Comparison of Starch Composition and Pasting PropertiesBetween A and B Type Starch Granule in Wheat Grain

doi:10.7668/hbnxb.2011.01.028

Abstract

Abstract: Two types of starch granule A and B type starch granule were separated in wheat grain in this study.The starch composition contents and pasting properties in starch granules were studied and compared. The resultshowed that amylose content of A type starch granule was significantly higher than that of B type starch granule，andamylopectin content of A type starch granule was significantly lower than that of B type starch granule. Thus the ratioof amylose to amylopectin of A type starch granule was high compared with B type starch granule. RVA parametersincluding peak viscosity though viscosity breakdown peak time and pasting temperature of B type starch granulewere significantly higher than those of A type starch granules. These may be due to B type starch granules were well-set compared with A type starch granules.

Key words: Wheat, Starch granule, Starch, Pasting properties

CLC Number:

S512.1

LI Wen-yang, YIN Yan-ping, SHI Xia-qing, YAN Su-hui, WANG Zhen-lin. Comparison of Starch Composition and Pasting PropertiesBetween A and B Type Starch Granule in Wheat Grain[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2011, 26(1): 136-139. doi: 10.7668/hbnxb.2011.01.028.

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