Mechanical profiles and topographical properties of films made from alkaline extracted arabinoxylans from wheat bran, maize bran, or dried distillers grain

2019 ◽  
Vol 86 ◽  
pp. 78-86 ◽  
Author(s):  
Cassie Anderson ◽  
Senay Simsek
Foods ◽  
2019 ◽  
Vol 8 (6) ◽  
pp. 213 ◽  
Author(s):  
Cassie Anderson ◽  
Senay Simsek

Biodegradable materials made from cereal arabinoxylan could provide an alternative source of packaging to replace current nonbiodegradable plastics. The main purpose of this research was to determine how arabinoxylan (AX) films made from wheat bran (WB) AX, maize bran (MB) AX, and dried distillers grain (DDG) AX made with either glycerol or sorbitol at varying levels (10, 25 or 50%) interacts with soil and water. The biodegradability of all films ranged from 49.4% biodegradable (DDG AX with 10% sorbitol) to 67.7% biodegradable (MB AX with 50% glycerol). In addition, the MB AX films with 25% sorbitol had the lowest moisture content at 9.7%, the MB AX films with 10% glycerol had the highest water solubility at 95.6%, and the MB AX films with 50% glycerol had the highest water vapor transmission rate (WVTR) at 90.8 g h−1 m−2. Despite these extreme trends in the MB AX films, the WB AX films were the least hydrophilic on average while the DDG AX films were the most hydrophilic on average. The 18 materials developed in this research demonstrate varying affinities for water and biodegradation. These materials can be used for many different packaging materials, based on their unique characteristics.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Umar Shah ◽  
Deepak Dwivedi ◽  
Mark Hackett ◽  
Hani Al-Salami ◽  
Ranjeet P. Utikar ◽  
...  

AbstractKafirin, the hydrophobic prolamin storage protein in sorghum grain is enriched when the grain is used for bioethanol production to give dried distillers grain with solubles (DGGS) as a by-product. There is great interest in DDGS kafirin as a new source for biomaterials. There is however a lack of fundamental understanding of how the physicochemical properties of DDGS kafirin having been exposed to the high temperature conditions during ethanol production, compare to kafirin made directly from the grain. An understanding of these properties is required to catalyse the utilisation of DDGS kafirin for biomaterial applications. The aim of this study was to extract kafirin directly from sorghum grain and from DDGS derived from the same grain and, then perform a comparative investigation of the physicochemical properties of these kafirins in terms of: polypeptide profile by sodium-dodecyl sulphate polyacrylamide gel electrophoresis; secondary structure by Fourier transform infra-red spectroscopy and x-ray diffraction, self-assembly behaviour by small-angle x-ray scattering, surface morphology by scanning electron microscopy and surface chemical properties by energy dispersive x-ray spectroscopy. DDGS kafirin was found to have very similar polypeptide profile as grain kafirin but contained altered secondary structure with increased levels of β-sheets. The structure morphology showed surface fractals and surface elemental composition suggesting enhanced reactivity with possibility to endow interfacial wettability. These properties of DDGS kafirin may provide it with unique functionality and thus open up opportunities for it to be used as a novel food grade biomaterial.


2020 ◽  
Vol 98 (Supplement_2) ◽  
pp. 59-59
Author(s):  
Elizabeth Palmer ◽  
Marcelo Vedovatto ◽  
Juliana Ranches ◽  
Vinicius Gouvea ◽  
Rhaiza Oliveira ◽  
...  

