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Carbohydrate digestion

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https://www.readbyqxmd.com/read/28341042/effect-of-forage-to-concentrate-ratio-with-sorghum-silage-as-a-source-of-forage-on-rumen-fermentation-n-balance-and-purine-derivative-excretion-in-limit-fed-dairy-heifers
#1
K Kljak, F Pino, A J Heinrichs
Sorghum silage has been shown to be a good alternative to corn silage for dairy cows; however, studies regarding heifers are insufficiently explored. Therefore, the objective of this study was to evaluate effects of changing forage to concentrate ratio (FOR:CON) in diets based on sorghum silage on N digestibility, rumen fermentation, N balance, C excretion, and microbial N yield in limit-fed dairy heifers. A split-plot 4×4 Latin square design with 19-d periods (15 d of adaptation and 4 d of sampling) was conducted with 8 rumen cannulated dairy heifers (age 13...
January 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28339792/interference-of-age-and-supplementation-of-direct-fed-microbial-and-essential-oil-in-the-activity-of-digestive-enzymes-and-expression-of-genes-related-to-transport-and-digestion-of-carbohydrates-and-proteins-in-the-small-intestine-of-broilers
#2
M F Fernandez-Alarcon, N Trottier, J P Steibel, R Lunedo, D M B Campos, A M Santana, J M Pizauro, R L Furlan, L R Furlan
The objectives of this study were to describe alterations that age and dietary inclusion of direct-fed microbial (DFM) Bacillus subtilis (BS) and a specific essential oil (EO) blend (carvacrol, cinnamaldehyde, cineol, and pepper extract) causes in the activity of digestive enzymes (maltase: MALT; aminopeptidase-N: APN; intestinal alkaline phosphate: IAP) and expression patterns of genes related to transport (oligopeptide transporter gene: SLC15A1; Na+-dependent glucose and galactose transporter gene: SLC5A1; Na+-independent glucose, galactose, and fructose transporter gene: SLC2A2; ATPase, Na+/K+ transporting gene: ATP1A1) and digestion (aminopeptidase-N gene: ANPEP; maltase-glucoamylase gene: MGAM; Sucrase-isomaltase gene: SI) of carbohydrates and proteins in the small intestine of broilers...
February 23, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339732/exploring-the-in-vivo-digestion-of-plant-proteins-in-broiler-chickens
#3
E Recoules, H Sabboh-Jourdan, A Narcy, M Lessire, G Harichaux, V Labas, M J Duclos, S Réhault-Godbert
The use of various protein sources (industry by-products, proteaginous) in poultry diets requires a greater understanding of protein digestion mechanisms. The aim of this study was to characterize the molecular actors required for protein digestion in broilers fed 4 different diets containing soybean meal, rapeseed meal, pea, or corn distiller's dried grain with solubles as the only protein source. The digesta of the digestive tract segments were collected and soluble proteins were analyzed by SDS-PAGE. SDS-PAGE analyses revealed 5 ubiquitous bands in digesta of all digestive tract segments regardless of the diet, whereas 3 bands were diet-specific...
February 23, 2017: Poultry Science
https://www.readbyqxmd.com/read/28336764/anti-hyperglycemic-activity-of-moringa-oleifera-is-partly-mediated-by-carbohydrase-inhibition-and-glucose-fiber-binding
#4
Sohel Bin Azad, Prawej Ansari, Shermin Akter, Saad Mosharraf Hossain, Shofiul Azam, Fahima Faroque Archi, Mahmudul Hasan, Jma Hannan
Background:Moringa oleifera has potential anti-hyperglycemic effects that is reported earlier by different scientific group using animal diabetic models. We aimed to explore the possible mechanism of action of M. oleifera extract through different method. Methods : Primarily we measured Fasting Blood Glucose and performed Glucose Tolerance Test, in type 2 diabetic rats. Further we studied the effect of extracts on pancreatic insulin concentration. Extracts effect on carbohydrate break down was assayed using α-amylase inhibition assays and assay of GI tracts six different segments...
