Carotene yellows are oil soluble. Flavanoid yellows are water soluble.
From: Linda Mann <email@example.com>
To: iris-photos <firstname.lastname@example.org>
Sent: Mon, Nov 25, 2013 9:50 am
Subject: [iris-photos] RE: HYB: seedling pigment?
Ok, I re-did the soaks, cut off the petal below the anthocyanin showing
in the shoulders, left out the beard.
Boiling water extract was blue. Not a lot, but some.
Removed and rinsed petal w hot water, soaked in hot 91% isopropyl
alcohol. Extract was very yellow.
Added lamp oil, sloshed it around and the oil layer is <very>
alcohol/water layer is greenish - looks like the alcohol removed a bit
of residual anthocyanin, plus some of yellow pigment.
Now if I could just remember which yellow(s?) is/are oil soluble, which
alcohol/water, I could interpret these results. ;-)
Linda Mann east TN USA zone 7b
chilly out! I think the time for re-setting seedlings may be over till