Abstract This study evaluated the growth, immunity, and carcass characteristics of beef steers born to cows offered dried distillers grains (DDG) at different timing during late gestation. Approximately 84 d before calving (d 0), 84 mature Brangus cows were stratified by BW and BCS (422 ± 42 kg; 5.0 ± 0.14) and allocated into 1 of 6 bahiagrass pastures (14 cows/pasture). Treatments were randomly assigned to pastures: 1) no prepartum supplementation (CON); 2) 1 kg/d DDG from d 0 to 84 (LATE84); or 3) 2 kg/d from d 0 to 42 (LATE42). Calves were weaned at 261 ± 23 d of age. At weaning, 38 steers were vaccinated against bovine viral diarrhea virus (BVDV-1) and parainfluenza-3 (PI-3) and transported to a feedlot facility. Steers were penned according to cow prepartum pasture distribution and fed a similar diet until slaughter (d 587). Data were analyzed as complete randomized design using MIXED procedure of SAS, pasture as the experimental unit, treatment as fixed effect, and pasture(treatment) and steer(pasture) as random effects. Steer feedlot BW, ADG, DMI, and G:F did not differ (P ≥ 0.12) among treatments. Plasma haptoglobin concentrations were greater (P ≤ 0.03) for LATE42 and LATE84 vs. CON steers 2 d after feedlot entry. Plasma cortisol and seroconversion for BVDV-1 and PI-3 did not differ (P ≥ 0.15) among treatments. The percentage of carcasses grading Choice did not differ (P = 0.13), but carcasses grading low Choice were greater (P = 0.03) for CON vs. LATE42, with LATE84 being intermediate (91, 40, and 58%, respectively). Thus, prepartum dried distillers grain supplementation to B. indicus-influenced cows did not enhance feedlot growth but had subtle positive impacts on carcass quality and innate immunity in steer progeny. In addition, timing of dried distillers grain supplementation (last 84 d vs. first 42 d of late gestation) did not impact steer post-weaning feedlot performance and carcass quality.


2021 ◽  
Vol 99 (Supplement_1) ◽  
pp. 24-24
Author(s):  
Megan Myerscough ◽  
Wes Chapple ◽  
William T Meteer ◽  
Daniel W Shike

Abstract The objectives were to analyze the effects of housing cow-calf pairs in drylots or pasture on calf performance and behavior through weaning. Simmental × Angus (2 yr; 108/yr; 81 ± 15.3 d postpartum) spring-calving cows were stratified by age, BW, BCS, and calf sex and allotted to six groups/yr. Groups were randomly allotted to 1 of 2 treatments: drylot (DL) or pasture (PAST). Calves in the drylot had ad libitum access to a diet consisting of corn silage, dried distillers grain, corn stalks, dry rolled corn, and soybean hulls. Calves on PAST received creep feed three weeks prior to weaning. Calf BW was measured on d 0, 55, and 110. Calves were fence-line weaned on d 110. Behavior was observed for two days after weaning. Data were analyzed using the MIXED procedure of SAS. Drylot calves had greater (P < 0.01) BW at d 55 and 110. There was treatment by time interactions (P < 0.01) for lying and eating on d 111. More PAST calves were lying at h 2 and 3 and eating at h 11 and 12. More DL calves were lying at h 9, 10, 11, and 12. More DL calves were eating at h 2 and tended to at h 3. There was also a treatment by time interaction (P < 0.01) for vocalizations on d 111. More PAST calves vocalized at h 1, however, DL calves vocalized more at h 4 and tended to at h 5. There was treatment by time interactions (P < 0.01) for eating and walking on d 112. More DL calves were eating at h 2, 3, 4, 7, and 9. More PAST calves were walking at h 1 and 2. There was also a treatment by time interaction (P < 0.01) for vocalizations on d 112. More PAST calves vocalized at h 1 and 10. In conclusion, housing cow-calf pairs in drylots improved preweaning performance and altered postweaning behavior.


2021 ◽  
Vol 99 (Supplement_1) ◽  
pp. 147-148
Author(s):  
Lucas Hofer ◽  
Megan Myerscough ◽  
Wes Chapple ◽  
Travis T Meteer ◽  
Keela Trennepohl ◽  
...  

