Concerned about authenticity of your shrimp? problem solved in 90 minute or less

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Doug
E. Coli Lysate Member
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Concerned about authenticity of your shrimp? problem solved in 90 minute or less

Postby Doug » Tue Jun 28, 2011 11:32 pm

I am often disappointed to see people tackling problems with proteomics that could probably be answered more easily with other methods (typically, microarray, RNA-Seq, etc). But this paper does not disappoint. Let's suppose you want to know what species of shrimp you have, and you dont have a lot of time. Now I don't find myself in this predicament too often but I acknowledge that there probably is a need for authentication of food and many other products. Here they demonstrate a method for identification of species, using SRM, in less than 90 minutes! That is the time from sample arrival to ID. not bad. Apparently they use intensity focused ultrasound-assisted trypsin digestion which takes about 60 seconds. I love hearing about new real world applications of proteomics like this.
Ortea I, Cañas B, Gallardo JM. Selected tandem mass spectrometry ion
monitoring for the fast identification of seafood species. J Chromatogr A. 2011
Jul 15;1218(28):4445-51. Epub 2011 May 17. PubMed PMID: 21621784.

justin
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Postby justin » Tue Jul 05, 2011 6:10 am

Some of us take our shrimp very seriously...


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