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All Journal Jurnal Kartika Kimia Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences
Hernandi Sujono
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Religion Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Economics, Econometrics & Finance Education Social Sciences

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Antibacterial Activity of the Essential Oil from Betel leaf (Piper betle L.) against Streptococcus pyogenes and Staphylococcus aureus Hernandi Sujono; Samsu Rizal; Sari Purbaya; Jasmansyah Jasmansyah
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 (326.319 KB) | DOI: 10.26874/jkk.v2i1.27

Abstract

Betel leaf (Piper betle L) is a medicinal plant. Its essential oil has antibacterial activity of phenolic compounds and theirs derivatives that can inhibit a wide range of bacteria. Streptococcus pyogenes and Staphylococcus aureus is a bacteria that can cause strep throat (pharyngitis). This study was conducted to determine how to obtain the essential oil of Betel leaf green (Piper betle L.) using steam-water distillation method and determine the antibacterial activity of essential oils of betel leaf (Piper betle L.) against the bacteria Streptococcus pyogenes and Staphylococcus aureus using wells method. Betel leaf 5 kg isolated using steam-water distillation of essential oils produces as much as 9 mL, yield of 0.135%, a specific gravity of 0.750 g / mL, and the refractive index of 1.337. The results of GC-MS analysis of betel leaf green essential oil obtained 10 Most compounds are compounds chavicol, eugenol, germacrene D, caryophyllen, eugenol acetate, 2-allyphenol, β-chamigrene, α-cadinene, terpineol, and α-humulene. Based on the test results of the antibacterial activity of betel leaf that the essential oil of betel leaf green (Piper betle L) at the concentration of 10%, 20%, 30%, and 40% can inhibit the bacteria Streptococcus pyogenes and Staphylococcus aureus, the category of barriers weak to moderate for bacteria Streptococcus pyogenes and weak to strong resistance categories for Staphylococcus aureus bacteria.
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
The Effect of Product Image and Website Quality on the E-Purchase Decision through Website Experience Hernandi Sujono; Ratih Hurriyati; Lili Adi Wibowo; Heny Hendrayati
Budapest International Research and Critics Institute-Journal (BIRCI-Journal) Vol 5, No 3 (2022): Budapest International Research and Critics Institute August
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birci.v5i3.6590

Abstract

In the globalization era or the 4.0 era, all activities that used to be done offline can now be completed online using the internet network. Likewise with buying and selling activities, openness, and Internet connectivity, with online media, one of which is the website. Therefore, the research objectives are to analyze the effect of the product image and website quality on online purchasing decisions; the impact of the product image and website quality on user experience (web experience); the effect of user experience (web experience) on online purchasing decisions at a Parfume Online Store. This research is a quantitative study, an inferential statistical study that takes a certain number of samples to explain the population. By collaborating with the Parfume Online Store for data collection, it is targeted that at least 100 responses are collected from online questionnaires and analyzed by structural equation modeling with Partial Least Square (PLS) software used as a tool to assist procedures. After all, the conclusions of this study are: 1) Product Image's significant positive effect on E-Purchase Decision, 2) Product Image's significant positive effect on Web Experience, 3) Web Experience's significant positive effect on E-Purchase Decision, 4) Web Quality's significant positive effect on E- Purchase Decision, 5) Web Quality's significant positive effect on Web Experience, 6) Product Image's significant positive effect on E-Purchase Decision, 7) Web Quality's significant positive effect on E-Purchase Decision Variables.
Co-Authors Heny Hendrayati Jasmansyah Jasmansyah Lili Adi Wibowo Lilis Siti Aisyah Pipit Fitriyani Ratih Hurriyati Samsu Rizal Sari Purbaya