Preparation of a Furunori-like polysaccharide and the similarity with structures and physical properties of Furunori
2010
Nakaura, Y., Fukuyama Univ., Hiroshima (Japan) | Nishimoto, T. | Sadamori, T. | Okura, T. | Sakamoto, K. | Chaen, H. | Fukuda, S. | Hayakawa, N. | Oka, Y. | Inouchi, N.
A Furunori-like polysaccharide was prepared from the paste of wheat starch for 2 weeks by a new method combining alpha-amylase treatment of the paste and the washing of the paste to remove low molecular-weight materials during retrogradation of the paste. Structural properties of the Furunori-like polysaccharide and Furunori samples were investigated by comparing their iodine affinity, average molecular-weight, and distributions of the unit chain-length and whole chain-length. The degree of retrogradation was also compared using the beta-amylase-pullulanase method and the X-ray diffractometer. All results of these experiments showed similarities between the Furunori-like polysaccharide and Furunori samples. Their similarity of structure and degree of retrogradation appears greatly to provide the Furunori-like polysaccharide with an adhesiveness and smoothness similar to that of the Furunori samples.
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