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https://www.readbyqxmd.com/read/28208877/evaluation-of-antibiotic-residues-in-pasteurized-and-raw-milk-distributed-in-the-south-of-khorasan-e-razavi-province-iran
#1
Mortez Mohammadzadeh Moghadam, Mostafa Amiri, Hamed Ramezani Awal Riabi, Hamid Ramezani Awal Riabi
INTRODUCTION: The presence of antibiotic residues in milk and other products livestock is a health problem which can endanger public health. Antibiotics are used widely in animal husbandry to treat diseases related to bacterial infections. Antimicrobial drugs have been in use for decades in industry. They are commonly used in livestock facilities to treat mastitis. AIM: This study aimed to investigate antibiotic residues in pasteurized milk distributed in schools, in milk collection centers, and in milk production factories in Gonabad city...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28207305/heavy-metal-presence-in-two-different-types-of-ice-cream-artisanal-ice-cream-italian-gelato-and-industrial-ice-cream
#2
D Conficoni, L Alberghini, E Bissacco, M Ferioli, V Giaccone
Ice cream, a popular product worldwide, is usually a milk-based product with other types of ingredients (fruit, eggs, cocoa, dried fruit, additives, and others). Different materials are used to obtain the desired taste, texture, consistency, and appearance of the final product. This study surveyed ice cream products available in Italy for heavy metals (lead, cadmium, chromium, tin, and arsenic). The differences between artisanal and industrial ice cream were also investigated because of the importance in the Italian diet and the diffusion of this ready-to-eat food...
February 16, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28202015/variant-discovery-in-the-sheep-milk-transcriptome-using-rna-sequencing
#3
Aroa Suárez-Vega, Beatriz Gutiérrez-Gil, Christophe Klopp, Gwenola Tosser-Klopp, Juan José Arranz
BACKGROUND: The identification of genetic variation underlying desired phenotypes is one of the main challenges of current livestock genetic research. High-throughput transcriptome sequencing (RNA-Seq) offers new opportunities for the detection of transcriptome variants (SNPs and short indels) in different tissues and species. In this study, we used RNA-Seq on Milk Sheep Somatic Cells (MSCs) with the goal of characterizing the genetic variation within the coding regions of the milk transcriptome in Churra and Assaf sheep, two common dairy sheep breeds farmed in Spain...
February 15, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28197144/detection-and-enumeration-of-spore-forming-bacteria-in-powdered-dairy-products
#4
REVIEW
Aoife J McHugh, Conor Feehily, Colin Hill, Paul D Cotter
With the abolition of milk quotas in the European Union in 2015, several member states including Ireland, Luxembourg, and Belgium have seen year on year bi-monthly milk deliveries to dairies increase by up to 35%. Milk production has also increased outside of Europe in the past number of years. Unsurprisingly, there has been a corresponding increased focus on the production of dried milk products for improved shelf life. These powders are used in a wide variety of products, including confectionery, infant formula, sports dietary supplements and supplements for health recovery...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28193432/biochemical-and-milk-clotting-properties-and-mapping-of-catalytic-subsites-of-an-extracellular-aspartic-peptidase-from-basidiomycete-fungus-phanerochaete-chrysosporium
#5
Ronivaldo Rodrigues da Silva, Lilian Caroline Gonçalves de Oliveira, Maria Aparecida Juliano, Luiz Juliano, Arthur H C de Oliveira, Jose C Rosa, Hamilton Cabral
For a long time, proteolytic enzymes have been employed as key tools of industrial processes, especially in the dairy industry. In the present work, we used Phanerochaete chrysosporium for biochemical characterization and analysis of catalytic specificity of an aspartic peptidase. Our results revealed an aspartic peptidase with molecular mass ∼38kDa, maximal activity at pH 4.5 and 50°C, and stability above 80% in the pH range of 3-8 and temperature up to 55°C for 1h. In a milk-clotting assay, this peptidase showed maximal milk clotting activity at 60-65°C and maintenance of enzymatic activity above 80% in the presence of 20mM CaCl2...
