Cadmium, lead and mercury levels in feeding yeast produced in Czechoslovakia

Ninety-six samples of the feeding yeast known as VITEX were analyzed for Cd, Pb and Hg content during 1987–1989. Cadmium content ranged from 0.30 to 5.12 mg · kg −1, lead content from 0.21 to 3.01 mg · kg −,, and mercury content from 0.008 to 0.187 mg · kg −1. Our findings meet the current governmen...

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Bibliographic Details
Published in:The Science of the total environment 1992-04, Vol.114 (1-3), p.73-86
Main Authors: Cibulka, Jiří, Turecki, Tomáš, Miholová, Daniela, Mader, Pavel, Száková, Jiřina, Brabec, Marek
Format: Article
Language:English
Subjects:
ALIMENT POUR ANIMAUX
Animal Feed - analysis
Animals
ASTILLAS
CADMIO
CADMIUM
Cadmium - analysis
CONTROLE CONTINU
CSFR
Czechoslovakia
feeding yeast
FEEDS
LEAD
Lead - analysis
LEVADURA
LEVURE
MERCURE
MERCURIO
MERCURY
Mercury - analysis
MONITORING
PARTICULE DE BOIS
PIENSOS
PLOMB
PLOMO
RFCS
RFTS
Spectrophotometry, Atomic
VIGILANCIA
WOOD CHIPS
YEASTS
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Summary:Ninety-six samples of the feeding yeast known as VITEX were analyzed for Cd, Pb and Hg content during 1987–1989. Cadmium content ranged from 0.30 to 5.12 mg · kg −1, lead content from 0.21 to 3.01 mg · kg −,, and mercury content from 0.008 to 0.187 mg · kg −1. Our findings meet the current government standards (max. allowed Pb = 5.00, Cd = 0.50 and Hg = 0.100 mg · kg −1). only for lead, and with five exceptions, for mercury. With two exceptions, all cadmium levels found in the samples exceeded the limit. One raw material — the wood chips — was shown to be the main source of cadmium in the technological process. Relatively high Hg contents were measured in the wood chips (up to 0.155 mg · kg −1); the highest Hg level (1.105 mg · kg −1) however was found in a sample of KOH.
ISSN:0048-9697
1879-1026
DOI:10.1016/0048-9697(92)90415-O