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https://www.readbyqxmd.com/read/28636003/in-vitro-modulation-of-gut-microbiota-by-whey-protein-to-preserve-intestinal-health
#1
T Sánchez-Moya, R López-Nicolás, D Planes, C A González-Bermúdez, G Ros-Berruezo, C Frontela-Saseta
The effect of several types of whey milk - cow, sheep, goat and a mixture of them (60 : 20 : 20, respectively) - was assessed in the human gut microbiota. The prebiotic potential of these substrates was evaluated through in vitro gastrointestinal digestion following faecal batch culture fermentations (mimicking colonic fermentation) for 48 hours, using faeces from normal-weight (NW) and obese (OB) donors. Throughout the fermentation process, pH, gas production, short chain and branched fatty acids (SCFA-BCFA) were measured, as well as the changes of microbiota using qPCR...
June 21, 2017: Food & Function
https://www.readbyqxmd.com/read/28633512/media-optimization-for-economic-succinic-acid-production-by-enterobacter-sp-lu1
#2
Marcin Podleśny, Agnieszka Kubik-Komar, Jagoda Kucharska, Jakub Wyrostek, Piotr Jarocki, Zdzisław Targoński
Enterobacter sp. LU1 could efficiently convert glycerol to succinic acid under anaerobic conditions after the addition of lactose. In this study, media constituents affecting both Enterobacter sp. LU1 biomass and succinic acid production were investigated employing response surface methodology (RSM) with central composite design. Statistical methods led to the development of an efficient and inexpensive microbiological media based on crude glycerol, whey permeate as carbon sources and urea as a nitrogen source...
December 2017: AMB Express
https://www.readbyqxmd.com/read/28630695/newly-formulated-protein-quality-enhanced-extruded-sorghum-cowpea-corn-soya-sugar-and-oil-containing-fortified-blended-foods-lead-to-adequate-vitamin-a-and-iron-outcomes-and-improved-growth-compared-with-non-extruded-csb-in-rats
#3
Nicole M Delimont, Nicole M Fiorentino, Alexander B Opoku-Acheampong, Michael V Joseph, Qingbin Guo, Sajid Alavi, Brian L Lindshield
Corn and soyabean micronutrient-fortified-blended foods (FBF) are commonly used for food aid. Sorghum and cowpeas have been suggested as alternative commodities because they are drought tolerant, can be grown in many localities, and are not genetically modified. Change in formulation of blends may improve protein quality, vitamin A and Fe availability of FBF. The primary objective of this study was to compare protein efficiency, Fe and vitamin A availability of newly formulated extruded sorghum-, cowpea-, soya- and corn-based FBF, along with a current, non-extruded United States Agency for International Development (USAID) corn and soya blend FBF (CSB+)...
2017: Journal of Nutritional Science
https://www.readbyqxmd.com/read/28630576/no-effect-of-a-whey-growth-factor-extract-during-resistance-training-on-strength-body-composition-or-hypertrophic-gene-expression-in-resistance-trained-young-men
#4
Michael J Dale, Alison M Coates, Peter R C Howe, Grant R Tomkinson, Matthew T Haren, Andrew Brown, Marissa Caldow, David Cameron-Smith, Jonathan D Buckley
Growth factors can be isolated from bovine milk to form a whey growth factor extract (WGFE). This study examined whether WGFE promoted activation of the AKT/mTOR pathway enabling increased lean tissue mass and strength in resistance trained men. Forty six men with >6 months of resistance training (RT) experience performed 12 weeks of RT. Participants consumed 20 g/day of whey protein and were randomised to receive either 1.6 g WGFE/day (WGFE; n = 22) or 1.6 g cellulose/day (control, CONT; n = 24). The primary outcome was leg press one-repetition maximum (LP1-RM) which was assessed at baseline, 6 and 12 weeks...
June 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28627401/educational-nutrition-messaging-at-breakfast-reduces-snack-intake-and-influences-snack-preferences-in-adult-men-and-women
#5
Jamie I Baum, Brianna L Gaines, Gabrielle C Kubas, Charlayne F Mitchell, Sarah L Russell
Breakfast skipping is associated with increased risk of weight gain and obesity in young adults, possibly due to increased snacking later in the day. Recent research suggests that providing and animal versus a plant source of protein at breakfast can reduce snack intake later in the day. In addition, providing nutrition information via a nutrition label, front-of-pack information, or via text messaging has been shown to help individuals make healthier food choices. The objective of this study was to determine if educational nutrition messaging and protein source influenced snack intake 2 h following the breakfast meal...
