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https://www.readbyqxmd.com/read/28415514/synthesis-and-characterization-of-cycloaliphatic-hydrophilic-polyurethanes-modified-with-l-ascorbic-acid-as-materials-for-soft-tissue-regeneration
#1
J Kucinska-Lipka, I Gubanska, M Strankowski, H Cieśliński, N Filipowicz, H Janik
In this paper we described synthesis and characteristic of obtained hydrophilic polyurethanes (PURs) modified with ascorbic acid (commonly known as vitamin C). Such materials may find an application in the biomedical field, for example in the regenerative medicine of soft tissues, according to ascorbic acid wide influence on tissue regeneration Flora (2009), Szymańska-Pasternak et al. (2011), Taikarimi and Ibrahim (2011), Myrvik and Volk (1954), Li et al. (2001), Cursino et al. (2005) . Hydrophilic PURs were obtained with the use of amorphous α,ω-dihydroxy(ethylene-butylene adipate) (dHEBA) polyol, 1,4-butanediol (BDO) chain extender and aliphatic 4,4'-methylenebis(cyclohexyl isocyanate) (HMDI)...
June 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28414112/binding-of-erucic-acid-with-human-serum-albumin-using-a-spectroscopic-and-molecular-docking-study
#2
Gulam Rabbani, Mohammad Hassan Baig, Arif Tasleem Jan, Eun Ju Lee, Mohsin Vahid Khan, Masihuz Zaman, Abd-ElAziem Farouk Gad, Rizwan Hasan Khan, Inho Choi
Erucic acid (EA) is one of the key fatty acids usually found in canola oil, mustard oil and rapeseed oil. Consumption of EA in primates was found to cause myocardial lipidosis and cardiac steatosis. To have an insight of the effect of EA in humans, we performed in vitro interaction studies of EA with the primary plasma protein, human serum albumin (HSA). Spectroscopic (UV-vis and fluorescence) analysis of the EA-HSA interaction revealed a static mode of quenching, with binding constant Kb ∼10(4) reflecting high affinity of EA for HSA...
April 13, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28410612/milk-protein-based-formulas-containing-different-oils-affect-fatty-acids-balance-in-term-infants-a-randomized-blinded-crossover-clinical-trial
#3
Carolina Oliveira de Souza, Maria Efigênia Q Leite, John Lasekan, Geraldine Baggs, Lorena Silva Pinho, Janice Izabel Druzian, Tereza Cristina M Ribeiro, Ângela P Mattos, José A Menezes-Filho, Hugo Costa-Ribeiro
BACKGROUND: Palm olein is used in infant formula fat blends in order to match the fatty acid profile of human milk. While the effects on fatty acid balance have been evaluated, the use of palm olein in combination with palm kernel oil and supplementation with docosahexaenoic acid (DHA) and arachidonic acid (ARA) has not been similarly assessed in infants. This study evaluated the effects of infant formulas containing different fat compositions on the balance of fat, fatty acids, and calcium...
April 14, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28405304/reduced-abundance-and-earlier-collection-of-bumble-bee-workers-under-intensive-cultivation-of-a-mass-flowering-prairie-crop
#4
Paul Galpern, Sarah A Johnson, Jennifer L Retzlaff, Danielle Chang, John Swann
One of the most commonly seeded crops in Canada is canola, a cultivar of oilseed rape (Brassica napus). As a mass-flowering crop grown intensively throughout the Canadian Prairies, canola has the potential to influence pollinator success across tens of thousands of square kilometers of cropland. Bumble bees (Bombus sp.) are efficient pollinators of many types of native and crop plants. We measured the influence of this mass-flowering crop on the abundance and phenology of bumble bees, and on another species of social bee (a sweat bee; Halictus rubicundus), by continuously deploying traps at different levels of canola cultivation intensity, spanning the start and end of canola bloom...
April 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28400199/viruses-of-managed-alfalfa-leafcutting-bees-megachille-rotundata-fabricus-and-honey-bees-apis-mellifera-l-in-western-canada-incidence-impacts-and-prospects-of-cross-species-viral-transmission
#5
Andony Melathopoulos, Lynae Ovinge, Patricia Wolf Veiga, Carlos Castillo, David Ostermann, Shelley Hoover
We examined whether alfalfa leafcutting bees (ALCB, Megachille rotundata) experienced a higher incidence of seven viruses commonly found honey bees (Apis mellifera) when placed alongside honey bees for hybrid canola seed pollination. Although two viruses - sacbrood virus (SBV) and deformed wing virus (DWV) - were detected in ALCB adults, their presence appeared independent of whether honey bees were present in the same field or not. A further survey of viruses among ALCB adults in three different alfalfa seed growing regions in Western Canada confirmed the ubiquity of sacbrood virus (SBV) as well as the infrequent presence of acute bee paralysis virus (ABPV), both of which had not been previously reported on ALCB...
