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https://www.readbyqxmd.com/read/28649235/detection-of-mycobacteria-by-culture-and-dna-based-methods-in-animal-derived-food-products-purchased-at-spanish-supermarkets
#1
Iker A Sevilla, Elena Molina, Maitane Tello, Natalia Elguezabal, Ramón A Juste, Joseba M Garrido
Mycobacteria include obligate and opportunistic pathogens that cause significant human and animal disease. The burden of tuberculosis has been largely reduced in developed territories but remains a huge problem worldwide. The significance of nontuberculous mycobacteria is growing considerably, especially in developed regions with higher life expectancy and more therapy-related immunosuppressed individuals. Due to their robustness mycobacteria can contaminate animal products by direct transmission from infected individuals or by environmental contamination during processing...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28631591/comparative-evaluation-of-veriflow-%C3%A2-listeria-species-to-usda-culture-based-method-for-the-detection-of-listeria-spp-in-food-and-environmental-samples
#2
Adam C Joelsson, Shawn P Terkhorn, Ashley S Brown, Amrita Puri, Benjamin J Pascal, Zara E Gaudioso, Nicholas A Siciliano
Veriflow(®)Listeria species (Veriflow LS) isa molecular-based assay for the presumptive detection of Listeria spp. from environmental surfaces (stainless steel, sealed concrete, plastic, and ceramic tile) and ready-to-eat (RTE) food matrixes (hot dogs and deli meat). The assay utilizes a PCR detection method coupled with a rapid, visual, flow-based assay that develops in 3 min post-PCR amplification and requires only a 24 h enrichment for maximum sensitivity. The Veriflow LS system eliminates the need for sample purification, gel electrophoresis, or fluorophore-based detection of target amplification and does not require complex data analysis...
June 20, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28631590/comparative-evaluation-of-veriflow-%C3%A2-salmonella-species-to-usda-and-fda-culture-based-methods-for-the-detection-of-salmonella-spp-in-food-and-environmental-samples
#3
Amrita Puri, Adam C Joelsson, Shawn P Terkhorn, Ashley S Brown, Zara E Gaudioso, Nicholas A Siciliano
Veriflow(®)Salmonella species (Veriflow SS)is a molecular-based assay for the presumptive detection of Salmonella spp. from environmental surfaces (stainless steel, sealed concrete, plastic, and ceramic tile), dairy (2% milk), raw meat (20% fat ground beef), chicken carcasses, and ready-to-eat (RTE) food (hot dogs). The assay utilizes a PCR detection method coupled with a rapid, visual, flow-based assay that develops in 3 min post-PCR amplification and requires only an 18 h enrichment for maximum sensitivity...
June 20, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28611753/differential-survival-of-hyper-aerotolerant-campylobacter-jejuni-under-different-gas-conditions
#4
Euna Oh, Lynn M McMullen, Linda Chui, Byeonghwa Jeon
Campylobacter jejuni accounts for a significant number of foodborne illnesses around the world. C. jejuni is microaerophilic and typically does not survive efficiently in oxygen-rich conditions. We recently reported that hyper-aerotolerant (HAT) C. jejuni are highly prevalent in retail poultry meat. To assess the capabilities of HAT C. jejuni in foodborne transmission and infection, in this study, we investigated the prevalence of virulence genes in HAT C. jejuni and the survival in poultry meat in atmosphere at a refrigeration temperature...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28601158/effect-of-corifollitropin-alfa-supplemented-with-or-without-lh-on-ovarian-stimulation-and-embryo-viability-in-rabbit
#5
María Pilar Viudes-de-Castro, Francisco Marco-Jiménez, José Isaí Cedano-Castro, José Salvador Vicente
There is increasing interest in using rabbits for research as a laboratory model as well as for industrial production of meat, wool and fur. Superovulation in animals is used to produce a maximum number of transferable embryos per donor, in order to either support genetic improvement programs, ex situ conservation or to optimize other biotechnologies. Over time, the use of this biotechnology has shown variable outcomes as a consequence of several factors, such as the origin of exogenous hormone, posology and the effect of gonadotropins used simultaneously, the donor and the environment...
