Stability of the dithiocarbamate pesticide maneb in tomato homogenates during cold storage and thermal processing

Kontou, S; Tsipi, D; Tzia, C

dc.contributor.author	Kontou, S	en
dc.contributor.author	Tsipi, D	en
dc.contributor.author	Tzia, C	en
dc.date.accessioned	2014-03-01T01:21:27Z
dc.date.available	2014-03-01T01:21:27Z
dc.date.issued	2004	en
dc.identifier.issn	0265-203X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/16245
dc.subject	Cold storage	en
dc.subject	Dithiocarbamates	en
dc.subject	Ethylenethiourea	en
dc.subject	Maneb	en
dc.subject	Stability	en
dc.subject	Thermal-processing	en
dc.subject	Tomatoes	en
dc.subject.classification	Chemistry, Applied	en
dc.subject.classification	Food Science & Technology	en
dc.subject.classification	Toxicology	en
dc.subject.other	2 imidazolidinethione	en
dc.subject.other	maneb	en
dc.subject.other	toxin	en
dc.subject.other	article	en
dc.subject.other	cooking	en
dc.subject.other	cryopreservation	en
dc.subject.other	degradation	en
dc.subject.other	flame photometry	en
dc.subject.other	food analysis	en
dc.subject.other	food contamination	en
dc.subject.other	food processing	en
dc.subject.other	gas chromatography	en
dc.subject.other	high performance liquid chromatography	en
dc.subject.other	nonhuman	en
dc.subject.other	priority journal	en
dc.subject.other	thermostability	en
dc.subject.other	tomato	en
dc.subject.other	Cold	en
dc.subject.other	Drug Stability	en
dc.subject.other	Food Analysis	en
dc.subject.other	Food Contamination	en
dc.subject.other	Food Handling	en
dc.subject.other	Food Preservation	en
dc.subject.other	Fungicides, Industrial	en
dc.subject.other	Heat	en
dc.subject.other	Lycopersicon esculentum	en
dc.subject.other	Maneb	en
dc.subject.other	Pesticide Residues	en
dc.subject.other	Sterilization	en
dc.subject.other	Temperature	en
dc.subject.other	Lycopersicon esculentum	en
dc.title	Stability of the dithiocarbamate pesticide maneb in tomato homogenates during cold storage and thermal processing	en
heal.type	journalArticle	en
heal.identifier.primary	10.1080/02652030400019372	en
heal.identifier.secondary	http://dx.doi.org/10.1080/02652030400019372	en
heal.language	English	en
heal.publicationDate	2004	en
heal.abstract	The effect of storage at 5°C and of thermal processing by cooking at 100°C and sterilization at 121°C for 15 min on maneb residues in tomato homogenates was investigated. Remaining maneb and its toxic metabolite ethylenethiourea (ETU) were measured after each treatment by headspace gas chromatography with flame-photometric detection and by high-performance liquid chromatography with photo-diode array detection, respectively. No significant loss of maneb was observed during cold storage for up to 6 weeks, taking into account analytical variability. Conversely, thermal treatment resulted in substantial degradation of maneb with extensive conversion to ETU. After cooking, only 26±1% (±SE, n=8) of initial maneb residues remained in the samples, whilst the conversion to ETU was 28±1% (mol mol-1) (±SE, n=4). Sterilization eliminated the residues of the parent compound giving rise to conversion to ETU up to 32±1% (mol mol-1) (±SE, n=4). © 2004 Taylor & Francis Ltd.	en
heal.publisher	TAYLOR & FRANCIS LTD	en
heal.journalName	Food Additives and Contaminants	en
dc.identifier.doi	10.1080/02652030400019372	en
dc.identifier.isi	ISI:000226207200008	en
dc.identifier.volume	21	en
dc.identifier.issue	11	en
dc.identifier.spage	1083	en
dc.identifier.epage	1089	en