Starch granules of mungbean observed by microscope and scanning microscope were oval or round, 8¡13¥ì wide, and 18¡30§ long. X-ray diffraction of the starch granules resulted weak crystallinity at 2¥è 16.9¡Æ. The blue value of the starch was 0.36, amylose content 22.7%, alkali number 8.52, ferricyanide number 1.06, and water binding capacity of 81.6%. Swelling of the starch was negligible until 50¡É, thereafter it increased rapidly. Optical transmittance of 0.3% starch suspension was increased rapidly from 65¡É and the gelatinization at 65¡90¡É was of single stage. Amylogram patterns of the 6.7 and 8% starch solution were similar with no peak viscosity. The time constant for retrogradation of 40% starch gel stored at 21¡É was 1.99 days.
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