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All Journal JAREE (Journal on Advanced Research in Electrical Engineering) Jurnal Mahasiswa: Jurnal Ilmiah Penalaran dan Penelitian Mahasiswa
Zukhri, Muhammad Fakhrudin
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Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Social Sciences

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Integration of Liquid Organic Fertilizer Fermentor with Automated Hydroponic Fertilization Based on IoT Zukhri, Muhammad Fakhrudin; Aisyah, Puti Yeni; Wirawan, Yudi; Nainggolan, Tia Yohana; Anandhita, Firda; Hermawan, Muhammad Ivan
JAREE (Journal on Advanced Research in Electrical Engineering) Vol 9, No 2 (2025): July
Publisher : Department of Electrical Engineering ITS and FORTEI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/jaree.v9i2.493

Abstract

As urbanization continues to accelerate, particularly in cities like Surabaya, the availability of agricultural land has been steadily decreasing, making food security a growing concern. In response to these challenges, urban farming, particularly through hydroponic systems, has emerged as a promising solution to ensure sustainable food production in limited spaces. However, issues such as the high cost and limited availability of high-quality fertilizers, as well as the difficulty in maintaining a consistent farming schedule, have posed significant barriers. This study aims to address these challenges by integrating IoT-based systems for temperature and pH monitoring, aiming to enhance farming efficiency. The validation results for both the DS18B20 Temperature Sensor and the pH Sensor 4502-C demonstrate their high accuracy and reliability for environmental monitoring. The DS18B20 sensor showed minimal error, with 0.89% for increasing temperatures and 1.34% for decreasing temperatures, achieving 99.11% and 98.66% accuracy, respectively. These results confirm the sensor’s effectiveness in real-time temperature control applications, such as those used in hydroponics and fermentation systems. Similarly, the pH Sensor 4502-C exhibited remarkable performance, with 99% accuracy in the acidic buffer, 98.99% in the neutral buffer, and 99% in the basic buffer. The error rates were extremely low, at 0.002% for acidic and basic buffers, and 0.01% for the neutral buffer, reinforcing the sensor’s reliability for pH monitoring in controlled environments.
Ekstraksi Kitin Dan Kitosan Tulang Sotong Menggunakan Teknologi Microwave Zukhri, Muhammad Fakhrudin; Putri Elvita Dewi, Putri Elvita Dewi; Joshfira Eurika Widianto, Joshfira Eurika Widianto; Siti Masruroh, Siti Masruroh
Jurnal Mahasiswa: Jurnal Ilmiah Penalaran dan Penelitian Mahasiswa Vol. 7 No. 01 (2025): Jurnal Mahasiswa Maret 2025
Publisher : Universitas Sains dan Teknologi Komputer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51903/jurnalmahasiswa.v7i1.983

Abstract

The increasing production within the seafood processing industry has resulted in a significant rise in the volume of marine waste. A major component of this waste is chitin, which can be derived from the shells of shrimp, crabs, and other marine organisms. This offers substantial potential for processing marine waste into high-value products such as chitosan. Chitosan exhibits numerous physiological functions, including biodegradability, biocompatibility, non-toxicity, anticancer properties, lipid-lowering effects, and immune-enhancing capabilities. This study aims to extract chitin and chitosan from cuttlefish bone waste using microwave irradiation methods and to evaluate the effectiveness of microwave irradiation in improving the efficiency and quality of chitin and chitosan extraction compared to conventional methods. The extracted chitin and chitosan were analyzed and characterized using Fourier-transform infrared spectroscopy (FTIR) to identify functional groups and UV-Vis spectrophotometry. The FTIR analysis results demonstrated the successful deacetylation of chitin into chitosan. This was marked by a broad peak in the range of 3200–3500 cm⁻¹, representing the stretching vibrations of hydroxyl (-OH) and amine (-NH) groups. The peak at 2922 cm⁻¹ corresponded to C-H vibrations from methyl (-CH) and methylene (-CH₂) groups. The reduction in the intensity of the carbonyl (C=O) peak at 1650 cm⁻¹ indicated the removal of most acetyl groups, while the peak at 1560 cm⁻¹ suggested the presence of primary amine (-NH₂) groups, which are characteristic of chitosan’s structure. These findings highlight the potential of microwave irradiation as an effective method for the extraction of high-quality chitosan from marine waste, providing a sustainable solution for waste utilization in the seafood processing industry. Further investigations could explore the optimization of microwave parameters to enhance the yield and functional properties of chitosan for various applications.
Co-Authors Aisyah, Puti Yeni Anandhita, Firda Hermawan, Muhammad Ivan Joshfira Eurika Widianto, Joshfira Eurika Widianto Nainggolan, Tia Yohana Putri Elvita Dewi, Putri Elvita Dewi Siti Masruroh, Siti Masruroh Wirawan, Yudi