Modification of (Dioscorea alata l) starch with propylene oxide to make edible film (ARTIKEL)

Herlina, Herlina (2023) Modification of (Dioscorea alata l) starch with propylene oxide to make edible film (ARTIKEL). Science and Technology Indonesia, 2 (4). pp. 96-101. ISSN 2580-4391

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Abstract

The research about modification uwi starch (Dioscorea alata L) by using propylene oxide has been done. Concentration of propylene oxide were 6%(v/w), 8%(v/w), and 10%(v/w). The amilograf parameter after modification were characteristic breakdown viscosity 43 BU and setback viscosity 975 BU. The modification starch has edible properties according to FDA (food and drug administration) which have degree of modification < 7%, degree of substitution < 0,1 and propylene oxide concentration < 10%(v/w). The best propylene oxide in making of edible film was 8 %( v/w). The starch control can be made into edible film with thickness 0,136 mm, tensile strength 20,4605 MPa and elongation 22%. Modification starch of uwi can be made into edible film with thickness 0,146 mm, tensile strength 25, 3521 Mpa, elongation 30% and water vapor transmission 7, 2651 g/m2 /24 hours. FTIR characterization of uwi starch showed the occurrence of hydroxypropylation. The peak spectrum at 2900 cm-1 showed bonding of C-H from methyl group, which is characteristic for modification starch with hydroxypropyl. Characterization with scanning electron microscopy showed that modification of uwi starch has turned the granule of starch to be fully swallon.

Item Type:	Article
Subjects:	R Medicine > RS Pharmacy and materia medica > RS160-167 Pharmacognosy. Pharmaceutical substances (Plant, animal, and inorganic) R Medicine > RS Pharmacy and materia medica > RS192-199 Pharmaceutical technology
Divisions:	08-Faculty of Mathematics and Natural Science > 48201-Pharmacy (S1)
Depositing User:	Herlina Herlina
Date Deposited:	16 Jun 2023 03:16
Last Modified:	16 Jun 2023 03:16
URI:	http://repository.unsri.ac.id/id/eprint/110552

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