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https://www.readbyqxmd.com/read/28088417/milk-fat-threshold-determination-and-the-effect-of-milk-fat-content-on-consumer-preference-for-fluid-milk
#1
K S McCarthy, K Lopetcharat, M A Drake
Milk consumption in the United States has been in decline since the 1960s. Milk fat plays a critical role in sensory properties of fluid milk. The first objective of this study was to determine the change in percent milk fat needed to produce a detectable or just noticeable difference (JND) to consumers in skim, 1%, 2%, and whole milks. The second objective was to evaluate how milk fat affected consumer preferences for fluid milk. Threshold tests were conducted to determine the JND for each reference milk (skim, 1%, 2%, and whole milk), with a minimum of 60 consumers for each JND...
January 11, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28071005/fermentation-optimization-of-goat-milk-with-lactobacillus-acidophilus-and-bifidobacterium-bifidum-by-box-behnken-design
#2
Guowei Shu, Chunju Bao, He Chen, Changfeng Wang, Hui Yang
BACKGROUND: Goat milk is only limited to the processing of goat milk powder and liquid milk, the products are mainly about milk powder and a few of them are made as milk tablet. Therefore, the study of probiotic goat milk will have great significance in the full use of goats and the development of the goat milk industry in China. METHODS: The effect of fermentation temperature (35°C, 37°C, 39°C), strain ratio (1:1:1, 2:1:1, 3:1:1) and inoculum size (4%, 5%, 6%) on viable counts of L...
April 2016: Acta Scientiarum Polonorum. Technologia Alimentaria
https://www.readbyqxmd.com/read/28068399/effect-of-calf-gender-on-milk-yield-and-fatty-acid-content-in-holstein-dairy-cows
#3
Amy V Gillespie, James L Ehrlich, Dai H Grove-White
The scale of sexed semen use to avoid the birth of unwanted bull calves in the UK dairy industry depends on several economic factors. It has been suggested in other studies that calf gender may affect milk yield in Holsteins- something that would affect the economics of sexed semen use. The present study used a large milk recording data set to evaluate the effect of calf gender (both calf born and calf in utero) on both milk yield and saturated fat content. Linear regression was used to model data for first lactation and second lactation separately...
2017: PloS One
https://www.readbyqxmd.com/read/28064480/the-impact-of-the-skim-milk-powder-manufacturing-process-on-the-flavor-of-model-white-chocolate
#4
Ashleigh Stewart, Alistair S Grandison, Angela Ryan, Daniel Festring, Lisa Methven, Jane K Parker
Milk powder is an important ingredient in the confectionary industry but its variable nature has consequences for the quality of the final confectionary product. This paper demonstrates that skim milk powders (SMP) produced using different (but typical) manufacturing processes, when used as ingredients in the manufacture of model white chocolates, had a significant impact on the sensory and volatile profiles of the chocolate. SMP was produced from raw bovine milk using either low or high heat treatment, and a model white chocolate was prepared from each SMP...
January 8, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28043544/development-of-an-indirect-elisa-system-to-diagnosis-paratuberculosis-using-surface-antigens-of-mycobacterium-avium-subsp-paratuberculosis-in-cattle
#5
Mona Hatamifar, Nader Mosavari, Javad Kazemi
BACKGROUND/OBJECTIVE: Mycobacterium avium subsp. paratuberculosis (MAP) is the causative agent of paratuberculosis (PTB), also called as Johne's disease, and is considered as the cause of irreparable economic losses in livestock industry. This bacterium is excreted in large amounts through the milk and feces of infected animal. For the detection of the PTB, indirect ELISA has been highly considered as a simple method with high sensitivity and specificity. Accordingly, this study aims at designing a system of indirect ELISA for the detection of PTB...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28030618/whole-genome-resequencing-of-holstein-bulls-for-indel-discovery-and-identification-of-genes-associated-with-milk-composition-traits-in-dairy-cattle
#6
Jianping Jiang, Yahui Gao, Yali Hou, Wenhui Li, Shengli Zhang, Qin Zhang, Dongxiao Sun
The use of whole-genome resequencing to obtain more information on genetic variation could produce a range of benefits for the dairy cattle industry, especially with regard to increasing milk production and improving milk composition. In this study, we sequenced the genomes of eight Holstein bulls from four half- or full-sib families, with high and low estimated breeding values (EBVs) of milk protein percentage and fat percentage at an average effective depth of 10×, using Illumina sequencing. Over 0.9 million nonredundant short insertions and deletions (indels) [1-49 base pairs (bp)] were obtained...