April 8, 2017: Journal of Invertebrate Pathology
https://www.readbyqxmd.com/read/28390728/between-cow-variation-in-digestion-and-rumen-fermentation-variables-associated-with-methane-production
#6
E H Cabezas-Garcia, S J Krizsan, K J Shingfield, P Huhtanen
A meta-analysis based on an individual-cow data set was conducted to investigate the effects of between-cow variation and related animal variables on predicted CH4 emissions from dairy cows. Data were taken from 40 change-over studies consisting of a total of 637 cow/period observations. Animal production and rumen fermentation characteristics were measured for 154 diets in 40 studies; diet digestibility was measured for 135 diets in 34 studies, and ruminal digestion kinetics was measured for 56 diets in 15 studies...
April 5, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28374340/ketoprofen-microemulsion-for-improved-skin-delivery-and-in-vivo-anti-inflammatory-effect
#7
Ana Luisa Murbach Aliberti, Alemer Cortat de Queiroz, Fabíola Silva Garcia Praça, Josimar O Eloy, Maria Vitória Lopes Badra Bentley, Wanessa Silva Garcia Medina
We have designed a microemulsion (ME) containing Ketoprofen (KET) for anti-inflammatory effect evaluated using the rat paw edema model. The ME was prepared by adding propylene glycol (PG) loaded with 1% KET/water (3:1, w/w), to a mixture of sorbitan monooleate and polysorbate 80 (47.0%) at 3:1 (w/w) and canola oil (38.0%). The physicochemical characterization of KET-loaded ME involved particle size and zeta potential determination, entrapment efficiency, calorimetric analysis, and in vitro drug release. The in vivo anti-inflammatory study employed male Wistar rats...
April 3, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/28371769/utilization-of-microbial-oil-obtained-from-crude-glycerol-for-the-production-of-polyol-and-its-subsequent-conversion-to-polyurethane-foams
#8
Bijaya K Uprety, Jayanth Venkatarama Reddy, Sai Swaroop Dalli, Sudip K Rakshit
We have demonstrated possible use of microbial oil in biopolymer industries. Microbial oil was produced from biodiesel based crude glycerol and subsequently converted into polyol. Fermentation of crude glycerol in a batch bioreactor using Rhodosporidium toruloides ATCC 10788 produced 18.69g/L of lipid at the end of 7days. The microbial oil was then chemically converted to polyol and characterized using FT-IR and (1)H NMR. For comparison, canola oil and palm oil were also converted into their respective polyols...
March 24, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28345698/ethylcellulose-oleogels-for-lipophilic-bioactive-delivery-effect-of-oleogelation-on-in-vitro-bioaccessibility-and-stability-of-beta-carotene
#9
Chloe M O Sullivan, Maya Davidovich-Pinhas, Amanda J Wright, Shai Barbut, Alejandro G Marangoni
The in vitro lipolysis and β-carotene (BC) transfer from oil to aqueous phase of canola oil ethylcellulose (EC) oleogels were measured using a static monocompartmental model simulating oral, gastric, and duodenal digestive stages. The effects of EC oleogelation on gel in vitro digestibility were examined, using un-structured canola oil as a control. The physicochemical properties of oleogels containing BC were also measured. It was found that oleogels made with 10% 10 cP and 10% 20 cP did not differ significantly in their extent of lipolysis or BC transfer compared to canola oil; however 10% 45 cP and 15...
April 19, 2017: Food & Function
https://www.readbyqxmd.com/read/28339841/nutritive-value-and-the-maximum-inclusion-level-of-pennycress-meal-for-broiler-chickens
#10
R A Alhotan, R L Wang, R A Holser, G M Pesti
Two experiments were conducted to evaluate the nutritive value and maximum safe level (MSL) of pennycress meal (PM) for broiler chicks. In experiment 1, a total of 480 chicks was fed either mash or crumbled diets containing zero, 5, 10, or 15% PM for 18 d (8 diets; 6 replications per diet). In experiment 2, a total of 660 chicks was fed mash diets containing zero, 3, 6, 9, 12, or 15% of either PM or canola meal (CM; a comparative reference) for 14 d (11 diets; 6 replications per diet). Analytical results show that PM is a good source of protein (∼31% CP) and it is very comparable to CM (∼36% CP)...
