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https://www.readbyqxmd.com/read/29314036/multilayer-emulsions-as-a-strategy-for-linseed-oil-and-alpha-lipoic-acid-micro-encapsulation-study-on-preparation-and-in-vitro-characterization
#1
Juan Huang, Qiang Wang, Tong Li, Nan Xia, Qiang Xia
BACKGROUND: Linseed oil and alpha-lipoic acid are bioactive ingredients, which play an important role in human's nutrition and health. However, their application in functional foods is limited because of their instabilities and poor solubilities in hydrophilic matrices. Multilayer emulsions are particularly useful to protect encapsulated bioactive ingredients. The aim of this study was to fabricate multilayer emulsions by high pressure homogenization method to encapsulate linseed oil and alpha-lipoic acid simultaneously...
January 4, 2018: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29287444/polycyclic-aromatic-hydrocarbons-content-and-fatty-acids-profile-in-coconut-safflower-evening-primrose-and-linseed-oils
#2
Simone Alves da Silva, Elizabeth A F da Silva Torres, Adriana Palma de Almeida, Geni Rodrigues Sampaio
This study aimed at evaluating the polycyclic aromatic hydrocarbons (PAHs) contamination of commercial vegetable oils and examined the identity through the fatty acids profiles. Coconut, safflower, evening primrose, and linseed oils marketed in São Paulo (Brazil) were investigated totaling 69 samples. Four PAHs, benzo[a]anthracene (BaA), chrysene (Chr), benzo[b]fluoranthene (BbF), and benzo[a]pyrene (BaP), were detected in 96% of the samples at individual levels ranging from not detected to 14.99 μg kg-1...
April 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29277314/molecular-dynamics-of-palmitic-acid-and-lead-palmitate-in-cross-linked-linseed-oil-films-implications-from-deuterium-magnetic-resonance-for-lead-soap-formation-in-traditional-oil-paintings
#3
Jaclyn Catalano, Anna Murphy, Yao Yao, Nicholas Zumbulyadis, Silvia A Centeno, Cecil Dybowski
Many oil paintings, dating from the 15th century to the present, are affected by the formation of heavy-metal carboxylates (soaps) that alter the structural integrity and appearance of the works. Through transport phenomena not yet understood, free fatty acids formed from oils used as binders migrate through the paint film and react with heavy-metal ions that are constituents of pigments and/or driers, forming metal carboxylates. The local molecular dynamics of fatty acids and metal carboxylates are factors influencing material transport in these systems...
December 22, 2017: Solid State Nuclear Magnetic Resonance
https://www.readbyqxmd.com/read/29247959/triacylglycerol-hand-shape-profile-of-argan-oil-rapid-and-simple-uhplc-pda-esi-tof-ms-and-hptlc-methods-to-detect-counterfeit-argan-oil-and-argan-oil-based-products
#4
Giordana Pagliuca, Carlotta Bozzi, Francesca Romana Gallo, Giuseppina Multari, Giovanna Palazzino, Rita Porrà, Alessia Panusa
The marketing of new argan-based products is greatly increased in the last few years and consequently, it has enhanced the number of control analysis aimed at detecting counterfeit products claiming argan oil as a major ingredient. Argan oil is produced in Morocco and it is quite expensive. Two simple methods for the rapid screening of pure oil and argan-oil based products, focused on the analysis of the triacylglycerol profile, have been developed. A three-minute-run by UHPLC-PDA allows the identification of a pure argan oil, while the same run with the MS detector allows also the analysis of products containing the oil down to 0...
December 2, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/29233754/molecular-characterization-tissue-distribution-and-differential-nutritional-regulation-of-putative-elovl5-elongase-in-silver-barb-puntius-gonionotus
#5
Madhusmita Nayak, Avinash Pradhan, Shiba Shankar Giri, Mrinal Samanta, V Badireenath Konkimalla, Ashis Saha
Fatty acid desaturase (Fads) and elongase (Elovl) are two important enzymes involved in the biosynthesis of long-chain polyunsaturated fatty acids (LC-PUFAs) in fishes. Silver barb (Puntius gonionotus) is considered a promising medium carp species for freshwater aquaculture in Asia. Earlier, Δ6 fads cDNA was characterized to understand the molecular mechanism of LC-PUFA biosynthesis in this species. In the present study elovl5-like elongase full-length cDNA was cloned and characterized by RACE (rapid amplification of cDNA ends), and analyzed its basal expression in various organs/tissues by quantitative real time PCR (qRT-PCR) assay...
