RUMEN MICROBIAL DIGESTION OF FIBER AS A STOCHASTIC PROCESS

1984 ◽  
Vol 64 (5) ◽  
pp. 114-115 ◽  
Author(s):  
MEHDI MAHLOOJI ◽  
W. C. ELLIS ◽  
J. H. MATIS ◽  
K. R. POND
Keyword(s):  
Stochastic Process ◽  
Stochastic Model ◽  
Key Words ◽  
In Vitro Digestion ◽  
Exponential Models ◽  
Fiber Digestion ◽  
Varied Size

A stochastic model provided a better fit than did two deterministic, exponential models of in vitro digestion of fiber of varied size particles produced by ingestive mastication. Variations in rates of digestion within and among such varied size particles suggest rumen fiber digestion is a highly stochastic process. Key words: Rumen, microbial, fiber, models, stochastic

IN VITRO DIGESTION OF WHEAT STRAW BY DIFFERENT RUMEN ANAEROBIC FUNGI

1984 ◽  
Vol 64 (5) ◽  
pp. 156-157 ◽  
Author(s):  
G. L. R. GORDON ◽  
J. R. ASHES
Keyword(s):  
Organic Matter ◽  
Key Words ◽  
Wheat Straw ◽  
In Vitro Digestion ◽  
Neutral Detergent Fiber ◽  
Anaerobic Fungi ◽  
Acid Detergent Fiber ◽  
Fiber Digestion

Two types of anaerobic fungi were isolated from the rumen of a sheep fed wheat straw. The fungus producing a mycelium in culture digested significantly more organic matter, neutral detergent fiber, acid detergent fiber and cellulose from straw than the type producing a sporangium from "spherical bodies." Key words: Rumen, fungi, straw, fiber digestion

EFFECT OF DIFFERENT DIETARY NITROGEN SUPPLEMENTS ON RUMEN FERMENTATION

1984 ◽  
Vol 64 (5) ◽  
pp. 56-57 ◽  
Author(s):  
R. J. MERRY ◽  
R. H. SMITH ◽  
A. B. McALLAN
Keyword(s):  
Key Words ◽  
In Vitro Model ◽  
Rumen Fermentation ◽  
Microbial Protein ◽  
Deficient Diet ◽  
Fiber Digestion ◽  
Dietary Nitrogen ◽  
Vitro Model

Supplementing a nitrogen-deficient diet containing treated straw with urea improved fiber digestion and microbial protein synthetic efficiency, but only fiber digestion was further improved by replacing urea with fishmeal. Experiments with a stable in vitro model of rumen fermentation, fed continuously with solid feed, confirmed some of these findings. Key words: Rumen fermentation, cattle, in vitro, in vivo

scholarly journals INFLUENCE OF FORAGE PHENOLICS ON CELLULOLYTIC BACTERIA AND IN VITRO CELLULOSE DEGRADATION

1984 ◽  
Vol 64 (5) ◽  
pp. 39-40 ◽  
Author(s):  
V. H. VAREL ◽  
H. G. JUNG
Keyword(s):  
Key Words ◽  
Cinnamic Acid ◽  
Dry Matter ◽  
Cellulose Degradation ◽  
In Vitro Digestion ◽  
Cellulolytic Bacteria ◽  
Anaerobic Conditions

The forage phenolics, cinnamic acid and vanillin depressed in vitro dry matter disappearance of cellulose 14 and 49%, respectively. Compared to controls, the number of Bacteroides succinogenes was threefold greater for fermentations which contained vanillin. These results are contrary to those expected and vanillin-induced oxidation of anaerobic conditions may be involved. Key words: Forage phenolics, in vitro digestion, cellulolytic bacteria

scholarly journals RUMEN MICROBIAL ADAPTATION TO FIBER DIGESTION IN SVALBARD REINDEER

1984 ◽  
Vol 64 (5) ◽  
pp. 261-262 ◽  
Author(s):  
SVEIN DISCH MATHIESEN ◽  
ARNOLDUS SCHYTTE BLIX ◽  
COLIN G. ORPIN
Keyword(s):  
Fatty Acids ◽  
Key Words ◽  
Volatile Fatty Acids ◽  
High Arctic ◽  
Rumen Microorganisms ◽  
Fiber Digestion ◽  
Microbial Adaptation ◽  
Svalbard Reindeer

