12,552 results match your criteria olive oil


Supplementation with oil rich in eicosapentaenoic acid, but not in docosahexaenoic acid, improves global cognitive function in healthy, young adults: results from randomized controlled trials.

Am J Clin Nutr 2021 Jun 10. Epub 2021 Jun 10.

Brain Performance and Nutrition Research Centre, Northumbria University, Newcastle Upon Tyne, United Kingdom.

Background: Evidence regarding the effects of the omega-3 (ɷ-3) PUFAs (n-3 PUFAs) DHA and EPA on cognition is lacking.

Objectives: We investigated whether supplementation with oils rich in EPA or DHA improves cognition, prefrontal cortex (PFC) hemoglobin (Hb) oxygenation, and memory consolidation.

Methods: Healthy adults (n = 310; age range: 25-49 y) completed a 26-wk randomized controlled trial in which they consumed either 900 mg DHA/d and 270 mg EPA/d (DHA-rich oil), 360 mg DHA/d and 900 mg EPA/d (EPA-rich oil), or 3000 mg/d refined olive oil (placebo). Read More

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Diet Rich in Lard Promotes a Metabolic Environment Favorable to Growth.

Front Cardiovasc Med 2021 25;8:667580. Epub 2021 May 25.

Laboratory of Immunobiology of Inflammation, Department of Biological Sciences, Federal University of Ouro Preto, Ouro Preto, Brazil.

is a protozoan parasite that causes Chagas disease and affects 6-7 million people mainly in Latin America and worldwide. Here, we investigated the effects of hyperlipidic diets, mainly composed of olive oil or lard on experimental infection. C57BL/6 mice were fed two different dietary types in which the main sources of fatty acids were either monounsaturated (olive oil diet) or saturated (lard diet). Read More

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Co-encapsulation of L-ascorbic acid and quercetin by gelatin/sodium carboxymethyl cellulose coacervates using different interlayer oils.

Food Res Int 2021 Jul 12;145:110411. Epub 2021 May 12.

Department of Food Science, Rutgers University, New Brunswick, NJ 08901, USA. Electronic address:

A two-step emulsification prior to complex coacervation was employed to develop a co-encapsulation technology of hydrophilic and hydrophobic components for nutrition enhancement. Processing parameters of mononuclear ellipse-like microcapsules using gelatin and sodium carboxymethyl cellulose as wall materials were evaluated. The particle size and morphology of microcapsules and the encapsulation efficiency of L-ascorbic acid were significantly affected by the water-oil phase ratio and total biopolymer concentration. Read More

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Spirulina liquid extract prevents metabolic disturbances and improves liver sphingolipids profile in hamster fed a high-fat diet.

Eur J Nutr 2021 Jun 10. Epub 2021 Jun 10.

INRAe UMR1280 PhAN, Physiopathology of Nutritional Adaptations, CHU Hôtel Dieu, IMAD, CRNH Ouest, University of Nantes, 1, Place Alexis Ricordeau, 44093, Nantes Cedex 01, France.

Purpose: Metabolic syndrome is characterized by hyperglycemia, hyperlipemia and exacerbated oxidative stress. The aim of the study was to determine whether Spirulysat, a Spirulina liquid extract (SLE) enriched in phycocyanin, would prevent metabolic abnormalities induced by high-fat diet.

Methods: The effect of acute SLE supplementation on postprandial lipemia and on triton-induced hyperlipidemia was studied in hamster fed control diet (C). Read More

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Ethyl Acetate Fraction of Dicliptera chinensis (L.) Juss. Ameliorates Liver Fibrosis by Inducing Autophagy via PI3K/AKT/mTOR/p70S6K Signaling Pathway.

Chin J Integr Med 2021 Jun 8. Epub 2021 Jun 8.

School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China.

Objective: To investigate the molecular mechanism underlying the anti-hepatic fibrosis activity of ethyl acetate fraction Dicliptera chinensis (L.) Juss. (EDC) in human hepatic stellate cells (HSCs) in vitro and in a carbon tetrachloride (CCl)-induced hepatic fibrosis mouse model in vivo. Read More

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Effects of olives and their constituents on the expression of ulcerative colitis: a systematic review of randomized controlled trials.

Br J Nutr 2021 Jun 8:1-53. Epub 2021 Jun 8.

Sydney School of Health Sciences, Faculty of Medicine and Health, The University of Sydney, Lidcombe, NSW 2141, Australia.

