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A J Bucci, D L Van Hekken, M H Tunick, J A Renye, P M Tomasula
This work examines the use of mild heat treatments in conjunction with 2-pass microfluidization to generate cheese milk for potential use in soft cheeses, such as Queso Fresco. Raw, thermized, and high temperature, short time pasteurized milk samples, standardized to the 3% (wt/wt) fat content used in cheesemaking, were processed at 4 inlet temperature and pressure conditions: 42°C/75 MPa, 42°C/125 MPa, 54°C/125 MPa, and 54°C/170 MPa. Processing-induced changes in the physical, chemical, and microbial properties resulting from the intense pressure, shear, and cavitation that milk experiences as it is microfluidized were compared with nonmicrofluidized controls...
May 16, 2018: Journal of Dairy Science
S Mojahedi, M Khorvash, G R Ghorbani, E Ghasemi, M Mirzaei, F Hashemzadeh-Cigari
This study evaluated the interactive effects of forage provision on performance, nutritional behavior, apparent digestibility, rumen fermentation, and blood metabolites of dairy calves when corn grains with different fermentability were used. Sixty 3-d-old Holstein calves were randomly assigned to 1 of 4 treatments in a 2 × 2 factorial arrangement. Dietary treatments were (1) steam-flaked (SF) corn without alfalfa hay (AH) supplementation (SF-NO), (2) SF corn with AH supplementation (SF-AH), (3) cracked (CR) corn without AH supplementation (CR-NO), and (4) CR corn with AH supplementation (CR-AH)...
May 16, 2018: Journal of Dairy Science
J C Ribeiro Júnior, R Tamanini, A L M de Oliveira, A A Alfieri, V Beloti
When correctly pasteurized, packaged, and stored, milk with low total bacterial counts (TBC) has a longer shelf life. Therefore, microorganisms that resist heat treatments are especially important in the deterioration of pasteurized milk and in its shelf life. The aim of this work was to quantify the thermoduric microorganisms after the pasteurization of refrigerated raw milk samples with low TBC and to identify the diversity of these isolates with proteolytic or lipolytic potential by RFLP analysis. Twenty samples of raw milk were collected in bulk milk tanks shortly after milking in different Brazilian dairy farms and pasteurized...
May 16, 2018: Journal of Dairy Science
Maria Rosario Capeding, Samuel Teshome, Tarun Saluja, Khalid Ali Syed, Deok Ryun Kim, Ju Yeon Park, Jae Seung Yang, Yang Hee Kim, Jiwook Park, Sue-Kyoung Jo, Yun Chon, Sudeep Kothari, Seon-Young Yang, Dong Soo Ham, Ji Hwa Ryu, Hee-Seong Hwang, Ju-Hwan Mun, Julia Lynch, Jerome Kim, Hun Kim, Jean-Louis Excler, Sushant Sahastrabuddhe
BACKGROUND: Typhoid fever remains a major public health problem in low- and middle-income countries where children aged 2-14 years bear the greatest burden. Vi polysaccharide is poorly immunogenic in children <2 years of age, and protection in adults is modest. The limitations of Vi polysaccharide vaccines can be overcome by conjugation of the Vi to a carrier protein. A typhoid conjugate vaccine composed of Vi polysaccharide conjugated to diphtheria toxoid (Vi-DT) has been developed...
May 15, 2018: Vaccine
Simon Grandjean-Lapierre, Simon-Djamel Thiberville, Mustapha Fellag, Christophe Eghazarian, Feriel Bouzid, Christina Gavril, Michel Drancourt
BACKGROUND: Mycobacterium bovis causing tuberculosis in animals is responsible for zoonotic tuberculosis in patients. Veterinary control measures and milk pasteurization has led to a significant decrease in human cases of M. bovis infections in developed countries. CASE PRESENTATION: We diagnosed recurrent M. bovis epididymitis in a 63-year old Caucasian man without any signs of pulmonary or disseminated disease. Relevant epidemiological expositions included camel milk drinking during prolonged travels in Niger, prior to initial clinical manifestations...
May 18, 2018: BMC Research Notes
Kelly A Jackson, L Hannah Gould, Jennifer C Hunter, Zuzana Kucerova, Brendan Jackson
Since 2006, the number of reported US listeriosis outbreaks associated with cheese made under unsanitary conditions has increased. Two-thirds were linked to Latin-style soft cheese, often affecting pregnant Hispanic women and their newborns. Adherence to pasteurization protocols and sanitation measures to avoid contamination after pasteurization can reduce future outbreaks.