February 23, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339711/interactions-of-full-fat-canola-seed-oat-hulls-as-an-insoluble-fiber-source-and-pellet-temperature-for-nutrient-utilization-and-growth-performance-of-broiler-chickens
#11
R Barekatain, R A Swick, M Toghyani, C T de Koning
The effectiveness of the addition of oat hulls (OH) as an insoluble fiber for improving nutrient digestibility and performance of birds fed diets containing full-fat canola seed (CS) was studied. A 2 × 2 × 2 factorial arrangement of treatments was used to assess the main effects of canola source (CS vs canola meal plus oil as control), OH (0 or 3%), pellet temperature (75 and 90°C) and their interactions. A total of 576 male day-old Ross 308 chickens were assigned to 8 experimental treatments, each replicated 6 times (12 birds per replicate)...
February 22, 2017: Poultry Science
https://www.readbyqxmd.com/read/28332746/global-analysis-of-canola-genes-targeted-by-short-hypocotyl-under-blue-1-during-endosperm-and-embryo-development
#12
Huanan Zhang, Feng Cheng, Yu-Guo Xiao, Xiao-Jun Kang, Xiaowu Wang, Rui Kuang, Min Ni
Seed development in dicots undergoes an early endosperm proliferation, followed by the growth of embryo to replace the endosperm. Endosperm proliferation in dicots not only provides nutrient supplies for subsequent embryo development but also enforces a space limitation to influence the final seed size. Overexpression of Arabidopsis SHORT HYPOCOTYL UNDER BLUE1::GUS (SHB1:GUS) in canola produced large seeds. We performed global analysis of canola genes that were expressed and influenced by SHB1 during early endosperm proliferation at 8 days after pollination (DAP) and late embryo development at 13 DAP...
March 23, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28298391/vitamin-a-supplementation-redirects-the-flow-of-retinyl-esters-from-peripheral-to-central-organs-of-neonatal-rats-raised-under-vitamin-a-marginal-conditions
#13
Joanna K Hodges, Libo Tan, Michael H Green, A Catharine Ross
Background: Vitamin A (VA; retinol) supplementation is used to reduce child mortality in countries with high rates of malnutrition. Existing research suggests that neonates (<1 mo old) may have a limited capacity to store VA in organs other than the liver; however, knowledge about VA distribution and kinetics in individual, nonhepatic organs is limited.Objective: We examined retinol uptake and turnover in nonhepatic organs, including skin, brain, and adipose tissue, in neonatal rats without and after VA supplementation...
March 15, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28258752/long-term-stabilization-of-crop-residues-and-soil-organic-carbon-affected-by-residue-quality-and-initial-soil-ph
#14
Xiaojuan Wang, Clayton R Butterly, Jeff A Baldock, Caixian Tang
Residues differing in quality and carbon (C) chemistry are presumed to contribute differently to soil pH change and long-term soil organic carbon (SOC) pools. This study examined the liming effect of different crop residues (canola, chickpea and wheat) down the soil profile (0-30cm) in two sandy soils differing in initial pH as well as the long-term stability of SOC at the amended layer (0-10cm) using mid-infrared (MIR) and solid-state (13)C nuclear magnetic resonance (NMR) spectroscopy. A field column experiment was conducted for 48months...
February 28, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28247590/remarkably-efficient-microvawe-assisted-cross-metathesis-of-lipids-in-solvent-free-conditions
#15
Aman Ullah, Muhammad Arshad
Catalytic transformation of renewable feed stocks into fine chemicals is in high demands and olefin metathesis is one of the sophisticated tools for biomass conversion. Nevertheless, the large scale viability of such processes depends on the conversion efficiency, energy efficiency, catalytic activity, selective conversion into desired products and environmental footprint of the process. Thus, conversions of renewables using simple, swift, and efficient methods are desirable. A microwave-assisted ethenolysis and alkenolysis (using 1-5 hexadiene) of canola oil and methyl esters derived from canola oil (COME) and waste/recycled cooking oil (WOME) was carried out using ruthenium based catalytic systems...