March 23, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28319766/sequential-ultrasound-and-low-temperature-thermal-pretreatment-process-optimization-and-influence-on-sewage-sludge-solubilization-enzyme-activity-and-anaerobic-digestion
#5
Patricio Neumann, Zenón González, Gladys Vidal
The influence of sequential ultrasound and low-temperature (55°C) thermal pretreatment on sewage sludge solubilization, enzyme activity and anaerobic digestion was assessed. The pretreatment led to significant increases of 427-1030% and 230-674% in the soluble concentrations of carbohydrates and proteins, respectively, and 1.6-4.3 times higher enzymatic activities in the soluble phase of the sludge. Optimal conditions for chemical oxygen demand solubilization were determined at 59.3kg/L total solids (TS) concentration, 30,500kJ/kg TS specific energy and 13h thermal treatment time using response surface methodology...
March 9, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28318230/label-free-discovery-array-platform-for-the-characterization-of-glycan-binding-proteins-and-glycoproteins
#6
Christopher John Gray, Antonio Sánchez-Ruiz, Ivana Šardzíková, Yassir A Ahmed, Rebecca Louise Miller, Juana E Reyes Martinez, Edward Pallister, Kun Huang, Peter Both, Mirja Hartmann, Hannah N Roberts, Robert Šardzik, Santanu Mandal, Jeremy E Turnbull, Claire E Eyers, Sabine L Flitsch
The identification of carbohydrate-protein interactions is central to our understanding of the roles of cell-surface carbohydrates (the glycocalyx), fundamental for cell-recognition events. Therefore there is a need for fast high-throughput biochemical tools to capture the complexity of these biological interactions. Here we describe a rapid method for qualitative label-free detection of carbohydrate-protein interactions on arrays of simple synthetic glycans, more com-plex natural glycosaminoglycans (GAG) and lectins/carbohydrate binding proteins using MALDI-ToF mass spectrometry...
March 20, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28315860/determinants-and-duration-of-impact-of-early-gut-bacterial-colonization
#7
Christine Ann Edwards
BACKGROUND: An increasing number of studies show low diversity of the gut microbiome in those with chronic diseases such as obesity, inflammatory bowel disease, and allergy. Manipulation of the microbiota may promote health. However, the adult microbiota is stable and may be difficult to change. Understanding the fixed and modifiable factors, which determine colonization in early life, may provide strategies for acquisition of a health-promoting microbiome. SUMMARY: Not enough is known about the long-term effects of established determinants of gut colonization, including delivery mode, perinatal antibiotics, and infant diet...
March 18, 2017: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/28303037/bioactive-constituents-in-pulses-and-their-health-benefits
#8
REVIEW
Balwinder Singh, Jatinder Pal Singh, Khetan Shevkani, Narpinder Singh, Amritpal Kaur
Pulses are good sources of bioactive compounds such as polyphenols, phytosterols and non-digestible carbohydrates that play important physiological as well as metabolic roles. These compounds vary in concentration amongst different pulse species and varieties. Pulse seed coats are rich in water-insoluble fibres and polyphenols (having high antioxidant activities), while cotyledons contain higher soluble fibres, oligosaccharides, slowly digestible and resistant starch content. Ferulic acid is the most abundant phenolic acid present in pulses, while flavonol glycosides, anthocyanins and tannins are responsible for the seed coat colour...
March 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28298634/weaning-age-influences-the-severity-of-gastrointestinal-microbiome-shifts-in-dairy-calves
#9
S J Meale, S C Li, P Azevedo, H Derakhshani, T J DeVries, J C Plaizier, M A Steele, E Khafipour
Ruminants microbial consortium is responsible for ruminal fermentation, a process which converts fibrous feeds unsuitable for human consumption into desirable dairy and meat products, begins to establish soon after birth. However, it undergoes a significant transition when digestion shifts from the lower intestine to ruminal fermentation. We hypothesised that delaying the transition from a high milk diet to an exclusively solid food diet (weaning) would lessen the severity of changes in the gastrointestinal microbiome during this transition...
