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Cultured meat

Elisabeth G Biesta-Peters, Ida Jongenburger, Enne de Boer, Wilma F Jacobs-Reitsma
During the last decade Campylobacter has been the most commonly reported gastrointestinal bacterial infection in humans in the European Union. The use of a sensitive detection method based on enrichment of Campylobacter spp. is often needed when examining foods. However, as background flora developed resistance to third generation β-lactams used in selective culture media, the ISO method was adapted. It now consists of three different procedures (A, B, and C) depending on the expected concentration and condition of Campylobacter and the background microflora...
June 19, 2018: International Journal of Food Microbiology
Asma Afshari, Ahmad Baratpour, Saeed Khanzade, Abdollah Jamshidi
Background and Objectives: Salmonellosis caused by Salmonella spp. is one of the most important zoonotic diseases and transmits to human through raw food animal products including poultry meat. Salmonella enterica serovar Enteritidis and Salmonella enterica serovar Typhimurium are the most important strains that infect human. This study was conducted to evaluate the contamination rate of poultry carcasses with S. Enteritidis and S. Typhimurium using multiplex PCR assay. Materials and Methods: 100 samples were selected during the summer and fall of 2010 by cluster sampling method from 10 broiler flocks, which were slaughtered in a poultry abattoir located in Mashhad suburb...
February 2018: Iranian Journal of Microbiology
Alejandra Orihuel, Lucrecia Terán, Jenny Renaut, Graciela M Vignolo, André M De Almeida, María L Saavedra, Silvina Fadda
Human infection by Enterohemorrhagic Escherichia (E.) coli (EHEC) occurs through the ingestion of contaminated foods such as milk, vegetable products, water-based drinks, and particularly minced meats. Indeed EHEC is a pathogen that threatens public health and meat industry. The potential of different Lactic Acid Bacteria (LAB) strains to control EHEC in a meat-based medium was evaluated by using a simple and rapid method and by analyzing the growth kinetics of co-cultures (LAB-EHEC) in a meat-based medium...
2018: Frontiers in Microbiology
Kennedy F Chah, Ifeoma C Ugwu, Angela Okpala, Kwabugge Y Adamu, Carla Andrea Alonso, Sara Ceballos, John N Nwanta, Carmen Torres
OBJECTIVE: To screen chickens and pigs slaughtered for human consumption for presence and characteristics of extended spectrum beta-lactamase (ESBL) and plasmidic AmpC (pAmpC) beta-lactamase-producing enteric bacteria. METHODS: Faecal samples from 410 broiler chickens and 100 pigs were cultured on MacConkey agar supplemented with 2μg/ml cefotaxime. The antibacterial resistance phenotypes of the recovered isolates were determined by disc-diffusion method while PCR and subsequent sequencing was performed to identify the ESBL and pAmpC gene variants and other associated resistance determinants...
June 14, 2018: Journal of Global Antimicrobial Resistance
Ana Cristina Oliveira, Ana Barata, Ana P Batista, Luísa Gouveia
Wastewater biological treatment with microalgae can be an effective technology, removing nutrients and other contaminants while reducing chemical oxygen demand. This can be particularly interesting for the meat producing industry which produces large volumes of wastewater from the slaughtering of animals and cleaning of their facilities. The main purpose of this research was the treatment of poultry wastewater using Scenedesmus obliquus in an economical and environmentally sustainable way. Two wastewaters were collected from a Portuguese poultry slaughterhouse (poultry raw - PR and poultry flocculated - PF) and the bioremediation was evaluated...
June 12, 2018: Environmental Technology
Geoffrey Ras, Sabine Leroy, Régine Talon
Coagulase-negative staphylococci are frequently isolated from meat products and two species are used as starter cultures in dry fermented sausages. In these products, they face various environmental conditions such as variation of redox potential and oxygen levels that can lead to oxidative stress. Furthermore, when nitrate and nitrite are added as curing salts, staphylococci also experience nitrosative stress. A nos gene encoding a nitric oxide synthase (NOS) is present in the genome of all staphylococci. NOS produces nitric oxide (NO) and citrulline from arginine, but its activity is still poorly characterized, particularly in coagulase-negative staphylococci...
June 7, 2018: International Journal of Food Microbiology
Michael W Pfaffl, Irmgard Riedmaier-Sprenzel
The misuse of anabolic hormones or illegal drugs is a ubiquitous problem in animal husbandry and also in food safety. The ban on growth promotants in food producing animals in the European Union is well controlled. However, application regimens that are difficult to detect persist, including newly designed anabolic drugs and complex hormone cocktails. Therefore identification of molecular endogenous biomarkers which are based on the physiological response after the illicit treatment has become a focus of detection methods...