Extra virgin olive oil (EVOO) is often associated with anti-inflammatory and antioxidant properties. Its effects on inflammatory conditions such as Ulcerative Colitis (UC) however has yet to be defined. As such, we aimed to conduct a systematic review and meta-analysis of studies investigating olive-based interventions in UC. Read More

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Life cycle assessment, C footprint and carbon balance of virgin olive oils production from traditional and intensive olive groves in southern Spain.

J Environ Manage 2021 Jun 4;293:112951. Epub 2021 Jun 4.

Department of Electrical Engineering, Escuela Politécnica Superior, University of Jaén, 23700, Linares, Spain. Electronic address:

Olive oil production shapes the socio-economic and environmental life of many areas of the Mediterranean basin, especially southern Spain, the highest olive oil-producing region worldwide. Olive grove cultivation is tending to intensify from traditional low-density to intensive and high-density cropping systems, which might result in higher environmental impacts. The aim of this study is to estimate the environmental impacts, carbon (C) footprint and carbon balance of producing virgin origin olive oil in Spain from four traditional rainfed, four irrigated, and three intensive olive farms, including the processing phase. Read More

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A Novel Technique for Redox Lipidomics Using Mass Spectrometry: Application on Vegetable Oils Used to Fry Potatoes.

J Am Soc Mass Spectrom 2021 Jun 7. Epub 2021 Jun 7.

School of Nutrition, Kinesiology and Psychological Science, University of Central Missouri, Warrensburg, Missouri 64093, United States.

Vegetables oils, rich in polyunsaturated fatty acids, are vulnerable to oxidation during manufacturing, processing, and food preparation. Currently, individual oxidation products are not well characterized, and hence, the health impacts of these unique lipid species remain unknown. Here, we introduce an extensive oxidized lipidomics tandem mass spectrometry library and integrate these libraries within a user-friendly software covering a comprehensive redox lipidomics workflow. Read More

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New vacuum cooking techniques with extra-virgin olive oil show a better phytochemical profile than traditional cooking methods: A foodomics study.

Food Chem 2021 May 26;362:130194. Epub 2021 May 26.

Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Via Emilia Parmense 84, Piacenza 29122, Italy. Electronic address:

In this work, the major changes in extra-virgin olive oil (EVOO) composition during cooking were assessed. A foodomics approach based on both metabolomics and lipidomics was used to evaluate the impact of six different cooking techniques, three traditional and three more innovative (Crock-pot®, Roner® and Gastrovac®), and the effect of temperature and cooking time. The lipophilic and hydrophilic fractions of EVOO that underwent different cooking processes were characterized by untargeted high-resolution mass spectrometry approaches. Read More

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Olive oil-based lipid emulsion is noninferior to soybean oil-based lipid emulsion in the acute care setting: A double-blind randomized controlled trial.

Nutrition 2021 Apr 18;89:111283. Epub 2021 Apr 18.

Toronto General Hospital, University of Toronto, Toronto, Canada. Electronic address:

Objectives: Olive oil (OO)-based intravenous lipid emulsion (IVLE) may have biological advantages for nutrition and inflammation status compared with soybean oil (SO)-based IVLE. We aimed to compare prealbumin levels during infusion of OO- or SO-based IVLE in patients receiving parenteral nutrition in the acute-care setting.

Methods: In this prospective, noninferiority, double blind randomized controlled efficacy trial, patients received either OO-based or SO-based IVLE after providing consent. Read More

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Protein suppresses both bitterness and oleocanthal-elicited pungency of extra virgin olive oil.

Sci Rep 2021 Jun 4;11(1):11851. Epub 2021 Jun 4.

Monell Chemical Senses Center, Philadelphia, PA, USA.

The Mediterranean diet, considered one of the healthiest in the world, is characterized in part by the major source of its fat, which is extra virgin olive oil (EVOO). Among the health benefits of consuming EVOOs is the presence of phenolic compounds, which have been shown to lower the incidence of coronary heart disease and are suspected of providing many other health benefits. These phenolic compounds also contribute to the flavor of EVOO, adding both specific pungency in the throat and bitter notes that are valued by connoisseurs but reported to be unpleasant by naïve consumers. Read More

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Study on Efficacy of 1% Permethrin Shampoo and Some Traditional Physical Treatment for Head Lice Infestation.

