Procyanidin B3 is a
B type proanthocyanidin. Procyanidin B3 is a catechin dimer (
catechin
Catechin is a flavan-3-ol, a type of secondary metabolite providing antioxidant roles in plants. It belongs to the subgroup of polyphenols called flavonoids.
The name of the catechin chemical family derives from ''catechu'', which is the tanni ...
-(4α→8)-catechin).
Natural occurrences
It can be found in red wine, in
barley
Barley (''Hordeum vulgare''), a member of the grass family, is a major cereal grain grown in temperate climates globally. It was one of the first cultivated grains, particularly in Eurasia as early as 10,000 years ago. Globally 70% of barley p ...
,
in
beer
Beer is one of the oldest and the most widely consumed type of alcoholic drink in the world, and the third most popular drink overall after water and tea. It is produced by the brewing and fermentation of starches, mainly derived from ce ...
,
in
peach
The peach (''Prunus persica'') is a deciduous tree first domesticated and cultivated in Zhejiang province of Eastern China. It bears edible juicy fruits with various characteristics, most called peaches and others (the glossy-skinned, non-f ...
or in ''
Jatropha macrantha'', the Huanarpo Macho.
Health effects
It has been identified as a
hair-growth stimulant.
[
]
Chemical synthesis
Molar equivalents of synthetic (2R,3S,4R or S)- leucocyanidin and (+)-catechin
Catechin is a flavan-3-ol, a type of secondary metabolite providing antioxidant roles in plants. It belongs to the subgroup of polyphenols called flavonoids.
The name of the catechin chemical family derives from ''catechu'', which is the tanni ...
condense with exceptional rapidity at pH 5 under ambient conditions to give the all-trans- ,8 and ,6bi- +)-catechins(procyanidins B3, B6) the all-trans- ,8:4,8 and ,8:4,6tri- +)-catechins(procyanidin C2
Procyanidin C2 is a B type proanthocyanidin trimer, a type of condensed tannin.
Natural occurrences
Procyanidin C2 is found in grape seeds (''Vitis vinifera'') and wine, in barley (''Hordeum vulgare''), malt and beer, in '' Betula spp.'', in '' ...
and isomer).
See also
* Phenolic content in wine
The phenolic content in wine refers to the phenolic compounds—natural phenol and polyphenols—in wine, which include a large group of several hundred chemical compounds that affect the taste, color and mouthfeel of wine. These compounds include ...
References
Procyanidin dimers
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