May 31, 2018: Asian-Australasian Journal of Animal Sciences
Stephen B Smith, Takafumi Gotoh, Paul L Greenwood
The demand for beef as a protein source is increasing worldwide, although in most countries beef accounts for considerably less than half of total meat consumption. Beef also provides a highly desirable eating experience in developed countries and, increasingly, in developing countries. The sustainability of beef production has different meanings in the various geographical and socio-economic regions of the world. Natural resources including land mass and uses, rainfall and access to livestock feed, and the robustness of the economy are major determinants of the perception of beef sustainability...
May 31, 2018: Asian-Australasian Journal of Animal Sciences
Marta Dec, Anna Nowaczek, Renata Urban-Chmiel, Dagmara Stępień-Pyśniak, Andrzej Wernicki
Campylobacteriosis is currently the most frequent zoonosis in humans and the main source of infection is contaminated poultry meat. As chickens are a natural host for Campylobacter species, one strategy to prevent infection in humans is to eliminate these bacteria on poultry farms. A study was conducted to evaluate the probiotic potential of 46 Lactobacillus isolates from chickens faeces or cloacae. All lactobacilli were able to produce active compounds on solid media with antagonistic properties against C...
June 6, 2018: Journal of Veterinary Medical Science
Dixie F Mollenkopf, Brittany De Wolf, Sydnee M Feicht, Johana K Cenera, Christy A King, Joany C van Balen, Thomas E Wittum
Antimicrobial resistant bacteria in retail meat pose a health hazard to the public, as does contamination of these products with Salmonella. Our aim was to determine the prevalence of Salmonella as well as Escherichia coli expressing AmpC and extended-spectrum beta-lactamase (ESBL) resistance phenotypes contaminating broiler transport cages and fresh, retail ground chicken meat. Sterile gauze sponges were used to collect duplicate cage floor samples from transport trailers that deliver market-ready birds to a single organic poultry-processing facility...
June 6, 2018: Foodborne Pathogens and Disease
Ioannis Sakaridis, Richard J Ellis, Shaun A Cawthraw, Arnoud H M van Vliet, Dov J Stekel, Johanna Penell, Mark Chambers, Roberto M La Ragione, Alasdair J Cook
One of the major transmission routes for the foodborne bacterial pathogen Campylobacter is undercooked poultry meat, contaminated from intestinal contents during processing. In broilers, Campylobacter can grow to very high densities in the caeca, and is often considered to be a commensal or an opportunistic pathogen in poultry. Reduction of caecal loads of Campylobacter may assist in lowering incidence rates of Campylobacter food poisoning. To achieve this, there needs to be a better understanding of the dynamics of Campylobacter colonization in its natural niche, and the effect of the local microbiome on colonization...
2018: Frontiers in Microbiology
Michela Sali, Flavio De Maio, Michela Tarantino, Giuliano Garofolo, Manuela Tittarelli, Lorena Sacchini, Katiuscia Zilli, Paolo Pasquali, Paola Petrucci, Cinzia Marianelli, Massimiliano Francia, Maurizio Sanguinetti, Rosanna Adone
Brucellosis is essentially a disease of domesticated livestock; however, humans can also be infected via the consumption of contaminated meat or dairy products, underlying the need for rapid and accurate identification methods. Procedures for microbiological identification and typing of Brucella spp. are expensive, time-consuming, and must be conducted in biohazard containment facilities to minimize operator risk. The development of a matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS)-based assay has reduced the processing time while maintaining performance standards...
2018: PloS One
Muhammad A Saeed, Jane L Vaughan, Abdul Jabbar
Sarcocystis spp. are intracellular coccidian parasites which infect domestic and wild animals and birds, resulting in considerable economic losses in production animals, and public health concerns worldwide. Sarcocystis spp. have an indirect life cycle where wild and/or domestic canine species primarily serve as definitive hosts and several domestic and wild animals (such as camels) act as intermediate hosts. In Northern Africa, the Middle East, Central Asia and China, camel meat is preferred due to cultural and religious traditions as well as its lower cholesterol/fat content than other red meat...
