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New CRM for Selenomethionine in yeast developed by NRC Canada is now on the market


Mineral supplementation represents a sizeable portion of the multibillion dollar nutritional supplement / functional food / animal feed business.  Many of the supplemented metals are added as metal enriched yeast (i.e., Zn, Cr, Se) to the final formulation. However, there are currently no Certified Reference Materials available for quality control of measurements characterizing these supplements.  In the case of Se enriched yeast, the question of the quality of the product is even more difficult because most of the Se present is covalently bound to carbon, forming the non-canonical amino acid selenomethionine.  Most of the functionality claims for Se enriched yeast are related to its SeMet content.
Selenium Enriched Yeast Certified
Reference Material: SELM-1
Total Selenium   2059 ±  64
Selenomethionine  3431 ± 157
Methionine  5758 ± 277
* certification valid until Nov. 2006
It is intended that the expanded uncertainty UCRM  encompasses every aspect that reasonably contributes to the uncertainty of the measurand (e.g. measurement uncertainty, homogeneity, stability). A coverage factor of 2 was applied.
For more information about the material please visit the website at:

 Related EVISA Resources

EVISA News related to CRMs

February 15, 2013: JRC-IRMM has released ERM-BC211 certified rice reference material
February 1, 2012: LGC Standards strengthens European central warehouse for reference materials
May 3, 2011: New reference materials for the characterisation of selenium-enriched food products
March 20, 2011: Stability of Reference Materials for Speciation Analysis
November 23, 2010: New certified reference material supporting mercury speciation analysis of blood
September 28, 2009: New Beryllium Reference Material for Occupational Safety Monitoring
September 10, 2009: Speciation Analysis - Striving for Quality
February 3, 2009: New Reference Material for Hexavalent Chromium in Contaminated Soil
November 15, 2005: NIST/EPA/NJ DEP embark on the preparation of a soil reference materials for chromium speciation
August 2, 2005: New CRM for Selenomethionine in yeast developed by NRC Canada is now on the market
May 6, 2004: Reference materials producers launch new

last time modified: March 6, 2024


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