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All Journal Abdimas Jurnal Terapan Abdimas PENELITIAN DAN KARYA ILMIAH Syntax Literate: Jurnal Ilmiah Indonesia Conference on Innovation and Application of Science and Technology (CIASTECH) Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia JAST : Jurnal Aplikasi Sains dan Teknologi Jurnal Informatika dan Rekayasa Elektronik G-Tech : Jurnal Teknologi Terapan Journal of Sustainable Technology and Applied Science JURNAL PENELITIAN DAN KARYA ILMIAH LEMBAGA PENELITIAN UNIVERSITAS TRISAKTI Dharma: Jurnal Pengabdian Masyarakat Jurnal Penelitian dan Karya Ilmiah Lembaga Penelitian Universitas Trisakti Jurnal Inovasi Pengabdian dan Pemberdayaan Masyarakat Jurnal ATMOSPHERE
Anitarakhmi Handaratri
Institut Teknologi Nasional Malang
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Journal : Journal of Sustainable Technology and Applied Science

 1 
CHEMICAL DELIGNIFICATION OF MALANG ARABICA COFFEE HUSK WASTE FOR ALTERNATIVE ENERGY Anggorowati, Dwi Anna; Setyawati, Harimbi; Handaratri, Anitarakhmi; Dewi, Rini Kartika; Surbakti, Sriliani
Journal of Sustainable Technology and Applied Science (JSTAS) Vol. 6 No. 1 (2025): Journal of Sustainable Technology and Applied Science, May 2025
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat, Institut Teknologi Nasional (ITN) Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/jstas.v6i1.8131

Abstract

Malang Regency is an area that has the potential as the largest coffee producer inIndonesia. The coffee processing will produce ± 65% of coffee beans and ± 35% of coffeehusk waste so that in the Malang Regency area with coffee productivity of 9,245 tons, itwill produce coffee husk waste of ± 3,235 tons. The by-product of coffee processing in theform of coffee husk is a waste that has not been used optimally. Generally only used forfodder and compost.Looking at the presence of coffee husk waste and the composition of coffee husk, it has alignin content of 29%, hemicellulose by 24% and the highest cellulose by 33%. Adequatecellulose content of the material for the manufacture of bioethanol is more than 30%, fromthe composition of Arabica coffee husk, the cellulose content is more than 30%. So it hasthe potential to be used as an alternative fuel, one of which is to produce bioethanolproducts. This research aimed to reduce lignin content and increase cellulose content fromcoffee husk waste by chemical treatment using NaOH chemical. The stages of the researchwere coffee husk powder with a size of 80 mesh and weighed 5 grams and put into a glassbeaker. Then added NaOH solution with a concentration of (5.0%; 5.5%; 6.0%; 6.5%; and7.0% (v/v) with a volume of 50 ml. The sample was put in an autoclave at 121 °C for (15,30, 45, and 60 minutes. The best time was 30 minutes with a NaOH concentration of 7%with the highest cellulose content obtained, it was 55%.
Co-Authors Anggorowati, Dwi Anna Ayudya Mahendaringratry Ayudya Mahendaringratry Ayudya Mahendra Dwi Ana Anggorowati Faidliyah Nilna Minah Fredy Windana Gagok Setiawan Harimbi Setyawati Jimmy Jimmy Kestrilia Rega Prilianti Melany Agustina Mohammad Istnaeny Hudha Mohammad Taufan Asri Zaen Muyassaroh Muyassaroh Muyassaroh Muyassaroh Rini Kartika Dewi Siswi Astuti Sriliani Surbakti Sultan Arif Rahmadianto Yuniati, Yuyun Yuyun Yuniati