The invention discloses a method for detecting
amylose content in glutinous
rice flour. The method comprises the steps of: firstly, according to Chinese
national standard Determination of
Amylose in Grains of Rice, Maize and Millet, selecting standard glutinous
rice flour with
amylose content being distributed in a gradient as control samples; soaking a to-be-detected sample in water for 3-6 hours, then
fishing out the sample, draining off water, and
drying the sample in a dryer until the
water content becomes 12%;
grinding dried glutinous rice into flour, refrigerating the flour in
refrigeration equipment for 5 hours at the temperature of minus 5 DEG C, and secondarily
drying the flour in the drier until the
water content becomes 10%, thereby obtaining to-be-detected glutinous
rice flour; sufficiently
dyeing the to-be-detected glutinous rice flour and the control samples with an I2-KI solution, wherein the
dyeing degrees of the different control samples change in a gradient type due to the different mylose contents; comparing the
dyeing degree of the to-be-detected glutinous rice flour with the dyeing degrees of the control samples, and getting an average value if the dyeing degree of the to-be-detected glutinous rice flour is between the dyeing degrees of two control samples, thus judging the
amylose content. The result detected by the method is easy to judge and the obtained information is correct and reliable.