December 9, 2017: Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology
https://www.readbyqxmd.com/read/29224879/plant-oil-supplements-reduce-methane-emissions-and-improve-milk-fatty-acid-composition-in-dairy-cows-fed-grass-silage-based-diets-without-affecting-milk-yield
#6
A R Bayat, I Tapio, J Vilkki, K J Shingfield, H Leskinen
Four lipid supplements varying in chain length or degree of unsaturation were examined for their effects on milk yield and composition, ruminal CH4 emissions, rumen fermentation, nutrient utilization, and microbial ecology in lactating dairy cows. Five Nordic Red cows fitted with rumen cannulas were used in a 5 × 5 Latin square with five 28-d periods. Treatments comprised total mixed rations based on grass silage with a forage-to-concentrate ratio of 60:40 supplemented with no lipid (CO) or 50 g/kg of diet dry matter (DM) of myristic acid (MA), rapeseed oil (RO), safflower oil (SO), or linseed oil (LO)...
December 7, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29151396/effect-of-dietary-sources-of-n-3-fatty-acids-on-pig-performance-and-technological-nutritional-and-sensory-qualities-of-pork
#7
A de Tonnac, J Mourot
In France, animal products (dairy products, meat and eggs) are the main source of n-3 polyunsaturated fatty acids (PUFA) in the human diet; however, many individuals do not consume enough of this nutrient. The objective of this study was to increase n-3 PUFA precursor and derivative contents in tissues and test how they influence technological and sensory qualities of meat without negatively affecting growth performances of pigs. A total of 60 male pigs [(Large White×Landrace)×Pietrain] were assigned according to their initial liveweight (50...
November 20, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29149057/effects-of-surfactants-on-the-preparation-of-nanocellulose-pla-composites
#8
Kirsi Immonen, Panu Lahtinen, Jaakko Pere
Thermoplastic composite materials containing wood fibers are gaining increasing interest in the manufacturing industry. One approach is to use nano- or micro-size cellulosic fibrils as additives and to improve the mechanical properties obtainable with only small fibril loadings by exploiting the high aspect ratio and surface area of nanocellulose. In this study, we used four different wood cellulose-based materials in a thermoplastic polylactide (PLA) matrix: cellulose nanofibrils produced from softwood kraft pulp (CNF) and dissolving pulp (CNFSD), enzymatically prepared high-consistency nanocellulose (HefCel) and microcellulose (MC) together with long alkyl chain dispersion-improving agents...
November 17, 2017: Bioengineering
https://www.readbyqxmd.com/read/29122055/extruded-linseed-alone-or-in-combination-with-fish-oil-modifies-mammary-gene-expression-profiles-in-lactating-goats
#9
Y Faulconnier, L Bernard, C Boby, J Domagalski, Y Chilliard, C Leroux
Nutrition is a major factor that regulates ruminant milk components, particularly its fatty acid (FA) composition, which is an important determinant of milk nutritional quality. In the mammary gland, milk component biosynthesis involves a large number of genes under nutritional regulation that are not well understood. Thus, the objective of the present study was to evaluate the effects of extruded linseeds (EL) alone or in combination with fish oil (ELFO) on goat mammary gene expression. In total, 14 goats were fed one of the following three diets: a natural grassland hay basal diet (CTRL) alone, CTRL supplemented with 530 g/day of EL, or 340 g/day of EL plus 39 g/day of fish oil (ELFO)...
November 10, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29108075/polyunsaturated-fatty-acids-are-less-effective-to-reduce-methanogenesis-in-rumen-inoculum-from-calves-exposed-to-a-similar-treatment-early-in-life
#10
A Ruiz-González, S Debruyne, J Jeyanathan, L Vandaele, S De Campeneere, V Fievez
The aim of this study was to evaluate the dose response on in vitro methane (CH) production of PUFA to which the inoculum donor animals had been exposed early in life. Sixteen Holstein calves (160 ± 3 and 365 ± 2 kg BW) at 6 and 12 mo of age were used as inoculum donors. Half of the calves were given increasing amounts of extruded linseed from birth (22 g/d) until 4 mo of age (578 g/d) first mixed with milk and then included in their concentrate. Linseed oil (LSO) was supplemented in vitro at 5 different doses (0, 0...
