Gliotoxin contamination in and pre- and postfermented corn, sorghum and wet brewer's grains silage in Sao Paulo and Rio de Janeiro State, Brazil
Aims: The aim of this study was to determine total fungal counts and the relative density of Aspergillus fumigatus and related species in silage samples intended for bovines before and after fermentation as well as to monitor the natural occurrence of gliotoxin in silage samples (pre- and postfermen...
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2012
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| LEADER | 15418caa a22016697a 4500 | ||
|---|---|---|---|
| 001 | PAPER-9669 | ||
| 003 | AR-BaUEN | ||
| 005 | 20230518203938.0 | ||
| 008 | 140217s2012 xx ||||fo|||| 00| 0 eng|d | ||
| 024 | 7 | |2 scopus |a 2-s2.0-84859609079 | |
| 024 | 7 | |2 pubmed |a 22372472 | |
| 024 | 7 | |2 cas |a gliotoxin, 37273-88-4, 67-99-2; Gliotoxin, 67-99-2 | |
| 040 | |a Scopus |b spa |c AR-BaUEN |d AR-BaUEN | ||
| 030 | |a JAMIF | ||
| 100 | 1 | |a Keller, L.A.M. | |
| 245 | 1 | 0 | |a Gliotoxin contamination in and pre- and postfermented corn, sorghum and wet brewer's grains silage in Sao Paulo and Rio de Janeiro State, Brazil |
| 260 | |c 2012 | ||
| 270 | 1 | 0 | |m Chiacchiera, S.M.; Departamento de Química, Universidad Nacional de Río Cuarto, Ruta 36 Km, 601 (5800) Río Cuarto, Córdoba, Argentina; email: schiacchiera@exa.unrc.edu.ar |
| 506 | |2 openaire |e Política editorial | ||
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| 504 | |a Lewis, R.E., Wiederhold, N.P., Lionakis, M.S., Prince, R.A., Kontoyiannis, D.P., Frequency and species distribution of gliotoxin-producing Aspergillus isolates recovered from patients at a tertiary-care cancer center (2005) J Clin Microbiol, 43, pp. 6120-6122 | ||
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| 520 | 3 | |a Aims: The aim of this study was to determine total fungal counts and the relative density of Aspergillus fumigatus and related species in silage samples intended for bovines before and after fermentation as well as to monitor the natural occurrence of gliotoxin in silage samples (pre- and postfermentation). Methods and methods: The survey was performed in farms located in São Paulo and Rio de Janeiro States in Brazil. In addition, the ability of A. fumigatus strains and related species strains to produce gliotoxin was also evaluated. A total of 300 samples were taken, immediately after opening of the silo (3-5 months) and during the ensiling period. Fungal counts were done by the surface-spread method. Gliotoxin production ability of isolates and natural contamination were determined by HPLC. Results: All postfermented samples had a total number of moulds exceeding 1 × 10 4 CFU g -1, with Aspergillus sp. as the most prevalent genus. Frequency of strains, among A. fumigatus and related species, was able to produce gliotoxin was similar in pre- and postfermented samples, except for sorghum, which showed differences between both kinds of samples. The highest toxin levels were produced by strains isolated from postfermented samples. More than 50% of the samples showed gliotoxin contamination levels that exceeded concentrations known to induce immunosuppressive and apoptotic effects in cells. Conclusions: The present data suggest that care should be taken because gliotoxin contamination in feedstuffs could affect productivity and also present a health risk for herds. Significance and Impact of the Study: Gliotoxin was found at quite important concentrations levels in pre- and postfermented substrates and its presence could therefore probably affect the productivity and health of herds. Current conservation and management practices do not avoid contamination with A. fumigatus on silage. Therefore, farm workers should be adequately protected during its handling. © 2012 The Authors. Journal of Applied Microbiology © 2012 The Society for Applied Microbiology. |l eng | |
