TY - JOUR
T1 - Characterization of non-solvent precipitated starch using asymmetrical flow field-flow fractionation coupled with multiple detectors
AU - Fuentes, Catalina
AU - Saari, Hisfazilah
AU - Choi, Jaeyeong
AU - Lee, Seungho
AU - Sjöö, Malin
AU - Wahlgren, Marie
AU - Nilsson, Lars
N1 - Publisher Copyright:
© 2018 Elsevier Ltd
PY - 2019/2/15
Y1 - 2019/2/15
N2 - 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 (ρapp) 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 Mw (1.8–9.4 g/mol) and rrms (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).
AB - 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 (ρapp) 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 Mw (1.8–9.4 g/mol) and rrms (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).
KW - Asymmetrical flow field-flow fractionation
KW - Non-solvent precipitated starch
KW - Waxy maize
UR - http://www.scopus.com/inward/record.url?scp=85056199089&partnerID=8YFLogxK
U2 - 10.1016/j.carbpol.2018.10.100
DO - 10.1016/j.carbpol.2018.10.100
M3 - Artículo
C2 - 30553314
AN - SCOPUS:85056199089
SN - 0144-8617
VL - 206
SP - 21
EP - 28
JO - Carbohydrate Polymers
JF - Carbohydrate Polymers
ER -