Karakteristik senyawa antibakteri ekstrak daun jati (Tectona grandis L.)

Esther, Fiammeta (2017) Karakteristik senyawa antibakteri ekstrak daun jati (Tectona grandis L.). Bachelor thesis, Universitas Pelita Harapan.

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Abstract

Previous study had shown that teak leaves have antibacterial compounds such as flavonoid, fenolic, tannin, and quinnones. The purposes of this research was to determine the inhibitory of those antibacterial compounds in teak leaves extract through well-diffusion method for pathogenic bacteria such as Bacillus subtilis, Staphylococcus aureus, Pseudomonas aeruginosa, and Escherichia coli. Teak leaves extract was concentrated to 5, 10, 15, 20, and 25% for the well-diffusion method. The selected extract concentration was proceeded to the stability test toward pH, salt, sugar, and heat. In addition, toxicity test was also performed to the selected teak leaves extract. The results showed that teak leaves extract could inhibit the growth of the bacteria by the presence of inhibitory diameter, Bacillus subtilis (12.03±1.220mm to 16.91±0.707mm), Staphylococcus aureus (12.76±1.529mm to 18.34±0.884mm), Pseudomonas aeruginosa (11.93±0.345mm to 16.79±0.115mm), and Escherichia coli (10.64±0.371mm to 18.19±0.168mm). However, the stability of the extract is not too stable that is indicated from the decreased inhibitory diameter. The result of toxicity test of the teak leaves extract is slightly toxic.

Item Type: Thesis (Bachelor)
Creators:
CreatorsNIMEmail
Esther, FiammetaNIM1305003142UNSPECIFIED
Contributors:
ContributionContributorsNIDN/NIDKEmail
Thesis advisorParhusip, Adolf Jan NexsonNIDN0107016701UNSPECIFIED
Uncontrolled Keywords: antibacterial compounds; pathogenic bacteria; stability; teak leaves extract; well-diffusion
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: Users 15 not found.
Date Deposited: 16 Oct 2018 07:41
Last Modified: 14 Oct 2020 05:27
URI: http://repository.uph.edu/id/eprint/1373

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