Talk:Thearubigin

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Fermentation

Why not keep the statement that tea fermentation is not a true fermentation? --Slashme 11:17, 14 December 2006 (UTC)[reply]

because it's a minor fact, and is probaly only worth mentioning once, in one place, rather than on every page. MatthewEHarbowy 16:08, 14 December 2006 (UTC)[reply]

OK, good point. Back to your version! --Slashme 19:56, 14 December 2006 (UTC)[reply]

Chemical origin of Thearubigins

I see MatthewEHarbowy removed the statement on the source of thearubigins as being derived from the condensation of theaflavins with epitheaflavic acids, saying that the citation didn't support the claim. Sure, it isn't the primary source of the statement, but it is a freely available pdf, and it mentions the reaction. I say keep it until you get a better source. --Slashme 11:17, 14 December 2006 (UTC)[reply]

Because it's wrong. Condensation of the theaflavins with the epitheaflavic acids cannot explain the thearubigins because theaflavins are formed at most in 5-10% quantities, and epitheaflavic acids are formed at most in 1% quantities, and the condensation of the two cannot explain the 20% or so mass of thearubigins even if all the theaflavins and ETAs are converted, which they aren't. See: ME HARBOWY, DA BALENTINE Critical reviews in plant sciences 16:55, 415-480, CRC Press, 1997.MatthewEHarbowy 16:08, 14 December 2006 (UTC)[reply]

OK, that makes sense now. Unfortunately our campus library is closed in the evenings at this time of year, and our university doesn't have an online subscription to crit. rev. plant sci., so I can't get my hands on your article. Could you please give a brief account of the current state of knowledge of where thearubigins come from? You seem to be enough of an expert ;-). Otherwise, if you send me a reprint of your article, I could always take some time next week to write a proper article. --Slashme 19:50, 14 December 2006 (UTC)[reply]

Pronunciation?

How do you say Thearubigin? Can someone add a pronunciation to the intro? RJFJR (talk) 17:03, 2 April 2014 (UTC)[reply]