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https://www.readbyqxmd.com/read/28641511/microbial-lipase-mediated-by-health-beneficial-modification-of-cholesterol-and-flavors-in-food-products-a-review
#1
Ranjana Sharma, Nivedita Sharma
BACKGROUND: The tremendous need of lipase in varied applications in biotechnological increases its economical value in food and allied industries. Lipase has an impressive number of applications viz. enhancements of flavor in food products (Cheese, butter, alcoholic beverages, milk chocolate and diet control food stuffs), detergent industry in removing oil, grease stain, organic chemical processing, textile industry, oleochemical industry, cosmetic industry and also as therapeutic agents in pharmaceutical industries...
June 14, 2017: Recent Patents on Biotechnology
https://www.readbyqxmd.com/read/28637531/minimising-generation-of-acid-whey-during-greek-yoghurt-manufacturing
#2
Gangani Uduwerella, Jayani Chandrapala, Todor Vasiljevic
Greek yoghurt, a popular dairy product, generates large amounts of acid whey as a by-product during manufacturing. Post-processing treatment of this stream presents one of the main concerns for the industry. The objective of this study was to manipulate initial milk total solids content (15, 20 or 23 g/100 g) by addition of milk protein concentrate, thus reducing whey expulsion. Such an adjustment was investigated from the technological standpoint including starter culture performance, chemical and physical properties of manufactured Greek yoghurt and generated acid whey...
June 22, 2017: Journal of Dairy Research
https://www.readbyqxmd.com/read/28625996/natural-dna-transformation-is-functional-in-lactococcus-lactis-ssp-cremoris-kw2
#3
Blandine David, Amandine Radziejwoski, Frédéric Toussaint, Laetitia Fontaine, Marie Henry de Frahan, Cédric Patout, Sabine van Dillen, Patrick Boyaval, Philippe Horvath, Christophe Fremaux, Pascal Hols
Lactococcus lactis is one of the most commonly used lactic acid bacteria in the dairy industry. Activation of competence for natural DNA transformation in this species would greatly improve the selection of novel strains with desired genetic traits. Here, we investigated the activation of natural transformation in L. lactis ssp. cremoris KW2, a strain of plant origin whose genome encodes the master competence regulator ComX and the complete set of proteins usually required for natural transformation. In the absence of knowledge about competence regulation in this species, we constitutively overproduced ComX in a reporter strain of late competence phase activation and showed, by transcriptomic analyses, a ComX-dependent induction of all key competence genes...
June 16, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28622786/dairy-cow-disability-weights
#4
Craig S McConnel, Ashleigh A McNeil, Joleen C Hadrich, Jason E Lombard, Franklyn B Garry, Jane Heller
Over the past 175 years, data related to human disease and death have progressed to a summary measure of population health, the Disability-Adjusted Life Year (DALY). As dairies have intensified there has been no equivalent measure of the impact of disease on the productive life and well-being of animals. The development of a disease-adjusted metric requires a consistent set of disability weights that reflect the relative severity of important diseases. The objective of this study was to use an international survey of dairy authorities to derive disability weights for primary disease categories recorded on dairies...
August 1, 2017: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/28603703/antioxidant-capability-of-ultra-high-temperature-milk-and-ultra-high-temperature-soy-milk-and-their-fermented-products-determined-by-four-distinct-spectrophotometric-methods
#5
Sahar Torki Baghbadorani, Mohammad Reza Ehsani, Maryam Mirlohi, Hamid Ezzatpanah, Leila Azadbakht, Mina Babashahi
BACKGROUND: Due to the recent emerging information on the antioxidant properties of soy products, substitution of soy milk for milk in the diet has been proposed by some nutritionists. We aimed to compare four distinct antioxidant measuring methods in the evaluation of antioxidant properties of industrial ultra-high temperature (UHT) milk, UHT soy milk, and their fermented products by Lactobacillus plantarum A7. MATERIALS AND METHODS: Ascorbate auto-oxidation inhibition assay, 2,2-diphenyl-1-picryl-hydrazyl-hydrate (DPPH) free radical scavenging method, hydrogen peroxide neutralization assay and reducing activity test were compared for the homogeneity and accuracy of the results...
