Category: Uncategorized

Twitter Weekly Updates for 2010-02-12

By Will, February 12, 2010 1:20 am

Twitter Weekly Updates for 2010-02-05

By Will, February 5, 2010 1:20 am

Twitter Weekly Updates for 2010-01-29

By Will, January 29, 2010 1:20 am

Twitter Weekly Updates for 2010-01-22

By Will, January 22, 2010 1:20 am

Twitter Weekly Updates for 2010-01-15

By Will, January 15, 2010 1:20 am

Twitter Weekly Updates for 2010-01-08

By Will, January 8, 2010 1:20 am

Twitter Weekly Updates for 2009-12-25

By Will, December 25, 2009 1:20 am

Twitter Weekly Updates for 2009-12-18

By Will, December 18, 2009 1:20 am

DNA Barcodes and the Economics of Food Safety

By Fred, December 5, 2009 5:45 pm
Sushi is being identified through genetic means

Sushi is being identified through genetic means

The WSJ just published a great article on the use of DNA ‘barcodes’ for speciation of food products.  Unfortunately, species identification is much simpler in animals than it is in plants.   While the methods employed are not immediately valuable, they do show that clear identification of food products and their components continues to grow as a societal issue.

The article, reported by Robert Lee Hotz, outlines how rapid genetic sequencing is increasingly being used to identify animals for food, environmental and other reasons.  He focuses on a recent test of 68 samples from 31 sushi restaurants in New York and Denver (why would you eat Sushi in Denver?) which found that restaurant patrons weren’t always getting what they ordered.  Lower cost, endangered, and even potentially dangerous fish species were served in their place.

A similar survey in Canada of 18 sushi restaurants found that half the orders were mislabeled.  A 2004 study by the University of North Carolina estimated that 3/4 of all snapper sold in the US was mislabeled.

This also matters for food labeling and species conservation.  Current guidelines restrict the label Grouper to 33 species of fish.

This has profound implications for all of us who are concerned about the presenece of gluten, or other foods, in our diets.  We are not alone.  Almost as important as the health, safety and species conservation aspects of this article is the fact that there are clear economic implications.  It matters what people eat; there is money to be had for those who pay attention.

Twitter Weekly Updates for 2009-11-06

By Will, November 6, 2009 1:20 am