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linoleic acid

Tufail Ahmed Wagan, Wanlun Cai, Hongxia Hua
We examined the repellent, insecticidal, and anti-oviposition activities of the ethanol-extracted essential oil of Gardenia jasminoides against Bemisia tabaci and Tetranychus urticae adult and nymph stages under laboratory and greenhouse conditions. We used GC-MS to identify the main chemicals in the essential oil and selected four compounds, squalene, ethyl linoleate, n-hexadecanoic acid and 9-12-octadecadienoic, to evaluate their activity on whiteflies and mites. In the laboratory experiments, the essential oil of G...
June 20, 2018: Scientific Reports
Felipe Azevedo Ribeiro, Katherine Ivette Domenech-Pérez, Carmen Josefina Contreras-Castillo, Emery Karoline Wilkerson, Hope Reneé Voegele, Kellen Ballard Hart, Nicolas Jens Herrera, Chris Richard Calkins
The effects of feeding different dietary fat sources with modified distillers grains plus solubles (MDGS) on beef display life were evaluated. Steers (n = 256) were fed for 134 d on either a corn, 40% full-fat MDGS, 40% de-oiled MDGS, or 38% de-oiled MDGS plus 2% corn oil diet. Twenty-four United States Department of Agriculture Choice carcasses (3 head/pen) were randomly selected within each dietary treatment and strip loins were collected and aged for 2, 9, 16, or 23 d. Steaks from each aging period were placed under retail display (RD) conditions for 0, 4, and 7 d...
June 19, 2018: Journal of Animal Science
Jean Mboma, Nadine Leblanc, Paul Angers, Amandine Rocher, Claire Vigor, Camille Oger, Guillaume Reversat, Joseph Vercauteren, Jean-Marie Galano, Thierry Durand, Helene Jacques
This study assesses the effects of cyclic fatty acid monomers (CFAM) from heated vegetable oils on oxidative stress and inflammation. Wistar rats were fed either of the four diets for 28 days: canola oil (CO), canola oil and 0.5% CFAM (CC), soybean oil (SO), and soybean oil and 0.5% CFAM (SC). Markers of oxidative stress and inflammation were respectively determined by micro-LC-MS/MS and ELISA kits. ANOVA for a 2 x 2 factorial design was performed to determine the CFAM and oil effects and interactions between these two factors at P≦0...
June 19, 2018: Journal of Agricultural and Food Chemistry
Daniel Stoessel, Jan-Patrick Stellmann, Anne Willing, Birte Behrens, Sina C Rosenkranz, Sibylle C Hodecker, Klarissa H Stürner, Stefanie Reinhardt, Sabine Fleischer, Christian Deuschle, Walter Maetzler, Daniela Berg, Christoph Heesen, Dirk Walther, Nicolas Schauer, Manuel A Friese, Ole Pless
Primary progressive multiple sclerosis (PPMS) shows a highly variable disease progression with poor prognosis and a characteristic accumulation of disabilities in patients. These hallmarks of PPMS make it difficult to diagnose and currently impossible to efficiently treat. This study aimed to identify plasma metabolite profiles that allow diagnosis of PPMS and its differentiation from the relapsing-remitting subtype (RRMS), primary neurodegenerative disease (Parkinson's disease, PD), and healthy controls (HCs) and that significantly change during the disease course and could serve as surrogate markers of multiple sclerosis (MS)-associated neurodegeneration over time...
2018: Frontiers in Human Neuroscience
Sylwia Osowska, Marek Kunecki, Jacek Sobocki, Joanna Tokarczyk, Krystyna Majewska, Mohamed Omidi, Marek Radkowski, Helena L Fisk, Philip C Calder
BACKGROUND: The effect of different lipid emulsions (LEs) within the parenteral nutrition (PN) regimen of adult home PN (HPN) patients is not clear. This study investigated the effect of changing adult HPN patients from a soybean oil based LE (Intralipid) to either a fish oil containing LE (providing n-3 fatty acids) (SMOFLipid) or an olive oil based LE (ClinOleic). METHODS: Thirty two adults receiving long-term HPN with Intralipid as the LE were transferred to receive either SMOFLipid (n = 13) or ClinOleic (n = 19) for 60 days...
