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Jiang, Yang; Du, Jinhua; Zhang, Liguo; Li, Wenqian
Carbohydrate polymers, 10/2018, Volume: 197Journal Article
Display omitted •Properties of FHP and SHP was comparatively investigated.•A comprehensive exploration on rheological properties has been performed.•FHP exhibited more elastic characteristics, while its DE and Mw were both lower. To investigate the characteristics of the pectins from fermented and steeped hawthorn wine pomace (FHP and SHP), they were acid-extracted, respectively, and compared detailedly. The results of esterification degree indicated that these two pectins were both defined as high methoxyl pectin, which was confirmed by Fourier transform infrared spectroscopy analysis. Molecular weight of SHP was higher than that of FHP. Differential scanning calorimetry analysis showed that the melt temperature of SHP was lower than that of FHP, and the molecular arrangement of SHP is more orderly than FHP. FHP and SHP solutions exhibited shear-thinning properties but SHP had a stronger anti-shear ability. FHP tended to be more elastic-solid as the concentration increased, which was not prominent in SHP. This study suggested that FHP and SHP powder could be new sources of pectin and both pectins could be potentially used as a thicker and stabilizer in food processing.
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