March 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28286650/review-sugar-beets-as-a-substitute-for-grain-for-lactating-dairy-cattle
#10
REVIEW
Essi Evans, Ulrike Messerschmidt
Dairy cows are customarily given grains and highly digestible byproduct ingredients as additions to forage to support milk production. In many parts of the world growing seasons are short, and the grain crops that can be grown may not provide adequate yields. Sugar beets, on the other hand are relatively hardy, and dry matter yields surpass the yields of most grain crops. There are however, perceptions that beets may not be suitable as a feed ingredient due to the fact that the storage form of carbohydrate is sugar rather than starch...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28285219/mild-alkaline-presoaking-and-organosolv-pretreatment-of-corn-stover-and-their-impacts-on-corn-stover-composition-structure-and-digestibility
#11
Qing Qing, Linlin Zhou, Qi Guo, Xiaohang Gao, Yan Zhang, Yucai He, Yue Zhang
An efficient strategy was developed in current work for biochemical conversion of carbohydrates of corn stover into monosaccharides. Corn stover was first presoaked in mild alkaline solution (1% Na2S) under 40°C for 4h, after which about 35.3% of the lignin was successfully removed while the specific surface area was notably enlarged. Then the presoaked solids were subjected to organosolv pretreatment that employed 20% methanol with an addition of 0.2% HCl as catalyst at 160°C for 20min, and the maximum total sugar yield of the pretreated corn stover achieved was 98...
February 27, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28280963/development-of-an-in-vitro-bioassay-for-recombinant-human-erythropoietin-rhuepo-based-on-proliferative-stimulation-of-an-erythroid-cell-line-and-analysis-of-sialic-acid-dependent-microheterogeneity-ut-7-cell-bioassay
#12
Manoj Kumar Metta, Vasavi Malkhed, Srinivasan Tantravahi, Uma Vuruputuri, Rajkumar Kunaparaju
Determination of biological activity and its comparison with clinical behavior is important in the quality assessment of therapeutic glycoproteins. In vivo studies are usually employed for evaluating bioactivity of these glycomolecules. However, alternative methods are required to simplify the bioassay and avoid ethical issues associated with in vivo studies. Negatively charged sialic acid residues are known to be critical for in vivo bioactivity of rHuEPO. To address this need, we employed the human acute myeloid leukemia cell line UT-7 for the determination of proliferative stimulation induced by rHuEPO...
March 9, 2017: Protein Journal
https://www.readbyqxmd.com/read/28280848/organosolv-processes
#13
Nicolas Brosse, Mohd Hazwan Hussin, Afidah Abdul Rahim
Biofuels and chemicals can be produced from lignocellulosic feedstocks using biotechnological processes. The effective utilization of carbohydrates from biomass for the production of biofuels necessitates the development of pretreatment technologies to enhance their enzymatic digestibility. Among all the various pretreatment methods currently studied and developed, the organosolv processes, in which organic solvents or aqueous organic solvent mixtures are used as the pretreatment medium, appear to be specially promising in the context of the biorefinery because (1) they produce cellulosic pulp with a good enzymatic digestibility for monomeric glucose production and (2) they allow a clean fractionation of the major biomass components (cellulose, lignin, and hemicelluloses) into three process streams...
March 10, 2017: Advances in Biochemical Engineering/biotechnology
https://www.readbyqxmd.com/read/28274187/bioaugmentation-of-the-anaerobic-digestion-of-food-waste-by-dungs-of-herbivore-carnivore-and-omnivore-zoo-animals
#14
Javkhlan Ariunbaatar, Onur Ozcan, Robert Bair, Giovanni Esposito, Ray Ball, Piet N L Lens, Daniel H Yeh
The potential improvement of biomethanation of food waste (FW) by adding dung of herbivore (giraffe, llama, koala), carnivore (tiger) and omnivore (sloth bear) animals to anaerobic sludge (AnS) was investigated. Adding 30% giraffe, sloth bear or koala dung to the AnS inoculum yielded, respectively, a 11.17 (± 4.51), 10.10 (± 1.23), and 1.41 (± 0.56) % higher biomethane production, as compared to the control (FW with solely AnS). The highest biomethane production of 564.00 (± 3.88) ml CH4/gVSadded obtained with 30% giraffe dung and 70% AnS was attributed to a higher solubilization of proteins (6...
March 9, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28273868/pharmacological-potential-and-synthetic-approaches-of-imidazo-4-5-b-pyridine-and-imidazo-4-5-c-pyridine-derivatives
#15
REVIEW
Malwina Krause, Henryk Foks, Katarzyna Gobis
The structural resemblance between the fused imidazopyridine heterocyclic ring system and purines has prompted biological investigations to assess their potential therapeutic significance. They are known to play a crucial role in numerous disease conditions. The discovery of their first bioactivity as GABAA receptor positive allosteric modulators divulged their medicinal potential. Proton pump inhibitors, aromatase inhibitors, and NSAIDs were also found in this chemical group. Imidazopyridines have the ability to influence many cellular pathways necessary for the proper functioning of cancerous cells, pathogens, components of the immune system, enzymes involved in carbohydrate metabolism, etc...
