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All Journal BiosciED: Journal of Biological Science and Education ARRUS Jurnal Pengabdian Kepada Masyarakat
Aditami, Tanzilal
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology Languange, Linguistic, Communication & Media Public Health Social Sciences Other

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Efektivitas Ekstrak Buah Pir Dalam Menghambat Streptococcus Pyogenes Pada Media NA : Effectiveness of Pear Fruit Extract in Inhibiting Streptococcus Pyogenes in NA Media Aditami, Tanzilal; Jannah, Ena S A R; Maharani Putri, Zahra
BiosciED: Journal of Biological Science and Education Vol. 6 No. 1 (2025): BiosciED June 2025
Publisher : FKIP, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37304/bed.v6i1.22192

Abstract

This study aims to determine the effectiveness of pear fruit extract (Pyrus pyrifolia) in inhibiting the growth of Streptococcus pyogenes in vitro using the disk diffusion method on Nutrient Agar (NA) media. Infection by Streptococcus pyogenes is the main cause of acute pharyngitis and often shows resistance to certain antibiotics, so natural treatment alternatives are needed. Pear fruit extract was tested at concentrations of 25%, 50%, 75%, and 100%. The test was conducted using the disk diffusion method on Nutrient Agar (NA) media, with inhibition zone measurements taken after incubation for 48 hours at 37°C. The results showed that all concentrations of the extract were able to form inhibition zones, with the 100% concentration producing the largest inhibition zone. Analysis showed a correlation between increasing extract concentration and antibacterial effectiveness, although it was not completely linear. The content of phytochemical compounds such as flavonoids and phenols in pears is thought to play a role in disrupting bacterial cell membranes and cell metabolism. This study supports the potential of pears as a natural antibacterial agent against Streptococcus pyogenes and contributes to the development of natural-based therapies to overcome antibiotic resistance.
Peningkatan Kompetensi Praktikum Biologi Melalui Pelatihan Penggunaan Mikroskop Bagi Siswa Sma Ciwaru Setiawati, Ina; Widiantie, Rahma; Hindriana, Anna Fitri; Handayani, Handayani; Aditami, Tanzilal
ARRUS Jurnal Pengabdian Kepada Masyarakat Vol. 4 No. 2 (2025)
Publisher : PT ARRUS Intelektual Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/454RI.abdiku4400

Abstract

Keterbatasan fasilitas laboratorium Biologi dan rendahnya keterampilan penggunaan mikroskop menjadi permasalahan utama dalam pembelajaran biologi di SMA Ciwaru. Kegiatan pengabdian kepada masyarakat ini bertujuan meningkatkan kompetensi praktikum biologi siswa melalui pelatihan penggunaan mikroskop yang sistematis dan aplikatif. Metode pelaksanaan menggunakan pendekatan partisipatif-kolaboratif melalui empat tahapan: sosialisasi, pelatihan, pendampingan, dan evaluasi. Peserta kegiatan adalah 30 siswa kelas XI dan 1 guru biologi SMAN Ciwaru. Pelatihan mencakup pengenalan bagian mikroskop, teknik pengamatan dan pengaturan fokus, pembuatan preparat, serta mini project observasi mikroskopik. Hasil menunjukkan peningkatan signifikan pada keterampilan siswa: kemampuan mengatur fokus meningkat dari 17% menjadi 87%, dan kemampuan membuat preparat meningkat dari 20% menjadi 83%. Evaluasi melalui kuesioner menunjukkan 93% siswa menyatakan pelatihan sangat bermanfaat, 87% merasa lebih termotivasi, dan 90% mengalami peningkatan pemahaman konsep biologi. Program ini juga menghasilkan modul pelatihan sebagai luaran berkelanjutan. Pelatihan terbukti efektif meningkatkan kompetensi praktikum biologi siswa dan memperkuat budaya pembelajaran sains berbasis praktik di sekolah mitra, selaras dengan SDGs tujuan 4 tentang pendidikan berkualitas
Co-Authors Anna Fitri Hindriana Handayani Handayani Ina Setiawati Jannah, Ena S A R Maharani Putri, Zahra Rahma Widiantie