Establishment of Viscosity Measuring Conditions and Threshold Values for Identifying Irradiated Starches
2004
An, K.A. (Korea Food and Drug Administration, Seoul, Republic of Korea) | Kim, H.K. (Korea Food Research Institute, Sungnam, Republic of Korea) | Kwon, J.H. (Kyungpook National University, Daegu, Republic of Korea), E-mail: [email protected] | Choi, J.D. (Korea Food and Drug Administration, Seoul, Republic of Korea)
Viscometry was applied to identify irradiated corn starch (CS), sweet potato atarch (SS), and potato starch (PS) from non-irradiated controls using Brookfied DV-III programmable rheometer. Effects of starch suspension concentration (7.0-9.5%) and spindle speed (25-125 rpm) were investigated. Established optimal viscosity-measuring conditions showed the highest correlation coefficient between irradiation dose (0-6.0 kGy) and corresponding wiscosities for CS, SS, and PS.
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