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fish oil and oxidation

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https://www.readbyqxmd.com/read/28103390/physicochemical-property-and-oxidative-stability-of-whey-protein-concentrate-multiple-nanoemulsion-containing-fish-oil
#1
Jae-Young Hwang, Ho-Kyung Ha, Mee-Ryung Lee, Jin Wook Kim, Hyun-Jin Kim, Won-Jae Lee
The objectives of this research were to produce whey protein concentrate (WPC) multiple nanoemulsion (MNE) and to study how whey protein concentration level and antioxidant type affected the physicochemical properties and oxidative stability of fish oil in MNE. The morphological and physicochemical characteristics of MNE were investigated by using transmission electron microscopy and particle size analyzer, respectively. The oxidative stability of fish oil in MNEs was assessed by measuring peroxide value (PV), p-anisidine value, and volatile compounds...
January 19, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28100886/characterization-of-volatile-compounds-with-hs-spme-from-oxidized-n-3-pufa-rich-oils-via-rancimat-tests
#2
Kai-Min Yang, Ming-Ching Cheng, Chih-Wei Chen, Chin-Yin Tseng, Li-Yun Lin, Po-Yuan Chiang
Algae oil and fish oil are n-3 PUFA mainstream commercial products. The various sources for the stability of n-3 PUFA oxidation are influenced by the fatty acid composition, extraction and refined processing. In this study, the oil stability index (OSI) occurs within 2.3 to 7.6 hours with three different n-3 PUFA rich oil. To set the OSI in the Rancimat test as the oil stability limit and observed various degrees of oxidation (0, 25, 50, 75, 100 and 125%). The volatile oxidation compounds were analyzed via headspace-solid phase microextraction (HS-SPME) and GC/MS...
January 18, 2017: Journal of Oleo Science
https://www.readbyqxmd.com/read/28088639/docosahexaenoic-acid-loaded-lipid-nanoparticles-with-bactericidal-activity-against-helicobacter-pylori
#3
Catarina Leal Seabra, Cláudia Nunes, Maria Gomez-Lazaro, Marta Correia, José Carlos Machado, Inês C Gonçalves, Celso A Reis, Salette Reis, M Cristina L Martins
Docosahexaenoic acid (DHA), an omega-3 polyunsaturated fatty acid present in fish oil, has been described as a promising molecule to the treatment of Helicobacter pylori gastric infection. However, due to its highly unsaturated structure, DHA can be easily oxidized loosing part of its bioactivity. This work aims the nanoencapsulation of DHA to improve its bactericidal efficacy against H. pylori. DHA was loaded into nanostructured lipid carriers (NLC) produced by hot homogenization and ultrasonication using a blend of lipids (Precirol ATO5(®), Miglyol-812(®)) and a surfactant (Tween 60(®))...
January 11, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28064013/changes-in-liver-proteins-of-rats-fed-standard-and-high-fat-and-sucrose-diets-induced-by-fish-omega-3-pufas-and-their-combination-with-grape-polyphenols-according-to-quantitative-proteomics
#4
Lucía Méndez, Sergio Ciordia, María Soledad Fernández, Silvia Juárez, Antonio Ramos, Manuel Pazos, José M Gallardo, Josep Lluís Torres, M Rosa Nogués, Isabel Medina
This study considered the physiological modulation of liver proteins due to the supplementation with fish oils under two dietary backgrounds: standard or high in fat and sucrose (HFHS), and their combination with grape polyphenols. By using a quantitative proteomics approach, we showed that the capacity of the supplements for regulating proteins depended on the diet; namely, 10 different proteins changed into standard diets, while 45 changed into the HFHS diets and only scarcely proteins were found altered in common...
December 21, 2016: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28058465/fish-oil-supplementation-attenuates-neuroinflammation-and-alleviates-depressive-like-behavior-in-rats-submitted-to-repeated-lipopolysaccharide
#5
Ruili Dang, Xueyuan Zhou, Mimi Tang, Pengfei Xu, Xiaoxue Gong, Yuanyuan Liu, Hongxiao Jiao, Pei Jiang
PURPOSE: Depression is frequently associated with inflammation, whereas omega-3 polyunsaturated fatty acids (PUFAs) primarily found in fish oil possess anti-inflammatory properties. Although converging studies suggest an antidepressant effect of PUFAs, there is limited evidence directly linking the neuro-immune modulating features of PUFAs to the antidepressant actions. METHODS: Therefore, we assessed the effects of fish oil (FO) supplementation on behavioral changes, inflammatory cytokine expression and oxidative reactions in frontal cortex and hippocampus of rats following repeated peripheral immune challenge by lipopolysaccharide (LPS) for 2 weeks (500 μg/kg every other day)...