June 13, 2017: Appetite
https://www.readbyqxmd.com/read/28624284/comparing-the-effect-of-homogenization-and-heat-processing-on-the-properties-and-in-vitro-digestion-of-milk-from-organic-and-conventional-dairy-herds
#6
D L Van Hekken, M H Tunick, D X Ren, P M Tomasula
We compared the effects of homogenization and heat processing on the chemical and in vitro digestion traits of milk from organic and conventional herds. Raw milk from organic (>50% of dry matter intake from pasture) and conventional (no access to pasture) farms were adjusted to commercial whole and nonfat milk fat standards, and processed with or without homogenization, and with high-temperature-short-time or UHT pasteurization. The milk then underwent in vitro gastrointestinal digestion. Comparison of milk from organic and conventional herds showed that the milks responded to processing in similar ways...
June 14, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28624276/cow-and-environmental-factors-associated-with-protein-fractions-and-free-amino-acids-predicted-using-mid-infrared-spectroscopy-in-bovine-milk
#7
A McDermott, M De Marchi, D P Berry, G Visentin, M A Fenelon, N Lopez-Villalobos, S McParland
The objective of the present study was to identify the factors associated with both the protein composition and free amino acid (FAA) composition of bovine milk predicted using mid-infrared spectroscopy. Milk samples were available from 7 research herds and 69 commercial herds. The spectral data from the research herds comprised 94,286 separate morning and evening milk samples; the spectral data from the commercial herds comprised 40,260 milk samples representing a composite sample of both the morning and evening milkings...
June 14, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28624082/the-influence-of-carrier-material-on-some-physical-and-structural-properties-of-carrot-juice-microcapsules
#8
Emilia Janiszewska-Turak, Nicolò Dellarosa, Urszula Tylewicz, Luca Laghi, Santina Romani, Marco Dalla Rosa, Dorota Witrowa-Rajchert
This study investigates the effect of carrier type on the physical and structural properties of microcapsules of pure carrot juice. Low-crystallised maltodextrin (MD), gum arabic (GA), mixtures of MD and GA (1:1; 2:1; 3:1) and whey protein isolate (WPI) were used as carriers. Microencapsulation was carried out in a spray-drier at inlet air temperature of 160°C. Powders were investigated for dry matter, water activity, diameter, carotene content and hygroscopicity. In addition, differential scanning calorimetry (DSC) and time domain nuclear magnetic resonance (TD-NMR) were applied to analyse microcapsules glass transition temperature (Tg)...
December 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28623565/the-novel-oleaginous-bacterium-sphingomonas-sp-egy1-dsm-29616-a-value-added-platform-for-renewable-biodiesel
#9
Nehad N Amer, Yasser Elbahloul, Amira M Embaby, Ahmed Hussein
Oleaginous microorganisms are regarded as efficient, renewable cell factories for lipid biosynthesis, a biodiesel precursor, to overwhelm the cosmopolitan energy crisis with affordable investment capital costs. Present research highlights production and characterization of lipids by a newly isolated oleaginous bacterium, Sphingomonas sp. EGY1 DSM 29616 through an eco-friendly approach. Only sweet whey [42.1% (v/v)] in tap water was efficiently used as a growth medium and lipid production medium to encourage cell growth and trigger lipid accumulation simultaneously...
July 2017: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28621401/encapsulation-of-sour-cherry-pomace-extract-by-freeze-drying-characterization-and-storage-stability
#10
Vesna Šaponjac, Gordana Ćetković, Jasna Čanadanović-Brunet, Sonja Đilas, Biljana Pajin, Jovana Petrović, Stajčić Slađana, Jelena Vulić
In this study sour cherry pomace was extracted with food-grade solvent (50% ethanol), concentrated and stabilized in whey and soy proteins by encapsulation. Soy proteins exhibited higher encapsulation efficiency (94.90%), but not significantly (p < 0.05), from whey (90.10%). Storage properties of whey (WP) and soy protein (SP) encapsulates in terms of total polyphenols, anthocyanins and antioxidant activity were tested for 6 weeks. At the end of storage period the retention of polyphenols in SP and WP was similar (67...
