0968 Optimization of alkali hydrolysis conditions to increase antioxidant availability in corn distillers grain

2016 ◽  
Vol 94 (suppl_5) ◽  
pp. 465-465
Author(s):  
A. Daramola ◽  
B. Min
2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Daxiang Liu ◽  
Baohua Zhang ◽  
Yueshu Yang ◽  
Wennian Xu ◽  
Yu Ding ◽  
...  

Vegetation-concrete is one of the most widely used substrates in ecological slope protection engineering. The porosity of the vegetation-concrete must be high enough to satisfy the growth needs of the plant roots, while the mechanical properties must be strong enough to satisfy the self-stability requirement of the substrates on the slope. It is necessary to balance these two aspects in the design of vegetation-concrete. As one of the main components in vegetation-concrete, organic material has a remarkable effect on both the porosity and the mechanical properties of the substrate. In this paper, four types of common organic materials (rice husks, sawdust, and corn distillers’ and unhulled rice distillers’ grain) are chosen to research the effect of the organic material type and proportion on the porosity and mechanical properties of the substrate. The experimental results show that the porosity of samples containing corn distillers’ grain is clearly higher than those of the other samples types, while situation of the mechanical properties is the opposite. It can be concluded that organic material with a large grain size is not suitable for use in vegetation-concrete directly and needs to be crushed before use to prevent crack formation. The research results also show that the rates of increase in porosity decrease with more organic material added, while the rates of decrease in the unconfined compressive strength and the elasticity modulus increase. From a comprehensive consideration of the required mechanical properties and plant growth, organic material with a small grain size is most suitable for use in vegetation-concrete, and the suitable proportion is between 7% and 9%.


2021 ◽  
Vol 2 (10) ◽  
pp. 1035-1043
Author(s):  
Nabil H Elsayed ◽  
Ghada M. Taha ◽  
Ola A. Mohamed

A step towards minimizing the environmental pollution of leather tanning , leather chrome shavings wastes were treated with Li2CO3 to extract technical or industrial gelatin as an added value material. Isolation and characterization of gelatin obtained from chrome-tanned shavings were done. The alkali hydrolysis products obtained, showed good physical and chemical properties in terms of gel strength, swelling and thermal stability. The optimum hydrolysis conditions using Li2CO3 were found to be 5 hr. extraction at 80°C, swelling time of one day and pH 9.5. The yield was over one third of the original starting waste material.


2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 289-289
Author(s):  
Briana V Tangredi ◽  
Meghan P Thorndyke ◽  
Octavio Guimaraes ◽  
Rebecca K Barrington ◽  
Shaniece M Borgerding ◽  
...  

Abstract Eighty-nine American Wagyu steers were used to evaluate the effects of dietary barley supplementation on feedlot performance. We hypothesized that barley supplementation would increase ADG compared to non-supplemented control animals. The experimental design was a randomized complete block design. Steers were blocked by initial body weight (BW) and randomly assigned within block to one of two treatments. Treatments consisted of 1) Control (no supplemental barley) and 2) Control diet + 0.9 kg∙animal-1∙d-1 of supplemental barley. Steers were housed in feedlot pens (all pens contained n = 4 steers/pen with the exception of one Control pen that contained n=5 steers; 11 replicates/treatment; experimental unit = pen) and fed a traditional American Wagyu finishing diet (DM basis: 68.42% DM, 14.33% CP; TDN: 74.76%, NEg: 1.16 Mcal/kg, 5.25% EE) for 270d. The basal diet consisted of grass hay, corn silage, cracked corn grain, soybean meal, corn distillers grain, white salt, ground limestone, and olive byproduct. Diets were fed once daily in the morning and barely was top dressed to the appropriate pens, immediately after the basal diet was delivered. Steers were individually weighed on d -1 and 0, and approximately every 28 days throughout the 270d experiment. Data were analyzed using a mixed effects model (PROC MIXED, SAS) for a completely randomized block design. Initial pen BW was used as a covariate in the statistical analysis of all performance data and significance was determined at P ≤ 0.05. Initial and final BW, ADG, DMI, and feed:gain were similar across treatments. Therefore, under the conditions of this experiment, these data suggest that barley supplementation for 270d to American Wagyu cattle did not impact overall animal performance.


