Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 25 for “"In vitro fermentation"”.
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Glucooligosaccharides and Fructooligosaccharides Alter Microbial Populations and Fermentation Characteristics in Animal Models and Human Subjects
Certain nondigestible oligosaccharides have been shown to elicit prebiotic effects in the large intestine of healthy nonruminants. Experiments were conducted to evaluate the prebiotic effects of two novel oligosaccharides, alpha-glucooliogsaccharide (GOS) and maltodextrin-like oligosaccharide (MD), …
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EVALUATION OF A METHOD TO MEASURE VOLATILE FATTY ACIDS AND GASES IN VITRO WITH MATHEMATICAL MODELING
Methane emissions from ruminants have become an issue over the last 50 years. Previous research has shown that methane emissions are stoichiometrically linked with volatile fatty acid (VFA) profiles in ruminant animals. For example, a shift from acetate to propionate may decrease carbon dioxide …
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The Influence of Galactooligosaccharides on Nutrient Digestion, Ileal and Fecal Fermentation Characteristics, and Intestinal and Colonic Microflora in Growing Swine
… effects of galactooligosaccharides (Gal OS) in pigs. The first experiment measured in vitro fermentation of Gal OS in comparison to other oligosaccharide (OS) sources using swine fecal microflora. The second experiment evaluated increasing concentrations of soybean OS on apparent and trae …
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Improving fiber by-product utilization in high concentrate diets
The effects of starch and fiber combinations in feedlot diets were examined to determine maximum whole shell corn (WSC) inclusion rate in high fiber diets and determine the effects of fibrolytic enzyme addition to WSC diets with increasing fiber inclusion. Soybean hull (SH) diets with increasing …
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In vitro metabolism of uniformly labeled glucose-C14 by bovine rumen microorganisms
… for the quantitative separation of major fermentation products of uniformly labeled glucose-C¹⁴ produced by bovine rumen microorganisms in vitro. After 45 min, the fermentation mixture was fractionated into (a) one control subsample, and duplicate fractions of (b) solid matter …
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The Metabolic Fate of Glucoraphanin in F344 Rats
… fight cancer. However, sulforaphane is present in broccoli as its precursor, glucoraphanin (GP). Previous studies have reported that humans do not have the enzyme to hydrolyze GP to SF and are dependent on an endogenous plant enzyme, myrosinase. Most cooking methods inactivate myrosinase. Thus …
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Effect of microbial ecosystem from wild herbivores browsing tanniferous plants on goat rumen fibrolytic activity
Ruminant have developed advanced microbial ecosystem for digesting fibrous feedstuffs over the past years. The efficiency of harnessing energy from these forages is still a major problem as less than 60% of forages consumed are still passed out as faeces. Many factors have been associated with the …
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Alternative Feeding Resources in the Mediterranean areas to mitigate methane emissions from sheep
… doctoral study is to evaluate the potential of using two locally byproducts namely carob pulp (Ceratonia Siliqua) and dehydrated citrus pulp (DCP) in view of reducing the carbon footprint, alleviating methane gas emission and reducing dependence on cereal feeding in fattening lambs. Two …
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Fermentable Carbohydrate Substrates Generated from Cereal and Pseudocereal Insoluble Dietary Fibers and Their In Vitro Fecal Fermentation
Dietary fiber has gained an increasing attention in recent years due to the myriad of health benefits attributed to it. The majority of these arise from their fermentative properties and their effects on gut microbiota. Cereals and pseudocereals are important sources of insoluble dietary fibers …
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Effects of Miscanthus grass as a fiber source in pet diets on extrusion processing and diet utilization by dogs and cats
Gastrointestinal health, digesta passage, regularity and consistency of elimination, and energy dilution of the diet can be affected by dietary fiber. Cellulose and beet pulp have been common fibers used in pet foods. Pet owners and pet food companies are in search of alternatives. Miscanthus grass …
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Effect of proteolytic enzyme and fiber of papaya fruit on human digestive health
… healthy diet with daily recommendation of 5 servings or at least 400 g per day. Fruits and vegetables are good sources of vitamins, minerals, antioxidants, and fiber. Papaya fruit is known for his high nutrient and fiber content, and with few exceptions, it is generally consumed ripe due to its …
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Indices of gut health and intestinal microbial ecology of the cat as affected by ingestion of select carbohydrates varying in fermentative capacity
The focus of this research was to determine the impact of select fermentable carbohydrates on gastrointestinal health outcomes and microbial ecology of domestic cats. Four studies were designed to address two major research objectives: 1) to determine nutrient digestibility and fecal fermentative …
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The impact of dietary components on gut microbiome modulation and health
The human gut microbiome plays a critical role in maintaining overall health, influencing key physiological processes such as digestion, immune function, and behaviour. A deeper understanding of the complex interactions between the gut microbiome, diet, and disease is essential for advancing …
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Nutritional and immunological outcomes as affected by a novel carbohydrate complex composed of galactoglucomannan oligosaccharides and arabinoxylan
… a novel galactoglucomannan oligosaccharide-arabinoxylan (GGMO-AX) complex for properties that could positively impact nutritional and immunological outcomes. Five studies were designed to address three major research objectives: 1) determine the structural and chemical composition of the GGMO-AX …
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Use of Newly Developed Blended Feed Supplement on Rumen Parameters and Milk Fat in Dairy Cows
… a newly developed Blended Feed Supplement (BFS) in dairy nutrition. The primary objective was to characterize the feed's chemical composition, ruminal fermentation, nutrient digestibility, protein-energy synchronization, and its impact on milk production and nitrogen utilization, with the aim of …
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Harnessing N-glycans as Next Generation Prebiotics
N-linked glycans are structurally diverse carbohydrate moieties that are covalently boundto dietary glycoproteins. Upon ingestion, N-glycans from dietary glycoproteins escape absorption in the small intestine and travel to the colon for fermentation. Ample evidence has indicated that certain …
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Fibre fermentation in the pig intestine : effect on metabolite production and nitrogen excretion
Fine tuning a nutritional strategy by incorporating dietary fibre (DF) in pig diets can help to improve gut health. Fermentation of DF, especially the soluble fraction, in pig intestines yields short-chain fatty acids (SCFA) and lactic acid, which have been found to improve gut health by favouring …
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Complex glycan utilization preferences of human gut bacteria
<p>Complex glycans, making up dietary fiber, have gained significance in recent years as they are the main energy source for the colonic microbiota which are physiologically important for the host health. Understanding glycan utilization strategies of the members of this community is essential to …
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Nutritional evaluation of α-cyclodextrin using canine, hamster, and in vitro models
The main objective of this research was to characterize the nutritional effects of α-cyclodextrin (ACD) using in vitro, canine, and hamster models. Study 1 evaluated the composition of ACD, validated select fat analysis techniques as related to ACD-fat complexes, and evaluated the gastrointestinal …
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