Resistant Starch Test
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Price
$275 per analysis
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Turnaround time 7 - 9 Business Days
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Rush Not Available
Technical data sheet
Print- Method description
Samples are incubated with pancreatic a-amylase and amyloglucosidase (AMG) and further treated to remove the nonresistant starch. The resistant starch is then dissolved in KOH, neutralized with acetate buffer, and is quantitatively hydrolyzed to glucose with AMG. Glucose is measured with glucose oxidase/peroxidase reagent (GOP) on a spectrophotometer. The absorbance of this solution at 510 nm is proportional to the resistant starch content of the sample.
- Acceptable matrices
Plant and starch materials.
- Unacceptable matrices
Matrices that have the potential to gelatinize in the presence of water (i.e. high concentrations of psyllium or konjac).
- Limit of quantitation
2% to 64%
- Equipment
Spectrophotometer
- Method reference
AOAC 2002.02
- Reportable unit
%
- Sample size requirements
1 g
- Information required by submitter
Please supply estimates
- Additional information
This method measures RS2 (granular) and RS3 (retrograded) starches. RS1 starches are not detected by this method. Applicability of this method to RS4 (chemically-cross linked) type starches must be determined on a case-by-case basis.
Common Resistant Starch Test Testing Questions
We make every effort to keep our methods and detection limits up to date according to the latest standards and qualifications. If you have any questions regarding the limit of detection/quantification or method references, please contact our Customer Service team at 1-800-245-5615.
Our standard turnaround time is 10 business days for most assays. There are some assays that require a longer turnaround time. We also offer a RUSH service that is half the time of the standard turnaround time of the assay at double the cost of the assay. A few assays that we provide cannot be rushed due to the nature of the test. Please check the specific assay you are interested in regarding the ability to RUSH the turnaround time.
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