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Resistant Starch Test

  • Price

    $275 per analysis

  • Turnaround time

    7 - 9 Business Days

  • Rush

    Not Available

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Resistant Starch Test

Technical data sheet


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%



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.

*Prices and offerings are subject to change without notice.

Common Resistant Starch Test Testing Questions

While our sales and customer service team are happy to answer general testing questions, consultations typically start at a rate of $250 per 30 minutes regarding the interpretation of reported test results or questions about our test methods. We cannot consult on regulations, tolerance limits, or claims.

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.

Medallion Labs, a division of General Mills, offers multiple areas of expertise for analytical testing and product evaluation for the food and ingredient industry. Our areas of expertise include Chemical Analysis, Nutritional Analysis, Food Safety, Shelf Life Studies, Microbiology, Specialty Fibers, Physical Testing, Allergen Testing, as well as Product Evaluation (which includes Product Performance and Sensory Evaluation) and Technical Consulting/Method Development. Our methods are developed for the testing of food products and ingredients.

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Medallion Labs

A food testing program designed with mid-market and enterprise food and ingredient manufacturers in mind.