Toxins In Food
Mostrando 1-12 de 67 artigos, teses e dissertações.
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1. A comparative study of procedures for binding of aflatoxin M1 to Lactobacillus rhamnosus GG
ABSTRACT Several strains of lactic acid bacteria (LAB), frequently used in food fermentation and preservation, have been reported to bind different types of toxins in liquid media. This study was carried out to investigate the effect of different concentrations of Lactobacillus rhamnosus GG (ATCC 53103) to bind aflatoxin M1 (AFM1) in liquid media. AFM1 bindi
Braz. J. Microbiol.. Publicado em: 2018-03
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2. Mycotoxicological and palynological profiles of commercial brands of dried bee pollen
Abstract Pollen is used in the human diet as a food supplement because of its high nutritional value; however, this product is prone to fungal contamination that could potentially generate toxins that are harmful to human health. This study aimed to verify the floral diversity of commercial brands of bee pollen and their mycotoxicological safety for human co
Braz. J. Microbiol.. Publicado em: 09/10/2015
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3. Clonal profile, virulence and resistance of Staphylococcus aureus isolated from sheep milk
The objective of this study was to characterize the clonal profile, virulence factors and antimicrobial resistance, particularly oxacillin resistance, of Staphylococcus aureus isolated from sheep milk. Milk samples were collected from all teats for the California Mastitis Test (CMT), somatic cell count, identification of S. aureus, investigation in these str
Braz. J. Microbiol.. Publicado em: 2015-06
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4. Can Ergosterol Be an Indicator of Fusarium Fungi and Mycotoxins in Cereal Products?
Presence of fungi in food and feed products is a major problem. Fungi synthesize a large number of secondary metabolites including particularly harmful mycotoxins. They can be produced in plant tissues and are commonly found all over the world in many products including cereals. A total of 44 samples were taken for identification of ergosterol - the potentia
J. Braz. Chem. Soc.. Publicado em: 2015-04
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5. Survey of molds, yeast and Alicyclobacillus spp. from a concentrated apple juice productive process
Bacteria and molds may spoil and/or contaminate apple juice either by direct microbial action or indirectly by the uptake of metabolites as off-flavours and toxins. Some of these microorganisms and/or metabolites may remain in the food even after extensive procedures. This study aim to identify the presence of molds (including heat resistant species) and Ali
Braz. J. Microbiol.. Publicado em: 2014
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6. Gene detection and toxin production evaluation of hemolysin BL of Bacillus cereus isolated from milk and dairy products marketed in Brazil
Bacillus cereusis an ubiquitous, spore-forming bacteria that can survive pasteurization and the majority of the heating processes used in the dairy industry. Besides, it is a pathogen responsible for different types of food poisoning. One type of foodborne disease caused by B.cereusis the diarrheal syndrome, which is caused by the ingestion of vegetative cel
Braz. J. Microbiol.. Publicado em: 2013-12
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7. Avaliação de métodos e ocorrência de Clostridium difficile em carnes / Evaluation of methods and occurrence of Clostridium difficile in meats
Clostridium difficile is an anaerobic bacillus responsible for intestinal deseases in individuals previouslly treated with antibiocs, who can manifest from a mild diarrhea to severe cases of pseudomembranous colitis, mainly caused by toxins A (TcdA) and B (TcdB). The infections are related to contamination in hospitals, but recent researches sugests a possib
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/04/2012
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8. Produtividade e qualidade da forragem e do feno de capim tifton 85 adubado com N e colhido em duas idades de rebrota / Productivity and quality of forage and hay of Tifton 85 grass fertilized with N and harvested at two ages of regrowth
Three experiments were conducted with Tifton 85 grass. The first objective was to evaluate the structural characteristics and bromatological composition of forage under effect of different doses of nitrogen (0, 25, 50, 75 and 100 kg N ha-1 in each cut) and two ages of regrowth (28 and 35 days). The experimental design was a randomized block design with 5x2 f
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/12/2011
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9. Efeito do ácido lático sobre as características microbiológicas, físico-químicas e sensoriais na carne do sol
The dried beef is a food traditionally eaten by Northeastern and has an extensive trade in the city of Natal-RN. It is usually produced in an empirical manner, without any standardization in production. Characterized as partially dehydrated meat product, so that the activity of water present is not sufficient to prevent microbial growth, degradation or the p
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/11/2011
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10. Biologia de Semiaphis dauci (Fabricius, 1775) e Aulacorthum solani (Kaltenbach, 1843) (Hemiptera: Aphididae) associados à Arracacia xanthorrhiza (Bancroft, 1825) / Semiaphis dauci (Fabricius, 1775) and Aulacorthum solani (Kaltenbach, 1843) (Hemiptera: Aphididae) associated with Arracacia xanthorrhiza (Bancroft, 1825)
The aphids are limiting for various crops, and in the case of the horticulture crops, it has been a problem for the cultivation of Arracacia xanthorrhiza (Bancroft, 1825), the arracacha. This plant, of Andean origin, has been well adapted to these climatic conditions of Southeast Brazil and conquered many consumers, currently representing an important food s
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/09/2011
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11. Efeito da alta pressão hidrostática em Aeromonas hydrophila AH 191 crescida em leite e em meio de cultura / Effect of high hydrostatic pressure in Aeromonas hydrophila AH 191 grown in milk and culture medium
Exposure to high pressure is an efficient method for bacterial inactivation, which is important for the food sterilization. We examine the inactivation by high hydrostatic pressure in A. hydrophila AH 191, producer of aerolysin, which has cytotoxic, enterotoxic and hemolytic activities. A 30 min treatment at 250 MPa (25 °C in 0.1 M PBS, pH 7,4) resulted in
Publicado em: 2010
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12. Pesquisa de genes de resistência a antimicrobianos beta-lactâmicos e de enterotoxina em cepas de Staphylococcus aureus presentes em amostras de alimentos / Search of antimicrobial beta-lactam resistance genes and enterotoxin genes in Staphylococcus aureus strains present in food samples
Introduction: Staphylococcus aureus are a bacterium that causes various types of diseases. There are two major aggravating to its presence: the toxins production and antimicrobial resistance. S. aureus produce heat-labile enterotoxina that, when present in food, can lead to poisoning of those who consume. This specie is also known to easily respond adaptivel
Publicado em: 2010