June 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28193420/reaction-kinetics-and-galactooligosaccharide-product-profiles-of-the-%C3%AE-galactosidases-from-bacillus-circulans-kluyveromyces-lactis-and-aspergillus-oryzae
#6
Huifang Yin, Jelle B Bultema, Lubbert Dijkhuizen, Sander S van Leeuwen
β-Galactosidase enzymes are used in the dairy industry to convert lactose into galactooligosaccharides (GOS) that are added to infant formula to mimic the molecular sizes and prebiotic functions of human milk oligosaccharides. Here we report a detailed analysis of the clearly different GOS profiles of the commercial β-galactosidases from Bacillus circulans, Kluyveromyces lactis and Aspergillus oryzae. Also the GOS yields of these enzymes differed, varying from 48.3% (B. circulans) to 34.9% (K. lactis), and 19...
June 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28191311/supplemental-smartamine-m-in-higher-energy-diets-during-the-prepartal-period-improves-hepatic-biomarkers-of-health-and-oxidative-status-in-holstein-cows
#7
Mario Vailati-Riboni, Johan S Osorio, Erminio Trevisi, Daniel Luchini, Juan J Loor
BACKGROUND: Feeding higher-energy prepartum is a common practice in the dairy industry. However, recent data underscore how it could reduce performance, deepen negative energy balance, and augment inflammation and oxidative stress in fresh cows. We tested the effectiveness of rumen-protected methionine in preventing the negative effect of feeding a higher-energy prepartum. Multiparous Holstein cows were fed a control lower-energy diet (CON, 1.24 Mcal/kg DM; high-straw) during the whole dry period (~50 d), or were switched to a higher-energy (OVE, 1...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28185933/binding-of-%C3%AE-carrageenan-a-food-additive-to-almond-cystatin-an-insight-involving-spectroscopic-and-thermodynamic-approach
#8
Azad Alam Siddiqui, Anna Feroz, Peerzada Shariq Shaheen Khaki, Bilqees Bano
Carrageenan is a high molecular weight linear sulphated polysaccharide, primarily used in food industry as gelling, thickening, and stabilizing agent. Almond milk prepared from almonds is low in fat, but high in antioxidants, energy, proteins, lipids and fibre. Purified almond cystatin was incubated with increasing concentrations of carrageenan at 25°C for different time interval and significant loss in inhibitory activity was observed. Interaction between carrageenan and cystatin resulted in complex formation as depicted by the decrease in fluorescence intensity with increase in the concentration of carrageenan...
February 6, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28181598/raman-on-a-disc-high-quality-raman-spectroscopy-in-an-open-channel-on-a-centrifugal-microfluidic-disc
#9
J W Martin, M K Nieuwoudt, M J T Vargas, O L C Bodley, T S Yohendiran, R N Oosterbeek, D E Williams, M Cather Simpson
The implausible combination of centrifugal disc microfluidics and un-covered channels provides a simple way in which Raman spectroscopy can be implemented in industrially-relevant lab-on-a disc technology. Here we demonstrate these advantages by detecting very low concentrations of melamine in liquid milk, without pre-processing, without surface enhancement of the Raman signal and with no evidence of spectral contamination from the polymeric chip itself. A limit of detection (LOD) of 203 ppm for melamine in milk was achieved from Raman spectra of milk after drying...
February 9, 2017: Analyst
https://www.readbyqxmd.com/read/28177375/production-composition-fatty-acid-profile-and-sensory-analysis-of-goat-milk-in-goats-fed-buriti-oil
#10
J S Morais, L R Bezerra, A M A Silva, M J Araújo, R L Oliveira, R L Edvan, J N C Torreão, D P D Lanna
This study evaluated the effects of replacing ground corn with buriti oil ( L.) on feed intake and digestibility and on the production, composition, fatty acid profile and sensory characteristics of goat milk. A double Latin square (4 × 4) was used; eight goats were distributed in a completely randomized design. The square comprised four periods and four buriti oil concentration (0.00; 1.50; 3.00 and 4.50% of total DM) replacing corn. Intakes of DM, CP, NDF, ADF, non-fibrous carboydrates (NFC) and TDN were not affected by the replacement of corn with oil in the diet...
