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All Journal Alchemy : Journal of Chemistry Journal of Innovation and Applied Technology ECSOFiM (Economic and Social of Fisheries and Marine Journal) REKAYASA
Wiryawan, Adam
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Materials Science & Nanotechnology Physics Social Sciences

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Phytochemistry and Antibacterial Activity of the Water Extract from Paraserianthes falcataria Masruri, Masruri; Wiryawan, Adam; Ikhtiarini, Nur; Nurravida, Elvira
ALCHEMY:Journal of Chemistry Vol 12, No 1 (2024): ALCHEMY: JOURNAL OF CHEMISTRY
Publisher : Department of Chemistry, Faculty of Science and Technology UIN Maulana Malik Ibrahim Malan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/al.v12i1.24234

Abstract

Chemotaxonomic and phylogenetic studies show that sengon wood (Paraserianthes falcataria) has the potential to produce secondary metabolites with diverse structures and are bioactive. This research aims to study the chemical composition of the water extract and the bioactivity for inhibiting bacteria of Sengon (Paraserianthes falcataria). The method involves extraction by maceration, and analysis the extract by LCMS/MS methodology. In addition, the extract was evaluated to inhibit the Escherichia coli and Staphylococcus aureus. It was found that indohoki77 menggunakan teknologi enkripsi terbaru untuk memastikan bahwa data pribadi dan transaksi finansial para pemain aman dari ancaman pihak ketiga the water extract gives a viscous brown liquid, and the identified compound indicate the present of glycosidic compound, amino-alcohol structure, and fatty acid ester. Moreover, the antibacterial evaluation was able to inhibit the growth of E. coli 8.685 ± 4.876 mm, and toward the S. aureus bacteria 14.120 ± 4.418 mm, respectively.
Utilization of Livestock Manure as Biogas and Liquid Organic Fertilizer (LOF) in Sumbermulyo Village, Pesanggaran, Banyuwangi Masruri, Masruri; Wiryawan, Adam; Ikhtiarini, Nur; Setyawan, Hendrix Yulis; Hadiwijoyo, Erekso
Journal of Innovation and Applied Technology Vol 10, No 1 (2024)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jiat.2024.10.01.011

Abstract

Biogas, generated by anaerobic bacteria breaking down organic matter, presents an energy alternative. Sumbermulyo, a Banyuwangi village, relies on dragon fruit farming and goat herding, facing shortages of subsidized urea fertilizer and LPG. The solution: utilizing goat manure for methane gas, replacing LPG. This community service project introduces a biogas processing pilot in Sumbermulyo, producing liquid organic fertilizer for local use. A fixed dome concrete biogas digester is constructed on a farmer group's land in 14 days, with peak pressure at 1.06 atm. Chemical analysis shows 0.032% N, 0.009% P, 0.144% K for the test digester, and 0.044% N, 0.005% P, 0.195% K for the reference digester, offering a sustainable energy and fertilizer solution for the community.
Analysis of Fishermen's Responses as an Effort to Mitigate And Adapt to Climate Change in Tambak Lorok Rahmawati, Nadhea Oktaviantina; Wiryawan, Adam
ECSOFiM (Economic and Social of Fisheries and Marine Journal) Vol 11, No 1 (2023): ECSOFiM October 2023
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.ecsofim.2023.011.01.12

Abstract

Climate change is a natural phenomenon resulting from global warming on earth which occurs continuously and increases every year. The main factor causing global warming is greenhouse gases produced from human and industrial activities. Coastal areas are zones that play a large role in the world carbon cycle which influences global warming. The low response of coastal communities to climate change can have an impact on the emergence of social and ecological problems, namely tidal floods. Social and ecological issue in coastal areas are important things that are tied to each other. The research purpose is to analyze the fishermen’s response to climate change as a mitigation and adaptation effort in Tambak Lorok, Semarang City. This research uses a mixed methode approach, with research subjects of 35 respondents. The research results show that as many as 67.72% of the fisherman’s already respond to the climate change phenomenon in Tambak Lorok, Semarang City. The climate change mitigation efforts carried out are mangrove restoration and conservation by cultivating mangroves and collaborating with Corporate Social Responsibility to carry out environmental programs based on mangrove conservation such as the planting program of 1000 mangroves in the coastal area of Tambak Lorok. It is hoped that this program can be a commitment of the community and industry that synergize to mitigate climate change in Tambak Lorok.
Analisis Environmental-DNA (E-DNA) Untuk Estimasi Jumlah Total Bakteri Pada Air Kolam dengan Sistem Recirculation Aquaculture System (RAS Kurniawan, Andi; Amin, Abd. Aziz; Guntur, Guntur; Susanti, Yogita Ayu Dwi; Wiryawan, Adam; Pramudia, Zulkisam; Okuda, Hideki; Yanuar, Adi Tiya
Rekayasa Vol 15, No 3: Desember 2022
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v15i3.16844

Abstract

Catfish is an aquaculture commodity that has great potential to be developed in various regions in Indonesia. The success of catfish cultivation is primarily determined by creating a suitable environment for catfish. One way to create a suitable environment for catfish cultivation is the Recirculation Aquaculture System (RAS). In applying RAS, the presence of organic matter in the pond is controlled so the pond water can be reused. The presence of organic matter in pond water is determined mainly by the activity of bacteria in the water. These bacteria are actively involved in the pond's residual organic matter degradation process. Therefore, the total number of bacteria in the water can be one of the essential parameters in the RAS. The method widely used to calculate the abundance of bacteria is counting the number of bacteria based on bacterial culture method. However, the bacteria that can be cultured are only a small part of the bacteria in the water, so the abundance value obtained does not reflect the actual bacterial population. Therefore, it is necessary to analyze the abundance of bacteria using a method closer to the actual abundance value, such as the environmental DNA (eDNA) analysis. This study aims to analyze the abundance of bacteria in water in catfish aquaculture with RAS using the eDNA method. In addition, this study also analyzes water quality data (temperature, pH, Dissolved Oxygen). This study's results indicate that the water temperature value in catfish ponds ranges from 28.0 to 29.0 °C, the average pH value is 7.7, and the dissolved oxygen is between 5.7 - 6.2 mg/L. The water quality analysis results indicate that RAS can maintain optimum conditions in the catfish cultivation process. This study also showed that the total microbial abundance value at the beginning of cultivation was 1.68 × 107 cells/ml, and on day 30, it was 3.6 × 106 cells/ml. The dynamic of bacterial densities in this study may indicate that this system can maintain the stability of the microbial community. 
Co-Authors Amin, Abd. Aziz Andi Kurniawan Erekso Hadiwijoyo Guntur Guntur Ikhtiarini, Nur Masruri Masruri Nurravida, Elvira Okuda, Hideki Pramudia, Zulkisam Rahmawati, Nadhea Oktaviantina Setyawan, Hendrix Yulis Susanti, Yogita Ayu Dwi Yanuar, Adi Tiya