. The activity-guided isolation revealed that eugenol, gallic acid, quercetin, rutin, epicatechin, desoxyrhapontigenin, rhapontigenin and mesopsin are the major phenolic compounds responsible for the antioxidant activity of the roots of R. emodi.
Affiliation
a Bio-Organic Laboratory, Department of Chemistry , University of Delhi , Delhi 110007 , India.
Journal Details
This article was published in the following journal.
Name: Natural product research
ISSN: 1478-6427
Pages:
Links
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/22568567
- DOI: http://dx.doi.org/10.1080/14786419.2012.682994
Medical and Biotech [MESH] Definitions
Rheum
A plant genus of the family POLYGONACEAE. Members contain chrysophanic acid, rhein, EMODIN, and other anthraquinones. The roots were formerly used as purgatives.
Podophyllin
Caustic extract from the roots of Podophyllum peltatum and P. emodi. It contains PODOPHYLLOTOXIN and its congeners and is very irritating to mucous membranes and skin. Podophyllin is a violent purgative that may cause CNS damage and teratogenesis. It is used as a paint for warts, skin neoplasms, and senile keratoses.
Rhizosphere
The immediate physical zone surrounding plant roots that include the plant roots. It is an area of intense and complex biological activity involving plants, microorganisms, other soil organisms, and the soil.
Rhizome
Root-like underground horizontal stem of plants that produces shoots above and roots below. Distinguished from true roots which don't have buds and nodes. Similar to true roots in being underground and thickened by storage deposits.
Enzyme Stability
The extent to which an enzyme retains its structural conformation or its activity when subjected to storage, isolation, and purification or various other physical or chemical manipulations, including proteolytic enzymes and heat.
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