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[DYSPHAGIA] Blue dye.
Due to concerns about infection control, we are only allowed to use
Methylene Blue which is delivered from the pharmacy and disposed of after
use. Has anyone else run into this type of edict?
> -----Original Message-----
> From: Irene Campbell-Taylor [SMTP:eripley@yahoo.com]
> Sent: Thursday, October 05, 2000 10:59 PM
> To: dysphagia@medonline.com
> Subject: [DYSPHAGIA] Blue dye.
>
> An excellent question someone asked me as well as the
> suggestion about bluberries prompted me to think some
> more about food additives, dyes, etc. especially in
> view of the article and what was not made clear in it.
> Food dyes come in two forms - straight colors and
> lakes. Straight colors are usually water soluble dyes.
> Lakes are insoluble and these are, I believe, the ones
> causing the problem.
> Blue dye No 1 is approved under the Food Drug and
> Cosmetic Act for direct addition to food in the US. It
> is approved in both forms, dye and lake. Also approved
> for direct addition are blue2, green 3, red 3, red 49,
> yellow5, yellow 6, all in both dye and lake forms as
> well as orange B, and citrus red no.2.
> I believe that there should have been more clarity to
> the description. It was described, if I remember
> correctly, as a coal tar derivative - the Lake not the
> dye.
> Color additives certifiable for food use ( a separate
> category) include blue#1 &2, Green #3, red #40. red
> #3. yellow#5 &6.
>
> Re the question about blueberries, colors exempt from
> classification include beet powder, carrot oil
> (wouldn't use this one myself), toasted cottonseed
> flour, fruit juice, grape color extract, grape skin
> extract, saffron, turmeric and vegetable juice. I
> think blueberry juice fits in here very nicely.
> Irene.
>
> =====
> Irene Campbell-Taylor, PhD
> Clinical Neuroscientist
>
> If one tells the truth, one is sure, sooner or later, to be found out.
> Oscar Wilde.
>
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