*Price of the test:
$255 per analysis
Grains, flours, rice, starches
Samples low in starch
5% – 95% Amylose
Sample Size Requirements:
Amylose % of Total Starch
Amylopectin % of Total Starch
7 – 9 Business Days
Is rush testing available?
The sample is completely solubilized by DMSO and fats removed by an alcohol precipitation of the starch. Upon further solubilization and dilution of the sample with acetate buffer, the amylopectin is removed by precipitation with a Concanavilin A. The amount of amylose in the sample is quantified by the conversion of glucose with specific enzymes and measured using a GOPOD reaction. A portion of the sample, prior to the addition of Concanavilin A, is quantified in the same manner yielding the amount of total starch.
Amylose is determined by a ratio of amylose to total starch. Amylopectin is determined by difference, where together they equal 100%.
If you are unable to provide an estimate, a complete sample description is helpful.
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.