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https://www.readbyqxmd.com/read/28738595/compound-specific-%C3%AE-13-c-and-%C3%AE-2-h-analysis-of-olive-oil-fatty-acids
#1
Mauro Paolini, Luana Bontempo, Federica Camin
Fatty acids are the most abundant biomolecules in olive oil. In this study, we describe the analytical method developed to measure the δ(13)C, and for the first time, the δ(2)H values of fatty acid methyl esters (FAMEs) extracted from olive oil triglycerides, after base-catalysed transesterification with methanol. The extracted FAMEs are analysed using Gas Chromatography Combustion/Pyrolysis Isotope Ratio Mass Spectrometry (GC-C/Py-IRMS). The method made it possible to obtain baseline separation between the peaks of the main FAMEs (C16, C18, C18:1, C18:2)...
November 1, 2017: Talanta
https://www.readbyqxmd.com/read/28737673/magnetic-nanoemulsions-comparison-between-nanoemulsions-formed-by-ultrasonication-and-by-spontaneous-emulsification
#2
Nathalia Rodríguez-Burneo, Maria Antònia Busquets, Joan Estelrich
Nanoemulsions are particularly suitable as a platform in the development of delivery systems. The type of nanoemulsion with a higher stability will offer an advantage in the preparation of a delivery system for lipophilic drugs. Nanoemulsions can be fabricated by different processing methods, which are usually categorized as either high- or low-energy methods. In this study, a comparison between two methods of preparing magnetic oil-in-water (O/W) nanoemulsions is described. The nanoemulsions were formed by sonication (the high-energy method) or by spontaneous emulsification (the low-energy method)...
July 22, 2017: Nanomaterials
https://www.readbyqxmd.com/read/28737454/bioactivity-of-epigallocatechin-gallate-nanoemulsions-evaluated-in-mice-model
#3
Antonios E Koutelidakis, Konstantina Argyri, Zoi Sevastou, Dimitra Lamprinaki, Elli Panagopoulou, Evi Paximada, Aggeliki Sali, Vassilis Papalazarou, Athanasios Mallouchos, Vasiliki Evageliou, Vasiliki Kostourou, Ioanna Mantala, Maria Kapsokefalou
The hypothesis that incorporation of epigallocatechin gallate (EGCG) into nanoemulsions may increase its bioactivity compared with EGCG aqueous solutions was examined in mice. After an in vitro study in a model system with stimulated gastrointestinal conditions, the following EGCG nanoemulsions were used in a mice experiment: Emulsion I: emulsion water in oil (W/O), which contained 0.23 mg/mL EGCG in aqueous phase; Emulsion II: emulsion oil in water (O/W), which contained 10% olive oil and 0.23 mg/mL esterified EGCG in fatty phase; and Emulsion III: emulsion O/W in water (W1/O/W2; 8:32:60), which contained 32% olive oil and 0...
July 24, 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28736926/effects-of-testosterone-enanthate-treatment-in-conjunction-with-resistance-training-on-thyroid-hormones-and-lipid-profile-in-male-wistar-rats
#4
M Zarei, M Zaeemi, A Rashidlamir
This study was conducted to determine the effects of 8-week administration of testosterone enanthate (TE) in conjunction with resistance training on thyroid hormones and lipid profiles. Sixty male adult Wistar rats were randomly divided into six groups: C: olive oil, RT: resistance training + olive oil, LD: TE (20 mg/kg), HD: TE (50 mg/kg), RT + LD: RT + TE (20 mg/kg), RT + HD: RT + TE (50 mg/kg). The RT consisted of climbing (5 reps/3 sets) a ladder carrying a load suspended from the tail. At the end, blood specimens were obtained from the orbital sinus and serum concentration of T4, T3, TSH and lipid profiles was determined...
July 23, 2017: Andrologia
https://www.readbyqxmd.com/read/28732809/oleacein-may-inhibit-destabilization-of-carotid-plaques-from-hypertensive-patients-impact-on-high-mobility-group-protein-1
#5
Agnieszka Filipek, Monika E Czerwińska, Anna K Kiss, Jerzy A Polański, Marek Naruszewicz
BACKGROUND: In patients with hypertension the haemorrhage into carotid atherosclerotic plaque increases risk of plaque destabilization and rupture. Our previous study showed that oleacein, a secoiridoid present in extra virgin olive oil, enhanced uptake of haemoglobin-haptoglobin complex and change macrophage phenotype from pro-inflammatory M1 to anti-inflammatory M2. PURPOSE: The aim this study was to investigate a potential role of oleacein in attenuation of carotid plaque destabilisation ex vivo...
