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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Text (Solvent free acetylation of Sago starch)
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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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