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Interactions during fermentation between pesticides and oenological yeasts producing H2S and SO2

Cabras, Paolo and Garau, Vincenzo Luigi and Angioni, Alberto and Farris, Giovanni Antonio and Budroni, Marilena and Spanedda, Lorenzo (1995) Interactions during fermentation between pesticides and oenological yeasts producing H2S and SO2. Applied Microbiology and Biotechnology, Vol. 43 (2), p. 370-373. eISSN 1432-0614. Article.

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DOI: 10.1007/BF00172841

Abstract

The degradative action of two strains of Saccharomyces cerevisiae, producers of large quantities of H2S and SO2, on eight sulphur-containing insecticides (chlorpyrifos-methyl, dimethoate, fenitrothion, fenthion, malathion, methidathion, parathion, and quinalphos) was studied. Moreover, the influence of these compounds on the fermentative activity of the yeasts was investigated. The yeasts adsorbed and degraded the studied insecticides to various extents, but their fermentative activity was not affected. A moderate adsorption (approximately 10% of the residue) was observed for chlorpyrifos-methyl, fenitrothion, parathion, and quinalphos. When adsorbed, the insecticides were also degraded by about 50%. The degraded pesticides belong to the thiophosphates, while the dithiophosphates showed higher stability. The two yeast strains showed analogous degradative actions.

Item Type:Article
ID Code:5317
Status:Published
Refereed:Yes
Uncontrolled Keywords:Saccharomyces cerevisiae, insecticides, fermentative activity of the yeasts
Subjects:Area 07 - Scienze agrarie e veterinarie > AGR/16 Microbiologia agraria
Divisions:001 Università di Sassari > 01 Dipartimenti > Scienze ambientali agrarie e biotecnologie agro-alimentari
Publisher:Springer Berlin / Heidelberg
eISSN:1432-0614
Deposited On:17 Jan 2011 17:59

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