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Potential antioxidant anthraquinones isolated from rheum emodi showing nematicidal activity against meloidogyne incognita
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نویسنده
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tripathi b. ,bhatia r. ,pandey a. ,gaur j. ,chawala g. ,walia s. ,choi e.h. ,attri p.
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منبع
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journal of chemistry - 2014 - دوره : 2014 - شماره : 0
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چکیده
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Antioxidant and nematicidal properties were evaluated for r. emodi extractives which are extracted by standardizing and adopting accelerated solvent extraction (ase) method along with traditional soxhlet extraction. the extracted material was separated using flash chromatography and the separation conditions and solvents were standardized for the extracted plant constituents. the purity was detected by using analytical reverse phase high pressure liquid chromatography (hplc). lc-ms/ms detection in the direct infusion mode of the isolated,purified products afforded four anthraquinones,characterized by their infrared spectra (ir) and 1h spectra as chrysophanol,physcion,emodin,and aloe-emodin. five antraquinone glucoside derivatives and piceatannol-3-o-β-d-glucopyranoside have also been detected from the extracted product. during in vitro evaluation the antioxidant potential of methanolic crude extract (ce1) was the highest,followed by ethyl acetate crude extract (ce2) and chloroform extract (ce3) in dpph radical scavenging activity. the ce1 also demonstrated outstanding nematicidal activity as compared with other extracts,pure anthraquinones,and even positive control azadirachtin. the study conclusively demonstrated the antioxidant potential of r. emodi extracts and also its ability in extenuating the meloidogyne incognita (root-knot nematode). the bioassay results can be extrapolated to actual field condition and clinical studies. © 2014 brijesh tripathi et al.
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آدرس
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division of agricultural chemicals,indian agricultural research institute,new delhi,india,department of science and technology, India, department of chemistry,institute of home economics,hauz khas,new delhi,india,department of chemistry,university of delhi, India, department of chemistry,university of delhi, India, council of scientific and industrial research-national physical laboratory,dr. k. s. krishnan marg, India, division of nematology,indian agricultural research institute, India, division of agricultural chemicals,indian agricultural research institute, India, plasma bioscience research center,department of electrical and biological physics,kwangwoon university, South Korea, plasma bioscience research center,department of electrical and biological physics,kwangwoon university, South Korea
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Authors
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