August 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28732723/lipolytic-bacteria-use-as-bio-decontaminating-natural-in-the-water-purification-stations
#6
REVIEW
Lalia Hachemi, Zouaoui Benattouche, Mohammed Elnedhir Belgherras
Different samples were collected from polluted waters by fat materials in the Mascara region for the isolation of bacterial strains capable of degrading fat materials and used in the production of lipase by the fermentation method. A total of two strains (Pseudemonas sp et Streptococcus sp) were isolated at 37°C from the sample water rich slaughterhouses fat materials. Production of extracellular bacterial lipase was studied as a function of several inductors of lipid nature by the fermentation method. The enzyme activity reached a maximum value, in the presence of olive oil as inducer...
July 18, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28732092/dietary-oleic-acid-regulates-hepatic-lipogenesis-through-a-liver-x-receptor-dependent-signaling
#7
Simon Ducheix, Alexandra Montagner, Arnaud Polizzi, Frédéric Lasserre, Marion Régnier, Alice Marmugi, Fadila Benhamed, Justine Bertrand-Michel, Laila Mselli-Lakhal, Nicolas Loiseau, Pascal G Martin, Jean-Marc Lobaccaro, Laurent Ferrier, Catherine Postic, Hervé Guillou
Olive oil consumption is beneficial for health as it is associated with a decreased prevalence of cancer and cardiovascular diseases. Oleic acid is, by far, the most abundant component of olive oil. Since it can be made through de novo synthesis in animals, it is not an essential fatty acid. While it has become clear that dietary oleic acid regulates many biological processes, the signaling pathway involved in these regulations remains poorly defined. In this work we tested the impact of an oleic acid-rich diet on hepatic gene expression...
2017: PloS One
https://www.readbyqxmd.com/read/28731641/macronutrient-content-and-food-exchanges-for-48-greek-mediterranean-dishes
#8
Paraskevi Detopoulou, Maria Aggeli, Elena Andrioti, Maria Detopoulou
AIM: The purpose of the present study was to facilitate the translation of traditional Greek Mediterranean recipes into food exchanges for diabetes. Moreover, it provides a useful food list for meal planning, which can be used by health professionals and nutritionists, as well as researchers and the public. METHODS: A total of 48 traditional Greek Mediterranean dishes were selected in order to include appetisers, sauces, salads, pies, dishes with vegetables and legumes as well as egg, pasta, rice, meat, fish and poultry-based dishes...
April 2017: Nutrition & Dietetics: the Journal of the Dietitians Association of Australia
https://www.readbyqxmd.com/read/28731131/assessment-of-the-antioxidant-activity-of-an-olive-oil-total-polyphenolic-fraction-and-hydroxytyrosol-from-a-greek-olea%C3%A2-europea-variety-in-endothelial-cells-and-myoblasts
#9
Paraskevi Kouka, Alexandros Priftis, Dimitrios Stagos, Apostolis Angelis, Panagiotis Stathopoulos, Nikos Xinos, Alexios-Léandros Skaltsounis, Charalampos Mamoulakis, Aristides M Tsatsakis, Demetrios A Spandidos, Demetrios Kouretas
Olive oil (OO) constitutes the basis of the Mediterranean diet, and it seems that its biophenols, such as hydroxytyrosol (HT) may scavenge free radicals, attracting distinct attention due to their beneficial effects in many pathological conditions, such as cancer. To the best of our knowedge, this is the first study in which the functional properties of an OO total polyphenolic fraction (TPF) and pure HT were examined in order to determine their antioxidant effects at a cellular level in endothelial cells and myoblasts...
July 20, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28728005/thermal-destruction-of-organic-waste-hydrophobicity-for-agricultural-soils-application
#10
Francisco Comino, Víctor Aranda, Ana Domínguez-Vidal, María José Ayora-Cañada
Use of organic amendments is a good strategy for combating the growing problem of soil degradation due to deterioration of organic matter content, particularly severe in semi-arid European Mediterranean regions, while at the same time providing an opportunity for recycling organic wastes. Olive mill pomace (OMP), the main by-product of the olive oil industry, is being used increasingly in olive grove soils for this purpose. Although the positive effects of OMP amendments have been widely studied, they also have some negative effects on soil...
