Pemanfaatan pati biji durian ( durio zibethinus l.) dengan penambahan kitosan-gelatin sebagai filler dalam pembuatan bioplastik = Utilization of durian seed starch (durio zibethinus l.) with addition of chitosan-gelatin as filler in making bioplastic

Helen, Helen (2015) Pemanfaatan pati biji durian ( durio zibethinus l.) dengan penambahan kitosan-gelatin sebagai filler dalam pembuatan bioplastik = Utilization of durian seed starch (durio zibethinus l.) with addition of chitosan-gelatin as filler in making bioplastic. Bachelor thesis, Universitas Pelita Harapan.

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Abstract

Bioplastic from LDPE and durian seed starch has lack physicochemical properties compared with bioplastic from LDPE and sago starch. Addition of chitosan-gelatin in bioplastic has potential to improve physicochemical properties and biodegradation degree of bioplastic. This research was aim to investigate the effect from addition of chitosan-gelatin to physicochemical properties and biodegradation degree of bioplastic. Bioplastic LDPE were made with variation of durian seed starch concentration (10%, 30%, 50%) and ratio between starch and chitosan-gelatin (1:1) concentration (100:0, 75:25, 50:50). Bioplastic were buried in soil for 5 weeks. The weight measurement and mechanical properties of bioplastic, soil’s pH value, and evolution of CO2 were observed every week. Bioplastic with 10% concentration of durian seed starch show the highest value of tensile strength, with result 0.102±0.003 MPa and bioplastic with 10% concentration of durian seed starch and 0% of chitosan-gelatin show the highest value of elongation at break 23.657±8.03%. The highest value of Modulus Young was showed from bioplastic with 50% concentration of durian seed starch, with result 8.443±1.13 N/mm2. The highest biodegradation degree is bioplastic with 50% concentration of durian seed starch and 50% of chitosan-gelatin, with percentage of loss weight 35.453±11.80%. The addition of chitosan-gelatin does not impact on tensile strength and Modulus Young of bioplastic, but can decrease elongation at break and improve biodegradation degree of bioplastic.

Item Type: Thesis (Bachelor)
Creators:
CreatorsNIMEmail
Helen, HelenUNSPECIFIEDUNSPECIFIED
Contributors:
ContributionContributorsNIDN/NIDKEmail
Thesis advisorCornelia, MelanieUNSPECIFIEDUNSPECIFIED
Thesis advisorNatania, NataniaUNSPECIFIEDUNSPECIFIED
Uncontrolled Keywords: biodegradation ; bioplastic ; chitosan ; durian seed starch ; gelatin
Subjects: T Technology > TP Chemical technology > TP368-456 Food processing and manufacture
Divisions: University Subject > Current > Faculty/School - UPH Karawaci > Faculty of Science and Technology > Food Technology
Current > Faculty/School - UPH Karawaci > Faculty of Science and Technology > Food Technology
Depositing User: Mrs Marselita Harapan
Date Deposited: 16 Oct 2018 08:02
Last Modified: 16 Dec 2019 04:30
URI: http://repository.uph.edu/id/eprint/1802

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