The dominant rumen microorganisms of the high-arctic reindeer from Svalbard (77–81°N) were characterized in summer and winter. Their in vitro fiber digesting ability and VFA production have been examined. It was determined that 74% of the bacteria isolated from animals shot in winter could digest fiber, and 30% in summer. Key words: Arctic, protozoa, bacteria, volatile fatty acids

scholarly journals Differential impact of Holder and High Temperature Short Time pasteurization on the dynamic in vitro digestion of human milk in a preterm newborn model

2020 ◽  
Vol 328 ◽  
pp. 127126 ◽  
Author(s):  
Stefano Nebbia ◽  
Marzia Giribaldi ◽  
Laura Cavallarin ◽  
Enrico Bertino ◽  
Alessandra Coscia ◽  
...  
Keyword(s):  
High Temperature ◽  
Human Milk ◽  
In Vitro Digestion ◽  
Preterm Newborn ◽  
Differential Impact ◽  
High Temperature Short Time ◽  
Short Time

Interaction between barley β-glucan and corn starch and its effects on the in vitro digestion of starch

2019 ◽  
Vol 141 ◽  
pp. 240-246 ◽  
Author(s):  
Hui Zhang ◽  
Zhi Li ◽  
Yanjun Tian ◽  
Zibo Song ◽  
Lianzhong Ai
Keyword(s):  
Corn Starch ◽  
In Vitro Digestion

scholarly journals Bovine Milk-Derived Emulsifiers Increase Triglyceride Absorption in Newborn Formula-Fed Pigs

Nutrients ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 410 ◽  
Author(s):  
Kristine Bach Korsholm Knudsen ◽  
Christine Heerup ◽  
Tine Røngaard Stange Jensen ◽  
Xiaolu Geng ◽  
Nikolaj Drachmann ◽  
...  
Keyword(s):  
Milk Fat ◽  
Bovine Milk ◽  
In Vitro Digestion ◽  
Lipid Absorption ◽  
Lipid Digestion ◽  
Soy Lecithin ◽  
Neonatal Piglets ◽  
Milk Fat Globule Membranes

Efficient lipid digestion in formula-fed infants is required to ensure the availability of fatty acids for normal organ development. Previous studies suggest that the efficiency of lipid digestion may depend on whether lipids are emulsified with soy lecithin or fractions derived from bovine milk. This study, therefore, aimed to determine whether emulsification with bovine milk-derived emulsifiers or soy lecithin (SL) influenced lipid digestion in vitro and in vivo. Lipid digestibility was determined in vitro in oil-in-water emulsions using four different milk-derived emulsifiers or SL, and the ultrastructural appearance of the emulsions was assessed using electron microscopy. Subsequently, selected emulsions were added to a base diet and fed to preterm neonatal piglets. Initially, preterm pigs equipped with an ileostomy were fed experimental formulas for seven days and stoma output was collected quantitatively. Next, lipid absorption kinetics was studied in preterm pigs given pure emulsions. Finally, complete formulas with different emulsions were fed for four days, and the post-bolus plasma triglyceride level was determined. Milk-derived emulsifiers (containing protein and phospholipids from milk fat globule membranes and extracellular vesicles) showed increased effects on fat digestion compared to SL in an in vitro digestion model. Further, milk-derived emulsifiers significantly increased the digestion of triglyceride in the preterm piglet model compared with SL. Ultra-structural images indicated a more regular and smooth surface of fat droplets emulsified with milk-derived emulsifiers relative to SL. We conclude that, relative to SL, milk-derived emulsifiers lead to a different surface ultrastructure on the lipid droplets, and increase lipid digestion.

In vitro digestion of polysaccharides: InfoGest protocol and use of small intestinal extract from rat

2021 ◽  
Vol 140 ◽  
pp. 110054
Author(s):  
Pablo Gallego-Lobillo ◽  
Alvaro Ferreira-Lazarte ◽  
Oswaldo Hernández-Hernández ◽  
Mar Villamiel
Keyword(s):  
In Vitro Digestion ◽  
Small Intestinal

Black, green, and pink pepper affect differently lipid oxidation during cooking and in vitro digestion of meat

2021 ◽  
Vol 350 ◽  
pp. 129246
Author(s):  
Serena Martini ◽  
Alice Cattivelli ◽  
Angela Conte ◽  
Davide Tagliazucchi
Keyword(s):  
Lipid Oxidation ◽  
In Vitro Digestion
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