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Docosahexaenoic acid DHA

Product Name:Docosahexaenoic acid,DHA
CAS NO.:6217-54-5
Molecular Formula:C22H32O2
Molecular Weight:328.49
Grade:Food Grade
Appearance:White Powder


Docosahexaenoic acid (DHA) is an omega-3 fatty acid that is a primary structural component of the human brain, cerebral cortex, skin, sperm, testicles and retina. It can be synthesized from alpha-linolenic acid or obtained directly from maternal milk (breast milk), fish oil or algae oil.DHA's structure is a carboxylic acid (-oic acid) with a 22-carbon chain (docosa- is Greek for 22) and six (hexa-) cis double bonds (-en-);with the first double bond located at the third carbon from the omega end.Its trivial name is cervonic acid, its systematic name is all-cis-docosa-4,7,10,13,16,19-hexa-enoic acid, and its shorthand name is 22:6(n-3) in the nomenclature of fatty acids.

DHA is the most abundant omega-3 fatty acid in the brain and retina. DHA comprises 40% of the polyunsaturated fatty acids (PUFAs) in the brain and 60% of the PUFAs in the retina. Fifty percent of the weight of a neuron's plasma membrane is composed of DHA.DHA is richly supplied during breastfeeding, and DHA levels are high in breastmilk regardless of dietary choices.

DHA modulates the carrier-mediated transport of choline, glycine, and taurine, the function of delayed rectifier potassium channels, and the response of rhodopsin contained in the synaptic vesicles, among many other functions.

DHA deficiency is associated with cognitive decline.Phosphatidylserine (PS) controls apoptosis, and low DHA levels lower neural cell PS and increase neural cell death.DHA levels are reduced in the brain tissue of severely depressed patients.

Ordinary types of cooked salmon contain 500-1500 mg DHA and 300-1000 mg EPA per 100 grams.Additional top fish sources of DHA include tuna, bluefish, mackerel, swordfish, anchovies, herring, sardines, and caviar.

Diets that consist of high doses of omega-3 fatty acids help prevent strokes. There are fewer strokes in countries where people consume high amounts of omega-3 fatty acids, such as Japan and Sweden


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