October 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/29051643/synthesis-characteristics-and-evaluation-of-antioxidant-activity-of-1-tannin-ether-ethyl-stearate
#11
Kang Zhang, Xiaohua Zhang, Yan Li, Xinxin Wang, Qing Cao, Li'e Jin
The [1-(tannin-ether)-ethyl]stearate (TEES) was synthesized by two-stage process successfully. 1-Chloroethyl tannin ether (CTE), as an intermediate, was initially prepared with tannic acid (TA) and paraldehyde. Then, the TEES was synthesized by sodium stearate and CTE in the presence of FeCl3-PEG-400 as phase-transfer catalyst. Synthetic conditions were optimized. The structural characteristics of TEES were analyzed by FTIR, (1)H NMR and UV-vis techniques. And the thermal stability of TEES was investigated...
October 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/29051634/low-sat-structured-fats-enriched-in-%C3%AE-linolenic-acid-physicochemical-properties-and-crystallization-characteristics
#12
Marcella Aparecida Stahl, Monise Helen Masuchi Buscato, Renato Grimaldi, Lisandro Pavie Cardoso, Ana Paula Badan Ribeiro
This work sought to obtain and evaluate zero trans-fat reduced in saturated fatty acids, with higher content of unsaturated fatty acids. Palm oil (PO) was used as the reference of zero trans lipid base. Different amounts of linseed oil (LO) were added to PO, obtaining the following blends: 100:0; 80:20; 60:40; 40:60; 20:80 and 0:100 of PO:LO (w/w%), respectively. These blends were added to fully hydrogenated soybean oil (FHSO) as the crystallization modifying agent, and to sorbitan monostearate (SMS) as the structuring element, both at a proportion of 3% to build the structured fractions...
October 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/29038781/comparison-between-fish-and-linseed-oils-administered-orally-for-the-treatment-of-experimentally-induced-keratoconjunctivitis-sicca-in-rabbits
#13
Danielle Alves Silva, Gisele Alborgetti Nai, Rogério Giuffrida, Rafael Cabral Barbero, Jacqueline Marcussi Pereira Kuhn, Andressa Caroline da Silva, Ricardo Henrique Zakir Pereira, Maria Fernanda Abbade, Luiz Felipe da Costa Zulim, Carolina Silva Guimarães Pereira, Silvia Franco Andrade
The objective of this study was to compare the efficacy of two sources of omega 3 and 6, fish oil (FO) and linseed oil (LO), orally administered, alone or in combination, for treating experimentally induced keratoconjunctivitis sicca (KCS) in rabbits. Twenty-eight New Zealand rabbits were used in this study. Seven animals were allocated to the C group (negative control), and KCS was induced in 21 animals by topically applying 1% atropine sulfate drops for 7 days. Treatment with atropine was maintained throughout the study period (12 weeks)...
2017: Open Veterinary Journal
https://www.readbyqxmd.com/read/28993783/genetic-variability-of-27-traits-in-a-core-collection-of-flax-linum-usitatissimum-l
#14
Frank M You, Gaofeng Jia, Jin Xiao, Scott D Duguid, Khalid Y Rashid, Helen M Booker, Sylvie Cloutier
Assessment of genetic variability of plant core germplasm is needed for efficient germplasm utilization in breeding improvement. A total of 391 accessions of a flax core collection, which preserves the variation present in the world collection of 3,378 accessions maintained by Plant Gene Resources of Canada (PGRC) and represents a broad range of geographical origins, different improvement statuses and two morphotypes, was evaluated in field trials in up to 8 year-location environments for 10 agronomic, eight seed quality, six fiber and three disease resistance traits...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28972778/dietary-effects-on-stable-carbon-isotope-composition-of-fatty-acids-in-polar-and-neutral-fractions-of-intramuscular-fat-of-lambs
#15
Katryna A van Leeuwen, Federica Camin, Eliana Jerónimo, Valentina Vasta, Paul D Prenzler, Danielle Ryan, Rui J B Bessa
In this study we measured δ(13)C values of the main fatty acids (FA) present in neutral and polar intramuscular lipids of meat samples from 24 lambs, fed with four different diets supplemented with sunflower and linseed oil and the tanniferous shrub Cistus ladanifer L. The objective was to understand if the increase in intramuscular fat observed in lambs fed simultaneously C. ladanifer and oil was explained mostly by incorporation of diet derived FA or by increased de novo FA synthesis. De novo FA synthesis was evaluated by (13)C enrichment (‰) of 16:0 in intramuscular lipids compared to bulk diet or compared to dietary 16:0...