June 2017: Acta Chimica Slovenica
https://www.readbyqxmd.com/read/28620907/stability-of-astaxanthin-loaded-nanostructured-lipid-carriers-in-beverage-systems
#11
Fardin Tamjidi, Mohammad Shahedi, Jaleh Varshosaz, Ali Nasirpour
BACKGROUND: Nanostructured lipid carriers (NLCs) offer many potential benefits for incorporating lipophilic molecules into clear to opaque food systems. This study examined the stability of astaxanthin-loaded NLCs (Ax-NLCs) in model (solutions with 0 or 12% sucrose; pH 3, 7), semi-actual (whey) and actual (non-alcoholic beer) beverages during 30-60 days storage at 6 or 20 °C. RESULTS: Ax-NLCs (Z-average size: 94 nm), containing α-tocopherol and EDTA as antioxidants, were stabilized with Tween 80 and lecithin, and mixed with the aforementioned beverages at the volume ratio of 3:97...
June 16, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28620481/tolerability-and-safety-of-the-intake-of-bovine-milk-oligosaccharides-extracted-from-cheese-whey-in-healthy-human-adults
#12
Jennifer T Smilowitz, Danielle G Lemay, Karen M Kalanetra, Elizabeth L Chin, Angela M Zivkovic, Melissa A Breck, J Bruce German, David A Mills, Carolyn Slupsky, Daniela Barile
Mechanistic research suggests a unique evolutionary relationship between complex milk oligosaccharides and cognate bifidobacteria enriched in breast-fed infants. Bovine milk oligosaccharides (BMO) were recently identified as structurally and functionally similar to human milk oligosaccharides. The present single-blind three-way crossover study is the first to determine the safety and tolerability of BMO consumption by healthy human participants (n 12) and its effects on faecal microbiota and microbial metabolism...
2017: Journal of Nutritional Science
https://www.readbyqxmd.com/read/28613401/nutrient-profiles-and-volatile-odorous-compounds-of-raw-milk-after-exposure-to-electron-beam-pasteurizing-doses
#13
Lindsay R Ward, Chris R Kerth, Suresh D Pillai
Raw milk is known to contain relatively high numbers of microorganisms, some of which include microbial pathogens. Electron beam (eBeam) processing is a nonthermal pasteurization food processing technology. The underlying hypothesis was that eBeam processing will not negatively influence the composition, nutrient content, and aroma profile of raw milk. Raw milk samples were exposed to eBeam doses of 1 and 2 kGy, since our studies had shown that 2 kGy is suitable for raw milk pasteurization. The untreated and eBeam-treated raw milk samples were analyzed to detect changes in lactose, vitamin B2 , vitamin B12 , and calcium concentrations...
June 14, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28605125/isoflavones-and-their-metabolites-influence-the-milk-component-synthesis-ability-of-mammary-epithelial-cells-through-prolactin-stat5-signaling
#14
Yusaku Tsugami, Kota Matsunaga, Takahiro Suzuki, Takanori Nishimura, Ken Kobayashi
SCOPE: Isoflavones are a class of polyphonic compounds present in legumes and are called phytoestrogens because of their estrogen-like activity. Estrogen influences the behavior of mammary epithelial cells (MECs) during pregnancy and lactation. In this study, we investigated the direct influences of isoflavones and their metabolites in milk production ability of MECs. METHODS AND RESULTS: Mouse MECs were cultured with prolactin and dexamethasone (glucocorticoid analog) to induce milk production ability...
June 12, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28603087/cysteine-rich-whey-protein-isolate-immunocal%C3%A2-ameliorates-deficits-in-the-gfap-hmox1-mouse-model-of-schizophrenia
#15
Wei Song, Ayda Tavitian, Marisa Cressatti, Carmela Galindez, Adrienne Liberman, Hyman M Schipper
Schizophrenia is a neuropsychiatric disorder that features neural oxidative stress and glutathione (GSH) deficits. Oxidative stress is augmented in brain tissue of GFAP.HMOX1 transgenic mice which exhibit schizophrenia-relevant characteristics. The whey protein isolate, Immunocal® serves as a GSH precursor upon oral administration. In this study, we treated GFAP.HMOX1 transgenic mice daily with either Immunocal (33mg/ml drinking water) or equivalent concentrations of casein (control) between the ages of 5 and 6...