2016: PloS One
https://www.readbyqxmd.com/read/28027444/knowledge-representations-attitudes-and-behaviors-of-women-faced-with-taking-medications-while-breastfeeding
#7
Laurence Spiesser-Robelet, Vanida Brunie, Vincent de Andrade, Rémi Gagnayre
BACKGROUND: Breastfeeding is a major public health issue in terms of its benefits to both mothers and infants. Despite recommendations, breastfeeding initiation and duration are low in many industrialized countries. Although human milk is viewed as the most appropriate food for infants, when it is perceived as contaminated, doubts about its quality can lead to negative behaviors concerning breastfeeding. This is especially true when mothers are taking medication. Research aim: The aim of this review is to evaluate the data in the literature on the knowledge, representations, attitudes, and behaviors of women with regard to taking medication while breastfeeding...
December 1, 2016: Journal of Human Lactation: Official Journal of International Lactation Consultant Association
https://www.readbyqxmd.com/read/28012620/short-communication-improving-the-activity-of-bile-salt-hydrolases-in-lactobacillus-casei-based-on-in-silico-molecular-docking-and-heterologous-expression
#8
Zhi-Qiang Xiong, Qiao-Hui Wang, Ling-Hui Kong, Xin Song, Guang-Qiang Wang, Yong-Jun Xia, Hui Zhang, Yong Sun, Lian-Zhong Ai
Bile salt hydrolase (BSH) plays an essential role in the cholesterol-removing effect of lactic acid bacteria, which hydrolyze conjugated bile salts to amino acid and deconjugated bile salts. However, Lactobacillus casei lacks the bsh gene, which may make it highly sensitive to bile salt stress. We wanted to improve the BSH activity of L. casei for various food-industry applications (e.g., milk fermentation). Plate assay testing indicated that Lactobacillus plantarum AR113 has the highest BSH activity. We cloned and sequenced 4 bsh genes from the genome of L...
December 21, 2016: Journal of Dairy Science
https://www.readbyqxmd.com/read/28008221/a-comparison-of-different-methodologies-for-the-measurement-of-extracellular-vesicles-and-milk-derived-particles-in-raw-milk-from-cows
#9
Geoff Pollott, Amanda Brito, Christopher Gardiner, Charlotte Lawson
Cow's milk is economically important to the agricultural industry with the nutritive value of milk being routinely measured. This does not give full insight into normal mammary tissue turnover during the course of lactation, which could be important for both an understanding of milk production and animal welfare. We have previously demonstrated that submicron particles, including extracellular vesicles (EVs), can be measured in unprocessed cow's milk by flow cytometry and that they correlate with stage of lactation...
2016: Biomarker Insights
https://www.readbyqxmd.com/read/28004171/surface-enhanced-raman-spectroscopy-introduced-into-the-international-standard-organization-iso-regulations-as-an-alternative-method-for-detection-and-identification-of-pathogens-in-the-food-industry
#10
Evelin Witkowska, Dorota Korsak, Aneta Kowalska, Monika Księżopolska-Gocalska, Joanna Niedziółka-Jönsson, Ewa Roźniecka, Weronika Michałowicz, Paweł Albrycht, Marta Podrażka, Robert Hołyst, Jacek Waluk, Agnieszka Kamińska
We show that surface-enhanced Raman spectroscopy (SERS) coupled with principal component analysis (PCA) can serve as a fast, reliable, and easy method for detection and identification of food-borne bacteria, namely Salmonella spp., Listeria monocytogenes, and Cronobacter spp., in different types of food matrices (salmon, eggs, powdered infant formula milk, mixed herbs, respectively). The main aim of this work was to introduce the SERS technique into three ISO (6579:2002; 11290-1:1996/A1:2004; 22964:2006) standard procedures required for detection of these bacteria in food...
