Solvent free acetylation of Sago starch

Ayucitra, Aning and Soetaredjo, Felycia Edi (2012) Solvent free acetylation of Sago starch. In: Proceeding of 19th ASEAN Regional Symposium on Chemical Engineering (RSCE) 2012, , 7-8 Nov 2012, Bali.

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Abstract

Starch is the major carbohydrate in a normal diet. Acetic anhydride and acetic acid were used to modify sago starch. The solvent free acetylation was conducted using the process of microwave radiation heating. Iodine served as a catalyst and had a greater influence on the degree of substitution (DS) of sago starch acetate than did the acetylation reagents. As the DS increased, the thermal properties (HG and Tp) of sago starch acetate significantly reduced. Scanning electron micrographs confirmed that the alteration of the initial morphology of sago starch became more evident as DS increased.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Sago starch acetate, degree of substitution, thermal properties, surface morphology.
Subjects: Engineering > Chemical Engineering
Divisions: Proceeding
Depositing User: F.X. Hadi
Date Deposited: 29 Nov 2023 02:47
Last Modified: 29 Nov 2023 02:47
URI: https://repository.ukwms.ac.id/id/eprint/37453

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