June 8, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28601463/evaluation-of-the-capillary-electrophoresis-method-for-measurement-of-immunoglobulin-concentration-in-ewe-colostrum
#16
V Lopreiato, C Ceniti, F Trimboli, E Fratto, M Marotta, D Britti, V M Morittu
Capillary electrophoresis (CE) is a technique routinely used in clinical laboratories that allows the separation and quantification of blood serum proteins in a rapid, precise, accurate, and inexpensive manner. Recently, CE has been proposed to separate and measure colostral proteins, but an evaluation of the agreement between CE and radial immunodiffusion (RID) method, currently used to quantify IgG in colostrum, is still lacking. The purpose of this study was to test the ability of a CE instrument, normally used in blood serum protein analysis, to realize the correct quantification of total Ig concentration in ewe colostrum, using RID assay as reference...
June 7, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28599261/secretory-immunoglobulin-purification-from-whey-by-chromatographic-techniques
#17
Alexander Matlschweiger, Hannah Engelmaier, Gottfried Himmler, Rainer Hahn
Secretory immunoglobulins (SIg) are a major fraction of the mucosal immune system and represent potential drug candidates. So far, platform technologies for their purification do not exist. SIg from animal whey was used as a model to develop a simple, efficient and potentially generic chromatographic purification process. Several chromatographic stationary phases were tested. A combination of two anion-exchange steps resulted in the highest purity. The key step was the use of a small-porous anion exchanger operated in flow-through mode...
May 26, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28598497/descriptive-and-temporal-saltiness-perception-properties-of-model-solid-lipoproteic-colloid-foods-implications-for-sodium-reduction
#18
Wan-Yuan Kuo, Youngsoo Lee
Solid lipoproteic colloid (SLC) foods that consist of an oil-in-water emulsion of lipid and protein such as cheese and sausage contribute a significant amount of sodium to modern diets. This study aimed to correlate the overall saltiness perception to the texture and temporal saltiness perception of SLCs to understand saltiness perception during oral processing. Model SLCs with varying levels of protein and fat were prepared via pressure homogenization of whey protein isolate, anhydrous milk fat, and NaCl, followed by heat-induced gelation...
June 9, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28597347/contribution-of-molecular-allergen-analysis-in-diagnosis-of-milk-allergy
#19
REVIEW
Zbigniew Bartuzi, Renata Rodrigues Cocco, Antonella Muraro, Anna Nowak-Węgrzyn
PURPOSE OF REVIEW: We sought to describe the available evidence supporting the utilization of the molecular allergen analysis (MAA) for diagnosis and management of cow milk protein allergy (CMPA). RECENT FINDINGS: Cow milk proteins are among the most common food allergens in IgE- and non-IgE-mediated food allergic disorders in children. Most individuals with CMPA are sensitized to both caseins and whey proteins. Caseins are more resistant to high temperatures compared to whey proteins...
July 2017: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/28595482/development-of-edible-films-obtained-from-submicron-emulsions-based-on-whey-protein-concentrate-oil-beeswax-and-brea-gum
#20
Juan Pablo Cecchini, María J Spotti, Andrea M Piagentini, Viviana G Milt, Carlos R Carrara
Edible films with whey protein concentrate (WPC) with a lipid component, sunflower oil (O) or beeswax (W), to enhance barrier to water vapor were obtained. Brea gum was used as emulsifier and also as matrix component. In order to achieve emulsion with small and homogeneous droplet size, an ultrasonicator equipment was used after obtaining a pre-emulsion using a blender. The films were made by casting. Effects of lipid fraction on droplet size, zeta potential, mechanical properties, water vapor permeability (WVP), solubility, and optical properties were determined...
June 2017: Food Science and Technology International, Ciencia y Tecnología de Los Alimentos Internacional
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