The processes of filtration and expression of suspensions of biological solids are reviewed in the context of vertebrate digestion. We show that the digesta of the brushtail possum and sheep form a contiguous matrix of particles from which a fluid phase can be expressed by the application of pressure. These findings are examined in respect of their possible contribution to phase separation and the sorting of particles within the gastrointestinal tracts of vertebrates. The morphological adaptations and motility of various digestive compartments are related to the processing of digesta with high solid phase content, in particular the formation and dispersion of the particle matrices. A brief description is given of techniques for evaluating the properties of digesta with high solid phase content.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.cbpa.2009.02.039 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Effects of rumen-degradable starch on lactation performance, gastrointestinal fermentation, and plasma metabolomic in dairy cows.
Int J Biol Macromol
January 2025
State Key Laboratory of Animal Nutrition, Beijing Engineering Technology Research Centre of Raw Milk Quality and Safety Control, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; College of Animal Science and Technology, Ningxia University, Yinchuan 750021, China. Electronic address:
This study investigated the effects of rumen-degradable starch (RDS) on lactation performance, gastrointestinal fermentation, and plasma metabolomics in dairy cows. Six mid-lactation cows, fitted with rumen, duodenum, and ileum cannulas, were used in a duplicated 3 × 3 Latin square design with 28-day periods. The cows were fed a low RDS (LRDS; 62.
View Article and Find Full Text PDFA conceptual mechanistic model of amino acid fluxes in the small intestine, taking the example of pig.
Animal
December 2024
PEGASE, INRAE, Institut Agro, 35590 Saint Gilles, France. Electronic address:
During digestion, almost 50% of absorbed essential amino acids (AAs) are metabolised by intestinal tissue, thus not appearing directly in the portal vein. This value, which is referred to as first-pass metabolism, seems high in relation to the overall efficiency of AA use considered in growth models. Experimental studies of first-pass metabolism are complicated due to the presence of numerous metabolic fluxes in the intestine and to the dynamics of digestion and absorption.
View Article and Find Full Text PDFPhysicochemical characterization and digestibility of resistant starch from corn starch sugar residue.
Food Chem X
January 2025
Fisheries College of Jimei University, State Key Laboratory of Mariculture Breeding, Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, Xiamen, Fujian 361021, China.
This study sought to investigate the thermal stability and digestibility of corn starch sugar residue resistant starch (CSSR-RS) through comparative analysis of the physicochemical properties and structural characteristics among CSSR-RS, high-amylose corn starch (HS), and normal corn starch (NS). CSSR-RS contained 51.76 % resistant starch (RS), with 42.
View Article and Find Full Text PDFDietary inclusion of high Amylose cornstarch increased Lactobacillus and Terrisporobacter and decreased Streptococcus in the cecal digesta of weanling pigs.
J Anim Sci
January 2025
Department of Animal Science, South Dakota State University, Brookings, USA.
The study investigated the effect of dietary inclusion of high amylose cornstarch (HA-starch) on cecal microbiota composition and volatile fatty acid (VFA) concentrations in weanling pigs fed high levels of cold-pressed canola cake (CPCC). Weaned pigs (240 mixed sex; 7.1 ± 1.
View Article and Find Full Text PDFSex-Based Differences in the In Vitro Digestibility of MCT Emulsions Stabilized by Various Emulsifiers.
Foods
January 2025
Laboratory of Chemistry of Foods and Bioactives, Department of Biotechnology and Food Engineering, Technion-Israel Institute of Technology, Haifa 320001, Israel.
Consumer sex influences phenotypic differences in digestive functions that may underlie variations in food disintegration. This study used an in vitro digestion model to test the hypothesis that emulsions follow distinct digestive pathways in men and women. Model emulsions were prepared using medium-chain triglycerides stabilized by beta-lactoglobulin, alpha-lactalbumin, or lactoferrin, and by three non-protein emulsifiers: Tween 80, lecithin, and sucrose esters.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!