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All Journal SAINSMAT bionature Indonesian Journal of Biotechnology Biology Teaching and Learning Seminar Nasional Pengabdian Kepada Masyarakat SAINSMAT: Jurnal Ilmiah Ilmu Pengetahuan Alam Indonesian Journal of Fundamental Sciences Jurnal Pemikiran dan Pengembangan Pembelajaran
Hartono
Jurusan Biologi, Fakultas Matematika Dan Ilmu Pengetahuan Alam, Universitas Negeri Makassar
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Physics Public Health Veterinary

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Komposisi Kimia Pupuk Kompos dari Limbah Padat Rumah Potong Hewan Tamangapa Kota Makassar Hartono Hartono; Surahman Nur; Oslan Jumadi
bionature Vol 23, No 1 (2022): April
Publisher : Fakultas MIPA UNM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/bionature.v23i1.34365

Abstract

Abstract. Slaughterhouses (RPH) produce large amounts of solid waste every day and have not been utilized optimally. RPH solid waste has great potential to be used as plant fertilizer through the composting process. Composting is expected to change the organic material composition of the abattoir solid waste to be more ideal to support plant growth. This study aims to determine the chemical composition of compost made from waste at RPH Tamangapa Makassar City before and after the composting process. Composting from solid waste at Tamangapa RPH Makassar was carried out using the main ingredients, namely rumen contents (treatment I) and rumen contents mixed with livestock manure in a ratio of 1:1 (Treatment II). The composting process was carried out in a compost box with a size of 40x40x60 cm with a passive aeration system for 4 weeks with three replications. Quantitative data tested in this study included the content of N-total (%), C-Organic (%), P-total (%), K-total (%), C/N ratio, organic matter (%), water content (%) and compost reduction (%). The results showed that the content of elements C, N, P, K, C/N ratio, organic matter, and water content before composting in both treatment I and treatment II were generally still low and almost the same as the raw materials. After the composting process took place, the content of C, P, K, C/N ratios generally showed an increase, while the N content was relatively constant. The results of the analysis showed that there was no significant difference between the chemical composition of the compost in the treatment and both before and after the composting process.Keywords: RPH solid waste, composting process, chemical composition of compost, C/N ratio.
Tinjauan Molekuler dan Epidemiologi Mutasi pada Virus SARS-CoV-2 Hartono Hartono; Yenni Yusuf
bionature Vol 22, No 1 (2021): April
Publisher : Fakultas MIPA UNM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/bionature.v22i1.22379

Abstract

Abstract. The SARS-CoV-2 virus which is the cause of the COVID-19 pandemic since the end of 2019 has undergone many mutations that gave rise to several variants of concern (VOC) with higher transmission, virulence, and ability to evade the immune system than the initial variant (wild-type). Until now, there are four variants included in the VOC of the virus, namely alpha, beta, gamma and delta variants. The increased transmission and virulence of these VOCs were associated with mutational changes in the spike protein, which is the structure of the virus that plays a role in binding to host cells. In this article, we conduct a literature review on VOCs from the SARS-CoV-2 virus related to mutations that occur and their impact on the viral binding process. To gain an understanding of the impact of mutations in these variants, we also reviewed the structure of the spike protein and the process of viral entry into host cells. Keywords: viral mutation, variants of concern (VOC), COVID-19, SARS-CoV-2.
Gambaran Kinerja Pengomposan Limbah Padat Rumah Potong Hewan Tamangapa Kota Makassar dengan Sistem Aerasi Pasif Hartono .; St. Fatma Hiola; Surahman Nur; Oslan Jumadi
bionature Vol 22, No 2 (2021): Oktober
Publisher : Fakultas MIPA UNM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/bionature.v22i2.26192

Abstract

Abstract. Slaughterhouse waste is generally disposed into the environment without being processed, so that it potentially causes air pollution, water pollution, and soil pollution. Slaughterhouse waste can be processed and used as plant fertilizer through the composting process. This study aims to compare the composting performance of solid waste at Tamangapa RPH Makassar between the main ingredient consisting of rumen contents only (treatment I) with that consisting of a mixture of rumen contents with livestock manure (treatment II). We recorded quantitative data including temperature (0C), pH, material mass reduction and composting time and qualitative parameters including color, smell and texture of the resulting compost. The composting process was carried out in a compost box with a size of 40x40x60 cm with a passive aeration system for 4 weeks with three replications. Our results demonstrated that treatment I and treatment II had a similar pattern of temperature changes, while the average pH of treatment I was higher compared to treatment II. Based on the composting performance data including changes in temperature and pH from the first week to the fourth week of composting, we concluded that both treatments resulted in a rapid composting process with good-quality compost.Keywords: composting performance, RPH solid waste, composting process, rumen contents, passive aeration.
Co-Authors . Syafruddin A. Irma Suryani A. Mushawwir Taiyeb Alimuddin Ali Andi Rahmat Saleh Aulya Novira Ayu Andi Indra, Ayu Bakri Zakia, Bakri Cut Muthiadin Halifah Pagarra Hikmanul Irfiany Daud Hilda Karim Idris, Irma Suryani JAKA WIDADA Liawati ., Liawati Marsito Marsito Nur Rahmah Nurlinda Nurlinda Oslan Jumadi Oslan Jumadi Ramli . Siti Kabirun Siti Saenab St. Fatmah Hiola Surahman Nur Surahman Nur, Surahman Syamsiah, Syamsiah Wahdaniyyah Wahdaniyyah Yenny Yusuf Yusuf Yenni