2017: Advanced Biomedical Research
https://www.readbyqxmd.com/read/28601460/production-and-economic-responses-to-intensification-of-pasture-based-dairy-production-systems
#6
K A Macdonald, J W Penno, J A S Lancaster, A M Bryant, J M Kidd, J R Roche
Production from pasture-based dairy farms can be increased through using N fertilizer to increase pasture grown, increasing stocking rate, importing feeds from off farm (i.e., supplementary feeds, such as cereal silages, grains, or co-product feeds), or through a combination of these strategies. Increased production can improve profitability, provided the marginal cost of the additional milk produced is less than the milk price received. A multiyear production system experiment was established to investigate the biological and economic responses to intensification on pasture-based dairy farms; 7 experimental farmlets were established and managed independently for 3 yr...
June 7, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28601453/efficacy-and-clinical-safety-of-pegbovigrastim-for-preventing-naturally-occurring-clinical-mastitis-in-periparturient-primiparous-and-multiparous-cows-on-us-commercial-dairies
#7
Peter Canning, Renee Hassfurther, Terry TerHune, Karen Rogers, Scott Abbott, David Kolb
Periparturient dairy cows experience impaired immune function, exhibited as a transient decrease in neutrophil function and neutropenia. This decrease in immune competence is associated with an increase in susceptibility to bacterial infections, including mastitis and metritis. Bovine granulocyte colony stimulating factor (bG-CSF) is an endogenous protein that enhances neutrophil bactericidal functions and increases the production of neutrophils from bone marrow precursors. Administration of pegbovigrastim (recombinant bG-CSF covalently bound to polyethylene glycol) around the time of calving has been shown to reduce the incidence of new clinical mastitis cases in a natural disease model system...
June 7, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28594955/inorganic-salts-and-intracellular-polyphosphate-inclusions-play-a-role-in-the-thermotolerance-of-the-immunobiotic-lactobacillus-rhamnosus-crl-1505
#8
María A Correa Deza, Mariana Grillo-Puertas, Susana Salva, Viviana A Rapisarda, Carla L Gerez, Graciela Font de Valdez
In this work, the thermotolerance of Lactobacillus rhamnosus CRL1505, an immunobiotic strain, was studied as a way to improve the tolerance of the strain to industrial processes involving heat stress. The strain displayed a high intrinsic thermotolerance (55°C, 20 min); however, after 5 min at 60°C in phosphate buffer a two log units decrease in cell viability was observed. Different heat shock media were tested to improve the cell survival. Best results were obtained in the mediumcontaining inorganic salts (KH2PO4, Na2HPO4, MnSO4, and MgSO4) likely as using 10% skim milk...
2017: PloS One
https://www.readbyqxmd.com/read/28578063/aroma-related-cross-modal-interactions-for-sugar-reduction-in-milk-desserts-influence-on-consumer-perception
#9
Florencia Alcaire, Lucía Antúnez, Leticia Vidal, Ana Giménez, Gastón Ares
Reformulation of industrialized products has been regarded as one of the most cost-effective strategies to reduce sugar intake. Although non-nutritive sweeteners have been extensively used to reduce the added sugar content of these products, increasing evidence about the existence of compensatory energy intake mechanisms makes it necessary to develop alternative strategies to achieve rapid sugar reductions. In this context, the aim of the present work was to evaluate aroma-related cross modal interactions for sugar reduction in vanilla milk desserts...
July 2017: Food Research International
https://www.readbyqxmd.com/read/28577554/fermentation-of-lactose-to-ethanol-in-cheese-whey-permeate-and-concentrated-permeate-by-engineered-escherichia-coli
#10
Lorenzo Pasotti, Susanna Zucca, Michela Casanova, Giuseppina Micoli, Maria Gabriella Cusella De Angelis, Paolo Magni
BACKGROUND: Whey permeate is a lactose-rich effluent remaining after protein extraction from milk-resulting cheese whey, an abundant dairy waste. The lactose to ethanol fermentation can complete whey valorization chain by decreasing dairy waste polluting potential, due to its nutritional load, and producing a biofuel from renewable source at the same time. Wild type and engineered microorganisms have been proposed as fermentation biocatalysts. However, they present different drawbacks (e...