June 6, 2018: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
Worrapan Poomanee, Wantida Chaiyana, Monika Mueller, Helmut Viernstein, Watcharee Khunkitti, Pimporn Leelapornpisid
Propionibacterium acnes has been recognized as a main target for medical treatment of acne since this bacterium promotes acne inflammation by inducing upregulation of pro-inflammatory cytokines production, resulting in an accumulation of neutrophils and oxygen-free radicals produced by neutrophils within acne lesion. The aims of this study were to evaluate the biological activities of Mangifera indica kernel extracts grown in Northern Thailand (Kaew-Moragot cultivar), related to anti-acne properties including antimicrobial effect against acne-inducing bacteria together with the first elucidation of the mechanism of action against Propionibacterium acnes, anti-oxidation, and anti-inflammation...
May 17, 2018: Anaerobe
Bernardo Valenti, Giuseppe Luciano, Mariano Pauselli, Simona Mattioli, Luisa Biondi, Alessandro Priolo, Antonio Natalello, Luciano Morbidini, Massimiliano Lanza
The effect of dried tomato pomace (DTP) was tested on lamb performances, meat fatty acids and oxidative stability. For 36 days, one group of lambs (n = 7; CON) was fed a commercial concentrate, while the other group (n = 7; DTP) received DTP in addition to CON diet. The administration of DTP reduced (P < .05) concentrate intake, with no effect on animal performances. The DTP treatment tended to increase total polyunsaturated fatty acids (PUFA; P = .075), PUFA n-6 (P = .071), α-linolenic acid (P = ...
June 9, 2018: Meat Science
Aditi Mukherjee, Ayan Adhikari, Priya Das, Saroj Biswas, Supratim Mukherjee, Subrata Adak
Leishmania promastigotes have the ability to synthesize essential polyunsaturated fatty acids de novo and can grow in lipid free media. Recently, we have shown that NAD(P)H cytochrome b5 oxidoreductase (Ncb5or) enzyme in Leishmania acts as the redox partner for Δ12 fatty acid desaturase, which catalyses the conversion of oleate to linoleate. So far, the exact role of Leishmania derived linoleate synthesis is still incomplete in the literature. The viability assay by flow cytometry as well as microscopic studies suggests that linoleate is an absolute requirement for Leishmania promastigote survival in delipidated media...
June 12, 2018: Biochemical and Biophysical Research Communications
Fan Yang, Juan Wu, Ying Zheng
OBJECTIVE: To analyze the fatty acids in human milk, bovine milk and powdered formulas with the change of lactation period and suitable object. METHODS: A total of 50 human milk samples of healthy maternal, 35 Holstein milk samples and 30 formula samples were selected. The fatty acids in different samples were tested by gas chromatography. RESULTS: 28 fatty acids were detected in powdered formulas, 30 fatty acids were detected in bovine milk and 27 fatty acids were detected in human milk...
July 2017: Wei Sheng Yan Jiu, Journal of Hygiene Research
Mohsen Hanana, Hajer Mezghenni, Rayda Ben Ayed, Ali Ben Dhiab, Slim Jarradi, Bassem Jamoussi, Lamia Hamrouni
BACKGROUND: Argan oil is traditionally produced by cold pressing in South-western Morocco where rural population uses it as edible oil as well as for its therapeutic properties which give them in counterpart valuable income. Given the economical interest of this oil, several attempts of fraudulency have been registered in the world global market leading to loss of authenticity. Our purpose is to launch a program of Tunisian Argan oil valorization since trees from this species have been introduced sixty years ago in Tunisia...
