Question below more appropriate to this list. Please reply to Mariana Horsten who may not be on the seafood list.
-----Original Message-----
From: Mariana Horsten [SMTP:mho@dfu.min.dk]
Sent: 17 August 2000 09:41
To: FISH-SCI@SEGATE.SUNET.SE
Subject: Green post-freezing discoloration in tropical shrimp?
I have received the following query, regarding shrimp fisheries in Cameroon:
" Here (in Cameroon), 'Giant Sea Shrimps (Sea Bob)' are caught at sea, and frozen onboard. After about a week at sea, the boats return to port, where the catch is treated with 'sulfite' and prepared for sale. However, about 20% of the catch develops a green discoloration, and has to be discarded. What causes this? I suspect it's either a bacterial infection or 'enzymatic oxidation'. I've read that Ivory Coast has a similar problem, but there the shrimp turn black. "
If anyone has information on this phenomenon, let us know!
Mariana
==========================================
Mariana B. Horsten
Department of Marine Fisheries
Danish Institute for Fisheries Research (DIFRES)
DK-2920 Charlottenlund
DENMARK
Email: mho@dfu.min.dk --- Tel: (+45) 33 96 33 59
Website: http://mbhorsten.tripod.com/ (updated: 21.06.2000)
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