I think you misunderstood me
pyrosulfite and metabisulfite are just different names for the exact same
chemical compound - Na2S2O5
it is like table salt = sodium chloride or rust = iron oxide or water =
dihydrogen oxide
I agree about the sulfiting agents use being very wide spread - my
observations are the same
Yet it is still something not allowed in the US - seemingly even if so
labeled on raw shrimp
Jerry
-----Original Message-----
From: Hamad AL-Mishari [mailto:Hamad@alkulaibfisheries.com]
Sent: Thursday, August 21, 2003 10:49 PM
To: jerry@anresco.com
Subject: RE: Shrimp and tuna
Dear Mr Oliveras
We do not export to the US, Our market is mainly europe where sulphiting is
legel. I have a comment though, I have yet to see one shrimp processor who
does not use sulphites. whether here in yemen or india or pakistan or iran
or kuwait. Are you sure sulphiting is illegal in the usa? I know both
compounds are sulphites but pyro comes in more concentrated form. It is my
understanding that the pecent dilution is 0.02% ie 20g per 100 liters. and
metabi we use 200g per 100 liters
-----Original Message-----
From: E. Jerry Oliveras, Laboratory Director & President
[mailto:jerry@anresco.com]
Sent: Thursday, August 21, 2003 8:48 PM
To: 'Hamad AL-Mishari'
Cc: seafood@ucdavis.edu
Subject: RE: Shrimp and tuna
assumption is you are NOT using sulfiting agents on shrimp exported to the
US as this would be ILLEGAL.
metabisulfite and pyrosulfite are synonyms of the same exact chemical -
Na2S2O5
someone is trying to pull a fast one on you
Regards
E. Jerry Oliveras, Jr.
Laboratory Director & President
ANRESCO, Inc.
1370 Van Dyke Avenue
San Francisco, CA 94124
www.anresco.com
800-359-0920 x18
FAX: 415-822-6615
cell: 415-378-1600
alternate email: anresco@pacbell.net
-----Original Message-----
From: Hamad AL-Mishari [mailto:Hamad@alkulaibfisheries.com]
Sent: Wednesday, August 20, 2003 11:21 PM
To: seafood@ucdavis.edu
Subject: Shrimp and tuna
Dear List member
From the trade, i know not to process net caught tuna as the histamine
levels in it are high. I know that if i process it into loins it would be
rejected so I always use hook caught tuna. I kniw this but have yet to know
the logic behind. . I also have a question regarding accepted sulphite
levels in shrimps. We usaully use sodium metabisulphite, this year we have
another compound which as i understand is more concentrated . its sodium
pyrosulphite. if anyone would confirm the percentage of dilution and use. If
anyone would shed some light on the subjects I would be truly thankful
Best wishes and Regards
Hamad Al-Kulaib
VP Marketing
Qataria Fish & Shrimp Processing Co
Tel: 967 3 268421/2
Fax: 967 3 268423
Hodeidah, Yemen
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