June 15, 2018: Lipids in Health and Disease
Lu-Chen Weng, Weihua Guan, Lyn M Steffen, James S Pankow, Nathan Pankratz, Ming-Huei Chen, Mary Cushman, Saonli Basu, Aaron R Folsom, Weihong Tang
INTRODUCTION: Data from epidemiological studies and clinical trials suggest an influence of dietary and circulating polyunsaturated fatty acids (PUFAs) on the hemostasis profile. Genome-wide association studies (GWAS) have identified single nucleotide polymorphisms (SNPs) related to plasma PUFAs levels. We aimed to investigate whether the SNPs related to plasma PUFAs levels were also associated with plasma levels of hemostatic variables. MATERIALS AND METHODS: We tested the associations between 9 PUFA-related SNPs and 6 hemostatic variables in 9035 European Americans (EAs) and 2702 African Americans (AAs) in the Atherosclerosis Risk in Communities (ARIC) Study...
June 1, 2018: Thrombosis Research
Julia Carolina Athanázio-Heliodoro, Clarissa Hamaio Okino-Delgado, Célio Júnior da Costa Fernandes, Mirella Rossitto Zanutto, Débora Zanoni do Prado, Rodrigo Augusto da Silva, Roselaine Facanali, Willian Fernando Zambuzzi, Márcia Ortiz Mayo Marques, Luciana Francisco Fleuri
Lipases are an economic important group of biocatalysts that can be produced by some fungal under solid-state fermentation. Orange wastes are source of lipases and potential substrates for lipases production. This work assessed 19 fugal strains cultivated in Citrus sinensis cv. Hamlin orange wastes (peel, frit and core) for production of lipases in order to generate compounds with antioxidant, antimicrobial and cytotoxic properties. Fifteen of those fungi grew and produced lipases, mainly the Aspergillus brasiliensis [National Institute of Quality Control (INCQS) 40036]/frit system, which showed 99...
June 14, 2018: Preparative Biochemistry & Biotechnology
Maria Konieczna, Martin Olzog, Daniela J Naether, Łukasz Chrzanowski, Hermann J Heipieper
The marine hydrocarbonoclastic bacterium Alcanivorax borkumensis is well known for its ability to successfully degrade various mixtures of n -alkanes occurring in marine oil spills. For effective growth on these compounds, the bacteria possess the unique capability not only to incorporate but also to modify fatty intermediates derived from the alkane degradation pathway. High efficiency of both these processes provides better competitiveness for a single bacteria species among hydrocarbon degraders. To examine the efficiency of A...
June 13, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Huiling Zhang, Wenchao Du, Jose R Peralta-Videa, Jorge L Gardea-Torresdey, Jason C White, Arturo A Keller, Hongyan Guo, Rong Ji, Lijuan Zhao
Due to their well-known antifungal activity, the intentional use of Ag nanoparticle (NPs) as sustainable nano-fungicides is expected to increase in agriculture. However, the impacts of AgNPs on plants must be critically evaluated to guarantee their safe use in food production. In this study, 4-week-old cucumber (Cucumis sativus) plants received a foliar application of AgNPs (4 or 40 mg per plant) or Ag+ (0.04 or 0.4 mg per plant) for seven days. Gas chromatography-mass spectrometry (GC-MS) based non-target metabolomics enabled the identification and quantification of 268 metabolites in cucumber leaves...
June 14, 2018: Environmental Science & Technology
Jun Zhou, Lili Tang, Jincheng Wang, Jia-Sheng Wang
In this study, male F344 rats were orally exposed to aflatoxin B1 (AFB1) at 0, 5, 25, and 75 μg/kg for four weeks. Rat feces were collected from 2-4 weeks following exposure and were assessed for gut-microbiota dependent metabolites. Gut-microbiota related organic acids were quantitated in the feces using 2-nitrophenylhydrazine derivatization coupled HPLC-profiling method which was validated and showed good reliability, accuracy and sensitivity. After 2-week exposure, AFB1 significantly reduced the levels of fecal short chain fatty acids (SCFAs) with an over 70% reduction in the high-dose group (75 μg/kg)...