January 5, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28038469/polyunsaturated-fatty-acids-ameliorate-aging-via-redox-telomere-antioncogene-axis
#6
Jingnan Chen, Yan Wei, Xinyu Chen, Jingjing Jiao, Yu Zhang
Polyunsaturated fatty acids (PUFA), a group of nourishing and health-promoting nutrients, ameliorate age-related chronic diseases. However, how PUFA especially n-3 PUFA exert anti-aging functions remains poorly understood. Here we link fish oil, docosahexaenoic acid (DHA) and arachidonic acid (AA) to the aging etiology via a redox-telomere-antioncogene axis based on D-galactose-induced aging mice. Both fish oil and PUFA enhanced hepatic superoxide dismutase (SOD) and catalase activities and cardiac SOD activities within the range of 18%-46%, 26%-65% and 19%-58%, respectively, whereas reduced cerebral monoamine oxidase activity, plasma F2-isoprostane level and cerebral lipid peroxidation level by 56%-90%, 20%-79% and 16%-54%, respectively...
December 26, 2016: Oncotarget
https://www.readbyqxmd.com/read/28038348/i-biomarker-quantification-in-fish-exposed-to-crude-oil-as-input-to-species-sensitivity-distributions-and-threshold-values-for-environmental-monitoring
#7
Steinar Sanni, Carina Björkblom, Henrik Jonsson, Brit F Godal, Birgitta Liewenborg, Emily Lyng, Daniela M Pampanin
The aim of this study was to determine a suitable set of biomarker based methods for environmental monitoring in sub-arctic and temperate offshore areas using scientific knowledge on the sensitivity of fish species to dispersed crude oil. Threshold values for environmental monitoring and risk assessment were obtained based on a quantitative comparison of biomarker responses. Turbot, halibut, salmon and sprat were exposed for up to 8 weeks to five different sub-lethal concentrations of dispersed crude oil. Biomarkers assessing PAH metabolites, oxidative stress, detoxification system I activity, genotoxicity, immunotoxicity, endocrine disruption, general cellular stress and histological changes were measured...
December 20, 2016: Marine Environmental Research
https://www.readbyqxmd.com/read/28032480/fish-oil-and-wheat-germ-oil-supplementation-modulates-brain-injury-in-streptozotocin-induced-diabetic-rats
#8
Naglaa Khedr
BACKGROUND: Uncontrolled diabetes mellitus (DM) results in neuronal damage caused by increased intracellular glucose. The addition of natural products as complementary therapy can reduce neuronal complications. The main objectives of this study was to determine whether fish oil (FO) and wheat germ oil (WGO) supplementation protect rat brains in streptozotocin (STZ)-induced diabetic rats via estimating lipid peroxidation, inflammatory and anti-oxidant status of brain. METHODS: Diabetes was induced in male Wistar rats by single i...
December 29, 2016: Journal of Diabetes
https://www.readbyqxmd.com/read/28011269/omega-3-fatty-acid-fish-oil-dietary-supplements-contain-saturated-fats-and-oxidized-lipids-that-may-interfere-with-their-intended-biological-benefits
#9
R Preston Mason, Samuel C R Sherratt
Widely available fish oil dietary supplements (DS) may contain fats and oxidized lipids in addition to the beneficial omega-3 fatty acids (OM3FAs) for which they are purchased. Little is known about the potential biological effects of these oxidized lipids. The objective of this study was to assess the fatty acid content, oxidation products, and biological effects of leading fish oil DS available in the United States. Three top-selling fish oil DS in the US were included in this analysis. Fatty acid composition was measured using gas chromatography...
December 21, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27988310/melaleuca-alternifolia-essential-oil-enhances-the-non-specific-immune-system-and-prevents-oxidative-damage-in-rhamdia-quelen-experimentally-infected-by-aeromonas-hydrophila-effects-on-cholinergic-and-purinergic-systems-in-liver-tissue
#10
Matheus D Baldissera, Carine F Souza, Guerino B Júnior, Agueda C de Vargas, Aline A Boligon, Marli M A de Campos, Lenita M Stefani, Bernardo Baldisserotto
The aim of this study was to evaluate the effects of M. alternifolia essential oil used to treat silver catfish (Rhamdia quelen) experimentally infected by Aeromonas hydrophila on oxidative stress variables, and for the first time, on hepatic enzymes of the cholinergic and adenosinergic systems. For that, fish were divided into six groups (A-F), each containing seven animals. Groups A, B and C were composed of uninfected animals, while animals in groups D, E and F were intramuscularly inoculated with A. hydrophila...
