Effect of the Botanical Origin on Properties of RS3/4 Type Resistant Starch

Autor: Aleksandra Wilczak, Małgorzata Kapelko-Żeberska, Artur Gryszkin, Radosław Spychaj, Tomasz Zięba, Bartosz Raszewski
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Polymers
Volume 11
Issue 1
Polymers, Vol 11, Iss 1, p 81 (2019)
ISSN: 2073-4360
Popis: This study aimed to compare properties of retrograded starch acetates with an identical degree of substitution, but produced from raw materials of various botanical origin. Retrograded starch was produced from potato, wheat, corn, and tapioca starch, and afterwards acetylated with an acetic acid anhydride, adjusting reagent doses to achieve an identical degree of esterification of the modified preparation (2.1 g/100 g). Preparations of retrograded starch and acetylated retrograded starch differed significantly in their properties, which was due to the disparate botanical origin of starch. The highest susceptibility to acetylation was demonstrated for potato starch, and the lowest one for wheat starch. Acetylation of retrograded starch of various botanical origin increased its solubility in water, swelling power and viscosity of its pastes, as well as decreased its amylose content. Preparations of acetylated retrograded starches of disparate botanical origins may be deemed preparations of RS3/4 type resistant starch because they exhibit significant (23.5&ndash
34.0%) resistance to the activity of amylolytic enzymes.
Databáze: OpenAIRE
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