June 2, 2017: BMC Biotechnology
https://www.readbyqxmd.com/read/28576357/industrial-scale-application-of-lactobacillus-reuteri-coupled-with-glycerol-as-a-biopreservation-system-for-inhibiting-clostridium-tyrobutyricum-in-semi-hard-ewe-milk-cheese
#11
Marta Ávila, Natalia Gómez-Torres, David Delgado, Pilar Gaya, Sonia Garde
The suitability of the biopreservation system formed by reuterin-producing L. reuteri INIA P572 and glycerol (required for reuterin production) to prevent late blowing defect (LBD) was evaluated in industrial sized semi-hard ewe milk cheese contaminated with Clostridium tyrobutyricum INIA 68, a wild strain isolated from a LBD cheese. For this purpose, six batches of cheese were made (three with and three without clostridial spores): control cheeses with lactococci starter, cheeses with L. reuteri as adjunct, and cheeses with L...
September 2017: Food Microbiology
https://www.readbyqxmd.com/read/28574304/quantitative-risk-assessment-of-antimicrobial-resistant-foodborne-infections-in-humans-due-to-recombinant-bovine-somatotropin-usage-in-dairy-cows
#12
Randall S Singer, Pamela L Ruegg, Dale E Bauman
Recombinant bovine somatotropin (rbST) is a production-enhancing technology that allows the dairy industry to produce milk more efficiently. Concern has been raised that cows supplemented with rbST are at an increased risk of developing clinical mastitis, which would potentially increase the use of antimicrobial agents and increase human illnesses associated with antimicrobial-resistant bacterial pathogens delivered through the dairy beef supply. The purpose of this study was to conduct a quantitative risk assessment to estimate the potential increased risk of human infection with antimicrobial-resistant bacteria and subsequent adverse health outcomes as a result of rbST usage in dairy cattle...
June 2, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28572792/lactic-acid-bacteria-and-bifidobacteria-with-potential-to-design-natural-biofunctional-health-promoting-dairy-foods
#13
REVIEW
Daniel M Linares, Carolina Gómez, Erica Renes, José M Fresno, María E Tornadijo, R P Ross, Catherine Stanton
Consumer interest in healthy lifestyle and health-promoting natural products is a major driving force for the increasing global demand of biofunctional dairy foods. A number of commercial sources sell synthetic formulations of bioactive substances for use as dietary supplements. However, the bioactive-enrichment of health-oriented foods by naturally occurring microorganisms during dairy fermentation is in increased demand. While participating in milk fermentation, lactic acid bacteria can be exploited in situ as microbial sources for naturally enriching dairy products with a broad range of bioactive components that may cover different health aspects...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28571984/processing-characteristics-of-dairy-cow-milk-are-moderately-heritable
#14
G Visentin, S McParland, M De Marchi, A McDermott, M A Fenelon, M Penasa, D P Berry
Milk processing attributes represent a group of milk quality traits that are important to the dairy industry to inform product portfolio. However, because of the resources required to routinely measure such quality traits, precise genetic parameter estimates from a large population of animals are lacking for these traits. Milk processing characteristics considered in the present study-rennet coagulation time, curd-firming time, curd firmness at 30 and 60 min after rennet addition, heat coagulation time, casein micelle size, and milk pH-were all estimated using mid-infrared spectroscopy prediction equations...
May 29, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28561787/production-of-recombinant-antimicrobial-polymeric-protein-beta-casein-e-50-52-and-its-antimicrobial-synergistic-effects-assessment-with-thymol
#15
Shohreh Fahimirad, Hamid Abtahi, Seyed Hadi Razavi, Houshang Alizadeh, Mansour Ghorbanpour
Accelerating emergence of antimicrobial resistance among food pathogens and consumers' increasing demands for preservative-free foods are two contemporary challenging aspects within the food industry. Antimicrobial packaging and the use of natural preservatives are promising solutions. In the present study, we used beta-casein-one of the primary self-assembly proteins in milk with a high polymeric film production capability-as a fusion partner for the recombinant expression of E 50-52 antimicrobial peptide in Escherichia coli...
