Proantocijanidin A-tipa

Proantocijanidini A-tipa su specifičan tip proantocijanidina, koji su klasa flavanoida. Proantocijanidini se ubrajaju u širok opseg imena u nutricionom i naučnom žargonu, uključujući oligomere proantocijanidine, flavanoide, polifenole, kondenzovane tanine, i OPC jedinjenja. Proantocijanidine je prvi popularizovao francuski naučnih Žak Maskelijer.^[1]

Distribucija u biljkama

A-tip veze je manje zastupljeno svojstvo kod proantocijanidina sa 4β→8 (B-tip) i 2β→O→7 interflavanoidnim vezama.^[2]

A-tip proantocijanidinskih glikozida se može izolovati iz čokoladne tečnosti.^[3]

Dimeri

Procijanidin A1 je epikatehin-(2β→7,4β→8)-epikatehinski dimer.
Procijanidin A2 je dimerni (-)epikatehin.

Drugi proantocijanidini A-tipa se mogu naći u brusnicama,^[2] cimetu,^[4] ljusci kikirikija^[5]^[6] i Geranium niveum.^[7]

Reference

^ Fine, AM (2000). „Oligomeric proanthocyanidin complexes: history, structure, and phytopharmaceutical applications” (PDF). Alternative medicine review. 5 (2): 144—51. PMID 10767669. Архивирано из оригинала (PDF) 04. 11. 2009. г. Приступљено 15. 01. 2017.
^ ^а ^б Neto, CC (2007). „Cranberry and its phytochemicals: a review of in vitro anticancer studies”. The Journal of Nutrition. 137 (1 Suppl): 186S—193S. PMID 17182824.
^ Hatano, T; Miyatake, H; Natsume, M; Osakabe, N; Takizawa, T; Ito, H; Yoshida, T (2002). „Proanthocyanidin glycosides and related polyphenols from cacao liquor and their antioxidant effects”. Phytochemistry. 59 (7): 749—58. PMID 11909632. doi:10.1016/S0031-9422(02)00051-1.
^ María Luisa Mateos-Martín; Elisabet Fuguet; Carmen Quero; Jara Pérez-Jiménez; Josep Lluís Torres (2012). „New identification of proanthocyanidins in cinnamon (Cinnamomum zeylanicum L.) using MALDI-TOF/TOF mass spectrometry”. Analytical and Bioanalytical Chemistry. 402 (3): 1327—1336. PMID 22101466. doi:10.1007/s00216-011-5557-3.
^ de Camargo, A. C.; Regitano-d'Arce, M. A. B.; Gallo, C. R.; Shahidi, F., Gamma-irradiation induced changes in microbiological status, phenolic profile and antioxidant activity of peanut skin. Journal of Functional Foods 2015, 12, 129-143
^ Hongxiang Lou; Yamazaku Y.; Sasaku T.; Uchida M.; Tanaka H.; Oka S. (1999). „A-type proanthocyanidins from peanut skins”. Phytochemistry. 51 (2): 297—308. doi:10.1016/S0031-9422(98)00736-5.
^ Calzada, F; Cerda-García-Rojas, CM; Meckes, M; Cedillo-Rivera, R; Bye, R; Mata, R (1999). „Geranins a and B, new antiprotozoal A-type proanthocyanidins from Geranium niveum”. Journal of Natural Products. 62 (5): 705—9. PMID 10346950. doi:10.1021/np980467b.

[1] Fine, AM (2000). „Oligomeric proanthocyanidin complexes: history, structure, and phytopharmaceutical applications” (PDF). Alternative medicine review. 5 (2): 144—51. PMID 10767669. Архивирано из оригинала (PDF) 04. 11. 2009. г. Приступљено 15. 01. 2017.

[Neto-2] а ^б Neto, CC (2007). „Cranberry and its phytochemicals: a review of in vitro anticancer studies”. The Journal of Nutrition. 137 (1 Suppl): 186S—193S. PMID 17182824.

[3] Hatano, T; Miyatake, H; Natsume, M; Osakabe, N; Takizawa, T; Ito, H; Yoshida, T (2002). „Proanthocyanidin glycosides and related polyphenols from cacao liquor and their antioxidant effects”. Phytochemistry. 59 (7): 749—58. PMID 11909632. doi:10.1016/S0031-9422(02)00051-1.

[María_Luisa_Mateos-Martín-4] María Luisa Mateos-Martín; Elisabet Fuguet; Carmen Quero; Jara Pérez-Jiménez; Josep Lluís Torres (2012). „New identification of proanthocyanidins in cinnamon (Cinnamomum zeylanicum L.) using MALDI-TOF/TOF mass spectrometry”. Analytical and Bioanalytical Chemistry. 402 (3): 1327—1336. PMID 22101466. doi:10.1007/s00216-011-5557-3.

[5] Camargo, A. C.; Regitano-d'Arce, M. A. B.; Gallo, C. R.; Shahidi, F., Gamma-irradiation induced changes in microbiological status, phenolic profile and antioxidant activity of peanut skin. Journal of Functional Foods 2015, 12, 129-143

[Hongxiang-6] Hongxiang Lou; Yamazaku Y.; Sasaku T.; Uchida M.; Tanaka H.; Oka S. (1999). „A-type proanthocyanidins from peanut skins”. Phytochemistry. 51 (2): 297—308. doi:10.1016/S0031-9422(98)00736-5.

[7] Calzada, F; Cerda-García-Rojas, CM; Meckes, M; Cedillo-Rivera, R; Bye, R; Mata, R (1999). „Geranins a and B, new antiprotozoal A-type proanthocyanidins from Geranium niveum”. Journal of Natural Products. 62 (5): 705—9. PMID 10346950. doi:10.1021/np980467b.

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