June 2018: Emerging Infectious Diseases
Karen Silva Leal, Mara Thais de Oliveira Silva, Andréa de Fátima Silva Rezende, Francisco Silvestre Brilhante Bezerra, Karine Begnini, Fabiana Seixas, Tiago Collares, Odir Dellagostin, Ricardo Wagner Portela, Vasco Ariston de Carvalho Azevedo, Sibele Borsuk
The aim of this study was to evaluate the survival of mice inoculated with M. bovis BCG Pasteur recombinant expressing the PLD protein and challenged with a C. pseudotuberculosis virulent strain. Four groups were immunized with a sterile 0.9% saline solution (G1), 106  CFU of M. bovis BCG Pasteur (G2), 106  CFU of M. bovis BCG/pld (G3) or 106  CFU of M. bovis BCG/pld with a booster with rPLD (G4) and challenged with 104 CFU of C. pseudotuberculosis MIC-6 strain. The highest survival rate of 88% was observed in G4, followed by 77% in G3 and 66% in G2...
May 11, 2018: Vaccine
Xiaomeng Sun, Cuina Wang, Hao Wang, Mingruo Guo
Powdered infant formula is usually manufactured by ingredients mixing, homogenization, pasteurization, evaporation and spray drying. Effects of unit operations on the microstructure, thermal properties and other characteristics of preterm infant formula, fat (F), serum (S), and pellet (P) fractions on centrifugation were investigated using Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), Differential Scanning Calorimetry (DSC), and Fourier Transform Infrared (FTIR) spectroscopy. After homogenization, particles which may be casein and denatured whey proteins were observed on the surface of F fraction in microstructure images...
May 10, 2018: Journal of Food Science
Leonie Jt Balter, Sasha Hulsken, Sarah Aldred, Mark T Drayson, Suzanne Higgs, Jet Jcs Veldhuijzen van Zanten, Jane E Raymond, Jos A Bosch
The ability to adequately interpret the mental state of another person is key to complex human social interaction. Recent evidence suggests that this ability, considered a hallmark of 'theory of mind' (ToM), becomes impaired by inflammation. However, extant supportive empirical evidence is based on experiments that induce not only inflammation but also induce discomfort and sickness, factors that could also account for temporary social impairment. Hence, an experimental inflammation manipulation was applied that avoided this confound, isolating effects of inflammation and social interaction...
May 6, 2018: Brain, Behavior, and Immunity
Juliana Galera Castilho, Samira Maria Achkar, Rafael de Novaes Oliveira, Enio Mori, Pedro Carnieli, Carla Isabel Macedo
The genetic lineage of rabies virus (RABV) associated with dogs has not been found in the state of São Paulo since 1998, and all cases of rabies in domestic animals reported since then have involved the RABV lineage that circulates in bats. As there has been a change in the rabies transmission cycle in cats and dogs, we decided to analyze the tests used to diagnose rabies in these animals in the 15-year period from 2002 to 2016 in the state of São Paulo. During this period, 85,508 central nervous system (CNS) samples from dogs and cats were submitted to the Rabies Diagnosis Section at the Pasteur Institute of São Paulo for testing...
May 8, 2018: Archives of Virology
Yufang Liu, Monika Pischetsrieder
To evaluate if the recently identified antimicrobial milk peptides αS2 -casein182-207 and αS2 -casein151-181 can be of physiological or technological relevance, their presence in commercial milk was investigated. Thus, a UHPLC-ESI-MS/MS scheduled multiple reaction monitoring method was developed for quantification using stable isotope-labeled peptides. The developed protocol gave very good linear response (R2  > 0.99) for both peptides, recovery >95% and coefficients of variations of 5.51% and 4...
September 30, 2018: Food Chemistry
Mehtab K Sekhon, Bradley A Yoder
BACKGROUND: Necrotizing enterocolitis (NEC) is a serious complication of prematurity. Our objective was to evaluate the impact of an umbilical cord milking protocol (UCM) and pasteurized donor human milk (PDHM) on NEC rates in infants less than 30 weeks gestational age from January 1, 2010 to September 30, 2016. We hypothesized an incremental decrease in NEC after each intervention. METHODS: We performed a retrospective review of 638 infants born less than 30 weeks gestational age...
May 8, 2018: BMC Pediatrics
María de Los Angeles Robinson-Agramonte, Lourdes Lorigados Pedre, Orlando Ramón Serrano-Barrera
Neuroimmunology can be traced back to the XIX century through the descriptions of some of the disease&rsquo;s models (e.g., multiple sclerosis and Guillain Barret syndrome, amongst others). The diagnostic tools are based in the cerebrospinal fluid (CSF) analysis developed by Quincke or in the development of neuroimmunotherapy with the earlier expression in Pasteur&rsquo;s vaccine for rabies. Nevertheless, this field, which began to become delineated as an independent research area in the 1940s, has evolved as an innovative and integrative field at the shared edges of neurosciences, immunology, and related clinical and research areas, which are currently becoming a major concern for neuroscience and indeed for all of the scientific community linked to it...
