Procyanidin_B3

Procyanidin B3

Procyanidin B3

Chemical compound

Procyanidin B3 is a B type proanthocyanidin. Procyanidin B3 is a catechin dimer (catechin-(4α→8)-catechin).

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Natural occurrences

It can be found in red wine,[1] in barley,[2][3] in beer,[4] in peach[5] or in Jatropha macrantha, the Huanarpo Macho.[6]

Health effects

It has been identified as a hair-growth stimulant.[2]

Chemical synthesis

Molar equivalents of synthetic (2R,3S,4R or S)-leucocyanidin and (+)-catechin condense with exceptional rapidity at pH 5 under ambient conditions to give the all-trans-[4,8]- and [4,6]-bi-[(+)-catechins] (procyanidins B3, B6) the all-trans-[4,8:4,8]- and [4,8:4,6]-tri-[(+)-catechins] (procyanidin C2 and isomer).[7]

See also

References

  1. [1]
    C. Dallas, J.M. Ricardo-Da-Silva and Olga Laureano (1995). "Degradation of oligomeric procyanidins and anthocyanins in a Tinta Roriz red wine during maturation" (PDF). Vitis. 34 (1): 51–56. Archived from the original (PDF) on 2013-12-03. Retrieved 2013-06-24.
  2. [2]
    Kamimura, A; Takahashi, T (2002). "Procyanidin B-3, isolated from barley and identified as a hair-growth stimulant, has the potential to counteract inhibitory regulation by TGF-beta1". Experimental Dermatology. 11 (6): 532–41. doi:10.1034/j.1600-0625.2002.110606.x. PMID 12473061. S2CID 39454993.
  3. [3]
    Quinde-Axtell, Zory; Baik, Byung-Kee (2006). "Phenolic Compounds of Barley Grain and Their Implication in Food Product Discoloration". Journal of Agricultural and Food Chemistry. 54 (26): 9978–84. doi:10.1021/jf060974w. PMID 17177530.
  4. [4]
    Delcour, Jan (1985). Structure elucidation of proanthocyanidins: Direct synthesis and isolation from Pilsener beer.
  5. [5]
    Infante, Rodrigo; Contador, Loreto; Rubio, Pía; Aros, Danilo; Peña-Neira, Álvaro (2011). "Postharvest Sensory and Phenolic Characterization of 'Elegant Lady' and 'Carson' Peaches" (PDF). Chilean Journal of Agricultural Research. 71 (3): 445–451. doi:10.4067/S0718-58392011000300016.
  6. [6]
    Benavides, Angelyne; Montoro, Paola; Bassarello, Carla; Piacente, Sonia; Pizza, Cosimo (2006). "Catechin derivatives in Jatropha macrantha stems: Characterisation and LC/ESI/MS/MS quali–quantitative analysis". Journal of Pharmaceutical and Biomedical Analysis. 40 (3): 639–47. doi:10.1016/j.jpba.2005.10.004. PMID 16300918.
  7. [7]
    Delcour, Jan. A.; Ferreira, Daneel; Roux, David G. (1983). "Synthesis of condensed tannins. Part 9. The condensation sequence of leucocyanidin with (+)-catechin and with the resultant procyanidins". Journal of the Chemical Society, Perkin Transactions 1: 1711. doi:10.1039/P19830001711.


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