August 2017: Theriogenology
https://www.readbyqxmd.com/read/28591268/diagnosis-of-mycobacteria-in-bovine-milk-an-overview
#6
Carmen Alicia Daza Bolaños, Carolina Lechinski de Paula, Simony Trevizan Guerra, Marília Masello Junqueira Franco, Márcio Garcia Ribeiro
Tuberculosis remains as the world's biggest threat. In 2014, human tuberculosis ranked as a major infectious disease by the first time, overcoming HIV death rates. Bovine tuberculosis is a chronic disease of global distribution that affects animals and can be transmitted to humans by the consumption of raw milk, representing a serious public health concern. Despite the efforts of different countries to control and eradicate bovine tuberculosis, the high negative economic impact on meat and milk production chains remains, given the decreased production efficiency (approximately 25%), the high number of condemned carcasses, and increased animal culling rates...
June 5, 2017: Revista do Instituto de Medicina Tropical de São Paulo
https://www.readbyqxmd.com/read/28587147/toxoplasma-gondii-in-the-food-supply
#7
Malik A Hussain, Victoria Stitt, Elizabeth A Szabo, Bruce Nelan
Toxoplasmosis is caused by infection with the protozoan parasite Toxoplasma gondii. Infections are usually either asymptomatic or develop mild symptoms that are self-limited, but infections in immunosuppressed persons can be severe. Infections in pregnant women can cause serious health problems in the child such as mental retardation and blindness. Infection with T. gondii in immunocompetent adults can lead to impaired eyesight. Toxoplasmosis has ranked very highly in two studies of death and disability attributable to foodborne pathogens...
May 26, 2017: Pathogens
https://www.readbyqxmd.com/read/28557277/rumen-microbiota-and-dietary-fat-a-mutual-shaping
#8
REVIEW
F Enjalbert, S Combes, A Zened, A Meynadier
Although fat content in usual ruminant diets is very low, fat supplements can be given to farm ruminants to modulate rumen activity or the fatty acid profile of meat and milk. Unsaturated fatty acids, which are dominant in common fat sources for ruminants, have negative effects on microbial growth, especially protozoa and fibrolytic bacteria. In turn, the rumen microbiota detoxifies unsaturated fatty acids through a biohydrogenation process, transforming dietary unsaturated fatty acids with cis geometrical double bonds into mainly trans unsaturated fatty acids and, finally, into saturated fatty acids...
May 29, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/28553267/effect-of-feed-additives-on-productivity-and-campylobacter-spp-loads-in-broilers-reared-under-free-range-conditions
#9
Muriel Guyard-Nicodème, Adeline Huneau-Salaün, Fabrizio A Tatone, Fabien Skiba, Maxime Quentin, Ségolène Quesne, Typhaine Poezevara, Marianne Chemaly
The poultry reservoir, especially broiler meat, is generally recognized as one of the most-important sources for human Campylobacteriosis. The measures to control Campylobacter targeted essentially the primary production level. The aim of this work was to evaluate the effectiveness of different treatments against natural Campylobacter colonization in a French experimental farm of free-range broilers during the whole rearing period. Five commercial products and a combination of two of them were tested and all the products were added to feed or to water at the dose recommended by the suppliers...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28550594/comparison-of-rapid-diagnostic-tests-to-detect-mycobacterium-avium-subsp-paratuberculosis-disseminated-infection-in-bovine-liver
#10
Mehdi Zarei, Masoud Ghorbanpour, Samaneh Tajbakhsh, Nader Mosavari
Mycobacterium avium subsp. paratuberculosis (MAP) causes Johne's disease, a chronic enteritis in cattle and other domestic and wild ruminants. The presence of MAP in tissues other than intestines and associated lymph nodes, such as meat and liver, is a potential public health concern. In the present study, the relationship between the results of rapid diagnostic tests of the Johne's disease, such as serum ELISA, rectal scraping PCR, and acid-fast staining, and the presence of MAP in liver was evaluated. Blood, liver, and rectal scraping samples were collected from 200 slaughtered cattle with unknown Johne's disease status...
