Biomaterial Database

Fenvalerate (alpha-cyano-m-phenoxy-benzyl alpha-isopropyl-p-chlorophenyl acetate) residues in and on okra fruits. 1996

R K Jain

Department of Microbiology, Barkatullah University, Bhopal, India.

Okra crop was sprayed with sumicidin 20E (Fenvalerate 20% EC) at the rate of 300 ml/ha (C1), 375 ml/ha (C2) and 500 ml/ha (C3). Residues in fruit samples were determined by gas chromatography (Hewlett Packard 5890 A) at different time intervals to establish the safe waiting period for Fenvalerate. The initial deposits of Fenvalerate on okra fruits for C1, C2 and C3 were 1.4 ppm, 2.8 ppm and 4.5 ppm, respectively. Seven days after spraying, the initial deposits of C1, C2 and C3 decreased to 0.03 ppm, 0.05 ppm and 0.67 ppm, respectively. The residue values of Fenvalerate on okra fruits 7 days after spraying were below the tolerance limit (0.2 ppm; Anonymous, 1978; FAO, 1980) for C1 and C2, but above it in the case of C3. Ten days after spraying, the residue values of C1, C2 and C3 were below the tolerance limit.

UI	MeSH Term	Description	Entries
D007306	Insecticides	Pesticides designed to control insects that are harmful to man. The insects may be directly harmful, as those acting as disease vectors, or indirectly harmful, as destroyers of crops, food products, or textile fabrics.	Insecticide
D009570	Nitriles	Organic compounds containing the -CN radical. The concept is distinguished from CYANIDES, which denotes inorganic salts of HYDROGEN CYANIDE.	Nitrile
D010573	Pesticide Residues	Pesticides or their breakdown products remaining in the environment following their normal use or accidental contamination.	Pesticide Residue,Residue, Pesticide,Residues, Pesticide
D011722	Pyrethrins	The active insecticidal constituent of CHRYSANTHEMUM CINERARIIFOLIUM flowers. Pyrethrin I is the pyretholone ester of chrysanthemummonocarboxylic acid and pyrethrin II is the pyretholone ester of chrysanthemumdicarboxylic acid monomethyl ester.	Pyrethrin,Pyrethroid,Pyrethroids
D002849	Chromatography, Gas	Fractionation of a vaporized sample as a consequence of partition between a mobile gaseous phase and a stationary phase held in a column. Two types are gas-solid chromatography, where the fixed phase is a solid, and gas-liquid, in which the stationary phase is a nonvolatile liquid supported on an inert solid matrix.	Chromatography, Gas-Liquid,Gas Chromatography,Chromatographies, Gas,Chromatographies, Gas-Liquid,Chromatography, Gas Liquid,Gas Chromatographies,Gas-Liquid Chromatographies,Gas-Liquid Chromatography
D005506	Food Contamination	The presence in food of harmful, unpalatable, or otherwise objectionable foreign substances, e.g. chemicals, microorganisms or diluents, before, during, or after processing or storage.	Food Adulteration,Adulteration, Food,Adulterations, Food,Contamination, Food,Contaminations, Food,Food Adulterations,Food Contaminations
D013997	Time Factors	Elements of limited time intervals, contributing to particular results or situations.	Time Series,Factor, Time,Time Factor
D018556	Crops, Agricultural	Cultivated plants or agricultural produce such as grain, vegetables, or fruit. (From American Heritage Dictionary, 1982)	Agricultural Crops,Agricultural Crop