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https://www.readbyqxmd.com/read/29150509/the-tape-measure-protein-is-involved-in-the-heat-stability-of-lactococcus-lactis-phages
#1
Hany Geagea, Simon J Labrie, Muriel Subirade, Sylvain Moineau
Virulent lactococcal phages are still a major risk for milk fermentation processes as they may lead to slowdowns and low quality fermented dairy products, particularly cheeses. Some of the phage control strategies used by the industry rely on heat treatments. Recently, a few Lactococcus lactis phages were found to be highly thermo-resistant. To identify the genetic determinant(s) responsible for the thermal resistance of lactococcal phages, we used the virulent phage CB14 (sk1virus/936 group) to select for phage mutants with increased heat stability...
November 17, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29147103/antibacterial-effects-against-various-foodborne-pathogens-and-sensory-properties-of-yogurt-supplemented-with-panax-ginseng-marc-extract
#2
Su Jin Eom, Ji Eun Hwang, Kee-Tae Kim, Hyun-Dong Paik
Panax ginseng marc is produced from fresh ginseng roots during processing and is generally treated as industrial waste. The primary aim of this study was to improve its utilization in the dairy industry as a potential high-value resource. Yogurt was prepared from 11% skim milk powder, 0.1% pectin, 10% sucrose, and ginseng marc ethanol extract (GME, 0.5% and 1.0%) in milk, and was inoculated with a 0.02% yogurt culture (Lactobacillus acidophilus, Bifidobacterium longum, and Streptococcus thermophilus). After fermentation at 40°C for 6-8 h, the physicochemical properties of samples were analyzed by the AOAC, Kjeldahl, and Soxhlet methods...
2017: Korean Journal for Food Science of Animal Resources
https://www.readbyqxmd.com/read/29128211/genome-wide-association-studies-to-identify-quantitative-trait-loci-affecting-milk-production-traits-in-water-buffalo
#3
J J Liu, A X Liang, G Campanile, G Plastow, C Zhang, Z Wang, A Salzano, B Gasparrini, M Cassandro, L G Yang
Water buffalo is the second largest resource of milk supply around the world, and it is well known for its distinctive milk quality in terms of fat, protein, lactose, vitamin, and mineral contents. Understanding the genetic architecture of milk production traits is important for future improvement by the buffalo breeding industry. The advance of genome-wide association studies (GWAS) provides an opportunity to identify potential genetic variants affecting important economical traits. In the present study, GWAS was performed for 489 buffaloes with 1,424 lactation records using the 90K Affymetrix Buffalo SNP Array (Affymetrix/Thermo Fisher Scientific, Santa Clara, CA)...
November 8, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29117107/bacteriophages-in-the-dairy-environment-from-enemies-to-allies
#4
REVIEW
Lucía Fernández, Susana Escobedo, Diana Gutiérrez, Silvia Portilla, Beatriz Martínez, Pilar García, Ana Rodríguez
The history of dairy farming goes back thousands of years, evolving from a traditional small-scale production to the industrialized manufacturing of fermented dairy products. Commercialization of milk and its derived products has been very important not only as a source of nourishment but also as an economic resource. However, the dairy industry has encountered several problems that have to be overcome to ensure the quality and safety of the final products, as well as to avoid economic losses. Within this context, it is interesting to highlight the role played by bacteriophages, or phages, viruses that infect bacteria...
November 8, 2017: Antibiotics
https://www.readbyqxmd.com/read/29111886/predictive-modelling-of-the-exposure-to-steviol-glycosides-in-irish-patients-aged-1-3-years-with-phenylketonuria-and-cow-s-milk-protein-allergy
#5
Aaron J O'Sullivan, Sandrine Pigat, Cian O'Mahony, Michael J Gibney, Aideen I McKevitt
Children with Phenylketonuria (PKU) and severe cow's milk protein allergy (CMPA) consume prescribed, specially formulated, foods for special medical purposes (FSMPs) as well as restricted amounts of normal foods. These patients are exposed to artificial sweeteners from the consumption of a combination of free and prescribed foods. Young patients with PKU and CMPA have a higher risk of exceeding acceptable daily intakes (ADI) for additives than age-matched healthy children. A predictive modelling approach has been adapted successfully to assess the additive exposure of young patients with PKU and CMPA to artificial sweeteners...