January 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28177177/purification-and-quantification-of-heavy-chain-antibodies-from-the-milk-of-bactrian-camels
#11
Hongqiang Yao, Min Zhang, Yi Li, Jirimutu Yao, He Meng, Siriguleng Yu
Camel milk has a unique composition with naturally occurring heavy-chain antibodies (HCAbs), which exert rehabilitating potencies in infection and immunity. To characterize HCAb in camel milk, immunoglobulin G (IgG) was isolated from the milk of Camelus bactrianus by a combination of affinity chromatography and sodium dodecyl sulfate polyacrylamide gel electrophoresis to purify and size-fractionate protein A and protein G, which were further identified by Western blotting, and were quantified by bicinchoninic acid (BCA) and ELISA...
February 8, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28167098/what-if-houses-were-powered-by-milk
#12
Neil Phillips, Andrew Adamatzky, Richard Mayne
Living architectures and green energy are hot topics of the applied sciences. They aim to develop buildings that co-live with their environment and co-habit with people they house. An ultimate goal would be to make every block in a building capable of producing energy. We present results of scoping, and somewhat illustrative, experiments on generating electrical energy in modified aerated concrete blocks. These blocks are commonly used in modern building industry and therefore make an ideal candidate for 'inbuilt' microbial bio-reactors...
February 3, 2017: Bio Systems
https://www.readbyqxmd.com/read/28163916/effects-of-total-replacement-of-corn-silage-with-sorghum-silage-on-milk-yield-composition-and-quality
#13
M Cattani, N Guzzo, R Mantovani, L Bailoni
BACKGROUND: In the last years, difficulties occurring in corn cultivation (i.e., groundwater shortages, mycotoxin contamination) have been forcing dairy farmers to consider alternative silages. Some experiments conducted on lactating cows have proven that the total replacement of corn silage with sorghum silage did not reduce milk yield. However, this kind of substitution involves supplementing sorghum-based diets with grains, to compensate for the lower starch content of sorghum silage compared to corn silage...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28161169/characterization-of-volatile-compounds-in-fermented-milk-using-solid-phase-microextraction-methods-coupled-with-gas-chromatography-mass-spectrometry
#14
T Dan, D Wang, R L Jin, H P Zhang, T T Zhou, T S Sun
Lactic acid bacteria (LAB) are industrially important bacteria that are widely used in the fermented food industry, especially in the manufacture of yogurt. Characteristic flavors are produced by LAB during fermentation and storage that affect the quality and acceptability of fermented milk products. In this study, the volatile compounds in milk fermented by Streptococcus thermophilus IMAU80842 alone, Lactobacillus delbrueckii ssp. bulgaricus IMAU20401 alone, or both species together were identified using solid-phase microextraction methods coupled with gas chromatography-mass spectrometry...
February 1, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28160536/impact-of-air-pollution-to-genome-of-newborns
#15
Radim J Šrám, Pavel Rössner, Andrea Rössnerová, Miroslav Dostál, Alena Milcová, Vlasta Švecová, Jana Pulkrabová, Jana Hajšlová, Miloš Velemínský
The Northern Moravia Region is the most polluted region in the Czech Republic by particulate matter (PM2.5) and carcinogenic polycyclic aromatic hydrocarbons (c-PAHs) as benzo[a]pyrene (B[a]P) by heavy industry and local heating. This specific situation was used to study the impact of air pollution on newborns in the exposed Karviná district and control district of České Budějovice. Biological material from newborns and mothers was collected in summer and winter seasons. This project is highly detailed, analyzing the concentrations of PAHs in ambient air and diet, in human breast milk, in the urine of mothers and newborns, using biomarkers of genetic damage as DNA adducts and gene expression analysis, biomarkers of oxidative stress as 8-oxodG adducts and lipid peroxidation (15-F2t-isoprostane immunoassay)...