April 20, 2018: Toxicological Sciences: An Official Journal of the Society of Toxicology
Xiongming Du, Shouye Liu, Junling Sun, Gengyun Zhang, Yinhua Jia, Zhaoe Pan, Haitao Xiang, Shoupu He, Qiuju Xia, Songhua Xiao, Weijun Shi, Zhiwu Quan, Jianguang Liu, Jun Ma, Baoyin Pang, Liru Wang, Gaofei Sun, Wenfang Gong, Johnie N Jenkins, Xiangyang Lou, Jun Zhu, Haiming Xu
BACKGROUND: Cottonseed is one of the most important raw materials for plant protein, oil and alternative biofuel for diesel engines. Understanding the complex genetic basis of cottonseed traits is requisite for achieving efficient genetic improvement of the traits. However, it is not yet clear about their genetic architecture in genomic level. GWAS has been an effective way to explore genetic basis of quantitative traits in human and many crops. This study aims to dissect genetic mechanism seven cottonseed traits by a GWAS for genetic improvement...
June 13, 2018: BMC Genomics
Justyna Grabska, Krzysztof B Bec, Mika Ishigaki, Christian W Huck, Yukihiro Ozaki
Spectra simulation based on quantum mechanical calculations is often an ultimate tool bringing decisive answers on spectroscopic problems but in the case of NIR spectroscopy such studies still remain very rare, particularly those on rather complicated molecules. In the present work we have employed fully anharmonic spectra simulation for saturated and unsaturated long-chain fatty acids (arachidic acid, palmitic acid, stearic acid, linoleic acid, linolenic acid and oleic acid). The spectral features corresponding to the saturation of fatty acid was accurately reproduced by deperturbed vibrational second-order perturbation theory (DVPT2) throughout a wide NIR region (8000-4000 cm-1 ) which contains mostly combination bands, and detailed band assignments have been provided...
June 12, 2018: Journal of Physical Chemistry. B
Chryssostomos Chatgilialoglu, Vincent William Bowry
Reversible addition of thiyl radicals to cis fatty acids converts them into trans fatty acids, LZ + S• ⇄ SL• ⇄ LE + S•, in a cycle that, uninterrupted, would rapidly isomerize lipids exposed to radicals and thiols. One reason this does not happen in foods and organisms is because the cycle is interrupted - by exothermic allylic abstraction, L + S• → L• + SH. Auto-inhibition limits the cis-trans cycle length to around 400-500 (LE per S•) in a MUFA model (methyl oleate) and just ~13-15 in PUFA lipid model (methyl linoleate)...
June 12, 2018: Journal of Organic Chemistry
Murat Reis Akkaya
This study was performed in order to evaluate efficiency of near-infrared reflectance spectroscopy (NIRS) for the determination of fatty acid composition ratio of sunflower seeds and to compare performance of calibration methods. Calibration equations were developed using modified partial least squares (MPLS) and partial least squares (PLS) regression methods. Ninety-three sunflower seed varieties were from test field of East Mediterranean Agricultural Research Institute. In order to determine the reference fatty acid values needed to construct calibration in NIRS analysis, sunflower seed samples were analyzed by gas chromatography method...
June 2018: Journal of Food Science and Technology
Ali Akbar Mozafari, Yavar Vafaee, Mohammad Shahyad
The effect of five drying methods including shade drying (SHD), solar drying (SOD), and oven drying at 30 (OD30), 40 (OD40) and 50 °C (OD50) on the phytochemical composition and antioxidant potential of C. dactylon leaf and rhizome was assessed. Among drying methods, OD50 resulted in the shortest drying time (18.3 and 12 h for rhizome and leaf, respectively), when compared with SHD and SOD. Based on GC-MS analyses, 15 and 17 constituents were identified in leaf and rhizome extracts, respectively, accounting for ~ 99% of all components...
June 2018: Journal of Food Science and Technology
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