Previously, we demonstrated that exercise can cause small intestinal injury, leading to loss of gut barrier function. The functional consequences of such exercise-induced intestinal injury on subsequent food digestion and absorption are unclear. The present study determined the impact of resistance-type exercise on small intestinal integrity and in vivo dietary protein digestion and absorption ...

We develop quantitative optimization criteria for transient digestion processes in simple animal tracts that can be modeled by a semi-batch reactor or plug flow reactor. Specifically, we determine the residence time that optimizes the average net energy intake over the total residence time. The net energy is measured by the total energy intake, less the cost of foraging and digestion. Precise v...

Starch performance along digestion is becoming of utmost importance owing to the extensive presence starch in foods and its association glycaemic index. However, scarce information exists on relationship between digestibility gels their microstructure. The aim study was identify rate degree from different botanical sources impact microstructure with vitro (IVSD) by fitting hydrolysis kinetics. ...

Grain fermentability largely determines the feed value of grains for ruminants. Our objective was to evaluate the variation in kinetics of gas production of cereal grains and the relationship among gas production, chemical composition and feed value. Eighteen barley, 99 corn, 23 sorghum, and 57 wheat samples were fermented in vitro for 48 h. Gas production was measured with a computerized syste...

Anaerobic digestion kinetics study of cow manure was performed at 35 degrees C in bench-scale gas-lift digesters (3.78 l working volume) at eight different volatile solids (VS) loading rates in the range of 1.11-5.87 g l-1 day-1. The digesters produced methane at the rates of 0.44-1.18 l l-1 day-1, and the methane content of the biogas was found to increase with longer hydraulic retention time ...

This study evaluated the co-digestion of domestic wastewater solids (WWS) and food waste (FW) at bench-scale for Yosemite National Park, California, which operates a 1900 m3/d treatment plant in El Portal, California. A 35-day biochemical methane potential test was performed on varying amounts FW as percentage total (WWS plus FW) volatile basis (%FW). Specific yield volumetric increased substan...