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All Journal CHEMPUBLISH JOURNAL Stannum : Jurnal Sains dan Terapan Kimia Jurnal Pengabdian Masyarakat (ABDIRA)
Kholifah, Siti Nurriyatul
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Aerospace Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Languange, Linguistic, Communication & Media Nursing Social Sciences Other

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Pemanfaatan Brotowali sebagai Bahan Dasar Pembuatan Pestisida Nabati Martha, Rahma Diyan; Kholifah, Siti Nurriyatul; Nurjanah, Mutia Hariani
Jurnal Pengabdian Masyarakat (ABDIRA) Vol 5, No 3 (2025): Abdira, Juli
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/abdira.v5i3.794

Abstract

The intensive use of chemical pesticides in the agricultural sector has raised serious concerns due to their adverse effects on human health and the environment. In response to this issue, the development and application of botanical pesticides offer a safer and more sustainable alternative. This community engagement initiative was conducted with the objective of enhancing the knowledge and practical skills of farmers in Wates Village regarding the utilization of Brotowali as a raw material for botanical pesticide production. The implementation of the program comprised three main stages: preliminary coordination and needs assessment, educational outreach and training, and evaluation through pre- and post-intervention testing. The results indicated a substantial improvement in participants’ understanding, with correct responses increasing from 30% in the pre-test to 85% in the post-test. Furthermore, qualitative reflections revealed a high level of participant interest in independently producing and applying botanical pesticides using locally available resources. This initiative underscores the effectiveness of participatory and educational approaches in fostering sustainable agricultural practices and promoting the adoption of indigenous plant-based pest control methods.
Calcium Reduction Using Variations of Thickness and Retention Time of Cocoa Shell Activated Carbon Muadifah, Afidatul; Santoso, Arif; Ngibad, Khoirul; Martha, Rahma Diyan; Kholifah, Siti Nurriyatul
Chempublish Journal Vol. 7 No. 1 (2023): Chempublish Journal
Publisher : Department of Chemistry, Faculty of Science and Technology Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/chp.v7i1.24768

Abstract

High levels of hardness can lead to increased cases of kidney stones. Hardness levels can be reduced by using activated carbon from the cocoa rind as an adsorbent. The purpose of this research was to determine the variation of activated carbon thickness and optimum retention time in reducing the calcium content of dug well water, to determine the percent decrease in calcium ion levels at the optimum variation, and to determine the significance of the difference in the decreased in calcium levels between the treatment groups. The research method used the principle of adsorption of activated carbon from cocoa shells to calcium ions, which are activated by KOH. There were ten treatment samples with different variations of activated carbon thickness and retention time. The results showed that the thickness of activated carbon of 60 cm with a retention time of 50 minutes had the optimum ability to reduce the calcium content of dug well water. The percentage decrease in calcium levels reached 89,041 % with a decreased concentration of 234 ppm. The result of the statistical test showed a significance value of 0,05. The conclusion of the research is that activated carbon of cocoa shells can reduce calcium levels to the levels of soft water hardness, with variations in activated carbon thickness and retention time having a significant effect.
Utilization Analysis of the Ethyl Acetate Fraction of Cumin Leaves (Plectranthus amboinicus) as an Antimicrobial against Staphylococcus aureus using LC-MS Martha, Rahma Diyan; Fajri, Ayu Insa; Danar, Danar; Kholifah, Siti Nurriyatul; Parbuntari, Hesty
Stannum : Jurnal Sains dan Terapan Kimia Vol 6 No 2 (2024): October 2024
Publisher : Department of Chemistry - Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jstk.v6i2.4528

Abstract

The research investigates the antibacterial potential of cumin leaves due to their rich composition of flavonoid compounds, alkaloids, saponins, and tannins. The study's objectives encompass assessing the antibacterial efficacy of cumin leaf's ethyl acetate fraction against Staphylococcus aureus bacteria, identifying the concentration of this fraction yielding the most substantial inhibition zone, and characterizing the compound composition within the fractionated cumin leaf extract. Extraction involved maceration using 96% ethanol and fractionation through water, n-hexane, and ethyl acetate solvents. The ethyl acetate fraction's phytochemical screening affirmed the presence of flavonoids, alkaloids, saponins, and tannins. Liquid chromatography-mass spectrometer (LC-MS) analysis pinpointed the top two peaks as flavonoid compounds. Antibacterial assessments, executed via paper disc diffusion method, employed concentrations of 15%, 20%, and 25% of the ethyl acetate cumin leaf extract against Staphylococcus aureus, each repeated thrice. The 20% concentration exhibited the most substantial inhibition zone, averaging 23.1mm, compared to 16.8mm for 15% and 19.6mm for 25%, indicating its optimal efficacy against S. aureus growth. Statistical analysis employing ANOVA testing underscored the significance of the ethyl acetate cumin leaf fraction's concentration variations on S. aureus, as evidenced by a p-value of 0.00 (below the significance threshold of 0.05). This underscores the impact of the ethyl acetate cumin leaf fraction's concentrations on inhibiting S. aureus growth. The findings shed light on the potential of cumin leaves as a source of antimicrobial agents, with the 20% ethyl acetate fraction exhibiting notable effectiveness, opening avenues for further exploration and applications in antibacterial research.
Co-Authors Arif Santoso Danar, Danar Fajri, Ayu Insa MARTHA, RAHMA DIYAN Muadifah, Afidatul Ngibad, Khoirul Nurjanah, Mutia Hariani Parbuntari, Hesty Rahma Diyan Martha