Chemical composition of olive oil

CONTENTS Olive oil constituents Saponifiable fraction Triglycerides Diglycerides and monoglycerides Unsaponifiable fractions Polyphenols Hydrocarbons Sterols Common sterols or 4α-desmethylsterols 4-Methylsterols Triterpene alcohols or 4,4-dimethylsterols Triterpene dialcohols Tocopherols Pigments Triterpene acids Fatty alcohols Diterpene alcohols Volatile compounds Minor components References Olive oil constituents From a chemical point of view, we can identify in the olive oil […]

Skin, blood pressure, rheumatoid arthritis and gamma-linolenic acid

Healthy skin and gamma-linolenic acid gamma-Linolenic acid (GLA), an omega-6 essential fatty acid, like its precursor linoleic acid (the most abundant polyunsaturated fatty acid in human skin epidermis, where it’s involved in the maintenance of the epidermal water barrier), plays important roles in the physiology and pathophysiology of the skin. Studies conducted on humans revealed that gamma-linolenic acid: improves skin moisture, firmness, […]

Omega-6 polyunsaturated fatty acids

The synthesis of omega-6 polyunsaturated fatty acids Omega-6 polyunsaturated fatty acids are the major polyunsaturated fatty acids (PUFA) in the Western diet (about 90% of all of them in the diet), being components of most animal and vegetable fats. Omega-6 polyunsaturated fatty acids and linoleic acid Within the omega-6 (ω-6) family, linoleic acid is one of the […]

Omega-3 polyunsaturated fatty acids

The synthesis of omega-3 polyunsaturated fatty acids Within omega-3 (ω-3) polyunsaturated fatty acid family: alpha-linolenic acid; eicosapentaenoic acid or EPA; docosahexaenoic acid or DHA. are important fatty acids. Omega-3 polyunsaturated fatty acids and α-linolenic acid Like linoleic acid (omega-6 fatty acid), alpha-linolenic acid or ALA is a primary product of plant polyunsaturated fatty acid or PUFA synthesis and […]

Essential fatty acids

CONTENTS What are essential fatty acids? Functions of EFA and their PUFA derivatives Foods rich in essential fatty acids and derived PUFAs Essential fatty acids in Western diets Omega-6/omega-3 ratio Recommended dietary intake References What are essential fatty acids? Essential fatty acids or EFA are fatty acids which cannot be synthesized de novo by animals, but […]

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