May 8, 2018: Behavioral Sciences
Rose Hilal, Marine Poittevin, Adrien Pasteur-Rousseau, Adrien Cogo, Gabrielle Mangin, Marie Chevauché, Yasmine Ziat, José Vilar, Jean-Marie Launay, Jean-François Gautier, Dong Broquères-You, Bernard I Levy, Tatyana Merkulova-Rainon, Nathalie Kubis
Clinical trials of cell therapy in stroke favor autologous cell transplantation. To date, feasibility studies have used bone marrow-derived mononuclear cells, but harvesting bone marrow cells is invasive thus complicating bedside treatment. We investigated the therapeutic potential of peripheral blood-derived mononuclear cells (PB-MNC) harvested from diabetic patients and stimulated by ephrin-B2 (PB-MNC+) (500,000 cells), injected intravenously 18-24 hours after induced cerebral ischemia in mice. Infarct volume, neurological deficit, neurogenesis, angiogenesis, and inflammation were investigated as were the potential mechanisms of PB-MNC+ cells in poststroke neurorepair...
2018: Stem Cells International
I Paniagua-Martínez, A Mulet, M A García-Alvarado, J Benedito
Supercritical carbon dioxide inactivation technology represents a promising nonthermal processing method, as it causes minimum impact on the nutritional food properties. The aim of this study was to analyze the combined effect of supercritical carbon dioxide and high-power ultrasound on the inactivation of natural microbiota and the quality attributes of pineapple juice treated in a continuous flow system. Different juice residence times (3.06-4.6 min), at 100 bar and 31.5 ℃, were used. The results indicated that the microbiota inactivation was complete and the differences obtained in the quality attributes (2...
January 1, 2018: Food Science and Technology International, Ciencia y Tecnología de Los Alimentos Internacional
Vincent Laville, Amy R Bentley, Florian Privé, Xiaofeng Zhu, Jim Gauderman, Thomas W Winkler, Mike Province, D C Rao, Hugues Aschard
Summary: Many genome-wide association studies (GWAS) and genome-wide screening for gene-environment interactions have been performed to elucidate the underlying mechanisms of human traits and diseases. When the analyzed outcome is quantitative, the overall contribution of identified genetic variants to the outcome is often expressed as the percentage of phenotypic variance explained. This is commonly done using individual-level genotype data but it is challenging when results are derived through meta-analyses...
May 3, 2018: Bioinformatics
V Rigourd, J P Barnier, A Ferroni, M Nicloux, T Hachem, J F Magny, A Lapillonne, P Frange, X Nassif, E Bille
Three cases of Bacillus cereus infection or colonization occurred in the same region in France, and milk from the milk bank was suspected as a possible common source of contamination. All Batches delivered to the three cases complied with the requirements of the bacteriological reference method recommended by good practices guidelines. Still, a retrospective analysis with a more sensitive method showed one batch to contain B. cereus, however straincomparison revealed no epidemiological link betweenisolates from patients and those from the milk...
May 3, 2018: European Journal of Clinical Microbiology & Infectious Diseases
Cristina Simões Cortinhas, Bruno Garcia Botaro, Susana Nori de Macedo, Marcos Veiga Dos Santos
This study identified the association of management practices and herd characteristics with milk quality of bulk tanks in southeastern, Brazil. Milk samples were collected weekly during 8 weeks from 63 dairy herds. Bulk tanks were evaluated for total bacteria (TBC), preliminary incubation (PIC), pasteurization (PC), coliform (CC), and somatic cell counts (SCC). Associations found were type of milking system utilized in the farm with TBC, PIC, and SCC; the use of gloves for milking with TBC and PIC; sanitation of milking equipment prior to milking with PC and CC; strip cup testing of cows with PC; teat washing prior to milking with SCC; pre-milking teat disinfection with TBC and CC; post-dipping with TBC and SCC; and the alkaline-acid washing procedure of milking equipment with PIC and PC...
April 30, 2018: Tropical Animal Health and Production
Myrsini Kakagianni, Kelly Kalantzi, Evangelos Beletsiotis, Dimitrios Ghikas, Alexandra Lianou, Konstantinos P Koutsoumanis
This study was undertaken to provide quantitative tools for predicting the behavior of the spoilage bacterium Alicyclobacillus acidoterrestris ATCC 49025 in fruit drinks. In the first part of the study, a growth/no growth interface model was developed, predicting the probability of growth as a function of temperature and pH. For this purpose, the growth ability of A. acidoterrestris was studied at different combinations of temperature (15-45 °C) and pH (2.02-5.05). The minimum pH and temperature where growth was observed was 2...
September 2018: Food Microbiology
Marianna Ruggirello, Manuela Giordano, Marta Bertolino, Ilario Ferrocino, Luca Cocolin, Paola Dolci
Lactococcus lactis, is extensively used as starter culture in dairy products. Nevertheless, it has recently been detected in cheese, as metabolically active cells, in advanced ripening stages. In this study, we assessed the viability of L. lactis subsp. lactis in model cheeses up to 180 days of ripening by both culture-dependent and -independent methods. In addition, we studied the expression of metC and als genes involved in the production of aroma compounds detected by Gas Chromatography-Mass Spectrometry (GC-MS)...
September 2018: Food Microbiology
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