November 7, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/29108066/estimates-of-genetic-parameters-genetic-trends-and-inbreeding-in-a-crossbred-dairy-sheep-research-flock-in-the-united-states
#6
T W Murphy, Y M Berger, P W Holman, M Baldin, R L Burgett, D L Thomas
For the past 2 decades, the Spooner Agriculture Research Station (ARS) of the University of Wisconsin-Madison operated the only dairy sheep research flock in North America. The objectives of the present study were to 1) obtain estimates of genetic parameters for lactation and reproductive traits in dairy ewes, 2) estimate the amount of genetic change in these traits over time, and 3) quantify the level of inbreeding in this flock over the last 20 yr. Multiple-trait repeatability models (MTRM) were used to analyze ewe traits through their first 6 parities...
October 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/29102136/short-communication-effects-of-fluoxetine-on-lactation-at-weaning-in-sheep
#7
P L Harrelson, D M Hallford, T T Ross
Selective serotonin reuptake inhibitors have been considered for use in the dairy industry to aid in dry-off procedures because of their ability to delay the onset of lactation. Fluoxetine (a selective serotonin reuptake inhibitor; FLX) is an agent that has been shown to delay the onset of lactogenesis stage II when taken during pregnancy and lactation in women. Two experiments were conducted to determine whether ewes would be an appropriate model to evaluate the effects of FLX on milk production at weaning...
October 25, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29098587/water-quality-and-resource-management-in-the-dairy-industry
#8
Joanna Boguniewicz-Zablocka, Iwona Klosok-Bazan, Vincenzo Naddeo
Food industry is one of the most important and fastest growing sectors of economy in Poland. This sector is also characterized by high demand for the resources, particularly for water. Polish food industrial plants consumed 793 hm(3) of water in 2014. Dairy branch had a combined 35% share of the above consumption. As shown by the data obtained from the Polish Central Statistical Office, the majority of dairy plants use its own source of water, so this branch is also important water producer in Poland. Water used for dairy industry should meet the requirements of at least drinking water quality, so the factories need to treat the water...
November 3, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29096436/effect-of-oxidation-and-protein-unfolding-on-cross-linking-of-%C3%AE-lactoglobulin-and-%C3%AE-lactalbumin
#9
Anna C Krämer, Armida Torreggiani, Michael J Davies
Oxidation and heat treatment can initiate changes in the amino acid composition, structure, solubility, hydrophobicity, conformation, function, and susceptibility to proteolysis of proteins. These can result in adverse consequences for mammals, plants, foodstuffs, and pharmaceuticals. This study investigated whether and how individual or combined treatment with heat, a commonly encountered factor in industrial processing, and H2O2 alters the structure and composition of two major milk whey proteins, α-lactalbumin and β-lactoglobulin, and mixtures of these...
November 14, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29096374/mineral-fortification-modifies-physical-and-microstructural-characteristics-of-milk-gels-coagulated-by-a-bacterial-enzymatic-pool
#10
Julia Lombardi, José Manuel Pellegrino, Marina Soazo, Ana Paula Folmer Corrêa, Adriano Brandelli, Patricia Risso, Valeria Boeris
An enzymatic pool from the Amazonian bacterium Bacillus sp. P7 was used as milk coagulant. Discovery of novel coagulants is of great interest in dairy industry for the development of new textures in cheese. Color, mechanical and microstructural characterization of milk gels induced by the bacterial enzymatic pool was carried out. Effect of mineral fortification on these characteristics was studied. Whiter gels with smaller pore diameters were obtained in the presence of Ca(2+) or Mg(2+). These characteristics seemed to be influenced by the effect of ionic strength on casein structure which was also evidenced by digital texture features analysis...
