Setiawan, Giovani Fransisca (2019) Characterization of Antimicrobial Edible Films with Single and Double Emulsions From Clove (Syzygium Aromaticum) Oil. Bachelor thesis, Universitas Pelita Harapan.
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Abstract
Clove oil as a potent antimicrobial agent was added to enhance the properties of edible films. Clove oil however, needs to be converted to emulsions for homogenous dispersion in edible film suspension. Single and double emulsion of clove oil was made to incorporate the non-polar clove oil into a polar starch-based edible films. Double emulsion was made with two steps emulsification with CaCl2 as inner water phase and guar gum as outer water phase. Single emulsion was prepared similarly without inner water phase. The physicochemical characteristics of both emulsion and the antimicrobial activity of the of starch-based edible film added with the emulsion were observed. MBC/MFC of clove oil was determined against E. coli, S. aureus, R. stolonifer, and A. niger having value of 1.95, 1.46, 0.52, and 0.35 mg/ml respectively. Droplet size, viscosity, and stability of emulsions were analyzed. Double emulsion possessed bigger droplet size, less viscosity and both emulsions were stable. Different concentrations (5%,10%,15%) of both emulsions were added into edible film suspension. Different type of emulsions did not significantly (p>0.05) influence thickness, water vapor transmission rate and swelling index value. However, double emulsion gave significantly (p<0.05) less opaque films with higher tensile strength, lower percentage of elongation, and higher antimicrobial activity againts tested microbes.
Item Type: | Thesis (Bachelor) |
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Creators: | Creators NIM Email ORCID Setiawan, Giovani Fransisca NIM00000005021 giovanifransisca97@gmail.com UNSPECIFIED |
Contributors: | Contribution Contributors NIDN/NIDK Email Thesis advisor Natania, Natania NIDN0313098401 UNSPECIFIED |
Additional Information: | SK 34-14 SET c 2019 ; 31001000242595 |
Uncontrolled Keywords: | Antimicrobial; clove oil; double emulsion; edible films; single emulsion |
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: | Nicholas Sio Pradiva |
Date Deposited: | 21 Oct 2021 07:59 |
Last Modified: | 13 May 2024 08:04 |
URI: | http://repository.uph.edu/id/eprint/42774 |