July 17, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28727906/potential-of-telmisartan-in-the-treatment-of-benign-prostatic-hyperplasia
#11
Ismail Ogunbayode Ishola, Charles C Anunobi, Kehinde Habeeb Tijani, Olasunmbo Afolayan, Victoria U Udokwu
Benign prostatic hyperplasia (BPH) is a common health problem in aging men. This study was carried out to investigate the protective effect of telmisartan on testosterone induced-BPH in rats. Fifty-four male Wistar rats (200 - 250g) were randomly divided into 9 groups (n =6) and orally treated for 28 consecutive days: group 1- vehicle normal, olive oil (10 ml/kg); group 2- BPH model control (10 ml/kg); groups 3-5 - telmisartan (5, 10 or 20 mg/kg, respectively); group 6- pioglitazone (20 mg/kg); group 7- celecoxib (20 mg/kg); group 8- combination of telmisartan (5 mg/kg) and pioglitazone (20 mg/kg); group 9- combination of telmisartan (5 mg/kg) and celecoxib (20 mg/kg)...
July 20, 2017: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/28725915/ikk%C3%AE-inhibition-prevents-fat-induced-beta-cell-dysfunction-in-vitro-and-in-vivo-in-rodents
#12
Aleksandar Ivovic, Andrei I Oprescu, Khajag Koulajian, Yusaku Mori, Judith A Eversley, Liling Zhang, Rodolfo Nino-Fong, Gary F Lewis, Marc Y Donath, Michael Karin, Michael B Wheeler, Jan Ehses, Allen Volchuk, Catherine B Chan, Adria Giacca
AIMS/HYPOTHESIS: We have previously shown that oxidative stress plays a causal role in beta cell dysfunction induced by fat. Here, we address whether the proinflammatory kinase inhibitor of (nuclear factor) κB kinase β (IKKβ), which is activated by oxidative stress, is also implicated. METHODS: Fat (oleate or olive oil) was infused intravenously in Wistar rats for 48 h with or without the IKKβ inhibitor salicylate. Thereafter, beta cell function was evaluated in vivo using hyperglycaemic clamps or ex vivo in islets isolated from fat-treated rats...
July 20, 2017: Diabetologia
https://www.readbyqxmd.com/read/28725142/rhanterium-epapposum-oliv-essential-oil-chemical-composition-and-antimicrobial-insect-repellent-and-anticholinesterase-activities
#13
Betul Demirci, Hasan Soliman Yusufoglu, Nurhayat Tabanca, Halide Edip Temel, Ulrich R Bernier, Natasha M Agramonte, Saleh Ibrahim Alqasoumi, Adnan Jathlan Al-Rehaily, Kemal Husnu Can Başer, Fatih Demirci
The essential oil (EO) of the aerial parts of Rhanterium epapposum Oliv. (Asteraceae), was obtained by hydrodistillation. The oil was subsequently analyzed by both GC-FID and GC-MS, simultaneously. Forty-five components representing 99.2% of the oil composition were identified. The most abundant compounds were camphene (38.5%), myrcene (17.5%), limonene (10.1%) and α-pinene (8.7%). Referring to the ethnobotanical utilization, an insecticidal assay was performed, where the oil repelled the yellow fever mosquito Aedes aegypti L...
July 2017: Saudi Pharmaceutical Journal: SPJ: the Official Publication of the Saudi Pharmaceutical Society
https://www.readbyqxmd.com/read/28721993/honey-and-olive-oil-as-bio-friendly-substitutes-for-formalin-and-xylene-in-routine-histopathology
#14
Keerthi Muddana, Jaya Nagendra Krishna Muppala, Shyam Prasad Reddy Dorankula, Aruna Kumari Maloth, Pavan G Kulkarni, Deepsagar Thadudari
BACKGROUND: Formalin has long been the standard fixative and xylene has been the clearing agent for routine histopathology and immunohistochemistry worldwide. In recent years, as a result of increasing concerns about the potential carcinogenicity of formaldehyde and xylene, attempts have been made to find safer alternatives. In the present study, we considered honey as better alternative for formalin and olive oil as safer substitute for xylene. AIMS: The aim of this study was to know whether honey could be a possible substitute for formalin and olive oil could be a possible substitute for xylene...
May 2017: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/28720974/effect-of-electric-field-on-the-characteristics-of-crude-avocado-oil-and-virgin-olive
#15
José Alberto Ariza-Ortega, Nelly Del Socorro Cruz-Cansino, Esther Ramírez-Moreno, María Elena Ramos-Cassellis, Dolores Castañeda-Antonio, Gabriel Betanzos-Cabrera
The objective of this study was to analyze the effect of an electric field treatment (voltage 9 kV cm(-1), frequency 720 Hz and time of 5 and 25 min) as method of preservation on two edible oils. Unsaturated fatty acid oxidation in the crude avocado oil and virgin olive oil was analyzed by Fourier transform infrared spectroscopy in the mid infrared region and by quality parameters (acidity, peroxide and iodine). The electric field is a suitable method to preserve the crude oils composition with minimal modifications without the synthetic antioxidant addition...