1992 ◽  
Vol 72 (2) ◽  
pp. 317-328 ◽  
Author(s):  
T. A. McAllister ◽  
L. M. Rode ◽  
K.-J. Cheng ◽  
J. G. Buchanan-Smith

Six Holstein steers fitted with ruminal and duodenal cannulae were fed three diets: formaldehyde-treated rolled barley (0.11% wt wt−1) with canola meal (FTB); untreated rolled barley supplemented with corn distillers' grain and fishmeal (EPB); and untreated rolled barley with canola meal (CON). Foam production from ruminal fluid did not differ among diets. Mean viscosity of ruminal fluid from steers fed FTB was lower (P < 0.02) than rumen fluid from steers fed CON. Ruminal fluid pH of steers fed FTB was lower 2 h after feeding than in steers fed the EPB or CON diets. FTB led to lower (P < 0.02) ruminal ammonia concentrations 1 and 2 h after feeding and lower (P < 0.1) plasma urea nitrogen concentrations 4 h after feeding compared to EPB or CON diets. FTB and EPB tended to lower the ruminal concentration of volatile fatty acids (VFA) associated with microbial amino acid metabolism. Intake, ruminal and postruminal digestion of DM, OM, starch and NDF were not influenced by diet. While EPB had no effect on total tract digestion, FTB increased (P < 0.1) total tract digestibility of starch and decreased (P < 0.1) the digestibility of NDF. EPB increased (P < 0.05) the supply of dietary protein and decreased the supply of microbial protein reaching the small intestine. FTB did not increase the amount of total nitrogen or starch reaching the small intestine of steers. Key words: Cattle, escape protein, starch, formaldehyde, barley


2015 ◽  
Vol 47 (1) ◽  
pp. 77-103 ◽  
Author(s):  
SUNIL P. DHOUBHADEL ◽  
AZZEDDINE M. AZZAM ◽  
MATTHEW C. STOCKTON

AbstractThis article examines the impact of the 2012 drought and the biofuels mandate on the U.S. grain and livestock markets and estimates the mandate waiver required to offset the impact on the corn price. The framework used is a stochastic equilibrium displacement model that integrates the beef, pork, and poultry markets with the corn, distillers’ grain, soybean, soymeal, and ethanol markets. The corn and beef markets are found to be the most vulnerable. A mandate waiver of approximately 23% is required to fully negate the impact of the drought on corn prices. The waiver is equivalent to a 13.7% reduction in ethanol consumption.


1992 ◽  
Vol 72 (2) ◽  
pp. 309-316 ◽  
Author(s):  
T. A. McAllister ◽  
K. A. Beauchemin ◽  
L. A. McClelland ◽  
K.-J. Cheng

One hundred and three lambs were fed three isonitrogenous diets: formaldehyde-treated barley (0.11% wt wt−1) with canola meal; untreated barley with corn distillers' grain and fishmeal (escape protein); and untreated barley with canola meal (control). Formaldehyde treatment did not affect ADG, whereas escape protein increased (P < 0.05) ADG of lambs by 5.3%. Carcass traits of lambs from all diets were similar, although kidney fat was reduced (P < 0.05) in lambs fed formaldehyde-treated barley. A digestibility trial with six lambs (32.6 ± 2.4 kg) showed that DM intake and digestion of DM, organic matter, nitrogen and starch were similar among diets. DE was 3.8% lower (P < 0.05) for the formaldehyde-treated diet than the mean of the other two diets. ME was 5.4% lower (P < 0.07) for the formaldehyde-treated barley than for the control diet. Digestion of NDF was 7.3% higher (P < 0.07) in the escape protein diet compared with the control diet. Treatment of barley with 0.11% (wt wt−1) formaldehyde lowered the DE of barley and did not increase the growth rate or improve the feed efficiency of feedlot lambs. Key words: Sheep, escape protein, fishmeal, formaldehyde, barley


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