October 16, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/29094661/prevalence-of-child-directed-and-general-audience-marketing-strategies-on-the-front-of-beverage-packaging-the-case-of-chile
#11
Fernanda Mediano Stoltze, Joshua O Barker, Rebecca Kanter, Camila Corvalán, Marcela Reyes, Lindsey Smith Taillie, Francesca R Dillman Carpentier
OBJECTIVE: Front-of-package (FOP) marketing strategies of a wide variety of beverages were catalogued to examine the prevalence of each strategy prior to a sweeping Chilean restriction of child-directed marketing aimed at reducing obesity-related disease among Chile's youth. DESIGN: Photographs of 1005 beverage packages were quantitatively content-analysed to code whether a variety of child-directed, health-oriented and other marketing strategies (e.g. sales promotions) were present on each product's FOP...
November 2, 2017: Public Health Nutrition
https://www.readbyqxmd.com/read/29093278/detection-of-bovine-mastitis-pathogens-by-loop-mediated-isothermal-amplification-and-an-electrochemical-dna-chip
#12
Kazuhiro Kawai, Mika Inada, Keiko Ito, Koji Hashimoto, Masaru Nikaido, Eiji Hata, Ken Katsuda, Yoshio Kiku, Yuichi Tagawa, Tomohito Hayashi
Bovine mastitis causes significant economic losses in the dairy industry. Effective prevention of bovine mastitis requires an understanding of the infection status of a pathogenic microorganism in a herd that has not yet shown clinical signs of mastitis and appropriate treatment specific for the pathogenic microorganism. However, bacterial identification by culture has drawbacks in that the sensitivity may be low and the procedure can be complex. In this study, we developed a genetic detection method to identify mastitis pathogens using a simple and highly sensitive electrochemical DNA chip which can specifically detect bacterial DNA in milk specimens...
November 1, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/29080789/apicomplexan-profilins-in-vaccine-development-applied-to-bovine-neosporosis
#13
Florencia C Mansilla, Alejandra V Capozzo
Neospora caninum, an intracellular protozoan parasite from the phylum Apicomplexa, is the etiologic agent of neosporosis, a disease considered as a major cause of reproductive loss in cattle and neuromuscular disease in dogs. Bovine neosporosis has a great economic impact in both meat and dairy industries, related to abortion, premature culling and reduced milk yields. Although many efforts have been made to restrain bovine neosporosis, there are still no efficacious control methods. Many vaccine-development studies focused in the apicomplexan proteins involved in the adhesion and invasion of the host cell...
October 31, 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/29076394/tetracycline-antibiotics-transfer-from-contaminated-milk-to-dairy-products-and-the-effect-of-the-skimming-step-and-pasteurization-process-on-residue-concentrations
#14
Anna Gajda, Ewelina Nowacka-Kozak, Malgorzata Gbylik, Andrzej Posyniak
The presence of antibiotics in raw milk and milk derivatives poses a threat to human health and can negatively affect the dairy industry. Therefore, the main object of this study was to investigate the transfer of oxytetracycline (OTC), tetracycline (TC), chlortetracycline (CTC) and doxycycline (DC) from raw, experimental milk contaminated with tetracyclines (TCs) to different dairy products: cream, butter, buttermilk, sour milk, whey, curd and cheese. Additionally we tested the effect of the skimming process on TCs concentrations, as well as the influence of low-temperature long-time pasteurization...
October 27, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/29069538/the-effect-of-different-methods-of-fermentation-on-the-detection-of-milk-protein-residues-in-retail-cheese-by-enzyme-linked-immunosorbent-assay-elisa
#15
Katherine O Ivens, Joseph L Baumert, Robert L Hutkins, Steve L Taylor
Milk and milk products are among the most important allergenic food ingredients, both in the United States and throughout the world; cheeses are among the most important of these milk products. Milk contains several major antigenic proteins, each with differing susceptibilities to proteolytic enzymes. The extent of proteolysis in cheese varies as a result of conditions during manufacture and ripening. Proteolysis has the potential to degrade antigenic and allergenic epitopes that are important for residue detection and elicitation of allergic reactions...
