Journal of environmental science and health. Part. B, Pesticides, food contaminants, and agricultural wastes.
Publisher:
Dekker.. Abingdon, Oxford : Taylor & Francis (2005)
Frequency: Monthly, 2013-
Country: England
Language: English
Start Year:1976 -
Identifiers
| ISSN: | 0360-1234 (Print) 1532-4109 (Electronic) 0360-1234 (Linking) |
| NLM ID: | 7607167 |
| (OCoLC): | 02093648 |
| (DNLM): | J20200000(s) |
| Coden: | JPFCD2 |
| LCCN: | 76643493 |
| Classification: | W1 JO644BI |
Residues of antibiotics in yeasts from ethanol production: a possible contamination route for feedingstuffs. Sugarcane yeast and brewer's yeast from ethanol production are widely used as ingredients of animal feed formulations in Brazil. To avoid the contamination of the must in ethanol production refineries, the use of antibiotics is one of the main preventive treatments. Thus, there is a risk of antibiotic residues carry over from yeast to animal feed. This unintentional addition of antibiotics can produce non-compliant feed products, due to regulatory aspects and their toxicity for animals. The results of an exploratory program to assess the occurrence of over 60 antibiotics and other pharmaceutic...
Stability of pentobarbital in soil. Intravenous injection of barbiturates, particularly pentobarbital (5-ethyl-5-pentan-2-yl-1,3-diazinane-2,4,5-trione), is a widely used method to euthanize large animals such as horses. However, one concern with this method is the fate of pentobarbital after the disposal of the carcass. As tissues decompose, pentobarbital may leach into the soil and from there migrate to groundwater. A method using methanol extraction, solid phase concentration, and liquid chromatography (LC/MS) has been developed to measure pentobarbital in soils. Recovery of pentobarbital from soil averaged approximately 85% ...
Kinetic and structural relationships of transition monomeric and oligomeric carboxyl- and choline-esterases. The kinetic and structural relationships of eight electrophoretically pure mammalian serum and liver serine carboxylesterases (CE) and cholinesterases (ChE) have been studied. Eight CE's and ChE's, which were fully resolved but only partially purified, provided additional information. Five of the electrophoretically pure esterases were monomeric, and of these, four belonged to a new and widely distributed class. These four monomeric esterases hydrolyzed choline esters, but at widely differing rates. Thus two were termed monomeric butyrylcholinesterases, mBuChE I and II, and two were monomeric ...