Food Science and Technology Research
Online ISSN : 1881-3984
Print ISSN : 1344-6606
ISSN-L : 1344-6606
Original papers
Different Distributions of α-Glucosidases and Amylases in Milling Fractions of Rice Grains
Mika TSUYUKUBOTetsuya OOKURAYuka MABASHIMidori KASAI
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2010 Volume 16 Issue 6 Pages 523-530

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Abstract

The distribution of starch-degrading enzymes in dormant rice grains was investigated with specific antibodies against α-glucosidases, α-amylases, and β-amylases. The α-glucosidases were predominantly localized in the inner endosperm. The α-amylases were mainly localized in the outer layers, and the β-amylases were distributed in whole grains. We propose a model to demonstrate how these enzymes degrade starch during rice cooking.

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© 2010 by Japanese Society for Food Science and Technology
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