Four male lambs (Katahdin; average live weight 25.9±2.9 kg) with "T" type cannulas in the rumen and proximal duodenum were used in a 4×4 Latin square experiment to evaluate the influence of supplemental dry distillers grain with solubles (DDGS) levels (0, 10, 20 and 30%, dry matter basis) in substitution for dry-rolled (DR) corn on characteristics of digestive function and digestible energy (DE...

Abstract The dry anaerobic digestion performances were investigated at the temperature of 35±1°Cwith addition propionic acid different concentrations in five lab-scale reactors (R1-R5) to investigate effect accumulation on methane production mesophilic digestion. And volatile fatty acids, biogas and microbial community detected. active generation would be inhibited when exceeded 30 gL 1 , which...

The knowledge of solid loss kinetics of foods during digestion is crucial for understanding the factors that constrain the release of nutrients from the food matrix and their fate of digestion. The objective of this study was to investigate the solid loss of carrots during simulated gastric digestion as affected by pH, temperature, viscosity of gastric fluids, mechanical force present in stomac...

This study evaluated the feasibility of obtaining methane in anaerobic digestion (AD) from the waste products generated by the processing of fruit and vegetables. During the first phase (0-55 d) of the AD using sludge from fruit and vegetable processing, an average value of 244±88 L kg(-1) dry matter d(-1)of biogas production was obtained, and methane content reached 65% of the biogas. Co-diges...

BACKGROUND In solid-state anaerobic digestion (AD) bioprocesses, hydrolytic and acidogenic microbial metabolisms have not yet been clarified. Since these stages are particularly important for the establishment of the biological reaction, better knowledge could optimize the process performances by process parameters adjustment. RESULTS This study demonstrated the effect of total solids (TS) co...

industrial activities lead to an increase in heavy metal burden in rivers. sediment and algae (spirogyra sp.) samples were collected from the shoor river to investigate their heavy metal concentrations. dry and ashed samples of algae and sediment were digested using concentrated nitric acid. heavy metals (as, fe, zn and cr) concentration measured using an icp-oes instrument (perkinelmer, usa). ...

The occurrence of both acid and alkaline ribonuclease activities in liver and kidney was reported in 1954 by Roth (1) and by de Lamirande et al. (2). Since then, investigators have used various methods to purify the intracellular ribonuclease activities (3-8). In our studies, comparatively mild procedures were used for the nuclease preparations (5)) with the hope that the nuclease activities as...

Total elemental analyses of biochars presents challenges during digestion because of biochars’ high chemical recalcitrance and widely varied composition. Three biochars were chosen with contrasting properties: corn stover pyrolyzed at 300 ◦C, oak wood at 600 ◦C, and poultry manure with sawdust at 600 ◦C. Recovery of phosphorus (P), potassium (K), sulfur (S), calcium (Ca), magnesium (Mg), and zi...

Digestion in the USA Business Analysis of Anaerobic Digestion in the USA Market conditions are looking increasingly favourable for the growth of the anaerobic digestion industry in the US. While this form of biogas production has historically been limited to agricultural and wastewater uses, it is growing in favour as a method of managing and extracting value from food wastes. The feasibility o...

Five trials were conducted to evaluate the energy value of corn wet milling by-products in finishing diets. In trials 1 (45 finishing lambs, 34 kg) and 2 (70 digestion wethers, 32 kg), Rambouillet X Suffolk lambs fed corn gained faster (P less than .10), more efficiently (P less than .10) and had higher (P less than .01) digestibilities of neutral and acid detergent fiber (NDF, ADF) and starch ...