Everything about Palmitate totally explained
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Palmitic acid, or hexadecanoic acid in
IUPAC nomenclature, is one of the most common saturated
fatty acids found in animals and plants. As its name indicates, it's a major component of the oil from
palm trees (
palm oil and palm kernel oil). The word palmitic is from the French "palmitique", the
pith of the palm tree. Palmitic acid was discovered by
Edmond Frémy in 1840, in
saponified palm oil.
Butter,
cheese,
milk and
meat also contain this fatty acid.
Palmitate is a term for the salts or
esters of palmitic acid. The palmitate anion is the observed form of palmitic acid at physiological pH.
Biochemistry
Palmitic acid is the first fatty acid produced during
lipogenesis (fatty acid synthesis) and from which longer fatty acids can be produced. Palmitate negatively feeds back on
acetyl-CoA carboxylase (ACC) which is responsible for converting acetyl-ACP to malonyl-ACP on the growing acyl chain, thus preventing further palmitate generation.
Reduction of palmitic acid yields
cetyl alcohol.
Uses
Retinyl palmitate is an
antioxidant and a
vitamin A compound added to low-fat milk to replace the vitamin content lost through the removal of milk fat. Palmitate is attached to the alcohol form of vitamin A,
retinol, in order to make vitamin A stable in milk.
Derivatives of palmitic acid were used in combination with
naphtha during
World War II to produce
napalm (
naphthenic and
palmitic acids).
The
WHO claims there's convincing evidence that dietary intake of palmitic acid increases risk of developing cardiovascular diseases. However, possibly less-disinterested studies have shown no ill effect, or even a favorable effect, of dietary consumption of palmitic acid on blood lipids and cardiovascular disease, so that the
WHO finding may be deemed controversial. However, another study showed that palmitic acid has no hypercholesterolaemic effect if intake of linoleic acid is greater than 4.5% of energy. On the other hand, it was shown that, if the diet contains trans fatty acids, the health effects are negative, causing an LDL cholesterol increase and HDL cholesterol decrease.
Further Information
Get more info on 'Palmitate'.
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