December 14, 2016: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/27979150/structural-functional-and-in-vitro-digestion-characteristics-of-spray-dried-fish-roe-powder-stabilised-with-gum-arabic
#11
P K Binsi, Nayak Natasha, P C Sarkar, P Muhamed Ashraf, Ninan George, C N Ravishankar
Fish roes are considered as nutritionally valuable for their high content of essential fatty acids and amino acids. However, roe lipids undergo considerable extent of oxidation during processing and storage, imparting objectionable bitter taste and rancid flavour to roe products. Hence, the objective of the study was to reconstitute the roe mass and microencapsulate lipid fraction, so that small oil droplets are entrapped within a dry matrix of roe proteins during spray drying. Prior to spray drying, the emulsion was stabilised with gum arabic as it also act as a co-wall polymer...
April 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27979124/application-of-cashew-tree-gum-on-the-production-and-stability-of-spray-dried-fish-oil
#12
Diego Alvarenga Botrel, Soraia Vilela Borges, Regiane Victória de Barros Fernandes, Rosemar Antoniassi, Adelia Ferreira de Faria-Machado, Judith Pessoa de Andrade Feitosa, Regina Celia Monteiro de Paula
Evaluation of cashew gum compared to conventional materials was conducted regarding properties and oxidative stability of spray-dried fish oil. Emulsions produced with cashew gum showed lower viscosity when compared to Arabic gum. The particle size was larger (29.9μm) when cashew gum was used, and the encapsulation efficiency reached 76%, similar to that of modified starch but higher than that for Arabic gum (60%). The oxidation process for the surface oil was conducted and a relative lower formation of oxidation compounds was observed for the cashew gum treatment...
April 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27936671/fabrication-of-concentrated-fish-oil-emulsions-using-dual-channel-microfluidization-impact-of-droplet-concentration-on-physical-properties-and-lipid-oxidation
#13
Fuguo Liu, Zhenbao Zhu, Cuicui Ma, Xiang Luo, Long Bai, Eric Andrew Decker, Yanxiang Gao, David Julian McClements
Chemically unstable lipophilic bioactives, such as polyunsaturated lipids, often have to be encapsulated in emulsion-based delivery systems before they can be incorporated into foods, supplements, and pharmaceuticals. The objective of this study was to develop highly concentrated emulsion-based fish oil delivery systems using natural emulsifiers. Fish oil-in-water emulsions were fabricated using a highly efficient dual-channel high-pressure microfluidizer. The impact of oil concentration on the formation, physical properties, and oxidative stability of fish oil emulsions prepared using two natural emulsifiers (quillaja saponins and rhamnolipids) and one synthetic emulsifier (Tween-80) was examined...
December 21, 2016: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/27923448/fit-with-good-fat-the-role-of-n-3-polyunsaturated-fatty-acids-on-exercise-performance
#14
REVIEW
Mariasole Da Boit, Angus M Hunter, Stuart R Gray
N-3 PUFA (n-3) polyunsaturated fatty acids (PUFA) are a family of fatty acids mainly found in oily fish and fish oil supplements. The effects of n-3 PUFA on health are mainly derived from its anti-inflammatory proprieties and its influence on immune function. Lately an increased interest in n-3 PUFA supplementation has reached the world of sport nutrition, where the majority of athletes rely on nutrition strategies to improve their training and performance. A vast amount of attention is paid in increasing metabolic capacity, delaying the onset of fatigue, and improving muscle hypertrophy and neuromuscular function...
January 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/27921401/effects-of-soybean-isoflavone-on-intestinal-antioxidant-capacity-and-cytokines-in-young-piglets-fed-oxidized-fish-oil
#15
Lin Huang, Xian-Yong Ma, Zong-Yong Jiang, You-Jun Hu, Chun-Tian Zheng, Xue-Fen Yang, Li Wang, Kai-Guo Gao
To investigate the effect of glycitein, a synthetic soybean isoflavone (ISF), on the intestinal antioxidant capacity, morphology, and cytokine content in young piglets fed oxidized fish oil, 72 4-d-old male piglets were assigned to three treatments. The control group was fed a basal diet containing fresh fish oil, and the other two groups received the same diet except for the substitution with the same dosage of oxidized fish oil alone or with ISF (oxidized fish oil plus ISF). After 21 d of feeding, supplementation of oxidized fish oil increased the levels of malondialdehyde (MDA), oxidized glutathione (GSSG), interleukin-1β (IL-1β), tumor necrosis factor-α (TNF-α), interleukin-2 (IL-2), nuclear factor κ B (NF-κB), inducible nitric oxide synthase (iNOS), NO, and Caspase-3 in jejunal mucosa, and decreased the villous height in duodenum and the levels of secretory immunoglobulin A (sIgA) and IL-4 in the jejunal mucosa compared with supplementation with fresh oil...
