Re: HYB: pigments, Mystery Blush

Thanks Chuck.  Not sure I have the courage to sacrifice a whole fresh
flower this time of year.  Color seems to have stayed the same, but who
knows what it would have been with a fresh flower.

Just to make sure I understand - first extract with water to get
anthocyanins, then alcohol to get other water/alcohol soluble pigments?
So the anthocyanins will come out in the water, then the
orange/yellow/pink whatever is left can be extracted with alcohol?

Is distilled vinegar a suitable acidifier?  How much?  One drop per
tablespoon?

<Use straight water, preferable distilled. Fresh flower works best. On
older flowers there is some decomposition of flower which remains in
solution and pigment also has deterioated. Alchohol extraction of water
based pigments can be a problem as they often degrade very quickly
unless the alcohol is slightly acidified
                   Hope this helps

                   Chuck Chapman>

--
Linda Mann east Tennessee USA zone 7/8
East Tennessee Iris Society <http://www.korrnet.org/etis>
American Iris Society web site <http://www.irises.org>
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