May 27, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28542235/environmental-persistence-of-porcine-coronaviruses-in-feed-and-feed-ingredients
#11
Michaela P Trudeau, Harsha Verma, Fernando Sampedro, Pedro E Urriola, Gerald C Shurson, Sagar M Goyal
Porcine Epidemic Diarrhea Virus (PEDV), Porcine Delta Corona Virus (PDCoV), and Transmissible Gastroenteritis Virus (TGEV) are major threats to swine health and contaminated feed plays a role in virus transmission. The objective of our study was to characterize inactivation of PEDV, PDCoV, and TGEV in various feed ingredient matrices. Samples of complete feed, spray dried porcine plasma, meat meal, meat and bone meal, blood meal, corn, soybean meal, and corn dried distillers grains with solubles were weighed (5 g/sample) into scintillation vials and inoculated with 1 mL of PEDV, PDCoV, or TGEV...
2017: PloS One
https://www.readbyqxmd.com/read/28531221/human-paleodiet-and-animal-utilization-strategies-during-the-bronze-age-in-northwest-yunnan-province-southwest-china
#12
Lele Ren, Xin Li, Lihong Kang, Katherine Brunson, Honggao Liu, Weimiao Dong, Haiming Li, Rui Min, Xu Liu, Guanghui Dong
Reconstructing ancient diets and the use of animals and plants augment our understanding of how humans adapted to different environments. Yunnan Province in southwest China is ecologically and environmentally diverse. During the Neolithic and Bronze Age periods, this region was occupied by a variety of local culture groups with diverse subsistence systems and material culture. In this paper, we obtained carbon (δ13C) and nitrogen (δ15N) isotopic ratios from human and faunal remains in order to reconstruct human paleodiets and strategies for animal exploitation at the Bronze Age site of Shilinggang (ca...
2017: PloS One
https://www.readbyqxmd.com/read/28529114/perceptions-of-healthy-eating-amongst-indian-adolescents-in-india-and-canada
#13
Natasha Correa, Divya Rajaraman, Sumathi Swaminathan, Mario Vaz, K G Jayachitra, Scott A Lear, Zubin Punthakee
INTRODUCTION: Dietary patterns have contributed to the rising prevalence of overweight and obesity among Indian adolescents. Yet there are limited studies on their perspectives on healthy eating. The purpose of this study was to understand perceptions and attitudes of Indian-origin adolescents in India and Canada that may contribute to healthy eating behaviour. METHODS: Qualitative data collection and analysis of 13 focus group discussions (FGD) was conducted among 34 boys and 39 girls (total number of participants: 73) of different weight and socioeconomic status (SES) in rural and urban India, and urban Canada aged 11-18 years...
May 18, 2017: Appetite
https://www.readbyqxmd.com/read/28513575/adding-value-to-goat-meat-biochemical-and-technological-characterization-of-autochthonous-lactic-acid-bacteria-to-achieve-high-quality-fermented-sausages
#14
Miriam T Nediani, Luis García, Lucila Saavedra, Sandra Martínez, Soledad López Alzogaray, Silvina Fadda
Quality and safety are important challenges in traditional fermented sausage technology. Consequently, the development of a tailored starter culture based on indigenous microbiota constitutes an interesting alternative. In the present study, spontaneously fermented goat meat sausages were created and analyzed using a physicochemical and microbiological approach. Thereafter 170 lactic acid bacteria (LAB) strains were isolated and preliminary characterized by phenotypic assays. The hygienic and technological properties, and growth and fermentative potential of isolates using a goat-meat-based culture medium were evaluated...
May 17, 2017: Microorganisms
https://www.readbyqxmd.com/read/28504889/genetic-characterization-of-vana-enterococcus-faecium-isolates-from-wild-red-legged-partridges-in-portugal
#15
Vanessa Silva, Gilberto Igrejas, Isabel Carvalho, Fernando Peixoto, Lucas Cardoso, José Eduardo Pereira, Rosa Del Campo, Patricia Poeta
Vancomycin-resistant enterococci (VRE) have been detected in wild animals representing a public health concern. The red-legged partridge (Alectoris rufa) is a common game bird and its meat is consumed in several countries, including Portugal. Three hundred five fecal samples of red-legged partridge from the north of Portugal were screened for VRE. Samples were cultured on Slanetz-Bartley agar supplemented with vancomycin (4 mg/L) and six vanA-Enterococcus faecium were recovered. Isolates were tested for antibiotic resistance and virulence genes...