| 593 | |a Departamento de Microbiologia e Imunología Veterinária, Universidade Federal Rural do Rio de Janeiro, Instituto de Veterinária, Seropédica, Rio de Janeiro, Brazil | ||
| 593 | |a Conselho Nacional de Pesquisas Científicas (CNPq), Belo Horizonte, Brazil | ||
| 593 | |a Departamento de Química, Facultad de Ciencias Exactas Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Córdoba, Argentina | ||
| 593 | |a Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina | ||
| 593 | |a Departamento de Microbiología e Inmunología, Facultad de Ciencias Exactas Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Córdoba, Argentina | ||
| 593 | |a Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Buenos Aires, Argentina | ||
| 690 | 1 | 0 | |a ASPERGILLUS FUMIGATUS AND RELATED SPECIES |
| 690 | 1 | 0 | |a FUNGI |
| 690 | 1 | 0 | |a MYCOTOXIN PRODUCTION |
| 690 | 1 | 0 | |a SILAGE |
| 690 | 1 | 0 | |a GLIOTOXIN |
| 690 | 1 | 0 | |a AGRICULTURAL WORKER |
| 690 | 1 | 0 | |a CATTLE |
| 690 | 1 | 0 | |a CONSERVATION MANAGEMENT |
| 690 | 1 | 0 | |a FERMENTATION |
| 690 | 1 | 0 | |a FUNGUS |
| 690 | 1 | 0 | |a HEALTH RISK |
| 690 | 1 | 0 | |a MAIZE |
| 690 | 1 | 0 | |a MANAGEMENT PRACTICE |
| 690 | 1 | 0 | |a SILAGE |
| 690 | 1 | 0 | |a SORGHUM |
| 690 | 1 | 0 | |a SUBSTRATE |
| 690 | 1 | 0 | |a TOXIN |
| 690 | 1 | 0 | |a APOPTOSIS |
| 690 | 1 | 0 | |a ARTICLE |
| 690 | 1 | 0 | |a ASPERGILLUS FUMIGATUS |
| 690 | 1 | 0 | |a BRAZIL |
| 690 | 1 | 0 | |a CATTLE FARMING |
| 690 | 1 | 0 | |a COLONY FORMING UNIT |
| 690 | 1 | 0 | |a COW |
| 690 | 1 | 0 | |a FERMENTATION |
| 690 | 1 | 0 | |a FOOD CONTAMINATION |
| 690 | 1 | 0 | |a FUNGAL STRAIN |
| 690 | 1 | 0 | |a FUNGUS ISOLATION |
| 690 | 1 | 0 | |a GRAIN |
| 690 | 1 | 0 | |a HEALTH HAZARD |
| 690 | 1 | 0 | |a HEALTH SURVEY |
| 690 | 1 | 0 | |a HERD |
| 690 | 1 | 0 | |a HIGH PERFORMANCE LIQUID CHROMATOGRAPHY |
| 690 | 1 | 0 | |a MAIZE |
| 690 | 1 | 0 | |a MOULD |
| 690 | 1 | 0 | |a NONHUMAN |
| 690 | 1 | 0 | |a SILAGE |
| 690 | 1 | 0 | |a SORGHUM |
| 690 | 1 | 0 | |a TOXIN ANALYSIS |
| 690 | 1 | 0 | |a ANIMAL FEED |
| 690 | 1 | 0 | |a ANIMALS |
| 690 | 1 | 0 | |a ASPERGILLUS FUMIGATUS |
| 690 | 1 | 0 | |a BRAZIL |
| 690 | 1 | 0 | |a CATTLE |
| 690 | 1 | 0 | |a CEREALS |
| 690 | 1 | 0 | |a COLONY COUNT, MICROBIAL |
| 690 | 1 | 0 | |a FERMENTATION |
| 690 | 1 | 0 | |a FOOD CONTAMINATION |
| 690 | 1 | 0 | |a GLIOTOXIN |
| 690 | 1 | 0 | |a SILAGE |
| 690 | 1 | 0 | |a SORGHUM |
| 690 | 1 | 0 | |a ZEA MAYS |
| 690 | 1 | 0 | |a BRAZIL |
| 690 | 1 | 0 | |a RIO DE JANEIRO [BRAZIL] |
| 690 | 1 | 0 | |a SAO PAULO [BRAZIL] |
| 690 | 1 | 0 | |a ASPERGILLUS FUMIGATUS |
| 690 | 1 | 0 | |a ASPERGILLUS SP. |
| 690 | 1 | 0 | |a FUNGI |
| 690 | 1 | 0 | |a ZEA MAYS |
| 700 | 1 | |a Keller, K.M. | |
| 700 | 1 | |a Monge, M.P. | |
| 700 | 1 | |a Pereyra, C.M. | |
| 700 | 1 | |a Alonso, V.A. | |
| 700 | 1 | |a Cavaglieri, L.R. | |
| 700 | 1 | |a Chiacchiera, S.M. | |
| 700 | 1 | |a R Rosa, C.A. | |
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