October 19, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28965514/parental-nutritional-programming-and-a-reminder-during-juvenile-stage-affect-growth-lipid-metabolism-and-utilisation-in-later-developmental-stages-of-a-marine-teleost-the-gilthead-sea-bream-sparus-aurata
#16
Serhat Turkmen, Maria J Zamorano, Hipólito Fernández-Palacios, Carmen M Hernández-Cruz, Daniel Montero, Lidia Robaina, Marisol Izquierdo
Nutrition during periconception and early development can modulate metabolic routes to prepare the offspring for adverse conditions through a process known as nutritional programming. In gilthead sea bream, replacement of fish oil (FO) with linseed oil (LO) in broodstock diets improves growth in the 4-month-old offspring challenged with low-FO and low-fishmeal (FM) diets for 1 month. The present study further investigated the effects of broodstock feeding on the same offspring when they were 16 months old and were challenged for a second time with the low-FM and low-FO diet for 2 months...
October 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28958563/structurally-modified-pectin-for-targeted-lipid-antioxidant-capacity-in-linseed-sunflower-oil-in-water-emulsions
#17
Miete Celus, Laura Salvia-Trujillo, Clare Kyomugasho, Ine Maes, Ann M Van Loey, Tara Grauwet, Marc E Hendrickx
The present work explored the lipid antioxidant capacity of citrus pectin addition to 5%(w/v) linseed/sunflower oil emulsions stabilized with 0.5%(w/v) Tween 80, as affected by pectin molecular characteristics. The peroxide formation in the emulsions, containing tailored pectin structures, was studied during two weeks of storage at 35°C. Low demethylesterified pectin (≤33%) exhibited a higher antioxidant capacity than high demethylesterified pectin (≥58%), probably due to its higher chelating capacity of pro-oxidative metal ions (Fe(2+)), whereas the distribution pattern of methylesters along the pectin chain only slightly affected the antioxidant capacity...
February 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/28955471/the-fungal-composition-of-natural-biofinishes-on-oil-treated-wood
#18
Elke J van Nieuwenhuijzen, Jos A M P Houbraken, Peter J Punt, Guus Roeselers, Olaf C G Adan, Robert A Samson
BACKGROUND: Biofinished wood is considered to be a decorative and protective material for outdoor constructions, showing advantages compared to traditional treated wood in terms of sustainability and self-repair. Natural dark wood staining fungi are essential to biofinish formation on wood. Although all sorts of outdoor situated timber are subjected to fungal staining, the homogenous dark staining called biofinish has only been detected on specific vegetable oil-treated substrates. Revealing the fungal composition of various natural biofinishes on wood is a first step to understand and control biofinish formation for industrial application...
2017: Fungal Biology and Biotechnology
https://www.readbyqxmd.com/read/28918153/linseed-oil-and-dgat1-k232a-polymorphism-effects-on-methane-emission-energy-and-nitrogen-metabolism-lactation-performance-ruminal-fermentation-and-rumen-microbial-composition-of-holstein-friesian-cows
#19
S van Gastelen, M H P W Visker, J E Edwards, E C Antunes-Fernandes, K A Hettinga, S J J Alferink, W H Hendriks, H Bovenhuis, H Smidt, J Dijkstra
Complex interactions between rumen microbiota, cow genetics, and diet composition may exist. Therefore, the effect of linseed oil, DGAT1 K232A polymorphism (DGAT1), and the interaction between linseed oil and DGAT1 on CH4 and H2 emission, energy and N metabolism, lactation performance, ruminal fermentation, and rumen bacterial and archaeal composition was investigated. Twenty-four lactating Holstein-Friesian cows (i.e., 12 with DGAT1 KK genotype and 12 with DGAT1 AA genotype) were fed 2 diets in a crossover design: a control diet and a linseed oil diet (LSO) with a difference of 22 g/kg of dry matter (DM) in fat content between the 2 diets...
November 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28912768/linseed-oil-supplementation-of-lambs-diet-in-early-life-leads-to-persistent-changes-in-rumen-microbiome-structure
#20
Tamsin Lyons, Tommy Boland, Sean Storey, Evelyn Doyle
Diet has been shown to have a significant impact on microbial community composition in the rumen and could potentially be used to manipulate rumen microbiome structure to achieve specific outcomes. There is some evidence that a window may exist in early life, while the microbiome is being established, where manipulation through diet could lead to long-lasting results. The aim of this study was to test the hypothesis that dietary supplementation in early life will have an effect on rumen microbial composition that will persist even once supplementation is ceased...
2017: Frontiers in Microbiology
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