June 5, 2018: Parasitology
Khadigeh Sirghani, Tayebeh Zeinali, Abdollah Jamshidi
Poultry meat is one of the most important sources of infection of Yersinia spp. for humans. The aim of the present study was to evaluate the incidence of Yersinia enterocolitica in chicken meat by using culture method on selective medium and confirmation by PCR assay. Also, biochemical methods were used for biotyping. A total of 100 chicken thigh meat samples were collected randomly from retail outlets in Mashhad, Iran. Samples were enriched in Peptone-Sorbitol-Bile (PSB) broth and then cultured on Cefsulodin-Irgasan-Novobiocin (CIN) agar containing antibiotics supplement...
2018: Journal of Pathogens
Babak Qasemi-Panahi, Mansoureh Movahedin, Gholamali Moghaddam, Parviz Tajik, Mortaza Koruji, Javad Ashrafi-Helan, Seyed Abbas Rafat
Background: Sheep industry has taken steps toward transforming itself into a more efficient and competitive field. There are many varieties of sheep breeds in the world that each of them serves a useful purpose in the economies of different civilizations. Ghezel sheep is one of the Iranian important breeds that are raised for meat, milk and wool. Field of spermatogonial cell technologies provides tools for genetic improvement of sheep herd and multiple opportunities for research. Spermatogonial cells are the only stem cells capable of transmitting genetic information to future generations...
April 2018: Avicenna Journal of Medical Biotechnology
Zoe A Watson, Mary P Miles, Carmen Byker Shanks, Elizabeth Rink
BACKGROUND: This study explored community and individual factors that influence the health of reproductive age women in a settlement in northern Greenland. This is important because Greenland has a declining population, a high abortion rate and because of projected environmental shifts due to climate change. METHODS: This study collected mixed methods data to explore diet, physical activity, sleep and waist circumference for reproductive age women in Kullorsuaq, Greenland...
May 1, 2018: Global Health Promotion
Jean-Francois Hocquette, Marie-Pierre Ellies-Oury, Michel Lherm, Christele Pineau, Claus Deblitz, Linda Farmer
The European Union (EU) is the world's third largest producer of beef. This contributes to the economy, rural development, social life, culture and gastronomy of Europe. The diversity of breeds, animal types (cows, bulls, steers, heifers) and farming systems (intensive, extensive on permanent or temporary pastures, mixed, breeders, feeders, etc) is a strength, and a weakness as the industry is often fragmented and poorly connected. There are also societal concerns regarding animal welfare and environmental issues, despite some positive environmental impacts of farming systems...
May 24, 2018: Asian-Australasian Journal of Animal Sciences
Heeseop Yoo, Insoo Rheem, Sungsue Rheem, Sejong Oh
This study was undertaken to find the optimum soy-peptone, glucose, yeast extract, and magnesium sulfate amounts for the maximum growth of Lactobacillus plantarum JNU 2116 and to assess the effects of these medium factors through the use of response surface methodology. A central composite design was used as the experimental design for the allocation of treatment combinations. In the analysis of the experiment, due to a significant lack of fit of the second-order polynomial regression model that was used at first, cubic terms were added to the model, and then two-way interaction terms were deleted from the model since they were found to be all statistically insignificant...
April 2018: Korean Journal for Food Science of Animal Resources
Marcio Aurélio de Almeida, Erick Saldaña, Jair Sebastião da Silva Pinto, Jorge Palacios, Carmen J Contreras-Castillo, Miguel Angel Sentandreu, Silvina Graciela Fadda
Fermented sausage technology is currently compromised in decreasing the addition of NaCl. Use of starter cultures with peptidogenic potential could be a valuable strategy that can mask or hide off flavors produced by the use of NaCl substituents. In the present work, the peptidogenic potential of four lactic acid bacteria species was evaluated in a low-sodium beaker sausage (BS) model. Using a peptidomic approach, a total of 86 low molecular weight (LMW) peptides were accurately identified, mostly derived from myofibrillar proteins, especially actin, which generated 53 peptides...
July 2018: Food Research International
Guillermo Ripoll, Margalida Joy, Begoña Panea
The patterns of food consumption in general and those of meat, in particular, are constantly changing. These changes are due not only to socioeconomic and cultural trends that affect the whole society but also to the specific lifestyles of consumer groups. Due to the importance of consumer lifestyle, the objectives of this study were (i) to identify the profiles of lamb meat consumers according to their orientation toward convenience, as defined by their eating and cooking habits; (ii) to characterize these profiles according to their socioeconomic characteristics and their preferences regarding the intrinsic and extrinsic quality signals of lamb meat; and (iii) to analyze the willingness to pay for lamb confit...
May 22, 2018: Foods (Basel, Switzerland)
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