May 31, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28559730/general-characteristics-and-treatment-possibilities-of%C3%A2-dairy-wastewater-a-review
#16
REVIEW
Aleksandar Kolev Slavov
The milk processing industry is one of the world's staple industries, thus the treatment possibilities of dairy effluents have been attracting more and more attention. The purpose of the paper is to review contemporary research on dairy wastewater. The origin, categories, as well as liquid by-products and general indicators of real dairy wastewater are described. Different procedures applied for dairy wastewater management are summarised. Attention is focused on in-factory treatment technologies with the emphasis on biological processes...
March 2017: Food Technology and Biotechnology
https://www.readbyqxmd.com/read/28559484/finding-the-needle-in-the-haystack-the-use-of-microfluidic-droplet-technology-to-identify-vitamin-secreting-lactic-acid-bacteria
#17
Jun Chen, Mike Vestergaard, Thomas Glasdam Jensen, Jing Shen, Martin Dufva, Christian Solem, Peter Ruhdal Jensen
Efficient screening technologies aim to reduce both the time and the cost required for identifying rare mutants possessing a phenotype of interest in a mutagenized population. In this study, we combined a mild mutagenesis strategy with high-throughput screening based on microfluidic droplet technology to identify Lactococcus lactis variants secreting vitamin B2 (riboflavin). Initially, we used a roseoflavin-resistant mutant of L. lactis strain MG1363, JC017, which secreted low levels of riboflavin. By using fluorescence-activated droplet sorting, several mutants that secreted riboflavin more efficiently than JC017 were readily isolated from the mutagenesis library...
May 30, 2017: MBio
https://www.readbyqxmd.com/read/28556679/molecular-characterization-and-risk-assessment-of-bacillus-cereus-sensu-lato-isolated-from-ultrahigh-temperature-and-pasteurized-milk-marketed-in-rio-de-janeiro-brazil
#18
Jeane Q Chaves, Eislaine P de Paiva, Leon Rabinovitch, Adriana M Vivoni
The presence of Bacillus cereus in milk is a major concern in the dairy industry. In this study 27 Bacillus cereus sensu lato isolates from pasteurized and ultrahigh-temperature (UHT) milk (24 whole UHT and 4 pasteurized samples) collected at supermarket chains in Rio de Janeiro, Brazil, were evaluated to assess the potential risk for food poisoning. Toxigenic and virulence profiles were defined by gene-specific PCR. Affiliation to phylogenetic groups was assigned by panC sequencing. Microbiological analysis revealed the presence of B...
May 30, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28551193/drivers-of-choice-for-fluid-milk-versus-plant-based-alternatives-what-are-consumer-perceptions-of-fluid-milk
#19
K S McCarthy, M Parker, A Ameerally, S L Drake, M A Drake
Fluid milk consumption has declined for decades while consumption of nondairy alternatives has increased. A better understanding of why consumers purchase fluid milk or nondairy alternatives is needed to assist increased sales of milk or maintain sales without further decline. The objective of this study was to determine the extrinsic attributes that drive purchase within each product category. The second objective was to determine the personal values behind the purchase of each beverage type to give further understanding why particular attributes are important...
May 24, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28550782/immunofluorescence-evaluation-of-4-hydroxynonenal-and-8-hydroxy-2-deoxyguanosine-activation-in-zebrafish-daino-rerio-larvae-brain-exposed-microinjected-to-propyl-gallate
#20
Ahmet Topal, Selim Çomakli, Mustafa Özkaraca, Alper Baran, Mine Köktürk, Veysel Parlak, Yavuz Selim Sağlam, Muhammed Atamanalp, Saltuk Buğrahan Ceyhun
Propyl gallate (PG) is a chemical compound obtained by esterification of propanol with gallic acid. Due to its antioxidative properties, it is widely used in cosmetics and pharmaceutical industries as well as to protect the oils in foods such as butter, milk-based desserts, chewing gum, mayonnaise, meat, soups, cereals, spices and seasonings from rancidity. This study has been designed to assessment 8-OHdG and 4-HNE activity, and histopathological changes in the brain tissues of zebrafish larvae, which is a lecithotrophic organism, after 96 h of PG exposure via microinjecting to yolk sac of embryo...
May 19, 2017: Chemosphere
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