Study on the Physichochemical Properties and Structure of Phosphate Monoester of Sweet Potato Starch

Abstract

Abstract: The physichochemical properties and structure changes of phosphate monoester of sweet potato starch esterified with orthophosphate were investigated. The results indicated that the paste clarity, solubility and swelling power of the phosphate monoesters increased dramatically. Esterization could also improve the ret-rogradation and freeze - thaw stability of native starch notably. Esterization not only occurred in the amorphous region, but also damaged the crystalline region. The infra - red spectrogram verified that after esterization new groups were added to the starch glucose units.

Key words: Sweet potato , Starch phosphate monoester, Properties , Structure

PAN Li-Jun, JIANG Shao-Tong, HE Chuan-Bo. Study on the Physichochemical Properties and Structure of Phosphate Monoester of Sweet Potato Starch[J]. FOOD SCIENCE, 2002, 23(11): 25-28.

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Study on the Physichochemical Properties and Structure of Phosphate Monoester of Sweet Potato Starch

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