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All Journal Jurnal Kartika Kimia
Lilis Siti Aisyah
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education

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Isolation and Antibacterial Activity of Phenol Compounds of Ethyl Acetic Extract of Red Zinger (Zingiber officinale Roscoe var. sunti) Lilis Siti Aisyah; Jasmansyah Jasmansyah; Sari Purbaya; Temi Resnawati
Jurnal Kartika Kimia Vol 2 No 1 (2019): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, Jenderal Achmad Yani University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (321.69 KB) | DOI: 10.26874/jkk.v2i1.23

Abstract

In the treatment of infectious diseases, one of the serious problems faced is the occurrence of bacterial resistance to the antibiotics used. The search for new antimicrobial compounds is one of the important research activities, because of the background of the development of resistant bacterial populations. In line with this, the development of new drugs is needed to replace drugs that become resistant. This study aimed to isolate phenol compounds from the ethyl acetate extract of red ginger rhizome (Z. officinale Roscoe var. Sunti), and analyze the results of isolation using UV and FTIR spectrophotometers and test the antibacterial activity of phenol compounds to Escherichia coli and Staphylococcus aureus. The isolation stage was started by macerating the powder with n-hexane solvent then continued maceration using ethyl acetate solvents. After that the ethyl acetate extract was carried out by separation and purification of the compound using the vacuum liquid chromatography (VLC), guided gravity chromatography with thin layer chromatography (TLC) and also preparative thin layer chromatography (PTLC). From the isolation results obtained pure isolates, purity test, measurement using UV and IR spectrophotometers, and antibacterial activity tests. From the results of UV and FTIR analysis, it was concluded that the compounds obtained were groups of phenol compounds, in the form of yellow solids and showed the existence of a double bond system conjugated in the presence of –OH, C = O, C = C and –CH aromatic groups. Antibacterial activity test showed that the minimum inhibitory concentration (MIC) of Escherichia coli bacteria was 12.5% with a minimum kill concentration (MBC) of 50%, whereas for Staphylococcus aureus bacteria showed that the minimum inhibitory concentration (MIC) was 6.3% and minimum kill concentration (MBC) of 25%.
Antimicrobial Activity of Essential Oil from Centella asiatica (L.) Urb Plant Jasmansyah Jasmansyah; Pipit Fitriyani; Hernandi Sujono; Lilis Siti Aisyah
Jurnal Kartika Kimia Vol 3 No 1 (2020): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, Jenderal Achmad Yani University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (252.273 KB) | DOI: 10.26874/jkk.v3i1.54

Abstract

Pegagan (Centella asiatica (L.) Urb) merupakan salah satu tanaman obat yang memiliki khasiat seperti mengatasi demam, antialergi, anti inflamasi, dan stimulan sistem syaraf pusat. Kandungan senyawa kimia yang terdapat dalam minyak atsiri tanaman pegagan (C. asiatica) diketahui berperan sebagai antibakteri. Penelitian ini adalah untuk mengetahui aktivitas antimikroba dari minyak atsiri tanaman pegagan (C.asiatica) terhadap pertumbuhan bakteri Staphylococcus epidermidis, Pseudomonas aeruginosa, dan jamur Candida albicans. Metode yang digunakan metode destilasi uap-air, hasil destilat dilakukan uji Gas Chromatography – Mass Spectrometry dan aktivitas antimikroba dengan metode mikrodilusi. Hasil penelitian menunjukkan bahwa rendemen minyak sebesar 0,01% dan dengan 37 komponen senyawa, 5 komponen senyawa utama dengan konsentrasi tertinggi yaitu (E)-β-farnesen (17,85%), Kariofilen (13,55%), Germacrene-D (9,61%), α-Humulene (9,54%), β-Elemen (7,80%). Hasil uji aktivitas antimikroba minyak atsiri tanaman pegagan terhadap bakteri S.epidermidis dengan KHM dan KBM ≤ 0,2 %, bakteri P.aeruginosa dengan nilai KHM dan KBM berturut-turut sebesar 50 % dan 100% dan jamur C.albicans dengan nilai KHM dan KBM 100 %. Hasil menunjukkan bahwa minyak atsiri tanaman pegagan lebih berpengaruh dan berpotensi dalam menghambat pertumbuhan bakteri Gram positif dibandingkan dengan perhambatan terhadap bakteri Gram negatif dan jamur. Kata Kunci : Centella asiatica (L.) Urb, Minyak Atsiri, Antimikroba
Co-Authors Hernandi Sujono Jasmansyah Jasmansyah Pipit Fitriyani Sari Purbaya Temi Resnawati