Int J Prev Med 2021 19;12. Epub 2021 Jan 19.

Department of Medical Entomology and Vector Control, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.

Background: There is an increase in the prevalence of head lice among urban communities with high density in recent years. This study was aimed to determine the efficacy of 1% permethrin shampoo and some traditional physical treatment for head lice infestation in Qom Province, central Iran.

Methods: This analytical cross-sectional study was carried out on all 11,223 cases in six categories that were referred to Qom health care system from 2016 to March of 2017. Read More

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January 2021

A Quantitative Study on the Protective Effects of Resveratrol against Bisphenol A-induced Hepatotoxicity in Rats: A Stereological Study.

Iran J Med Sci 2021 May;46(3):218-227

Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.

Background: Bisphenol A (BPA) is a widely used chemical with toxic effects on the liver. Resveratrol (RES) is an herbal compound with protective properties. This study aimed to investigate the protective effects of RES on the liver in rats exposed to BPA. Read More

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Application of Raman spectroscopy in the rapid detection of waste cooking oil.

Food Chem 2021 May 25;362:130191. Epub 2021 May 25.

Key Laboratory of Meat Processing, MOA Key Laboratory of Meat Processing and Quality Control, MOE Jiang Synergetic Innovation Center of Meat Production, Processing and Quality Control, Nanjing Agricultural University, Nanjing 210095, PR China.

Raman spectra were used to distinguish waste cooking oil from edible vegetable oils. Signals at 869, 969, 1302 and 1080 cm were found to be crucial to distinguish waste cooking oil from five edible oils using PCA. When waste cooking oil was added to soybean or olive oil, PCA could separate adulterated and pure oils, when the adulteration proportions reached 10% and 20%, respectively. Read More

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Wax-oil lubricants to reduce the shear between skin and PPE.

Sci Rep 2021 06 2;11(1):11537. Epub 2021 Jun 2.

Department of Mechanical Engineering, Imperial College London, London, UK.

Prolonged use of tight-fitting PPE, e.g., by COVID-19 healthcare workers leads to skin injuries. Read More

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Naturally Oxidized Olive Oil Promotes Active Cutaneous Anaphylaxis and Th2 Cytokine Production.

Biol Pharm Bull 2021 ;44(6):838-843

Department of Public Health & Preventive Pharmacology, Faculty of Pharmaceutical Sciences, Setsunan University.

The excessive ingestion of oxidized dietary oils may exacerbate some allergic diseases. We previously reported that oxidized olive oil exacerbates active cutaneous anaphylaxis (ACA), one of the immediate allergic reactions. This study was conducted to clarify the effects of oxidized olive oil on the T cell response during ACA. Read More

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January 2021

Lipid Intake and Neurodevelopment in Preterm Infants.

Neoreviews 2021 Jun;22(6):e370-e381

Developing Brain Research Laboratory, Children's National Hospital, Washington, DC.

Preterm infants are born before the critical period of lipid accretion and brain development that occurs during the third trimester of pregnancy. Dietary lipids serve as an important source of energy and are involved in complex processes that are essential for normal central nervous system development. In addition to traditional neurodevelopmental testing, novel quantitative magnetic resonance imaging (MRI) techniques are now available to evaluate the impact of nutritional interventions on early preterm brain development. Read More

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The Potential of Virgin Olive Oil from cv. Chondrolia Chalkidikis and Chalkidiki (Greece) to Bear Health Claims according to the European Legislation.

Molecules 2021 May 26;26(11). Epub 2021 May 26.

Laboratory of Food Chemistry and Technology, School of Chemistry, Aristotle University of Thessaloniki (AUTH), 54124 Thessaloniki, Greece.

The European food legislation authorizes the use of certain health claims based on a scientific basis. This study aimed to evaluate the fatty acid, tocopherol, and polar phenol composition of virgin olive oil (VOO) from cv. Chondrolia Chalkidikis and Chalkidiki regarding the fulfillment of official requirements for the health claims of 'oleic acid', 'vitamin E', and 'olive oil polyphenols'. Read More

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Drupe Characters, Fatty Acids, Polyphenolic and Aromatic Profile of Olive Oil Obtained from "Oliva Bianca", Minor Autochthonous Cultivar of Campania.

Plants (Basel) 2021 May 31;10(6). Epub 2021 May 31.

Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131 Naples, Italy.

