Test Price:
$450.00 per analysis
Acceptable Matrices:
Foods and food ingredients
Unacceptable Matrices:
Product with high concentrations of Stevia. Contact us for testing options.
Quantitation Limit:
0.1%
Sample Size Requirements:
40 grams
Equipment:
HPLC
Reportable Units:
% (g/100g)
Turnaround Time:
7-9 Business Days
Is rush testing available?
Yes
Method Reference:
AOAC 2017.16 with modifications
Method Description:
Samples (defatted, if necessary) are digested four hours in a manner that simulates the human digestive system with three 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 high fat (>5%) and high protein (>20%) samples. Indicate whether the sample contains fructans (inulin or fructooligosaccarides (FOS)) or psyllium, flax and gum (i.e., guar gum).
Additional Information:
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 Rapid Integrated method.
Please include notification for samples containing DP2 and DP3 carbohydrates (Isomalto-oligosaccharides (IMO), Maltiltol, Lactose).
Dietary Fiber is the portion of the carbohydrates not digested in the human gut. It is composed of both soluble and insoluble components. High-fat (>5%) and high-protein (>20%, depending on matrix) samples require special handling.
Contact Us:
If you have questions about our testing services, please contact us at +1 (800) 245-5615.