June 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28720935/technological-options-to-control-quality-of-fish-burgers
#16
A Danza, A Conte, M A Del Nobile
This research was focused on preservation strategies applied to develop fish burgers enriched with tomato flour and extra-virgin olive oil. The effects of three different gas mixtures (5:95 O2/CO2; 10:60:30 O2/CO2/N2 and 5:50:45 O2/CO2/N2) on burger quality were analyzed by monitoring microbial cell load of main spoilage microorganisms, pH and sensory properties. As expected, modified atmosphere packaging significantly affected mesophilic bacteria with a reduction of about 2 log cycles for samples under 5% O2 and 95% CO2...
June 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28720221/evaluation-of-nanoflow-liquid-chromatography-high-resolution-mass-spectrometry-for-pesticide-residue-analysis-in-food
#17
David Moreno-González, Patricia Pérez-Ortega, Bienvenida Gilbert-López, Antonio Molina-Díaz, Juan F García-Reyes, Amadeo R Fernández-Alba
This article reports on the evaluation of nanoflow liquid chromatography-mass spectrometry (LC-MS) for pesticide residue analysis in food. The approach is based on the use of reversed-phase C18nano columns with an integrated emitter, so that separation, ionization and detection are performed minimizing dead volumes. The use of nanoflow not only increases ionization efficiency and minimizes ionization suppression but also boost sensitivity compared to analytical-scale LC-MS methods. The nanoflow LC system was combined with full-scan high resolution mass spectrometry using a Q-Exactive Orbitrap instrument...
July 8, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28712532/influence-of-different-intravenous-lipid-emulsions-on-growth-development-and-laboratory-and-clinical-outcomes-in-hospitalised-paediatric-patients-a-systematic-review
#18
REVIEW
Roy-Rosshan Edward, Jacqueline K Innes, Luise V Marino, Philip C Calder
BACKGROUND & AIMS: Fats in the form of lipid emulsions (LEs) are an integral part of intravenous nutrition. The fatty acid composition of different LEs varies. The exact composition of a LE may influence cell and tissue function and clinical outcome. Currently, it is not clear which LE might be best for paediatric patients. We conducted a systematic review of the effects of different intravenous LEs in hospitalised paediatric patients. METHODS: Randomised controlled trials published in a peer reviewed journal, written in the English language, and comparing two or more different intravenous LEs in hospitalised paediatric patients were included...
July 8, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28712181/comparison-of-lipid-lowering-effect-of-extra-virgin-olive-oil-and-atorvastatin-in-dyslipidaemia-in-type-2-diabetes-mellitus
#19
Tariq Mahmood Khan, Sohail Iqbal, Muhammad Adnan Rashid
BACKGROUND: Extra virgin olive oil (EVOO) is fruit oil with rich source of monounsaturated fats and powerful antioxidants. It acts as hypolipidemic agent and significant decrease of plasma lipids level was observed with EVOO use. Atorvastatin is hypolipidemic drug commonly used for treatment of hyperlipidaemia. The purpose of this study was to determine & compare the lipid lowering effect of EVOO with atorvastatin in type 2 diabetic dyslipidaemia which is leading cause of microvascular diseases...
January 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/28711992/oleuropein-and-hydroxytyrosol-inhibit-the-n-formyl-methionyl-leucyl-phenylalanine-induced-neutrophil-degranulation-and-chemotaxis-via-akt-p38-and-erk1-2-map-kinase-inhibition
#20
Samia Bedouhene, Farida Moulti-Mati, Pham My-Chan Dang, Jamel El-Benna
PURPOSE: Oleuropein and hydroxytyrosol are polyphenols that are extracted from olives and are major biological active components of olives and olive oil. Oleuropein and hydroxytyrosol exhibit interesting pharmacological effects on cells, and have been shown to have many health benefits such as anti-inflammatory effects. These effects were mainly attributed to their ability to scavenge the reactive oxygen species (ROS) produced by phagocytes such as neutrophils. The aim of this study was to investigate the effect of oleuropein and hydroxytyrosol on other neutrophil functions...
July 15, 2017: Inflammopharmacology
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