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All Journal Jurnal Teknologi Laboratorium Jurnal Penelitian Pendidikan IPA (JPPIPA)
Arnawa, I Gede Putu
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology Physics Other

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The potential of ethanol extract of white pomegranate leaves (Punica granatum L) as anti-bacterial Susilawati, Ni Made; Arnawa, I Gede Putu; Octrisdey, Karol; Kambuno, Norma Tiku
Jurnal Teknologi Laboratorium Vol 9 No 2 (2020): 2020 (2)
Publisher : POLTEKKES KEMENKES YOGYAKARTA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29238/teknolabjournal.v9i2.258

Abstract

Treatment of infections using penicillin-derived antibiotics such as methicillin has been found to cause antibiotic-resistant bacteria. This bacteria could produce a beta-lactamase enzyme to form a resistant strain. Research on antibacterial activity continues to develop. Pomegranate (Punica granatum L.) was one of the herbal plants whose fruit has long been used for the treatment and prevention of various diseases. This study aimed to determine the potential inhibition of white pomegranate leaf extracts (Punica granatum L.) on the growth of Gram-negative bacteria including Escherichia coli Extended-Spectrum Beta-Lactamase (ESBL) strain and Gram-positive bacteria Staphylococcus aureus Methicillin-Resistant Staphylococcus aureus (MRSA) strain. White pomegranate leaf extract macerated with ethanol 96%, evaporated to obtain pure extracts made with a concentration of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90% and with 100% tested with invitro diffusion method. It was found that the extract of white pomegranate leaves with 30% (10.00 ± 0.0) concentration was able to inhibit the growth of positive Gram bacteria strains MRSA and the extract was unable to inhibit the growth of Escherichia coli bacteria strain ESBL.
The Effectiveness of Reducing Hardness in the Filtration Process Using Mixed Media with Detention Time Variations Waangsir, Ferry WF; Arnawa, I Gede Putu; Sadukh, Johanis JP; Mauguru, Edwin M.
Jurnal Penelitian Pendidikan IPA Vol 9 No 12 (2023): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i12.5592

Abstract

The problem that is often faced in groundwater management, especially deep groundwater such as boreholes is hardness. This can happen because in the process of taking it from the soil through various layers of soil including limestone soil containing Ca and Mg, so that the water becomes hard. Hard water is found in areas where the top soil layer is thick and there is limestone formation. This study aims to identify the physical quality and hardness level of clean water sourced from dug wells and drilled wells, after treatment through filtration methods. Filtration is carried out using mixed media with variations in residence time in the filtration media, namely 30 minutes, 60 minutes and 90 minutes. The results showed that the effectiveness of reducing hardness in dug wells and drilled wells was highest for a variation in 90 minutes, For dug wells, the effectiveness of 90 minutes of residence time reached 9.18% and for drilled wells, the effectiveness reached 16.36%.
Co-Authors Karol Octrisdey Mauguru, Edwin M. Ni Made Susilawati Norma Tiku Kambuno Sadukh, Johanis JP