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  • Title: Characterization of modified high-amylose maize starch-α-naphthol complexes and their influence on rheological properties of wheat starch.
    Author: Zhu F, Wang YJ.
    Journal: Food Chem; 2013 May 01; 138(1):256-62. PubMed ID: 23265485.
    Abstract:
    Amylose can form inclusion complexes with diverse small molecules. Modified starch has different and unique properties compared with its native counterpart. In this study, chemically/enzymatically modified high-amylose maize starches were used to make inclusion complexes with α-naphthol, and the physical properties of complexes and their influences on the rheology of wheat starch were characterized. The results showed that modification of starch had little influence on the wide angle X-ray diffraction pattern of complex (eightfold single helix), but did so on the complexation index and precipitation yield. Inclusion complexes with chemically modified starch showed a lower range of thermostability and recrystallization temperatures. Addition of complex considerably influenced the rheological properties of wheat starch, and the effect was dependent on the type of modified starch used. It may be concluded that starch inclusion complexes, with a range of properties and potential food applications, may be feasibly prepared by using diverse modified high-amylose maize starches.
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