Article View: sci.bio
Article #1432Re: blue urine from food
From: Larry Lippman
Date: Thu, 22 Nov 1990 20:37
Date: Thu, 22 Nov 1990 20:37
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1252 bytes
In article <999@ai.cs.utexas.edu>, throop@cs.utexas.edu (David Throop) writes:
> Bill Ellis asked about adultrants in candy that turn urine blue.
> Several other posters said that methylene blue will do this.
Yup, it sure will.
> I have also heard that an herb called bearberry has a similar effect.
> Can anybody confirm?
Bearberry (uva ursis - what *else* would you call it in Latin ? :-))
contains tannic acid, gallic acid and a gluco[pyrano]side called arbutin.
Arbutin and/or its metabolic decomposition product results in green urine.
Larry Lippman @ Recognition Research Corp. "Have you hugged your cat today?"
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rutgers!apple!usc!elroy.jpl.nasa.gov!jarthur!uunet!kitty!larry From: larry@kitty.UUCP (Larry Lippman) Newsgroups: sci.bio,rec.food.cooking Subject: Re: blue urine from food Summary: Bearberry and green urine... Message-ID: <4187@kitty.UUCP> Date: 22 Nov 90 20:37:14 GMT References: <1990Oct29.161332.27997@agate.berkeley.edu> <999@ai.cs.utexas.edu> Organization: Recognition Research Corp., Clarence, NY Lines: 16