Campania, due to its pedo-climatic conditions and to its large varietal heritage, is able to produce oils with high typicity, each different from the other. In this study a "minor" autochthonous cultivar of Campania "Oliva Bianca" was analyzed. In autumn 2020, on drupes from trees belonging to the Campania germplasm collection a varietal characterization through physical, chemical and chromatic parameters at the harvest was carried out. Read More

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Olive Oil/Pluronic Oleogels for Skin Delivery of Quercetin: In Vitro Characterization and Ex Vivo Skin Permeability.

Polymers (Basel) 2021 May 31;13(11). Epub 2021 May 31.

Department of Pharmaceutics, Faculty of Pharmacy, Ahram Canadian University, Giza 14756, Egypt.

The main objective of this study was to prepare and characterize oleogel as potential carrier for quercetin skin delivery. The formulations were prepared by adding olive oil (5-30%) to Pluronic F127 hydrogel and were evaluated for particle size, zeta potential, viscosity in vitro quercetin release and stability, and were compared with that of Pluronic F127 hydrogel. The selected formulation was characterized for its interaction possibility, ex vivo skin permeation and skin histological changes and safety. Read More

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Bioactive Compounds in Waste By-Products from Olive Oil Production: Applications and Structural Characterization by Mass Spectrometry Techniques.

Foods 2021 May 29;10(6). Epub 2021 May 29.

Chemistry Department, University of Bari Aldo Moro, via Orabona 4, 70126 Bari, Italy.

In recent years, a remarkable increase in olive oil consumption has occurred worldwide, favoured by its organoleptic properties and the growing awareness of its health benefits. Currently, olive oil production represents an important economic income for Mediterranean countries, where roughly 98% of the world production is located. Both the cultivation of olive trees and the production of industrial and table olive oil generate huge amounts of solid wastes and dark liquid effluents, including olive leaves and pomace and olive oil mill wastewaters. Read More

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Olive Fruit Development and Ripening: Break on through to the "-Omics" Side.

Int J Mol Sci 2021 May 28;22(11). Epub 2021 May 28.

Institute of Soil and Water Resources, Hellenic Agricultural Organization-'Demeter' (ELGO-Demeter), 57001 Thessaloniki-Thermi, Greece.

The olive tree ( L. subsp. ) is the most important perennial crop in the Mediterranean region, producing table olives and oil, both appreciated for their nutraceutical value. Read More

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Consumption of Enriched Yogurt with PAF Inhibitors from Olive Pomace Affects the Major Enzymes of PAF Metabolism: A Randomized, Double Blind, Three Arm Trial.

Biomolecules 2021 May 28;11(6). Epub 2021 May 28.

Department of Nutrition-Dietetics, School of Health Sciences and Education, Harokopio University, 17671 Athens, Greece.

Platelet-activating factor (PAF), a proinflammatory lipid mediator, plays a crucial role in the formation of the atherosclerotic plaque. Therefore, the inhibition of endothelium inflammation by nutraceuticals, such as PAF inhibitors, is a promising alternative for preventing cardiovascular diseases. The aim of the present study was to evaluate the impact of a new functional yogurt enriched with PAF inhibitors of natural origin from olive oil by-products on PAF metabolism. Read More

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Searching for the Antioxidant, Anti-Inflammatory, and Neuroprotective Potential of Natural Food and Nutritional Supplements for Ocular Health in the Mediterranean Population.

Foods 2021 May 28;10(6). Epub 2021 May 28.

Ophthalmic Research Unit "Santiago Grisolía" Foundation for the Promotion of Health and Biomedical Research of Valencia FISABIO, 46017 Valencia, Spain.

Adherence to a healthy diet offers a valuable intervention to compete against the increasing cases of ocular diseases worldwide, such as dry eye disorders, myopia progression, cataracts, glaucoma, diabetic retinopathy, or age macular degeneration. Certain amounts of micronutrients must be daily provided for proper functioning of the visual system, such as vitamins, carotenoids, trace metals and omega-3 fatty acids. Among natural foods, the following have to be considered for boosting eye/vision health: fish, meat, eggs, nuts, legumes, citrus fruits, nuts, leafy green vegetables, orange-colored fruits/vegetables, olives-olive oil, and dairy products. Read More

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Spices, Condiments, Extra Virgin Olive Oil and Aromas as Not Only Flavorings, but Precious Allies for Our Wellbeing.

