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All Journal Jurnal Teknologi Industri Pertanian Jurnal Kimia Terapan Indonesia Jurnal Ilmiah Wahana Pendidikan
Hernowo, Pandit
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Religion Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Social Sciences Other

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PROSES HIDROLISIS ASAM DAN ENZIM PADA POLISAKARIDA Euchema cottonii UNTUK BAHAN BAKU BIOETANOL Pandit Herwono, Dwi Setyaningsih dan Bagus Sediadi Bandol Utomo TIP
Jurnal Teknologi Industri Pertanian Vol. 25 No. 1 (2015): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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Abstract

Indonesia is the second largest exporter of seaweed in the world. It has a promising availability and capacity of producing bioethanol from seaweed. Euchema cottonii is abundantly available in theIndonesian sea which contains high carbohydrate concentration for bioethanol production. This research studied the effect of sulfuric acid concentration for hydrolysis at 121oC and the concentration of cellulase enzyme at different reaction time. The results showed that the best treatment was 1% (v/v) sulfuric acid hydrolysis for 60 min and enzymatic hydrolisis of 5% (v/v) for 12 hours. The reducing sugar content was 5.06% w/v, ethanol yield was 0,55% b/v and fermentation efficiency was 23.47%.Keywords: E. cottonii, acid hydrolysis, enzymatic hydrolysis, bioethanol
Study of Reaction Kinetics by Flynn Wall Ozawa Method on Sawdust Pyrolysis Process Alif Gita Arumsari; Pandit Hernowo; Jemmy Wibowo; Mukhammad Yazid Fadlulloh; Rasino Setiawan
Jurnal Kimia Terapan Indonesia Vol 24, No 1 (2022): Jurnal Kimia Terapan Indonesia
Publisher : Research Center for Chemistry - LIPI

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Pyrolysis which is also called thermolysis will chemically decompose organic matter (biomass) through a heating process without or little O2 or other reagents, where the raw material will undergo a breakdown of the chemical structure into a gas phase. The purpose of this study is as an alternative solution in answering the problem of fuel scarcity in everyday life, & Knowing the amount of activation energy calculated using the Flynn Wall Ozawa method. The biomass used is Dutch teak sawdust obtained from the wood furniture industry in the Tangerang area.The experimental results of pyrolysis of Dutch teak sawdust with round gas opening from experiment 1 to experiment 9 obtained BCO as much as 6.00%, 6.50%, 6.83%, 7.33%, 7.67%, 8 ,83%, 10.17%, 14.33%,16.33%. . While the results of the round gas opening experiment from experiment 1 to experiment 9, BCO was obtained as much as5.67%, 6.17%, 6.67%, 7.17%, 7.33%, 7.83%, 9.67%, 13.83%, 15.83%. The pyrolysis process produces three types of products, namely solid products or charcoal, liquid products (bio-oil) & gas. In our research, the best quality bio oil obtained at temperatures from 548 K to 598 K. The results of bio The oil obtained at this temperature is brownish yellow in color, with an average volume of ± 48 g of bio oil (52.6 ml).
Pembelajaran Melukis Dengan Menggunakan Media Cat Air bagi anak Sekolah Dasar di Perumahan Taman Alamanda Bekasi Desiana Nur Indra Kusumawati; Abidin M Noor; Kusnadi .; R. Widyo Wibisono T; Ateng Setiawan; Wisnu Indra Kusumah; Pandit Hernowo
Jurnal Ilmiah Wahana Pendidikan Vol 9 No 11 (2023): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.8067565

Abstract

Aktivitas kegiatan melukis dapat dijadikan sebagai salah satu cara untuk mengukur kemampuan imaginasi dan tingkat kreativitas pada anak namun permasalahan saat ini banyak yang kurang tertarik minat anak karena standar penilaian hanya pada mata pelajaran bidang lainnya, padahal subsektor seni rupa Indonesia memiliki potensi besar baik secara kualitas, kuantitas, pelaku kreatif, produktivitas, hingga potensi pasar.Sehingga kegiatan melukis dengan cat air ini bertujuan selain mengembangkan imaginasi dan kreatifitas anak sedari kecil melalui pengenalan ragam karya seni rupa Indonesia, juga nantinya dapat mengangkat nama Indonesia ke mata dunia dan menjadi sumber devisa kebudayaan yang bernilai tinggi. Media cat air adalah Media Lukis dengan teknik menggunakan sesikit warna dan air yang banyak, sehingga lukisan dengan teknik ini cenderung bersifar transparat atau • Peluang ini dapat menjadi lukisan memberi efek bergradasi baik dalam perbedaan intensitas ataupun dengan warna yang berbeda di Taman Alamanda Bekasi. Hasil yang didapat anak-anak dapat menampilkan visual lukis tema pemandangan alam Indonesia dengan mengggunakan teknik menggunakan cat air. Kesimpulan dari pengenalan kegiatan melukis pada anak-anak dimana Seni Rupa menjadi standar penilaian masyarakat internasional, dan menjadi ukuran kemajuan peradaban budaya sebuah bangsa sehingga perlu dilakukan edukasi pada anak anak untuk meningkatkan kreativitasnya serta mau mengembangkan bidang senirupa khususnya melukis dengan cat air dengan terus dilatih melalui kegiatan melukis.
Co-Authors Abidin M Noor Alif Gita Arumsari Ateng Setiawan Desiana Nur Indra Kusumawati Jemmy Wibowo Kusnadi . Mukhammad Yazid Fadlulloh R. Widyo Wibisono T Rasino Setiawan Wisnu Indra Kusumah