Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Eric W. Sydenham"'
Autor:
Gordon S. Shephard, Sonja Stockenström, Eric W. Sydenham, J.P. Rheeder, Marthinus J. van der Merwe, and Walter F. O. Marasas
Publikováno v:
Journal of Agricultural and Food Chemistry. 45:4004-4010
Fusarium globosum Rheeder, Marasas et Nelson is a recently described species originally isolated from corn kernels harvested in the Transkei region of South Africa. On the basis of morphological criteria, F. globosum is closely related to other commo
Autor:
M. Schlechter, Norma L. Brown, Walter F. O. Marasas, Eric W. Sydenham, Hester F. Vismer, John P. Rheeder
Publikováno v:
Food Additives and Contaminants. 14:429-434
Patulin, a secondary metabolite produced by Penicillium expansum and some other fungal species, is a common contaminant of ripened apples used for the production of apple juice concentrates. The limited availability of suitable storage facilities may
Publikováno v:
Journal of AOAC INTERNATIONAL. 79:1365-1380
Fusarium toxins are a major group of secondary metabolites, produced by several species, that may contaminate food cereals and animal feeds. We describe results of a study in which a number of physicochemical constants for 12 important Fusarium mycot
Autor:
Pieter G. Thiel, S. Stockenström, M. Bruno Doko, Charles B. Bird, John P. Rheeder, Eric W. Sydenham, Brinton M. Miller
Publikováno v:
Journal of Food Protection. 59:893-897
The performance of an experimental polyclonal antibody (PAb)-based competitive direct enzyme-linked immunosorbent assay (CD-ELISA) developed for the analysis of fumonisins in corn was assessed by comparison with an established high-performance liquid
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
Publikováno v:
Journal of Agricultural and Food Chemistry. 44:3240-3243
The natural co-occurrence of fumonisin B1 (FB1), fumonisin B2 (FB2), fumonisin B3 (FB3), and zearalenone was investigated in 40 randomly selected cereals and cereal-based commodities collected in 1994 from Botswana, Kenya, Malawi, Mozambique, South A
Publikováno v:
Journal of Agricultural and Food Chemistry. 43:2400-2405
The natural occurrence in corn of carcinogenic mycotoxins, the fumonisins, has prompted the development of potential decontamination procedures. Chemical treatment of fumonisin B 1 (FB 1 )-contaminated corn with calcium hydroxide [Ca(OH) 2 ] results
Autor:
Walter F. O. Marasas, Hester F. Vismer, M. Schlechter, Eric W. Sydenham, Liana van der Westhuizen, John P. Rheeder, Norma L. Brown
Publikováno v:
Food Control. 6:195-200
Patulin is a secondary metabolite produced by a wide range of fungi including Penicillium expansum, a common contaminant of apples. Patulin is reputed to be a mutagen and recommendations have been made that levels should not exceed 50 ng g in apple j
Publikováno v:
Food and Chemical Toxicology. 33:591-595
Fumonisin B2 (FB2), a secondary metabolite of the fungus Fusarium moniliforme, was administered at a dose of 7.5 mg/kg body weight to male BD IX rats by ip injection or by gavage. FB2 was rapidly absorbed from the peritoneum, its level in plasma reac
Autor:
Eric W. Sydenham, Gordon S. Shephard, Klaus R. Koch, Walter F. O. Marasas, S. Stockenström, Pieter G. Thiel
Publikováno v:
Journal of Agricultural and Food Chemistry. 43:1198-1201
Studies have shown that fumonisin B 1 (FB 1 ) may undergo alkaline hydrolysis to yield its aminopentol (AP 1 ) and tricarballylic acid moieties. Treatment of fumonisin-contaminated ground corn with 0.1 M calcium hydroxide, over a period of 24 h at ro