Abstract The objective was to compare the performance of cows housed in drylots or on pasture. Spring-calving, Simmental × Angus cow-calf pairs (n = 108; 77 ± 18 days postpartum) were stratified by age, body weight (BW), body condition score (BCS), calving date, and calf sex. Cows were allotted into six groups which were randomly assigned to drylot or pasture. Drylot cows were limit-fed a ration consisting of corn silage, dried distillers grain, corn stalks, cracked corn, and a corn-based supplement to meet protein and energy requirements. Cows on pasture were rotationally grazed with access to free-choice mineral. Cows were artificially inseminated on day 0. Cow BW, BCS, hair coat scores, locomotion scores, and lameness treatments were evaluated throughout the 110-day experiment. Milk production and composition were evaluated on day 56. Data were analyzed using the MIXED and GLIMMIX (binary data) procedures of SAS. Artificial insemination and overall pregnancy rates did not differ (P ≥ 0.79) between groups. Drylot cows were 22 and 51 kg heavier (P ≤ 0.02) than pasture cows on days 83 and 110, respectively. Drylot cow BCS was greater (P = 0.03) on day 110. Hair coat scores were more desirable (P = 0.03) in drylot cows than pasture cows on day 110. Drylot cows had greater (P = 0.04) milk production than pasture cows. Pasture cows had greater (P ≤ 0.03) milk protein content and milk urea nitrogen. Although locomotion scores did not differ (P ≥ 0.45) on days 0 and 34, they were less desirable (P = 0.02) for the drylot cows on day 110. A greater (P = 0.02) percentage of drylot cows (33%) were treated for lameness than pasture cows (7%). Housing cows in drylots increased BW, BCS, and milk production, but resulted in poorer locomotion scores and increased lameness treatments.


2011 ◽  
Vol 2011 ◽  
pp. 1-4 ◽  
Author(s):  
Shiyi Ou ◽  
Jing Zhang ◽  
Yong Wang ◽  
Ning Zhang

A mixture of wheat bran with maize bran as a carbon source and addition of (NH4)SO4 as nitrogen source was found to significantly increase production of feruloyl esterase (FAE) enzyme compared with wheat bran as a sole carbon and nitrogen source. The optimal conditions in conical flasks were carbon source (30 g) to water 1 : 1, maize bran to wheat bran 1 : 2, (NH4)SO4 1.2 g and MgSO4 70 mg. Under these conditions, FAE activity was 7.68 mU/g. The FAE activity on the mixed carbon sources showed, high activity against the plant cell walls contained in the cultures.


2012 ◽  
Vol 5 (1) ◽  
pp. 83-88 ◽  
Author(s):  
I. Rodrigues ◽  
L. Chin

As cereal and protein sources suffer a price increase worldwide, the use of alternative ingredients in feeds has become increasingly appealing to the animal industry. Dried distillers' grain and solubles (DDGS) have been one of the ingredients which demand has dramatically increased over the last few years. In fact, the supply of maize DDGS is expected to increase to about 38.6 mmt by 2019-2020. The presence of mycotoxins in these by-products has been a matter of concern raised by their ubiquitous use. A rule of thumb typically used in the field is that the concentration of mycotoxins in the final by-product is about three times higher than that of the original raw material, which may be scientifically backed up by the fact that the remaining portions within the by-product are those which had a higher concentration of mycotoxins (outer portions of the grain). This paper is the outcome of a five-year study during which a total of 409 maize DDGS samples sourced worldwide were analysed for the mycotoxins of major importance which cause the great negative impacts in animal performance and health: aflatoxins (a sum of aflatoxin B1, B2, G1, G2), zearalenone, deoxynivalenol, a sum fumonisins B1 and B2 and ochratoxin A. From the total of samples tested, only 2% of the analysed DDGS showed contamination levels below the limit of detection (negative samples). 6% of samples had the presence of 1 mycotoxin only and the majority (92% of the samples) was contaminated with 2 or more mycotoxins.


