*Price of the test:
$417 per analysis
All food products
Stevia can cause interference with the chromatography. Samples containing >2% stevia will damage the instrument therefore cannot be run through this method.
Limit of Detection:
Limit of Quantitation:
Sample Size Requirements:
Turn Around Time:
7-9 Business Days
Is Rush Available?
Samples (defatted if necessary) are digested 16 hours in a manner that simulates the human digestive system with 3 enzymes (pancreatic alpha-amylase, protease, and amyloglucosidase) to remove starch and protein. Ethanol is added to precipitate high molecular weight soluble dietary fiber. The resulting solution is filtered and the residue is dried and weighed. Protein and ash are determined on the residue. The filtrate is captured, concentrated, and analyzed via HPLC to determine the value of low molecular weight soluble dietary fiber (LMWSF).
Total dietary fiber (TDF) is calculated as the weight of the residue minus protein and ash plus the low molecular weight soluble fiber determined by HPLC analysis.
Information Required by Submitter:
Please supply expected estimates. Indicate matrix type and indicate if samples are high in fat (>5%). Indicate whether the sample contains fructans (inulin or fructooligosaccarides (FOS)), or psyllium, flax and gum (i.e. guar gum).
Measures total dietary fiber including resistant starch and low molecular weight non-digestible oligosaccharides of DP =3. If a breakout of soluble and insoluble fiber as well as total dietary fiber is desired, please choose our Total, Soluble, and Insoluble Dietary Fiber CODEX Definition method.
Please include notification for samples containing DP2 and DP3 carbohydrates (Isomalto-oligosaccharides (IMO), Maltiltol, Lactose).
Dietary Fiber is the portion of the carbohydrates which is not digested in the human gut. It is composed of both soluble and insoluble components. High-fat (>5%) samples require special handling.
If you have questions about our testing services, please contact us at +1 (800) 245-5615.
*Prices and offerings are subject to change without notice.