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All Journal Journal of Food and Pharmaceutical Science CHEMPUBLISH JOURNAL Jurnal Kimia Mulawarman BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Jurnal Pendidikan Kimia (JPKim) Chemistry Indonesian Journal of Chemical Research Journal of Midwifery and Nursing JEDCHEM (JOURNAL EDUCATION AND CHEMISTRY) Science Midwifery Reswara: Jurnal Pengabdian Kepada Masyarakat Lumbung Farmasi : Jurnal Ilmu Kefarmasian
fahmi, Aliyah -
Faculty Of Health, Universitas Efarina, Pematang Siantar, Indonesia
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Dentistry Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Medicine & Pharmacology Nursing Public Health Social Sciences Veterinary

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Journal : Science Midwifery

 1 
The Antibacterial Activity Test Comparison of Green and Black Tea Ethanol Extract (Camellia sinensis) Against Propionibacterium acnes Aliyah Fahmi; Sumaryati Syukur; Zulkarnain Chaidir; Sri Melia
Science Midwifery Vol 10 No 2 (2022): April: Science Midwifery
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/midwifery.v10i2.544

Abstract

A study was conducted in connection with the comparison of antibacterial activity tests between ethanol extracts from green tea leaves and black tea leaves (Camellia sinensis) against Propionibacterium acnes. There were obtained by a softening technique that was softened for 24 hours. The filtrate was then concentrated to give a concentrated extract and evaporated ethanol content. The concentrated extract was then diluted with distilled water to extract 5%, 10%, and 15% concentration variations. The test method for inhibitory activity was the disc method using distilled water as a negative blank. The results obtained with blank, 5%, 10% and 15% green tea were 0. 5.25; 7.05 and 7.95 mm and black tea ethanol extract were 0; 2.50; 3.20 and 5.30 mm. The conclusion of this study is that the concentration of the extract is directly proportional to its inhibitory power, and the green tea ethanol extract is more potent than the black tea ethanol extract, so both can be used as antibacterial agents against P. acnes.
The Inhibitory Activity Test of Green Tea Ethanol Extract (Camellia sinensis) Sidamanik Against Escherichia coli Aliyah Fahmi; Sumaryati Syukur; Zulkarnain Khaidir
Science Midwifery Vol 10 No 2 (2022): April: Science Midwifery
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

A study was done in analyzing the inhibitory activity of green tea ethanol extracts against Escherichia coli. The green tea is sourced from a tea plantation in Sidamanik, North Sumatra. The green tea was macerated with ethanol 96 % for 24 hours. After that, the filtrate was taken and then concentrated to give a concentrated extract and evaporated ethanol content until run out and obtained thick extract. The thick extract was then diluted with distilled water to extract 5%, 10%, and 15% concentration variations. The test method for inhibitory activity was the disc method using distilled water as a negative blank. The results obtained with blank, 5%, 10% and 15% green tea were 0. 5.7; 7.10, and 8.05 mm The conclusion of this study is that the concentration of the extract is directly proportional to its inhibitory power, and can be used as an antibacterial agent against E. coli.
Co-Authors Hamela Sari Sitompul Hamidah Harahap, Hamidah Hamonangan Nainggolan Iriani Iriani Melia, Sri Melia, Sri N, Hamonangan NST, Rumondang Bulan Nurdin, Ahmad Rumondang Bulan Nst Sitompul, Hamela Sumaryati Syukur Zulkarnain Chaidir Zulkarnain Khaidir