Antioxidants (Basel) 2021 May 28;10(6). Epub 2021 May 28.

Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131 Napoli, Italy.

Spices, condiments and extra virgin olive oil (EVOO) are crucial components of human history and nutrition. They are substances added to foods to improve flavor and taste. Many of them are used not only to flavor foods, but also in traditional medicine and cosmetics. Read More

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Influence of the Ripening Stage and Extraction Conditions on the Phenolic Fingerprint of 'Corbella' Extra-Virgin Olive Oil.

Antioxidants (Basel) 2021 May 30;10(6). Epub 2021 May 30.

Department of Nutrition, Food Science and Gastronomy, XIA, Faculty of Pharmacy and Food Sciences, Institute of Nutrition and Food Safety (INSA-UB), University of Barcelona, 08028 Barcelona, Spain.

The ancient 'Corbella' olive variety from the center-north of Catalonia is being recovered to obtain quality extra-virgin olive oil (EVOO) with unique organoleptic properties. The aim of this work was to determine the effect of agronomic and technical factors on the phenolic fingerprint of EVOO and to establish the optimum harvesting time and crushing and malaxation conditions for 'Corbella' olives. Therefore, three different ripening indices (0. Read More

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Comparative Gene Signature of (-)-Oleocanthal Formulation Treatments in Heterogeneous Triple Negative Breast Tumor Models: Oncological Therapeutic Target Insights.

Nutrients 2021 May 18;13(5). Epub 2021 May 18.

School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, 1800 Bienville Drive, Monroe, LA 71201, USA.

Triple negative breast cancer (TNBC) heterogeneity and limited therapeutic options confer its phenotypic aggressiveness. The discovery of anti-TNBC natural products with valid molecular target(s) and defined pharmacodynamic profile would facilitate their therapeutic nutraceutical use by TNBC patients. The extra-virgin olive oil (EVOO) is a key Mediterranean diet ingredient. Read More

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(-)-Oleocanthal Nutraceuticals for Alzheimer's Disease Amyloid Pathology: Novel Oral Formulations, Therapeutic, and Molecular Insights in 5xFAD Transgenic Mice Model.

Nutrients 2021 May 18;13(5). Epub 2021 May 18.

School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, 1800 Bienville Drive, Monroe, LA 71201, USA.

Alzheimer's disease (AD) is a complex progressive neurodegenerative disorder affecting humans mainly through the deposition of Aβ-amyloid (Aβ) fibrils and accumulation of neurofibrillary tangles in the brain. Currently available AD treatments only exhibit symptomatic relief but do not generally intervene with the amyloid and tau pathologies. The extra-virgin olive oil (EVOO) monophenolic secoiridoid -(-)-oleocanthal (OC) showed anti-inflammatory activity through COX system inhibition with potency comparable to the standard non-steroidal anti-inflammatory drug (NSAID) like ibuprofen. Read More

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Mediterranean Diet and SARS-COV-2 Infection: Is There Any Association? A Proof-of-Concept Study.

Nutrients 2021 May 19;13(5). Epub 2021 May 19.

Department of Medical Sciences, University of Torino, 10126 Torino, Italy.

The aim of this observational study was investigating the possible correlation between adherence to the Mediterranean diet (MeD) and SARS-COV-2 infection rates and severity among healthcare professionals (HCPs). An online self-administrated questionnaire (evaluating both MeD adherence and dietary habits) was filled out by HCPs working in Piedmont (Northern Italy) from 15 January to 28 February 2021. Out of the 1206 questionnaires collected, 900 were considered reliable and analyzed. Read More

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Oleacein Intestinal Permeation and Metabolism in Rats Using an In Situ Perfusion Technique.

Pharmaceutics 2021 May 14;13(5). Epub 2021 May 14.

CIBER Physiopathology of Obesity and Nutrition (CIBEROBN), Institute of Health Carlos III, 28029 Madrid, Spain.

Oleacein (OLEA) is one of the most important phenolic compounds in extra virgin olive oil in terms of concentration and health-promoting properties, yet there are insufficient data on its absorption and metabolism. Several non-human models have been developed to assess the intestinal permeability of drugs, among them, single-pass intestinal perfusion (SPIP), which is commonly used to investigate the trans-membrane transport of drugs in situ. In this study, the SPIP model and simultaneous luminal blood sampling were used to study the absorption and metabolism of OLEA in rats. Read More

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