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All Journal Bioscientist : Jurnal Ilmiah Biologi Jurnal Pengabdian Masyarakat Indonesia (JPMI)
Noor Hujjatusnaini
Universitas Islam Negeri Palangka Raya
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology Social Sciences Other

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Pendampingan Praktikum Mikroskopis untuk Meningkatkan Keterampilan Proses Sains Siswa Kelas VIII MTs Terpadu Berkah Palangka Raya Dina Nur Khalisa; Noor Hujjatusnaini
Jurnal Pengabdian Masyarakat Indonesia (JPMI) Vol. 3 No. 2 (2025): Desember
Publisher : Publikasi Inspirasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62017/jpmi.v3i2.6123

Abstract

Kegiatan praktikum merupakan salah satu metode pengajaran penting untuk meningkatkan keterampilan proses sains (Science Process Skills, SPS) pada siswa. Namun, di tingkat Madrasah Tsanawiyah (MTs), pelaksanaan praktikum sering terkendala oleh keterbatasan fasilitas laboratorium dan kurangnya dukungan dalam penggunaan mikroskop. Untuk mengatasi permasalahan tersebut, dilakukan kegiatan pendampingan praktikum mikroskopis berbasis experiential inquiry bagi siswa kelas VIII MTs Terpadu Berkah Palangka Raya. Kegiatan ini bertujuan untuk meningkatkan pemahaman konsep mikroskop serta keterampilan proses sains siswa. Metode pelaksanaan meliputi empat tahap, yaitu koordinasi, pendampingan awal, praktikum langsung, dan evaluasi melalui pretest dan posttest. Hasil kegiatan menunjukkan adanya peningkatan rata-rata hasil belajar siswa dari 62 menjadi 84 meningkat sebesar 35,5%. Peningkatan ini membuktikan bahwa praktikum mikroskopis efektif dalam memperkuat pemahaman konsep mikroskop dan mengasah keterampilan proses sains, khususnya pada aspek observasi, inferensi, dan komunikasi ilmiah. Selain itu, kegiatan ini juga mendorong kolaborasi antara mahasiswa MBKM dan guru dalam penerapan pembelajaran berbasis laboratorium. Dengan demikian, kegiatan pendampingan ini memberikan kontribusi nyata terhadap pembelajaran IPA yang kontekstual, interaktif, dan bermakna, sekaligus menjadi model pengabdian berkelanjutan yang bermanfaat bagi sekolah mitra serta penguatan kompetensi mahasiswa.
Isolasi dan Identifikasi Bakteri Lipolitik Indigenous untuk Bioremediasi Tanah Limbah Pabrik Kelapa Sawit Muhammad Nor; Noor Hujjatusnaini; Ridha Nirmalasari
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 4 (2025): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i4.17644

Abstract

This study aims to isolate, identify, and test the potential of native lipolytic bacteria from LCPKS contaminated soil, as well as to determine the effect of supplementation of oil palm leaf midrib extract on its degradation activity. The research method uses an experimental design with isolation techniques and morphological characterization of bacteria, followed by a lipolytic test on Nutrient Agar Fat (NAL) medium and a bioremediation test using oil palm leaf midrib extract at concentrations of 0.1%, 0.5%, and 1%. The results showed that there were nine types of colonies with three dominant bacteria, namely Candida spp. (95 colonies), Streptomyces sp. (11 colonies), and Aspergillus spp. (4 colonies). The three bacteria were shown to be lipolytically active, as evidenced by the formation of a clear zone in the NAL medium. Supplementation with oil palm frond extract significantly increased colony growth, with the highest yield at a concentration of 1% (>360 colonies/15 mL). ANOVA analysis showed differences in degradation effectiveness between colonies, with Aspergillus spp. exhibiting higher activity than other colonies. These findings confirm that the use of indigenous lipolytic bacteria in combination with oil palm frond extract can be a sustainable bioremediation strategy to reduce oil and fat content in LCPKS.
Co-Authors Dina Nur Khalisa Muhammad Nor Ridha Nirmalasari