Englyst Starch (Glycemic Response) Test
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Price
$575 per analysis
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Turnaround time 12 - 15 Business Days
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Rush Available
Technical data sheet
Print- Method description
Sample containing starch are digested using amylase and AMG under controlled conditions (simulating human digestion). Aliquots are pulled at 20 minutes and 120 minutes, and the enzyme reaction is stopped by boiling. Glucose in both fractions is measured with GOPOD (glucose oxidase – peroxidase) on a spectrophotometer and rapidly- and slowly-digestible starch is calculated.
- Acceptable matrices
Cereals, grains, starches, flours, breads, and biscuits
- Unacceptable matrices
Products with no starch or very low starch content. Products high in sugar.
- Limit of quantitation
0.3
- Equipment
Incubator, Waterbath, Spectrophotometer
- Method reference
Englyst, H.N et al. 1992. Classification and measurement of nutritionally important starch fractions. European Journal of Clinical Nutrition. 46(suppl. 2), S33-S50 Englyst, H.N. et al. 1996 Brit J Nutr, 75, 749-755
- Reportable unit
Results G20 and G120 are unitless. G20 (Rapidly Available Glucose) G120 (Slowly Available Glucose) Total Starch (%) Moisture (%)
- Sample size requirements
50 g
- Information required by submitter
Please supply estimates
- Additional information
Moisture and Total starch testing will be run as part of completing the Englyst test. The purpose of this method is to screen food and ingredients for the purpose of optimizing a lower Glycemic Response. A human study is helpful once a low-glycemic formula is optimized for the most extensive support of claims.
Common Englyst Starch (Glycemic Response) 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.
The Englyst Starch test is often considered an in-vitro version of the Glycemic Index test. A Glycemic Index test would use human subjects to measure the effects of a food product on blood sugar levels. There isn't necessarily a direct conversion between the Englyst Starch test vs. Glycemic Index.
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