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All Journal Chimica et Natura Acta Jurnal Pengabdian, Pendidikan dan Teknologi Mechanical Engineering for Society and Industry
Pasha, Muhammad Faizullah
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation Other

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IMPLEMENTASI MESIN PENCACAH RUMPUT UNTUK PETERNAKAN SAPI DI DESA MULYOREJO, KECAMATAN NGANTANG Andoko, Andoko; Prasetya, Riduwan; Pasha, Muhammad Faizullah; Darmawan, Muhammad Wahid; Puspitasari, Poppy; Lubis, Didin Zakariya
Jurnal Pengabdian Pendidikan dan Teknologi (JP2T) Vol 4, No 2 (2023)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um080v4i22023p75-80

Abstract

Peternakan sapi merupakan sektor yang paling potensial di Desa Mulyorejo, Kecamatan Ngantang, Kabupaten Malang. Sapi perah merupakan jenis sapi yang paling banyak diternak yang menghasilkan susu. Permasalahan peternak di Desa ini adalah rendahnya produktivitas susu karena manajemen pakan yang kurang terkontrol dan sisa pakan yang terlalu banyak yang menjadi limbah. Pengabdian ini bertujuan untuk mengatasi permasalahan ini melaui implementasi mesin pencacah rumput. Kegiatan penelitian meliputi analisis permasalahan mitra, desain dan manufaktur mesin, implementasi ke mitra, dan evaluasi. Mesin pencacah rumput dapat mencacah hingga kapasitas 177 kg/jam pada kecepatan 1800 rpm. Berdasarkan hasil evaluasi pada implementasi mesin pencacah rumput diperoleh hasil bahwa sisa pakan berkurang dan produktivitas susu meningkat. Sehingga, implementasi mesin pencacah rumput bagi mitra efektif, tepat sasaran, dan solutif.
Influence of Polyvinyl Alcohol Content on Starch-Based Bioplastic Reinforced with Chitosan and Microcrystalline Cellulose Putra, Bagus Kharisma; Andoko, Andoko; Afandy, Mochamad Viky; Pasha, Muhammad Faizullah; Prasetya, Riduwan
Chimica et Natura Acta Vol 14, No 1 (2026)
Publisher : Departemen Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cna.v14.n1.70771

Abstract

Starch-based bioplastics are promising sustainable alternatives to petroleum-based plastics; however, their limited mechanical strength and stability restrict broader packaging applications. This study investigates the influence of polyvinyl alcohol (PVA) content on the structural and functional properties of starch-based bioplastic films reinforced with chitosan and microcrystalline cellulose (MCC). Films prepared by solution casting with varying PVA compositions were characterized in terms of density, mechanical properties, thermal stability, biodegradation behavior, antibacterial activity, and structural features. Increasing PVA content produced denser film structures with improved tensile strength and thermal stability, while elongation at break reached its maximum at the intermediate formulation, indicating a strength–ductility trade-off. The control film exhibited antibacterial inhibition zones of 12.6 mm against Staphylococcus aureus and 8.8 mm against Escherichia coli, with activity decreasing at higher PVA content. These findings demonstrate that adjusting PVA composition effectively tailors the multifunctional performance of starch-based bioplastic films for sustainable packaging applications.
Preparation and characterization of cellulose nanocrystals (CNCs) from pennisetum purpureum (PP) fibers via ammonium persulfate oxidation method Pasha, Muhammad Faizullah; Andoko, Andoko; Darmawan, Muhammad Wahid; Nabillah, Fina Nur; Prasetya, Riduwan; Mustapa, Mohammad Sukri Bin
Mechanical Engineering for Society and Industry Vol. 5 No. 2 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/mesi.13595

Abstract

The growing demand for sustainable and high-performance materials emphasizes the need for more efficient production methods for cellulose nanocrystals (CNCs). Traditional CNC synthesis, however, often requires significant energy input and produces harmful by-products, which undermine its environmental and economic viability. In response to this challenge, this study explores the use of an eco-friendly ammonium persulfate (APS) oxidation method to produce CNCs from Pennisetum purpureum fibers. The findings reveal that CNCs synthesized at a temperature of 60 °C exhibited the highest crystallinity index (72.62%), optimal surface functionalization, and exceptional mechanical properties, including a tensile strength of 18.44 MPa.The structural, chemical, and mechanical properties of the CNCs were comprehensively evaluated using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy (SEM-EDX), and tensile strength testing. These results highlight the effectiveness of APS oxidation in producing high-quality CNCs from readily available agricultural biomass. By utilizing a sustainable approach, this research not only advances the production of eco-friendly materials but also demonstrates the potential for agricultural waste to be repurposed in nanotechnology applications. The study thus makes a significant contribution to sustainable material science, providing insights into improving CNCs production while minimizing environmental impact, ultimately supporting the transition towards a more sustainable and circular economy.
Co-Authors Afandy, Mochamad Viky Andoko Andoko, Andoko Darmawan, Muhammad Wahid Didin Zakariya Lubis Mustapa, Mohammad Sukri Bin Nabillah, Fina Nur Prasetya, Riduwan Putra, Bagus Kharisma Rr. Poppy Puspitasari