Description
Proanthocyanidins are present in the fruits, bark, leaves and seeds of many plants
where they provide protection against predation. At the same time they give
flavor and astringency to beverages such as wine, fruit juices and teas. They
belong to a class of polyphenols and are widely distributed throughout the
plant kingdom. Their antioxidants are much stronger than vitamin C or vitamin E
in aqueous systems.
Proanthocyanidins are oligomeric flavonoids.
They are dimers or oligomers of catechin
and epicatechin and their gallic acid esters.They share common properties with
other polyphenols, in particular their reducing capacity and ability to chelate
metal ions. However, their polymeric nature clearly makes them different. They
have a high affinity for proteins and their absorption through the gut barrier
is likely limited to the molecules of low polymerization degree and to the
metabolites formed by colonic microflora. You may also come across additional
substances in this category such as procyanidins, profisetinidins, and
prorobinetinidins.
Proanthocyanidins are in the first place
very strong antioxidants. Studies have shown that proanthocyanidins act as
anti-cancer and anti-allergic agents, and that they improve heart health.
Benefits
There are
a lot of research supports the following application:
>Antioxidant
>Hearth Disease
>Anti-Cancer
>Anti-Allergic
>Atherosclerosis,
>Gastric ulcer,
>Large bowel cancer,
>Cataracts and diabetes
Synonyms
Pycnogenol, OPC, Oligomeric Procyanidins
Source
The major proanthocyanidins (flavanols) are present in whole fruit, juice, and pulp of strawberry, Saskatoon berry, raspberry, wild blueberry, chokecherry, seabuckthorn and some other plants.
General source of dietary supplements for grape seed extract and pine bark extract.
Side
effects and safety
No significant side effects were reported
Nutragreen Biotechnology Co., Ltd, a brand of Shanghai Lvshang
Biotech Co., Ltd, is a GMP compliant and FDA registered manufacturer and
supplier of raw materials of plant extracts, botanicals, herbs, especially
Tradtional Chinese herbs.Proanthocyanidins(OPC) is one of our most
competitive ingredients with various specifications and stocks available all
year round.
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