Efforts at NIST to provide SRMs for fatty acids began in the mid-1990s after Congress passed the Nutrition Labeling and Education Act (NLEA), which mandated specifications for the labeling of processed foods. Among the requirements of this law, the fat content, calories due to fat, and saturated and unsaturated fatty acid content must be provided on the nutritional label. Reference materials with fatty acid data are needed to underpin the measurements of chemical composition upon which the labeling is based. The use of SRMs to support the measurement of fatty acids is relevant to a broad spectrum of applications including compliance with legislation and accuracy of nutritional labeling, food manufacturing tolerances (e.g., infant formulas), traceability of measurements for food exports, clinical nutritional measurements, and characterization of alternative energy sources (e.g., biodiesel).
Additional Technical Details:
Biodiesel materials represent a special case since the materials that are produced from plant or animal fats are converted to FAMEs during manufacturing. The analysis of biodiesel SRMs is simplified, since the materials can be spiked with the internal standards and injected directly without further processing.
Start Date:February 1, 1996
Lead Organizational Unit:mml
Related Programs and Projects:
Sharpless, K. E., Schiller, S. B., Margolis, S. A., Thomas, J. B., Iyengar, G. V., Colbert, J. C., Gills, T. E., and Wise, S. A., "Certification of nutrients in Standard Reference Material 1846: Infant formula," J. AOAC Int., 80, 611-621 (1997).
Sharpless, K. E., Gill, L. M., Margolis, S. A., Wise, S. A., and Elkins, E., "Preparation of Standard Reference Material 2383 (Baby Food Composite) and Use of an Interlaboratory Comparison Exercise for Value-Assignment of its Nutrient Concentrations," J. AOAC Int., 82, 276-287 (1999).
Sharpless, K. E., Thomas, J. B., Nelson, B. C., Phinney, C. S., Sieber, J. R., Wood, L. J., Yen, J. H., and Howell, D. W., "Value assignment of nutrient concentrations in Standard Reference Material 2384 Baking Chocolate," J. Agric. Food Chem., 50 , 7069-7075 (2002).
Sharpless, K. E., Greenberg, R. R., Schantz, M. M., Welch, M. J., Wise, S. A., and Ihnat, M., "Filling the AOAC Triangle with Food-Matrix Standard Reference Materials," Anal. Bioanal. Chem., 378, 1161-1167 (2004).
Sharpless, K. E., Brown Thomas, J. M., Duewer, D. L., Putzbach, K., Rimmer, C., Sander, L. C., Schantz, M., Wise, S. A., Yarita, T., and Yen, J. H., "Preparation and Characterization of Standard Reference Material 3276 Carrot Extract in Oil," Anal. Bioanal. Chem., 389, 207-217 (2007).
Sander, L. C., Schantz, M. M., Sharpless, K. E., and Wise, S. A. "Standard Reference Materials to Support Measurement of Fatty Acids," Lipid Tech. 21, 7-12 (2009).