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All Journal JOURNAL ONLINE OF PHYSICS Maspul Journal of Community Empowerment
Sumi Komala
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Humanities Education Languange, Linguistic, Communication & Media Physics Social Sciences Other

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BIOSENSOR FOR THIAMINE DETECTION USING YEAST SACCHAROMYCES CEREVISIAE Leonardus Riski Nainggolan; Siti Rahmawati Ibmar; Sumi Komala; Vira Annisa Rosandi; Lazuardi Umar
JOURNAL ONLINE OF PHYSICS Vol. 8 No. 1 (2022): JOP (Journal Online of Physics) Vol 8 No 1
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v8i1.21411

Abstract

Nowadays, people's lifestyles have undergone significant changes, such as decreased physical activity and increased sedentary behavior, as well as an increase in nutritionally unbalanced diets, especially in vitamin B1 (thiamine) intake. Deficiency and excess of thiamine can cause various diseases. Based on this, it is important to know the level of thiamine intake in dietary supplements and medicines. This study used a biosensor with amperometric principles to determine the effect of thiamine on the yeast Saccharomyces cerevisiae as a cell model. Measurements were made by adding controlled vitamins to cell metabolic activity using an amperometric biosensor based on Pt/Ag electrodes. An amperometric biosensor will measure the current from a reduction and oxidation reaction with a constant potential. The effect of adding vitamins to yeast cells was observed in the form of cellular respiration, which was expressed as a parameter of dissolved oxygen level (DO). Vitamins used as samples were given various concentrations of 30 mM, 45 mM, and 60 mM. The addition of thiamine causes an increase in the potential value for each increase in concentration, indicating that DO levels in the cell environment have decreased due to yeast cells consuming O2 during the respiration process. The results of this study indicate that yeast cell-based biosensors can detect variations in the concentration of thiamine for further health applications.
Pengembangan Literasi Dasar dalam meningkatkan Minat Membaca dan Menulis pada Anak Usia Dini di Desa Bangko Permata, Rokan Hilir Nurhasanah Nurhasanah; Cindy Dwi Rahmadani; Fuji Rahmat; Guruh Hikmatul Akbar; Hajri Febria Fitri; Ladia Apsari Hasibuan; Lilis Juliyanti; Muammar Zein; Sumi Komala; Yudinda Salza Aprilia
MASPUL JOURNAL OF COMMUNITY EMPOWERMENT Vol 5 No 1 (2023): MASPUL JOURNAL OF COMMUNITY EMPOWERMENT
Publisher : LP2M Universitas Muhammadiyah Enrekang

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Abstract

Kuliah Kerja Nyata (KKN) merupakan kegiatan sosial kemasyarakatan bagi mahasiswa yang sedang kuliah. Kegiatan KKN menempatkan mahasiswa dalam kehidupan sosial di masyarakat dan hidup serta berinteraksi dengan masyarakat dalam membantu dan bermanfaat bagi desa dan masyarakat. Kegiatan KKN yang dilakukan adalah mengadakan seminar bertema literasi pada anak usia dini. Seminar ini bertujuan untuk mengembangkan literasi dasar anak dalam meningkatkan minat membaca dan menulis. Seminar literasi diadakan di Perumahan Indah Permai, Desa Petatal, Kabupaten Baru Bara. Metode penelitian yang digunakan adalah penelitian lapangan. Penelitian ini termasuk dalam penelitian deskriptif kualitatif. Untuk teknik pengumpulan data menggunakan teknik observasi, wawancara dan dokumentasi. Tujuan pengembangan literasi dasar pada anak sejak dini adalah untuk melatih anak membaca dan menulis sejak dini serta menumbuhkan minat membaca dan menulis. Anak-anak di Desa Petatal hanya membaca buku dan menulis saat belajar di sekolah dan jarang membaca buku dan menulis saat di rumah. Hal inilah yang menjadi salah satu penyebab rendahnya minat baca tulis.
Co-Authors Cindy Dwi Rahmadani Fuji Rahmat Guruh Hikmatul Akbar Hajri Febria Fitri Ladia Apsari Hasibuan Lazuardi Umar Leonardus Riski Nainggolan Lilis Juliyanti Muammar Zein Nurhasanah Nurhasanah Siti Rahmawati Ibmar Vira Annisa Rosandi Yudinda Salza Aprilia