December 21, 2016: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28002856/-the-changing-value-of-mother-s-milk-feeding-premature-and-sick-newborns-since-the-late-19th-century
#11
A Sunder-Plaßmann
In the 1960s/early 70s there was a widespread conviction in West Germany that mother's milk was no longer essential even for premature infants given the availability of improved industrial milk products. But today the superiority of human milk is again undisputed, and progress in neonatology has created a growing target group of extremely premature infants who show clear benefits from being fed with human milk, particularly regarding improved outcomes. Currently there is a revival of donor milk banks (FMB)...
December 2016: Zeitschrift Für Geburtshilfe und Neonatologie
https://www.readbyqxmd.com/read/28002476/bg10-a-novel-metagenomics-alcohol-tolerant-and-glucose-stimulated-gh1-%C3%A3-glucosidase-suitable-for-lactose-free-milk-preparation
#12
Elisângela Soares Gomes-Pepe, Elwi Guillermo Machado Sierra, Mariana Rangel Pereira, Tereza Cristina Luque Castellane, Eliana Gertrudes de Macedo Lemos
New ß-glucosidases with product (glucose) or ethanol tolerances are greatly desired to make industrial processes more marketable and efficient. Therefore, this report describes the in silico/vitro characterization of Bg10, a metagenomically derived homodimeric ß-glucosidase that exhibited a Vmax of 10.81 ± 0.43 μM min-1, Kcat of 175.1± 6.91 min-1, and Km of 0.49 ± 0.12 mM at a neutral pH and 37°C when pNP-ß-D-glucopyranoside was used as the substrate, and the enzyme retained greater than 80% activity within the respective pH and temperature ranges of 6...
2016: PloS One
https://www.readbyqxmd.com/read/27988825/milk-and-dairy-products-intake-is-associated-with-low-levels-of-lead-pb-in-workers-highly-exposed-to-the-metal
#13
Willian Robert Gomes, Paula Pícoli Devóz, Marília Ladeira Araújo, Bruno Lemos Batista, Fernando Barbosa, Gustavo Rafael Mazzaron Barcelos
Lead (Pb) is a toxic metal, frequently associated with occupational exposure, due to its widespread use in industry and several studies have shown high Pb levels in workers occupationally exposed to the metal. The aim of this study was to evaluate the influence of milk and dairy products (MDP) on Pb levels in blood (B-Pb), plasma (P-Pb), and urine (U-Pb), in workers from automotive battery industries in Brazil. The study included 237 male workers; information concerning diet and lifestyle were gathered through a questionnaire, and B-Pb, P-Pb, and U-Pb were determined by ICP-MS...
December 17, 2016: Biological Trace Element Research
https://www.readbyqxmd.com/read/27981504/isolation-identification-and-screening-of-potential-probiotic-bacteria-in-milk-from-south-african-saanen-goats
#14
Goitsemang Makete, Olayinka A Aiyegoro, Mapitsi S Thantsha
This study aimed to evaluate lactic acid bacteria isolates from Saanen goats' milk for probiotic attributes, thereby determining their potential as direct-fed microbials for goats. Isolates were identified using API 50CH system, 16S rDNA sequencing and matrix-assisted laser desorption ionization-time of flight mass spectrometry. All 17 isolates obtained were identified as Lactobacillus plantarum except one identified as Pediococcus acidilactici. Four isolates identified as L. plantarum (Accession numbers KJ026587...
December 15, 2016: Probiotics and Antimicrobial Proteins
https://www.readbyqxmd.com/read/27979232/influence-of-storage-and-heating-on-protein-glycation-levels-of-processed-lactose-free-and-regular-bovine-milk-products
#15
Sanja Milkovska-Stamenova, Ralf Hoffmann
Thermal treatment preserves the microbiological safety of milk, but also induces Maillard reactions modifying for example proteins. The purpose of this study was evaluating the influence of consumer behaviors (storage and heating) on protein glycation degrees in bovine milk products. Lactosylation and hexosylation sites were identified in ultra-high temperature (UHT), lactose-free pasteurized, and lactose-free UHT milk (ULF) and infant formula (IF) using tandem mass spectrometry (electron transfer dissociation)...
April 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27958459/modeling-photon-transport-in-turbid-media-for-measuring-colloidal-concentration-in-drops-using-the-time-shift-technique
#16
Simon Rosenkranz, Walter Schäfer, Cameron Tropea, Abdelhak M Zoubir
Colloidal drops-suspensions, dispersions, emulsions-are widespread in the process industry but are difficult to characterize by size, velocity, and concentration of particulate matter in the drop. The present study investigates the use of the time-shift (TS) technique for such measurements. Numerically, a model based on ray tracing is developed, incorporating interactions with randomly placed monodispersed scattering centers within the spherical drop. The model creates a random walk propagation trajectory, known from radiative transfer problems...