December 2016: Central European Journal of Public Health
https://www.readbyqxmd.com/read/28159787/biofilm-formation-on-stainless-steel-in-milk-environment-is-mediated-by-the-proteinase-prts-in-streptococcus-thermophilus-uc8547
#16
D Bassi, F Cappa, S Gazzola, L Orrù, P S Cocconcelli
: In Streptococcus thermophilus gene transfer events and loss of ancestral traits during years contribute to its high adaptation to the milk environment. Biofilm formation capacity, a phenotype that is lost in the majority of strains, plays a role in the persistence in dairy environments, such as milk pasteurisation and cheese manufacturing plants. To investigate on this property, we have studied S. thermophilus UC8547, a fast acidifying dairy starter culture, selected for its high capacity to form biofilm on stainless steel in environmental conditions resembling the dairy environment...
February 3, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28159295/effect-of-tiger-nut-cyperus-esculentus-milk-co-product-on-the-surface-and-diffusional-properties-of-a-wheat-based-matrix
#17
Samuel Verdú, José M Barat, Cecibel Alava, Raúl Grau
The food processing industry generates huge volumes of waste and co-products which still contain valuable compounds. Tiger-nut milk production generates large amounts of a co-product with a high insoluble fibre content, which is interesting as a bioactive component from a nutritional viewpoint. This co-product is formed by two different tissues in composition, particle size and colour terms, so two different flours were obtained from them. Both flours were included in a wheat-based matrix at different substitution levels: 5%, 10% and 20% (d...
June 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28155071/sequential-application-of-waste-whey-as-a-medium-component-for-kluyveromyces-lactis-cultivation-and-a-co-feeder-for-lipase-immobilization-by-clea-method
#18
Aušra Veteikytė, Rimantas Šiekštelė, Bronius Tvaska, Inga Matijošytė
Currently, much attention is paid to technologies which can be drivers of the circular economy across different sectors, in particular, to develop technologies for utilization or reusability of biocompatible materials from industrial waste. One of such is the milk whey, which is a cheap biobased raw material, the disposal of which is a major problem for the dairy industry. Our proposed and investigated technology is based on a continuous exploitation of the whey combining microbiology and biotechnology. Primarily, whey was used as a nutrition source for the cultivation of Kluyveromyces lactis with the aim to produce the targeted biocatalyst-lipase...
February 2, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28149486/comparison-of-two-methods-for-detection-of-e-coli-o157h7-in-unpasteurized-milk
#19
Maryam Farahmandfar, Naghmeh Moori-Bakhtiari, Saad Gooraninezhad, Mehdi Zarei
BACKGROUND AND OBJECTIVES: The most common serotype of enterohaemorrhagic Esherichia coli group or Shiga-toxin-producing E. coli is O157:H7. Domestic and wild ruminants are regarded as the main natural reservoirs. O157:H7 serotype is the major cause of gastrointestinal infections in developed countries. In this study was conducted to survey on the toxigenic E. coli O157: H7 strains in milk of industrial dairy farms. MATERIALS AND METHODS: A total number of 150 milk samples were collected from dairy industry in Khuzestan, over a period of 6 months and were evaluated by cultivation in selective media (CT-SMAC) and multiplex PCR...
October 2016: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/28131567/short-communication-evaluation-of-a-sol-gel-based-stainless-steel-surface-modification-to-reduce-fouling-and-biofilm-formation-during-pasteurization-of-milk
#20
Dylan Zhe Liu, Shivali Jindal, Jayendra Amamcharla, Sanjeev Anand, Lloyd Metzger
Milk fouling and biofilms are common problems in the dairy industry across many types of processing equipment. One way to reduce milk fouling and biofilms is to modify the characteristics of milk contact surfaces. This study examines the viability of using Thermolon (Porcelain Industries Inc., Dickson, TN), a sol-gel-based surface modification of stainless steel, during thermal processing of milk. We used stainless steel 316L (control) and sol-gel-modified coupons in this study to evaluate fouling behavior and bacterial adhesion...
January 25, 2017: Journal of Dairy Science
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