Zobrazeno 1 - 10
of 107
pro vyhledávání: '"R. Münzner"'
Publikováno v:
Environmental Health Perspectives
We examined t-butylhydroquinone (t-BHQ) and t-butylquinone (t-BuQ), two of the major microsomal metabolites of the synthetic antioxidant butylated hydroxyanisole (BHA), for their ability to react with the xenobiotic arylamines aniline and N-methylani
Publikováno v:
Food Additives and Contaminants. 7:223-233
The reaction mixture and several products arising from the reaction of butylated hydroxyanisole (BHA) and nitrite in anaerobic aqueous acidic solution were separated and tested in the Salmonella mutagenicity test. Among the nine products separable by
Publikováno v:
Food and Chemical Toxicology. 28:397-401
Potassium sorbate and sodium sorbate were investigated for possible genotoxic actions using the Salmonella/mammalian-microsome test, HGPRT and sister chromatid exchange (SCE) test with Chinese hamster ovary cells, the micronucleus test on bone marrow
Autor:
R. Münzner, H.W. Renner
Publikováno v:
Mutation research. 262(4)
Possible antimutagenic actions of probiotics - mainly lactic acid bacteria - were examined using in vitro and in vivo test systems. In the Ames test with Salmonella typhimurium TA1538 beef extract and nitrosated beef extract were used as mutagens. L.
Autor:
R. Münzner, A.-E. Harmuth-Hoene
Publikováno v:
Annals of Nutrition and Metabolism. 22:368-373
Approximately 8–10 days after gum guar was added to the diet of rats, the total bacterial counts in their feces, in particular Clostridium and Lactobacillus, were increased, whereas the number of coliforms was reduced. In contrast to the long, slen
Publikováno v:
Chemosphere. 16:2479-2485
Some known reaction products of the two commonly used food additives, sulfite and nitrite, were examined for mutagenicity using the Salmonella/mammalian-microsome test. Potassium nitrosodisulfonate, potassium aminetrisulfonate and potassium hydroxyla
Autor:
H.W Renner, R Münzner
Publikováno v:
Toxicology. 10:141-150
Single cell protein (SCP)--a product containing 80% raw protein obtained from bacteria grown on a methanol substrate--was tested for mutagenicity in 5 in vivo tests in different mammalian species. The animals were fed either a standard laboratory die
Autor:
P. Prabhavathi, M. Mohanram, Thomas Pento, R. Münzner, A.-E. Harmuth-Hoene, Elsie M. Widdowson, Vinodini Reddy
Publikováno v:
Annals of Nutrition and Metabolism. 22:I-V
Autor:
R. Münzner, H.W. Renner
Publikováno v:
Toxicology. 26:173-178
Quinine hydrochloride was assayed for genotoxic activity by using 4 different test systems with distinct genetic endpoints. No indications for point mutations were observed in the Ames system. In 3 cytogenetic tests performed on small rodents, Chines
Publikováno v:
Environmental and Molecular Mutagenesis. 13:271-276
The azo dyes Sunset Yellow and Orange II were gavaged to rodent species to check bile, urine, and fecal extracts for possible mutagenic activity in the Ames test or in bone marrow cells for clastogenicity using cytogenetic test systems. After oral ap