Food Contamination
Mostrando 37-48 de 323 artigos, teses e dissertações.
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37. Occurrence of non-O157 Shiga toxin-encoding Escherichia coli in artisanal mozzarella cheese in Brazil: risk factor associated with food workers
Abstract Mozzarella cheese is considered a safe food due to the high temperature treatment used in the traditional process of stretching into hot water; however, a post-process contamination during the cheese manufacture or during the processing (before distribution) could occur. This study investigated the occurrence of Shiga toxin-encoding Escherichia coli
Food Sci. Technol. Publicado em: 30/06/2016
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38. Solubility of Heavy Metals/Metalloid on Multi-Metal Contaminated Soil Samples from a Gold Ore Processing Area: Effects of Humic Substances
ABSTRACT Bioavailability of heavy metals at contaminated sites is largely controlled by the physicochemical properties of the environmental media such as dissolved organic matter, hydroxides and clay colloids, pH, soil cation exchange capacity and oxidation-reduction potential. The aim of this study was to investigate soil pH and heavy metal solubility effec
Rev. Bras. Ciênc. Solo. Publicado em: 30/06/2016
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39. Computer vision system approach in colour measurements of foods: Part II. validation of methodology with real foods
Abstract The colour of food is one of the most important factors affecting consumers’ purchasing decision. Although there are many colour spaces, the most widely used colour space in the food industry is L*a*b* colour space. Conventionally, the colour of foods is analysed with a colorimeter that measures small and non-representative areas of the food and t
Food Sci. Technol. Publicado em: 14/06/2016
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40. Occurrence and antimicrobial resistance patterns of Listeria monocytogenes isolated from vegetables
Abstract Although the consumption of fresh and minimally processed vegetables is considered healthy, outbreaks related to the contamination of these products are frequently reported. Among the food-borne pathogens that contaminate vegetables is Listeria monocytogenes, a ubiquitous organism that exhibits the ability to survive and multiply at refrigerated tem
Braz. J. Microbiol.. Publicado em: 2016-06
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41. Evaluation of Disinfectants Used in Pre-Chilling water Tanks of Poultry Processing Plants
ABSTRACT In poultry processing plants, disinfectants are often added to pre-chilling water tanks to reduce microbial contamination. The present study aimed at evaluating the effect of five disinfectants (acidified sodium chlorite, alkyl dimethyl benzyl ammonium chloride, chlorine dioxide, peracetic acid, and sodium hypochlorite) on the populations of food qu
Rev. Bras. Cienc. Avic.. Publicado em: 2016-06
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42. Extraction of Trypanosoma cruzi DNA from food: a contribution to the elucidation of acute Chagas disease outbreaks
Abstract: INTRODUCTION: Before 2004, the occurrence of acute Chagas disease (ACD) by oral transmission associated with food was scarcely known or investigated. Originally sporadic and circumstantial, ACD occurrences have now become frequent in the Amazon region, with recently related outbreaks spreading to several Brazilian states. These cases are associate
Rev. Soc. Bras. Med. Trop.. Publicado em: 2016-04
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43. An ecological and comparative analysis of parasites in juvenile Mugil liza (Pisces, Mugilidae) from two sites in Samborombón bay, Argentina
ABSTRACT Mugil liza Valenciennes, 1836 is an economically important food fish and has been recommended for aquaculture in South America. A total of 278 fishes were collected in the spring and summer of 2009 and 2010. These fish were sorted into sample groups according to their size class. We used Bayesian statistics and 95% credible intervals for each parame
Iheringia, Sér. Zool.. Publicado em: 2015-12
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44. 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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45. Salmonella Alachua: causative agent of a foodborne disease outbreak
Objectives: The aim of this study is to report the occurrence of the first outbreak of food poisoning caused by SalmonellaAlachua in Brazil, as well as the antimicrobial susceptibility and the genetic relatedness of SalmonellaAlachua strains isolated from clinical and food samples.Material and methods: To elucidate the outbreak, an epidemiological investigat
Braz J Infect Dis. Publicado em: 2015-06
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46. Detection of exopolysaccharide production and biofilm-related genes in Staphylococcus spp. isolated from a poultry processing plant
Staphylococcus spp. can survive in biofilms for long periods of time, and they can be transferred from one point to another and cause environmental contamination in food processing. The aim of this study was to detect Staphylococcus strains isolated from a poultry processing plant by the presence of adhesion genes and the phenotypic production of exopolysacc
Food Sci. Technol. Publicado em: 2014-12
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47. Ability of a Lactobacillus rhamnosus strain cultured in milk whey based medium to bind aflatoxin B1
This study aimed to compare Lactobacillus rhamnosus growth in MRS (de Man, Rogosa and Sharpe) broth and a culture medium containing milk whey (MMW) and to evaluate aflatoxin B1 (AFB1) adsorption capacity by bacterial cells produced in both culture media. L. rhamnosus cells were cultivated in MRS broth and MMW (37 °C, 24 hours), and bacterial cell concentrat
Food Sci. Technol. Publicado em: 2014-09
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48. Health risk assessment of heavy metals in vegetables grown around battery production area
Battery production is one of the main sources of heavy metals that present great harm to human health even in low concentrations. Chromium (Cr), Cadmium (Cd) and Lead (Pb) were measured in edible portions of vegetables and soils around a battery production area in China, and the potential health risk of heavy metal contamination to the local population via v
Sci. agric. (Piracicaba, Braz.). Publicado em: 2014-04