Zobrazeno 1 - 10
of 40
pro vyhledávání: '"D. J. Van Schalkwyk"'
Publikováno v:
SA Journal of Industrial Psychology, Vol 26, Iss 2, Pp 27-31 (2000)
Environmental health is one of the key areas in the Reconstruction and Development Programme in South Africa because of its close links with the primary prevention of disease. The possibility of individual differences between job-satisfied and job-di
Externí odkaz:
https://doaj.org/article/a309c4bdbf7a4cb0932662b500d62e93
Autor:
M. De Kock, Wentzel C. A. Gelderblom, Sonja Swanevelder, D. J. van Schalkwyk, S. Abel, M.C. Kew
Publikováno v:
Prostaglandins, Leukotrienes and Essential Fatty Acids. 81:391-399
Altered membrane integrity in hepatocellular carcinoma (HCC) tissue was indicated by an elevation in cholesterol and significant decrease in phosphatidylcholine (PC). The resultant decreased phosphatidylcholine/phosphatidylethanolamine (PC/PE) and in
Publikováno v:
Scopus-Elsevier
Three types of activated carbon (NORIT SA 4, NORIT SX 4 and NORIT CA 1) were investigated for their ability to reduce patulin levels in apple juice at various Brix levels and temperatures. The steam-activated carbons (NORIT SA 4 and NORIT SX 4) exhib
Publikováno v:
Toxicon. 39:969-972
Fumonisins occur widely around the world in maize products intended for human and animal consumption posing a health hazard. Direct measurement of fumonisins in physiological fluids as a biomarker of exposure is not practicable, however fumonisins di
Autor:
J V Seier, Gordon S. Shephard, P. W Snijman, D. J. Van Schalkwyk, Wentzel C. A. Gelderblom, Walter F. O. Marasas
Publikováno v:
Scopus-Elsevier
Environmental Health Perspectives
Environmental Health Perspectives
We conducted a chronic feeding study in vervet monkeys (Cercopithecus aethiops) over 13.5 years. The experimental design consisted of two dietary treatment groups, each including males and females, fed varying levels of culture material of Fusarium v
Autor:
D. J. van Schalkwyk, Pieter G. Thiel, S. Stockenström, P. W Snijman, Gordon S. Shephard, Eric W. Sydenham
Publikováno v:
Scopus-Elsevier
A liquid chromatographic (LC) method for simultaneous determination of fumonisins B1 (FB1), B2 (FB2), and B3 (FB3) in corn was subjected to a collaborative study involving 12 participants from 10 countries, in which the accuracy and reproducibility c
Autor:
Pieter G. Thiel, D. J. van Schalkwyk, G.S. Shephard, Klaus R. Koch, Eric W. Sydenham, W. F. O. Marasas
Publikováno v:
Journal of Agricultural and Food Chemistry. 38:1900-1903
Moldy and healthy corn samples were collected from two opposing human esophageal cancer prevalence areas of the Transkei, southern Africa, during 1985, and screened mycologically. The moldy corn samples were analyzed for the presence of several Fusar
Autor:
Wentzel C. A. Gelderblom, Y. Behrend, W. F. O. Marasas, J.F. Alberts, D. J. Van Schalkwyk, Pieter G. Thiel
Publikováno v:
Applied and Environmental Microbiology. 56:1729-1733
The kinetics of the production of fumonisin B1 (FB1) by Fusarium moniliforme MRC 826 in corn cultures was investigated as a function of fungal growth at various incubation temperatures. The growth rate of F. moniliforme, as measured by ergosterol con
Autor:
L. van der Westhuizen, Gordon S. Shephard, Pumza M. Gatyeni, Hester-Mari Burger, D. J. van Schalkwyk, John P. Rheeder, Walter F. O. Marasas, Nontuthuzelo I. M. Somdyala
Publikováno v:
Food additives and contaminants. 24(6)
The fumonisins are mycotoxins produced mainly by Fusarium verticillioides and F. proliferatum in maize, the predominant cereal staple for subsistence farming communities in southern Africa. In order to assess exposure to these mycotoxins in the Bizan
Publikováno v:
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association. 39(5)
The disruption in sphinganine (Sa) and sphingosine (So) concentrations in plasma and urine of vervet monkeys (Cercopithecus aethiops) was measured following a single gavage dose of either 1 (low dose) or 10 mg (high dose) fumonisin B(2) (FB(2))/kg bo