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All Journal Reaktor TEKNIK METANA JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Bulletin of Chemical Reaction Engineering & Catalysis Seminar Nasional Teknik Kimia Kejuangan Majalah Ilmiah MOMENTUM Indonesian Journal of Chemistry Jurnal Pasopati : Pengabdian Masyarakat dan Inovasi Pengembangan Teknologi International Journal of Renewable Energy Development Bulletin of Chemical Reaction Engineering & Catalysis JURNAL REKAYASA KIMIA & LINGKUNGAN
Bakti Jos
Departemen Teknik Kimia, Fakultas Teknik, Universitas Diponegoro, Kampus Undip Tembalang Jl. Prof. Soedarto, SH, Semarang, Indonesia 50275
Aerospace Engineering Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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Journal : METANA

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PENGGUNAAN MEMBRAN ULTRAFILTRASI DALAM PEMBUATAN SARI BUAH RAMBUTAN JOS, BAKTI; Susanto, Heru; Kuntolaksono, Satrio; Ariyanto, Yanuar
METANA Vol 6, No 02 (2010): Desember 2010
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (67.421 KB) | DOI: 10.14710/metana.v6i2.3430

Abstract

Abstract   Hairy fruit (Nephelium sp) is fruit of horticultural belong in family Sapindacaeae. Membrane is a thin layer separates two phases which allow the displacement of specific components and hold other components that do not being needed. Ultrafiltration is a filtration process using membranes that filter out particles with a size of 20 to 1000 Angstrom. Results of ultrafiltration has high purity (0.4 to 0.6 NTU turbidity) than results from conventional manner (1.5-3 NTU turbidity). Yield gained was 5-8% higher than that gained from conventional. Dependent variable used is kind of hairy fruits (crops and cans). The independent variable is the pressure 2 kg/cm2, 3 kg/cm2, 0.4 kg/cm2, 0.5 kg/cm2, 0.6 kg/cm2 and the type of membrane (PES and hydrosart). The result of the study showed that greater operation pressure resulted in greater turbidity, and greater flux. The greater flux resulted smaller selectivity and pass the requirement of Environmental Protection Agency, USA.   Key word : Hairy fruits, juice, membrane, ultrafiltration
EKSTRAKSI ASAM LEMAK OMEGA - 3 DARI LIMBAH IKAN TUNA Jos, Bakti
METANA Vol 3, No 2 (2006): Juli 2006
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4396.6 KB) | DOI: 10.14710/metana.v3i2.1804

Abstract

Abstract Tuna waste still have a valuable substance that is fish oil, which contains omega-3 fatty acid. Omega-3 is polyunsaturated fatty acid, consist of two acid, eicosapentaenoic acid (EPA) and  dokosahexanoic acid (DHA). Omega-3 fatty acid has many usefulness for human’s health, related to heart, retina, and brain function. This research is done to get omega-3 fatty acid from tuna waste by extraction method using n-hexane. The purposes of the research are to learn about variables that affect the product and decide the condition to get optimal product. The research method is making table and chart from the variables. The condition of the operation are : temperature ± 30oC, solvent n-hexane, KOH concentration is 40 gr/liter, and concentration of oil in feed is 0.068 gr/cc. The variables are : comparison of solvent and feed (10:4; 15:4; 20:4; 25:4; 30:4; 35:4) at period 1,5 jam, and period of extraction (0,5; 0,75; 1; 1,25; 1,5; 1,75 jam) at comparison of solvent and feed 30:4. The result shows that the optimal condition is reached at comparison of solvent and feed 30:4 and period of extraction 1,5 hour. The rendement is 24,76%. Key words : tuna, omega-3, extraction
Co-Authors . Widayat A Abdullah Aat Zaki Mubarok Abdullah Abdullah Abdullah Abdullah Aji Prasetyaningrum Al Farrel A. Raemas Andri Cahyo Kumoro Angga Mei Sarah Aprianto Aprianto Bambang Pramudono Dessy Ariyanti Dessy Ariyanti Diah Susetyo Retnowati Dyah Hesti Wardhani Fadlillah Fani Feninda Nevrita Fitri Lafifa Gian Restu Prinanda Hantoro Satriadi Hargono Hargono Hargono Hargono Hargono Hargono Hargono Hargono Hargono Hargono Hargono Hargono Heri Cahyono Heri Cahyono Heru Susanto Isti Pudjiastuti Jonathan Ginting Listiyana Riska Muchlis Riki Darmawan Noer Abyor Handayani Nur Rokhati Patrick Andreas Praditya Nugraha Prayudi Eko Setyawan Prayudi Eko Setyawan Ratnawati Ratnawati Sadam Arrois Salsabila, Unik Hanifah Satrio Kuntolaksono Setiawan, Fajar Kasih Siswo Sumardiono Suherman Suherman Suherman, Suherman Sukaryo Sukaryo Teguh Riyanto Widayat Widayat Y Yufidani Yanuar Ariyanto Yudha Satria Yudha Satria Yudhy Dharmawan Zakaria, Muhammad Fahmi