May 15, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28502588/alternative-uses-for-co-products-harnessing-the-potential-of-valuable-compounds-from-meat-processing-chains
#16
REVIEW
Anne Maria Mullen, Carlos Álvarez, Dimitrios I Zeugolis, Maeve Henchion, Eileen O'Neill, Liana Drummond
Opportunities for exploiting the inherent value of protein-rich meat processing co-products, in the context of increased global demand for protein and for sustainable processing systems, are discussed. While direct consumption maybe the most profitable route for some, this approach is influenced greatly by local and cultural traditions. A more profitable and sustainable approach may be found in recognizing this readily available and under-utilised resource can provide high value components, such as proteins, with targeted high value functionality of relevance to a variety of sectors...
May 3, 2017: Meat Science
https://www.readbyqxmd.com/read/28475952/on-site-identification-of-meat-species-in-processed-foods-by-a-rapid-real-time-polymerase-chain-reaction-system
#17
Shunsuke Furutani, Yoshihisa Hagihara, Hidenori Nagai
Correct labeling of foods is critical for consumers who wish to avoid a specific meat species for religious or cultural reasons. Therefore, gene-based point-of-care food analysis by real-time Polymerase Chain Reaction (PCR) is expected to contribute to the quality control in the food industry. In this study, we perform rapid identification of meat species by our portable rapid real-time PCR system, following a very simple DNA extraction method. Applying these techniques, we correctly identified beef, pork, chicken, rabbit, horse, and mutton in processed foods in 20min...
April 22, 2017: Meat Science
https://www.readbyqxmd.com/read/28473901/vaca-and-caga-genotypes-of-helicobacter-pylori-isolated-from-raw-meat-in-isfahan-province-iran
#18
Ali Gilani, Vadood Razavilar, Nordahr Rokni, Ebrahim Rahimi
Foods with animal origins play a substantial role in the transmission of Helicobacter pylori. The present investigation was carried out to study the vacA and cagA genotypes status of H. pylori isolated from various types of meat samples. Two hundred and twenty meat samples were collected and cultured. H. pylori-positive strains were analyzed for the presence of vacA and cagA genotypes. Eleven out of 220 (5.00%) samples were positive for H. pylori. Findings were confirmed by nested PCR. Prevalence of H. pylori in the meat samples of slaughterhouses and butcheries were 72...
2017: Veterinary Research Forum
https://www.readbyqxmd.com/read/28470539/bovine-myoblast-cell-production-in-a-microcarriers-based-system
#19
Sanne Verbruggen, Daan Luining, Anon van Essen, Mark J Post
For several tissue engineering applications, in particular food products, scaling up culture of mammalian cells is a necessary task. The prevailing method for large scale cell culture is the stirred tank bioreactor where anchor dependent cells are grown on microcarriers suspended in medium. We use a spinner flask system with cells grown on microcarriers to optimize the growth of bovine myoblasts. Freshly isolated primary cells were seeded on microcarriers (Synthemax(®), CellBIND(®) and Cytodex(®) 1 MCs)...
May 3, 2017: Cytotechnology
https://www.readbyqxmd.com/read/28470455/potential-approaches-to-assess-the-infectivity-of-hepatitis-e-virus-in-pork-products-a-review
#20
REVIEW
Nigel Cook, Martin D'Agostino, Reimar Johne
The zoonotic transmission of hepatitis E, caused by the hepatitis E virus (HEV), is an emerging issue. HEV appears common in pigs (although infected pigs do not show clinical signs), and evidence suggests that a number of hepatitis E cases have been associated with the consumption of undercooked pork meat and products. Little information is available on whether cooking can eliminate HEV, since there is currently no robust method for measuring its infectivity. HEV infectivity can be clearly demonstrated by monitoring for signs of infection (e...
May 3, 2017: Food and Environmental Virology
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