Surveillance of Aflatoxin and Microbiota Related to Brewer's Grain Destined for Swine Feed in Argentina
Córdoba province in the center of Argentina is an important area of swine production. The use of industry by-product (brewer's grain) as feedstuff for swine is a regular practice and increases animal performance on these animals production. The occurrence of aflatoxin contamination is global, c...
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| Format: | Article |
| Language: | English |
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Wiley
2011-01-01
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| Series: | Veterinary Medicine International |
| Online Access: | http://dx.doi.org/10.4061/2011/912480 |
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| author | Gisela A. Gerbaldo Carina M. Pereyra Lilia R. Cavaglieri Francisco Ruiz Liliana Pascual Ana M. Dalcero Isabel L. Barberis |
| author_facet | Gisela A. Gerbaldo Carina M. Pereyra Lilia R. Cavaglieri Francisco Ruiz Liliana Pascual Ana M. Dalcero Isabel L. Barberis |
| author_sort | Gisela A. Gerbaldo |
| collection | DOAJ |
| description | Córdoba province in the center of Argentina is an important area of swine production. The use of industry by-product (brewer's grain) as feedstuff for swine is a regular practice and increases animal performance on these animals production. The occurrence of aflatoxin contamination is global, causing severe problems especially in developing countries. No reports on aflatoxin B1 production, micoflora, and potential aflatoxin B1 producing microorganism from brewer's grain are available. The aims of this study were (1) to isolate the microbiota species from brewer's grain, (2) to determine aflatoxin B1 natural contamination levels, and (3) to determine the ability of Aspergillus section Flavi isolates to produce aflatoxins in vitro. Physical properties, total fungal counts, lactic acid bacteria, and fungal genera distribution were determined on this substrate. In 65% of the samples, fungal counts were higher than recommended by GMP, and lactic bacterium counts ranged from 1.9×105 to 4.4×109 CFU g−1. Aspergillus spp. prevailed over other fungal genera. Aspergillus flavus was the prevalent species followed by A. fumigatus. Aflatoxin B1 levels in the samples were higher than the recommended limits (20 ng g−1) for complementary feedstuffs. Several Aspergillus section Flavi strains were able to produce aflatoxin B1 in vitro. Inadequate storage conditions promote the proliferation of mycotoxin-producing fungal species. Regular monitoring of feeds is required in order to prevent chronic and acute toxic syndromes related to this kind of contamination. |
| format | Article |
| id | doaj-art-ebbc4c40c76b42a7bfdb9df18d4ddbae |
| institution | Kabale University |
| issn | 2042-0048 |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Veterinary Medicine International |
| spelling | doaj-art-ebbc4c40c76b42a7bfdb9df18d4ddbae2025-02-03T05:52:10ZengWileyVeterinary Medicine International2042-00482011-01-01201110.4061/2011/912480912480Surveillance of Aflatoxin and Microbiota Related to Brewer's Grain Destined for Swine Feed in ArgentinaGisela A. Gerbaldo0Carina M. Pereyra1Lilia R. Cavaglieri2Francisco Ruiz3Liliana Pascual4Ana M. Dalcero5Isabel L. Barberis6Departamento de Microbiología e Inmunología, Universidad Nacional de Río Cuarto, Ruta 36 km. 601. (5800), X5804 BYA Río Cuarto, Córdoba, ArgentinaDepartamento de Microbiología e Inmunología, Universidad Nacional de Río Cuarto, Ruta 36 km. 601. (5800), X5804 BYA Río Cuarto, Córdoba, ArgentinaDepartamento de Microbiología e Inmunología, Universidad Nacional de Río Cuarto, Ruta 36 km. 601. (5800), X5804 BYA Río Cuarto, Córdoba, ArgentinaDepartamento de Microbiología e Inmunología, Universidad Nacional de Río Cuarto, Ruta 36 km. 601. (5800), X5804 BYA Río Cuarto, Córdoba, ArgentinaDepartamento de Microbiología e Inmunología, Universidad Nacional de Río Cuarto, Ruta 36 km. 601. (5800), X5804 BYA Río Cuarto, Córdoba, ArgentinaDepartamento de Microbiología e Inmunología, Universidad Nacional de Río Cuarto, Ruta 36 km. 601. (5800), X5804 BYA Río Cuarto, Córdoba, ArgentinaDepartamento de Microbiología e Inmunología, Universidad Nacional de Río Cuarto, Ruta 36 km. 601. (5800), X5804 BYA Río Cuarto, Córdoba, ArgentinaCórdoba province in the center of Argentina is an important area of swine production. The use of industry by-product (brewer's grain) as feedstuff for swine is a regular practice and increases animal performance on these animals production. The occurrence of aflatoxin contamination is global, causing severe problems especially in developing countries. No reports on aflatoxin B1 production, micoflora, and potential aflatoxin B1 producing microorganism from brewer's grain are available. The aims of this study were (1) to isolate the microbiota species from brewer's grain, (2) to determine aflatoxin B1 natural contamination levels, and (3) to determine the ability of Aspergillus section Flavi isolates to produce aflatoxins in vitro. Physical properties, total fungal counts, lactic acid bacteria, and fungal genera distribution were determined on this substrate. In 65% of the samples, fungal counts were higher than recommended by GMP, and lactic bacterium counts ranged from 1.9×105 to 4.4×109 CFU g−1. Aspergillus spp. prevailed over other fungal genera. Aspergillus flavus was the prevalent species followed by A. fumigatus. Aflatoxin B1 levels in the samples were higher than the recommended limits (20 ng g−1) for complementary feedstuffs. Several Aspergillus section Flavi strains were able to produce aflatoxin B1 in vitro. Inadequate storage conditions promote the proliferation of mycotoxin-producing fungal species. Regular monitoring of feeds is required in order to prevent chronic and acute toxic syndromes related to this kind of contamination.http://dx.doi.org/10.4061/2011/912480 |
| spellingShingle | Gisela A. Gerbaldo Carina M. Pereyra Lilia R. Cavaglieri Francisco Ruiz Liliana Pascual Ana M. Dalcero Isabel L. Barberis Surveillance of Aflatoxin and Microbiota Related to Brewer's Grain Destined for Swine Feed in Argentina Veterinary Medicine International |
| title | Surveillance of Aflatoxin and Microbiota Related to Brewer's Grain Destined for Swine Feed in Argentina |
| title_full | Surveillance of Aflatoxin and Microbiota Related to Brewer's Grain Destined for Swine Feed in Argentina |
| title_fullStr | Surveillance of Aflatoxin and Microbiota Related to Brewer's Grain Destined for Swine Feed in Argentina |
| title_full_unstemmed | Surveillance of Aflatoxin and Microbiota Related to Brewer's Grain Destined for Swine Feed in Argentina |
| title_short | Surveillance of Aflatoxin and Microbiota Related to Brewer's Grain Destined for Swine Feed in Argentina |
| title_sort | surveillance of aflatoxin and microbiota related to brewer s grain destined for swine feed in argentina |
| url | http://dx.doi.org/10.4061/2011/912480 |
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