February 28, 2017: ChemSusChem
https://www.readbyqxmd.com/read/28239060/polydimethylsiloxane-droplets-exhibit-extraordinarily-high-antioxidative-effects-in-deep-frying
#16
Nagao Totani, Naoko Yazaki, Miho Yawata
The addition of more than about 1 ppm polydimethylsiloxane (PDMS) into oil results in PDMS forming both a layer at the oil-air interface and droplets suspended in the oil. It is widely accepted that the extraordinarily strong and stable antioxidative effects of PDMS are due to the PDMS layer. However, the PDMS layer showed no antioxidative effects when canola oil did not contain droplets but rather was covered with a layer of PDMS, then subjected to heating under high agitation to mimic deep-frying. Furthermore, no antioxidative effect was exhibited by oil-soluble methylphenylsiloxane (PMPS) in canola oil or by PDMS in PDMS-soluble canola oil fatty acid ester during heating, suggesting that PDMS must be insoluble and droplets in oil in order for PDMS to exhibit an antioxidative effect during deep-frying...
February 24, 2017: Journal of Oleo Science
https://www.readbyqxmd.com/read/28222234/transcriptome-analysis-of-the-brassica-napus-leptosphaeria-maculans-pathosystem-identifies-receptor-signaling-and-structural-genes-underlying-plant-resistance
#17
Michael G Becker, Xuehua Zhang, Philip L Walker, Joey C Wan, Jenna L Millar, Deirdre Khan, Matthew J Granger, Jacob D Cavers, Ainsley C Chan, Dilantha W G Fernando, Mark F Belmonte
The hemibiotrophic fungal pathogen Leptosphaeria maculans is the causal agent of blackleg disease in Brassica napus (canola, oilseed rape) and causes significant loss of yield worldwide. While genetic resistance has been used to mitigate the disease by means of traditional breeding strategies, there is little knowledge about the genes that contribute to blackleg resistance. RNA sequencing and a streamlined bioinformatics pipeline identified unique genes and plant defense pathways specific to plant resistance in the B...
May 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28215079/effect-of-furan-fatty-acids-and-3-methyl-2-4-nonanedione-on-light-induced-off-odor-in-soybean-oil
#18
Takashi Sano, Ryo Okabe, Maiko Iwahashi, Jun Imagi, Toshiro Sato, Toshiyuki Yamashita, Eiichiro Fukusaki, Takeshi Bamba
Soybean oil is one of the most widely consumed vegetable oils. However, under photooxidative conditions, this oil develops a beany and green off-odor through a mechanism that has not yet been elucidated. Upon photooxidation, 3-methyl-2,4-nonanedione (3-MND) produces a strong aroma. In this study, the effect of furan fatty acids and 3-MND on odor reversion in soybean oil was investigated. Our findings suggest that the observed light-induced off-odor was likely attributable to the furan fatty acids present in the oil through the generation of 3-MND...
February 28, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28207756/structural-changes-on-a-molecular-basis-of-canola-meal-by-conditioning-temperature-and-time-during-pelleting-process-in-relation-to-physiochemical-energy-and-protein-properties-relevant-to-ruminants
#19
Xuewei Huang, Huihua Zhang, Peiqiang Yu
The objectives of this study were: (1) To investigate the effects of conditioning temperature (70, 80, 90°C), time (30, 60 sec), and interaction (temperature × time) during the pelleting process on internal protein molecular structure changes of the co-products; (2) To identify differences in protein molecular structures among pellets that were processed under different conditions, and between unprocessed mash and pellets; 3) To quantify protein molecular structure changes in relation to predicted energy and protein utilization in dairy cows...
2017: PloS One
https://www.readbyqxmd.com/read/28197856/determination-of-substrate-preferences-for-desaturases-and-elongases-for-production-of-docosahexaenoic-acid-from-oleic-acid-in-engineered-canola
#20
Jenny Lindberg Yilmaz, Ze Long Lim, Mirela Beganovic, Steven Breazeale, Carl Andre, Sten Stymne, Patricia Vrinten, Toralf Senger
Production of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in plant seed oils has been pursued to improve availability of these omega-3 fatty acids that provide important human health benefits. Canola (Brassica napus), through the introduction of 10 enzymes, can convert oleic acid (OLA) into EPA and ultimately DHA through a pathway consisting of two elongation and five desaturation steps. Herein we present an assessment of the substrate specificity of the seven desaturases and three elongases that were introduced into canola by expressing individual proteins in yeast...
March 2017: Lipids
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