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- Procyanidin B2 is a B type proanthocyanidin. Its structure is (−)-Epicatechin-(4β→8)-(−)-epicatechin. Procyanidin B2 can be found in Cinchona pubescens (Chinchona: in the rind, bark, and cortex), in Cinnamomum verum (Ceylon cinnamon: in the rind, bark, and cortex), in Crataegus monogyna (Common hawthorn: in the flower and blossom), in Uncaria guianensis (Cat's claw: in the root), in Vitis vinifera (Common grape vine: in the leaf), in Litchi chinensis (litchi: in the pericarp), in the apple, and in Ecdysanthera utilis. Procyanidin B2 can be converted into procyanidin A2 by radical oxidation using 1,1-diphenyl-2-picrylhydrazyl (DPPH) radicals under neutral conditions. Procyanidin B2 has been shown to inhibit the formation of the advanced glycation end-products pentosidine, carboxymethyllysine (CML), and methylglyoxal (MGO). (en)
- La procyanidine B2 est une procyanidine de type B. C'est un dimère de flavanols formé de deux monomères d'épicatéchine liés par une liaison 4β→8. La procyanidine B2 peut être trouvée dans la nature chez certains végétaux tels que le raisin Vitis vinifera (feuilles, pépin, baie, vin). On trouve également le composé dans le chocolat. (fr)
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- Procyanidin-B2 (en)
- (−)-Epicatechin-(4β→8)-(−)-epicatechin (en)
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- (2R,2′R,3R,3′R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-3,3′,4,4′-tetrahydro-2H,2′H-[4,8′-bi-1-benzopyran]-3,3′,5,5′,7,7′-hexol (en)
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- Structure_of_Procyanidin_B2.png (en)
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- Chemical structure of procyanidin B2 (en)
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- Procyanidin-B2 (en)
- -Epicatechin---epicatechin (en)
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- La procyanidine B2 est une procyanidine de type B. C'est un dimère de flavanols formé de deux monomères d'épicatéchine liés par une liaison 4β→8. La procyanidine B2 peut être trouvée dans la nature chez certains végétaux tels que le raisin Vitis vinifera (feuilles, pépin, baie, vin). On trouve également le composé dans le chocolat. (fr)
- Procyanidin B2 is a B type proanthocyanidin. Its structure is (−)-Epicatechin-(4β→8)-(−)-epicatechin. Procyanidin B2 can be found in Cinchona pubescens (Chinchona: in the rind, bark, and cortex), in Cinnamomum verum (Ceylon cinnamon: in the rind, bark, and cortex), in Crataegus monogyna (Common hawthorn: in the flower and blossom), in Uncaria guianensis (Cat's claw: in the root), in Vitis vinifera (Common grape vine: in the leaf), in Litchi chinensis (litchi: in the pericarp), in the apple, and in Ecdysanthera utilis. (en)
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- Procyanidine B2 (fr)
- Procyanidin B2 (en)
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