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CHEMISTRY AND BIOEFFICACY OF PARTHENIN AND ITS DERIVATIVES AGAINST Tribolium castaneum (Herbst

KrishiKosh

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Title CHEMISTRY AND BIOEFFICACY OF PARTHENIN AND ITS DERIVATIVES AGAINST Tribolium castaneum (Herbst
 
Creator Yadwinder Singh
 
Contributor Chahal, K. K.
 
Subject Chemistry
botany
 
Description Extract was obtained by Soxhlet extraction of dried and powdered leaves of Parthenium
hysterophorusL.with chloroform as solvent, followed by the column chromatography in
chloroform: acetone (5%) as eluent resulted in the isolation of parthenin (1). Parthenin (1) was
subjected to reactions with diazomethane, sodium borohydride, methanol and diethanolamine
which afforded diazomethane adduct, reduction product, methanol adduct and diethanolamine
adductas their respective products (50‐53). Parthenin and its derivatives were characterised on
the basis of melting point,TLC,IR, 1H NMR and Mass spectra. Parthenin and its derivatives were
tested for their bioefficacy against adults of Tribolium castaneum (Herbst) by releasing them in
wheat grains spiked with various concentrations of test compounds viz. 500,1,000, 2,000,4,000,
5,000 and 10,000 μg g‐1 of wheat and calculating their corrected percent mortality using
Abbott’s formula. All the compounds exhibited complete mortality at the spiking level of 10,000
μg g‐1. Reduction product was found to be most potent followed by parthenin, diethanolamine
adduct, methanol adduct and diazomethane adduct.
 
Date 2016-11-29T16:02:47Z
2016-11-29T16:02:47Z
2010
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/88200
 
Language en
 
Format application/pdf