March 4, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28261164/impact-of-westernized-diet-on-gut-microbiota-in-children-on-leyte-island
#16
Jiro Nakayama, Azusa Yamamoto, Ladie A Palermo-Conde, Kanako Higashi, Kenji Sonomoto, Julie Tan, Yuan-Kun Lee
Urbanization has changed life styles of the children in some towns and cities on Leyte island in the Philippines. To evaluate the impact of modernization in dietary habits on gut microbiota, we compared fecal microbiota of 7 to 9-year-old children from rural Baybay city (n = 24) and urban Ormoc city (n = 19), and assessed the correlation between bacterial composition and diet. A dietary survey indicated that Ormoc children consumed fast food frequently and more meat and confectionary than Baybay children, suggesting modernization/westernization of dietary habits...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28259403/evaluation-of-the-national-research-council-2001-dairy-model-and-derivation-of-new-prediction-equations-1-digestibility-of-fiber-fat-protein-and-nonfiber-carbohydrate
#17
R R White, Y Roman-Garcia, J L Firkins, M J VandeHaar, L E Armentano, W P Weiss, T McGill, R Garnett, M D Hanigan
Evaluation of ration balancing systems such as the National Research Council (NRC) Nutrient Requirements series is important for improving predictions of animal nutrient requirements and advancing feeding strategies. This work used a literature data set (n = 550) to evaluate predictions of total-tract digested neutral detergent fiber (NDF), fatty acid (FA), crude protein (CP), and nonfiber carbohydrate (NFC) estimated by the NRC (2001) dairy model. Mean biases suggested that the NRC (2001) lactating cow model overestimated true FA and CP digestibility by 26 and 7%, respectively, and under-predicted NDF digestibility by 16%...
March 2, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28259068/enhancement-of-microbial-density-and-methane-production-in-advanced-anaerobic-digestion-of-secondary-sewage-sludge-by-continuous-removal-of-ammonia
#18
Bing Tao, Joanne Donnelly, Ivo Oliveira, Ruth Anthony, Victoria Wilson, Sandra R Esteves
Ammonia inhibition mitigation in anaerobic digestion of high solids content of thermally hydrolysed secondary sewage sludge by the NH4(+) affinitive clinoptilolite and a strong acid type ion-exchange resin S957 was investigated. Continuous NH4(+)-N removal was achieved through ion-exchanging at both temperatures with average removals of 50 and 70% for the clinoptilolite and resin dosed reactors, respectively. Approximate 0.2-0.5unit of pH reduction was also observed in the dosed reactors. The synergy of NH4(+)-N removal and pH reduction exponentially decreased free NH3 concentration, from 600 to 90mg/L at 43°C, which mitigated ammonia inhibition and improved methane yields by approximately 54%...
February 20, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28255654/replacement-of-glycaemic-carbohydrates-by-inulin-type-fructans-from-chicory-oligofructose-inulin-reduces-the-postprandial-blood-glucose-and-insulin-response-to-foods-report-of-two-double-blind-randomized-controlled-trials
#19
Helen Lightowler, Sangeetha Thondre, Anja Holz, Stephan Theis
PURPOSE: Inulin-type fructans are recognized as prebiotic dietary fibres and classified as non-digestible carbohydrates that do not contribute to glycaemia. The aim of the present studies was to investigate the glycaemic response (GR) and insulinaemic response (IR) to foods in which sucrose was partially replaced by inulin or oligofructose from chicory. METHODS: In a double-blind, randomized, controlled cross-over design, 40-42 healthy adults consumed a yogurt drink containing oligofructose or fruit jelly containing inulin and the respective full-sugar variants...
March 3, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28244673/history-of-the-low-fodmap-diet
#20
REVIEW
Peter R Gibson
It has long been known that many short-chain carbohydrates can induce abdominal symptoms that are similar to those in patients with irritable bowel syndrome (IBS). It was hypothesized that restricting the intake of all short-chain carbohydrates that are either slowly absorbed or not digested in the small intestine should be considered together because they all have similar effects on the intestine by distending the lumen. These groups of carbohydrates were called, Fermentable, Oligosaccharides, Disaccharides and Monosaccharides and Polyols (FODMAPs), because of the lack of a known collective term...
March 2017: Journal of Gastroenterology and Hepatology
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