December 1, 2016: Applied Optics
https://www.readbyqxmd.com/read/27919692/improved-production-of-2-fucosyllactose-in-engineered-escherichia-coli-by-expressing-putative-%C3%AE-1-2-fucosyltransferase-wcfb-from-bacteroides-fragilis
#17
Young-Wook Chin, Ji-Yeong Kim, Jae-Han Kim, Sang-Min Jung, Jin-Ho Seo
2'-Fucosyllactose (2-FL) is one of most abundant oligosaccharides in human milk, which is involved in many biological functions for infant health. Since 2-FL has a great potential in application to functional food materials and pharmaceuticals, several microbial systems for mass production of 2-FL have been developed in recent years. Microbial production of 2-FL was suggested to be influenced by a number of factors including fucosylation activity of α-1,2-fucosyltransferase. In the present study, the wcfB gene coding for α-1,2-fucosyltransferase from Bacteroides fragilis was screened from eleven candidates of putative α-1,2-fucosyltransferase...
December 2, 2016: Journal of Biotechnology
https://www.readbyqxmd.com/read/27919152/-monitoring-plan-of-environmental-contaminants-in-sheep-milk-from-areas-next-to-an-italian-contaminated-site-named-%C3%A2-aree-industriali-di-porto-torres-e-discarica-di-calancoi%C3%A2-industrial-areas-of-porto-torres-and-landfill-of-calancoi-in-sardinia-region-southern
#18
Francesco Sgarangella, Giuseppe Bitti, Maria Caterina Suelzu, Pietro Desini, Patrizia Piras, Gianuario Fiori, Maurizio Cossu, Giannina Chessa
OBJECTIVES: to assess concentration levels of dioxins, PCBs, and chemical elements in sheep milk produced in areas close to the Italian contaminated site (CS) located in the North-West of Sardinia (Southern Italy), named «Aree industriali di Porto Torres e discarica di Calancoi» (i.e., industrial areas of Porto Torres and landfill of Calancoi). DESIGN: monitoring plan of environmental contaminants on zootechnical productions based on analysis of dioxins, PCBs, heavy metals (Cd, Hg, Pb), and other elements (As, Be, Cr, Ni, Tl , Zn) in sheep bulk milk...
November 2016: Epidemiologia e Prevenzione
https://www.readbyqxmd.com/read/27912754/bovine-mastitis-prevalence-risk-factors-and-isolation-of-staphylococcus-aureus-in-dairy-herds-at-hawassa-milk-shed-south-ethiopia
#19
Rahmeto Abebe, Hagere Hatiya, Mesele Abera, Bekele Megersa, Kassahun Asmare
BACKGROUND: Mastitis is a disease of major economic importance in dairy industry worldwide. It is of particular concern in developing countries like Ethiopia, where milk and milk products are scarce. The objectives of the study were to estimate the prevalence of mastitis, identify the cow-and herd-level potential risk factors and isolate Staphylococcus aureus, one of etiological agents for contagious mastitis, from cows positive for mastitis. A total of 529 lactating cows selected randomly from 95 herds were screened by California mastitis test (CMT) for sub-clinical mastitis...
December 3, 2016: BMC Veterinary Research
https://www.readbyqxmd.com/read/27890004/lactic-acid-bacteria-as-cell-factories-for-the-generation-of-bioactive-peptides
#20
Lucía Brown, Esteban Vera Pingitore, Fernanda Mozzi, Lucila Saavedra, Josefina M Villegas, Elvira M Hebert
There is a growing interest in the incorporation of functional foods in the daily diet to achieve health promotion and disease risk reduction. Numerous studies have focused on the production of biologically active peptides as nutraceuticals and functional food ingredients due to their health benefits. These short peptides, displaying antihypertensive, antioxidant, mineral binding, immunomodulatory and antimicrobial activities are hidden in a latent state within the primary sequences of food proteins requiring enzymatic proteolysis for their release...
November 23, 2016: Protein and Peptide Letters
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