2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 146-146
Author(s):  
Dylan B Davis ◽  
Lee Jones ◽  
Shane R R Hernandez ◽  
Christina B Welch ◽  
Jennifer J Tucker ◽  
...  

Abstract The objective of this research was to determine the effects of whole cottonseed containing gossypol on post-pubertal beef bulls. In a two-year study, 46 Angus and Red Angus bulls (body weight 457.0 ± 85.2 kg; 16 to 20-months of age) were stratified by BW and randomly assigned to 1 of 3 levels of whole cottonseed supplementation while receiving ad libitum roughage. The treatments included: DD (n = 14, control; 3.18 kg/d of dried distillers grain, W/D (n = 16; 1.59 kg/d of whole cottonseed and 1.59 kg/d of dried distillers grain), or WW (n = 16 3.18 kg/d of whole cottonseed). Diets were formulated to be isocaloric and isonitrogenous. In both years, bulls were weighed, administered a breeding soundness exam, and morphological characteristics of spermatozoa were measured on d 0, 28, and 60. In year 1, blood and semen samples were collected on d 0, 28, and 60 to measure manganese superoxide dismutase activity. There was no treatment effect for blood or semen manganese superoxide dismutase concentration (P > 0.255). There was a treatment effect (P < 0.02) for average daily gain as bulls fed WW gained less compared to those fed WD and DD (0.96, 1.23, and 1.39 kg/d, respectively). No treatment effect was observed for scrotal circumference (P > 0.50). There were no treatment × time interactions, treatment, or time main effects for percentages of normal spermatozoa, spermatozoa with coiled or folded tails, or proximal droplets (P > 0.12). There was a treatment effect on the amount of swollen midpiece or abnormal head as bull in the DD treatment had a greater (P < 0.02) percentage of other abnormalities compared to WW, but WD was not different (P > 0.16). Inclusion of whole cottonseed may affect average daily gain, but does not affect reproductive parameters of beef bulls.


2019 ◽  
Vol 97 (Supplement_2) ◽  
pp. 7-8
Author(s):  
Lucas T Neira ◽  
Ashley E Cooney ◽  
Wesley P Chapple ◽  
William T Meteer ◽  
Daniel W Shike

Abstract The objectives were to analyze the effects of housing cow-calf pairs in dry lots (DL) or pasture (PAST) on calf performance and behavior through the receiving phase. Simmental × Angus (n = 108; 87 ± 11.5 d postpartum) spring-calving cows were stratified by age, BW, BCS, and calf sex and allotted to six groups. Cows were limit-fed a ration consisting of corn silage, dried distillers grain, corn stalks, dry rolled corn (DRC), and soybean hulls to meet protein and energy requirements. Calves had ad libitum access to same diet in an adjacent pen. Calves on PAST were rotationally grazed with free-choice mineral. After weaning (177 ± 11.5 d of age) all calves were fed a diet consisting of corn silage, wet distiller grains, DRC, and grass hay during the receiving phase (42 d). At the age 87, 142, 177, 198, and 219 ± 11.5 d, BW was measured. Hair coat score (HCS) and dirt score (DS) were measured on d 0 and d 90. Calf behavior was observed after feedlot arrival. Average daily gain, DMI and feed efficiency were also analyzed. The data were analyzed using the MIXED procedure of SAS. Dry-lot calves had greater (P < 0.01) BW and ADG prior to weaning. Calves from PAST had lower (P < 0.01) DS and greater (P < 0.01) HCS at weaning. Upon feedlot arrival, more (P < 0.01) DL calves were walking and had increased (P < 0.01) vocalizations. Calves from PAST had greater (P < 0.01) ADG, DMI as a percent of BW, and gain:feed than DL calves during the receiving phase. Calves raised in a dry lot had greater BW and ADG prior to weaning, but PAST calves had fewer behavioral signs of stress and greater growth performance in feedlot.


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