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PENGARUH KONSENTRASI CAMPURAN EKSTRAK KUNYIT (Curcuma domestica Val) DAN KENCUR (Kaempferia galanga L) TERHADAP ZONA HAMBAT BAKTERI Shigella dysentriae SEBAGAI BAHAN PENYUSUNAN LEAFLET MATERI SISTEM PENCERNAAN DI SMA

Ermayanti, Wiwid (2018) PENGARUH KONSENTRASI CAMPURAN EKSTRAK KUNYIT (Curcuma domestica Val) DAN KENCUR (Kaempferia galanga L) TERHADAP ZONA HAMBAT BAKTERI Shigella dysentriae SEBAGAI BAHAN PENYUSUNAN LEAFLET MATERI SISTEM PENCERNAAN DI SMA. Undergraduate (S1) thesis, University of Muhammadiyah Malang.

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Abstract

Turmeric (Curcuma domestica Val) and kencur (Caempferia galanga L) is one of the plants that used for traditional medicine by our ancestors for a long time. This plant is a shrub and annually, which scattered in the tropics and sub tropics. Curcumin is a phenolic compound. This phenol derivative will interact with the bacterial cell wall, subsequently absorbed and penetrated into the bacterial cell, causing precipitation and protein denaturation, resulting lysation of the bacterial cell membrane. Meanwhile antibacterial activity such as curcumin gives effect to bactery by inhibiting the proliferation of bacterial cells. The purpose of this study was to determine the effect of turmeric extract (Curcuma domestica Val.) and kencur (Caempferia galanga L) at various concentrations on the inhibition zone of some bacteria that cause dysentery. The type of research was True Experimental Research by using Factorial Design. The dependent and independent variable testing of this research were performed on experimental group and control group samples, where the subjects studied in both groups which were drawn randomly. This research uses Factorial Design, which is a modification of true experimental design by considering the possibility of a moderator variable affecting treatment (independent variable) to the results (dependent variable). The concentration of extract used in this research is 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95%, and 100%. The results showed that there was an effect of concentration of turmeric and kencur extract on the bacteria that cause dysentery. Based on the interaction treatment, it is known that the average diameter of the lowest inhibition zone is found in the interaction of turmeric and kencur extract of 60% concentration of. This treatment was not significantly different with the treatment of turmeric and kencur 95% and 70%. While the highest average of the inhibit zone is the interaction of turmeric and kencur at 100% concentration, but this treatment is not significantly different with the interaction treatment of turmeric and kencur extract 45%, which means both the concentration of 45% and 100% have the same effect, but because the concentration of 100% produces a larger inhibition zone then it can be stated that 100% concentration of turmeric extract kencur is the most effective treatment.

Item Type: Thesis (Undergraduate (S1))
Student ID: 201310070311034
Keywords: Campuran ekstrak kunyit & kencur, Shigella dysentriae, Zona Hambat
Subjects: Q Science > QH Natural history > QH301 Biology
Divisions: Faculty of Teacher Training and Education > Department of Biology Education (84205)
Depositing User: Sulistyaningsih Sulistyaningsih
Date Deposited: 17 Oct 2018 08:58
Last Modified: 17 Oct 2018 08:58
URI : http://eprints.umm.ac.id/id/eprint/38008

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