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Fuentes, Catalina,Saari, Hisfazilah,Choi, Jaeyeong,Lee, Seungho,Sjö,ö,, Malin,Wahlgren, Marie,Nilsson, Lars Applied Science Publishers 2019 Carbohydrate polymers Vol.206 No.-
<P><B>Abstract</B></P> <P>Non-solvent precipitated starch (non-SPS) is a novel component for starch-based emulsions. Herein, three non-SPS materials were prepared using ethanol as a precipitant of waxy maize starch granules (WMs). The WMs were either untreated (SP) or pre-treated via acid-hydrolysis (AHSP). In addition, SP was modified using n-octenyl succinic anhydride (OSA), yielding OSASP. This study aimed to investigate the influence of the non-SPS preparation method on the size, molar mass (M), and apparent density (ρ<SUB>app</SUB>) of the materials when subjected to different dissolution/dispersion procedures using asymmetrical flow field-flow fractionation (AF4). The results showed that the molar mass, size, and apparent density depended on the type of non-SPS with a decrease in M<SUB>w</SUB> (1.8–9.4 g/mol) and r<SUB>rms</SUB> (60–148 nm) upon re-dispersion in different media in the order: SP > OSASP > AHSP. Moreover, different types of non-SPS materials displayed different conformational properties and were stable in aqueous solution at room temperature in the investigated time (24 h).</P> <P><B>Highlights</B></P> <P> <UL> <LI> Non-solvent precipitated starch (non-SPS) is obtained from waxy maize starch. </LI> <LI> Precipitated starch properties after re-dispersion depend on the preparation method. </LI> <LI> Precipitated starch has an amorphous structure. </LI> <LI> Re-dispersion at room temperature can lead to dissolution of starch precipitates. </LI> <LI> Size, molar mass, apparent density, and conformational properties are determined. </LI> </UL> </P>