Document Detail


Value assignment of nutrient concentrations in five standard reference materials and six reference materials.
MedLine Citation:
PMID:  10772181     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A number of food-matrix reference materials (RMs) are available from the National Institute of Standards and Technology (NIST) and from Agriculture Canada through NIST. Most of these materials were originally value-assigned for their elemental composition (major, minor, and trace elements), but no additional nutritional information was provided. Two of the materials were certified for selected organic constituents. Ten of these materials (Standard Reference Material [SRM] 1,563 Cholesterol and Fat-Soluble Vitamins in Coconut Oil [Natural and Fortified], SRM 1,566b Oyster Tissue, SRM 1,570a Spinach Leaves, SRM 1,974a Organics in Mussel Tissue (Mytilus edulis), RM 8,415 Whole Egg Powder, RM 8,418 Wheat Gluten, RM 8,432 Corn Starch, RM 8,433 Corn Bran, RM 8,435 Whole Milk Powder, and RM 8,436 Durum Wheat Flour) were recently distributed by NIST to 4 laboratories with expertise in food analysis for the measurement of proximates (solids, fat, protein, etc.), calories, and total dietary fiber, as appropriate. SRM 1846 Infant Formula was distributed as a quality control sample for the proximates and for analysis for individual fatty acids. Two of the materials (Whole Egg Powder and Whole Milk Powder) were distributed in an earlier interlaboratory comparison exercise in which they were analyzed for several vitamins. Value assignment of analyte concentrations in these 11 SRMs and RMs, based on analyses by the collaborating laboratories, is described in this paper. These materials are intended primarily for validation of analytical methods for the measurement of nutrients in foods of similar composition (based on AOAC INTERNATIONAL's fat-protein-carbohydrate triangle). They may also be used as "primary control materials" in the value assignment of in-house control materials of similar composition. The addition of proximate information for 10 existing reference materials means that RMs are now available from NIST with assigned values for proximates in 6 of the 9 sectors of the AOAC triangle. Five of these materials have values assigned for total dietary fiber-the first such information provided for materials available from NIST.
Authors:
K E Sharpless; L M Gill
Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Journal of AOAC International     Volume:  83     ISSN:  1060-3271     ISO Abbreviation:  J AOAC Int     Publication Date:    2000 Mar-Apr
Date Detail:
Created Date:  2000-05-31     Completed Date:  2000-05-31     Revised Date:  2008-03-17    
Medline Journal Info:
Nlm Unique ID:  9215446     Medline TA:  J AOAC Int     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  413-23     Citation Subset:  IM    
Affiliation:
National Institute of Standards and Technology, Gaithersburg, MD 20899-8392, USA.
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MeSH Terms
Descriptor/Qualifier:
Chromatography, Gas
Dietary Carbohydrates / analysis
Dietary Fats / analysis
Dietary Fiber / analysis
Dietary Proteins / analysis
Energy Intake
Fatty Acids / analysis
Food Analysis*
Food Labeling
Hydrolysis
Nutritive Value*
Quality Control*
Reference Standards
Chemical
Reg. No./Substance:
0/Dietary Carbohydrates; 0/Dietary Fats; 0/Dietary Proteins; 0/Fatty Acids

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