October 25, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/29063353/high-prevalence-and-antimicrobial-resistance-of-meca-staphylococcus-aureus-in-dairy-cattle-sheep-and-goat-bulk-tank-milk-in-jordan
#16
Mohammad M Obaidat, Alaa E Bani Salman, Amira A Roess
The aim of this study was to determine the prevalence and antimicrobial resistance of mecA and mecC methicillin-resistant Staphylococcus aureus (MRSA) in cattle, sheep, and goat dairy farms in Jordan. Milk samples were collected from bulk tanks at 117 dairy farms (44 cattle, 47 sheep, and 26 goat dairy farms) in each region of the country. MRSA were isolated on mecA and mecC chromogenic media and confirmed by PCR. The confirmed isolates were tested for resistance toward 15 antimicrobials by the disc diffusion method...
October 23, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/29062194/mastitis-vaccines-in-dairy-cows-recent-developments-and-recommendations-of-application
#17
REVIEW
Zuhair Bani Ismail
The objective of this review article was to summarize the most recent clinical field trials that have been published evaluating the use of different types of vaccines against mastitis pathogens in dairy cows. Mastitis is one of the most common and economically important diseases in dairy cows in the world. The disease is considered an important welfare issue facing the dairy industry in addition to the loss of production and premature removal or death of affected cows. Losses are also related to high cost of veterinary medicines and the cost of unsalable milk of treated cows...
September 2017: Veterinary World
https://www.readbyqxmd.com/read/29056672/immuno-detection-of-c3a-a-c3-complement-activated-product-in-mastitis-milk-a-potential-diagnostic-marker
#18
Thanislass Jacob, Gangasudan Subramani, Prathiba Sivaprakasam, Antony P Xavier, Hirak K Mukhopadhyay
The sub-clinical form of mastitis is difficult to detect and causes huge economic loss to the dairy industry. It has become a threat to public health at large, thus there is a need for definite diagnosis of the disease. Therefore, this study was undertaken to identify the novel diagnostic marker for the detection of the sub-clinical form of mastitis. Two-dimensional gel analysis of the whey protein fraction of normal and mastitis milk samples revealed the presence of proteose peptone component 3 precursor, Trypsin precursor, complement component-C3, Ig heavy chain precursors and a C-type lectin domain as differentially expressed protein during the early stage of mastitis...
February 23, 2017: Veterinary Sciences
https://www.readbyqxmd.com/read/29046023/-determination-of-a-new-cow-s-milk-based-formula-allergenic-capacity-in-7-infants
#19
Beatriz Estella López-Marín, Benjamín Rojano, Luz Marina Carvajal-de Pabón
BACKGROUND: Cow's milk protein allergy is the main allergic problem during the first year of life, possibly owing to immune and gastrointestinal systems poor maturation. To prevent allergic reactions, the content and type of proteins in infant formulas resemble those of breast milk. We believe that reactions are due rather to the amount than to the type of protein. OBJECTIVE: To design a new formula with cow's milk that provides the infant with the main nutrients at an affordable cost and with lower risk for the development of allergies...
July 2017: Revista Alergia Mexico: Organo Oficial de la Sociedad Mexicana de Alergia e Inmunología, A.C
https://www.readbyqxmd.com/read/29032473/oligosaccharide-biotechnology-an-approach-of-prebiotic-revolution-on-the-industry
#20
REVIEW
Mario Cezar Rodrigues Mano, Iramaia Angélica Neri-Numa, Juliana Bueno da Silva, Bruno Nicolau Paulino, Marina Gabriel Pessoa, Gláucia Maria Pastore
Oligosaccharides are polymers with two to ten monosaccharide residues which have sweetener functions and sensory characteristics, in addition to exerting physiological effects on human health. The ones called nondigestible exhibit a prebiotic behavior being fermented by colonic microflora or stimulating the growth of beneficial bacteria, playing roles in the immune system, protecting against cancer, and preventing cardiovascular and metabolic issues. The global prebiotics market is expected to grow around 12...
October 14, 2017: Applied Microbiology and Biotechnology
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