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Publisher DOI: 10.1007/s00396-020-04616-5
Title: Production of starch aerogel in form of monoliths and microparticles
Language: English
Authors: Baudron, Victor 
Taboada, Martha 
Gurikov, Pavel 
Smirnova, Irina 
Whitehouse, Steve 
Keywords: Aerogel;Amylomaize;Emulsion;Gelation;Pasting;Pea;Rheometry;Starch
Issue Date: 16-Mar-2020
Publisher: Springer
Source: Colloid and Polymer Science 4-5 (298): 477-494 (2020-05-01)
Journal or Series Name: Colloid & polymer science 
Abstract (english): Pea and amylomaize starches were used to produce aerogel in form of monoliths and microparticles. The formation of starch gel was investigated, and we showed that each starch needed a different pasting temperature for its complete dissolution. The gelation kinetics was investigated with oscillatory rheometry for both systems as a function of the starch concentration. The gelation and retrogradation temperature of the starch gel were varied and its impact on the final aerogel evaluated. The emulsion gelation was carried out batch wise in a stirred vessel with different impeller geometries, concentrations of surfactant (Span80 and PGPR) and stirring rates. A particle size prediction approach based on idealized flow (Couette, 2D hyperbolic and turbulent) during the emulsification was proposed. A semi-continuous set-up for the emulsion gelation was developed in which the emulsification occurs in a single pass through a colloid mill and the gelation is triggered in-line with a counter-current heat exchanger. [Figure not available: see fulltext.]
DOI: 10.15480/882.2754
ISSN: 1435-1536
Institute: Thermische Verfahrenstechnik V-8 
Type: (wissenschaftlicher) Artikel
Funded by: Nestlé Product Technology Centre York for the financial support.
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