2016: Journal of Zhejiang University. Science. B
https://www.readbyqxmd.com/read/27921244/towards-green-oviposition-deterrents-effectiveness-of-syzygium-lanceolatum-myrtaceae-essential-oil-against-six-mosquito-vectors-and-impact-on-four-aquatic-biological-control-agents
#16
Giovanni Benelli, Mohan Rajeswary, Marimuthu Govindarajan
Essential oils (EOs) from plants may be alternative sources of molecules toxic against mosquito vectors of public health relevance. Most of researches in this field focused on EOs as larvicides or ovicides, while limited efforts focused on the exploitation of EOs as oviposition deterrents. In the present study, the larvicidal and oviposition deterrent activity of Syzygium lanceolatum leaf EO was evaluated against six mosquito species, Anopheles stephensi, An. subpictus, Aedes aegypti, Ae. albopictus, Culex quinquefasciatus, and Cx...
December 5, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27912119/tuning-of-shell-thickness-of-solid-lipid-particles-impacts-the-chemical-stability-of-encapsulated-%C3%AF-3-fish-oil
#17
Hanna Salminen, Thrandur Helgason, Bjarki Kristinsson, Kristberg Kristbergsson, Jochen Weiss
HYPOTHESIS: This study demonstrates that tuning the shell thickness of lipid particles can modulate their oxidative stability. We hypothesized that a thick crystallized shell around the incorporated fish oil would improve the oxidative stability due to the reduced diffusion of prooxidants and oxygen. EXPERIMENTS: We prepared solid lipid nanoparticles (5%w/w lipid phase, 1.5%w/w surfactant, pH 7) by using different ratios of tristearin as carrier lipid and ω-3 fish oil as incorporated liquid lipid stabilized by high- or low-melting lecithin...
November 19, 2016: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/27904853/effects-of-postoperative-parenteral-nutrition-with-different-lipid-emulsions-in-patients-undergoing-major-abdominal-surgery
#18
Seher Demirer, Ali Sapmaz, Ahmet Serdar Karaca, Ilknur Kepenekci, Semih Aydintug, Deniz Balci, Pinar Sonyurek, Kenan Kose
PURPOSE: This study was designed to investigate the effects of total parenteral nutrition (PN) using different lipid emulsions in patients undergoing major abdominal surgery. METHODS: Fifty-two patients were randomized to receive soybean oil + medium chain triglycerides (MCT) (group I), soybean oil + olive oil (group II), soybean oil + olive oil + fish oil (group III) as a lipid source. PN was started on postoperative day 1 and patients were maintained on PN for a minimum period of 4 days...
December 2016: Annals of Surgical Treatment and Research
https://www.readbyqxmd.com/read/27887733/determining-oxidative-stress-and-erod-activity-in-dab-limanda-limanda-in-the-north-and-baltic-seas
#19
Sturve Joachim, Hultman T Maria, Wassmur Britt, Carney Almroth Bethanie
The North and Baltic Seas are heavily trafficked marine areas with extensive anthropogenic activities, including cargo and fishing vessels, waste dumping, oil platforms, industrial activities and contamination from coastal runoff. In order to evaluate the environmental health of these regions, we used the demersal fish dab (Limanda limanda) as a sentinel species. The current study used well-established biomarkers for PAH exposure and oxidative stress, measuring EROD activity, the acute antioxidant response as well as oxidation of proteins detected as protein carbonyl levels...
March 2017: Marine Environmental Research
https://www.readbyqxmd.com/read/27886145/role-of-endogenous-and-exogenous-tocopherols-in-the-lipid-stability-of-marine-oil-systems-a-review
#20
REVIEW
Guadalupe Miroslava Suárez-Jiménez, Carmen María López-Saiz, Hugo Enrique Ramírez-Guerra, Josafat Marina Ezquerra-Brauer, Saul Ruiz-Cruz, Wilfrido Torres-Arreola
In marine organisms primarily intended for human consumption, the quality of the muscle and the extracted oils may be affected by lipid oxidation during storage, even at low temperatures. This has led to a search for alternatives to maintain quality. In this sense, antioxidant compounds have been used to prevent such lipid deterioration. Among the most used compounds are tocopherols, which, due to their natural origin, have become an excellent alternative to prevent or retard lipid oxidation and maintain the quality of marine products...
November 24, 2016: International Journal of Molecular Sciences
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