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All Journal Reaktor International Journal of Renewable Energy Development METANA Sawala : Jurnal Administrasi Negara Indonesian Journal of Chemistry Jurnal Organisasi Dan Manajemen Prosiding Seminar Nasional Sains dan Teknologi Terapan Conference on Innovation and Application of Science and Technology (CIASTECH) JIA (Jurnal Ilmiah Agribisnis) : Jurnal Agribisnis dan Ilmu Sosial Ekonomi Pertanian ASEAN Journal of Chemical Engineering JUMANTIK: Jurnal Mahasiswa dan Peneliti Kesehatan Ilmu Pendidikan International Journal of Renewable Energy Development
Silviana Silviana
Department Of Chemical Engineering, Faculty Of Engineering, Diponegoro University, Jl. Prof. Soedarto SH, Tembalang, Semarang 50275, Central Java, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Neuroscience Social Sciences Other

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Journal : METANA

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PROSES PENGKELATAN MINYAK CENGKEH DENGAN ASAM SITRAT Silviana, Silviana
METANA Vol 5, No 2 (2007): Desember 2007
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2612.929 KB) | DOI: 10.14710/metana.v5i2.1907

Abstract

Abstract   Clove leaf oil is essential oil produced by distillation of clove leaf. The oil is still dark color and low eugenol content, generally. It was caused by Fe content in the oil, so the oil has dark color. Furthermore, it needs to improve the value of clove leaf oil through chelating process with citric acid. The objective of research is to obtain the significant variable for content and volum response. The research conducts with initial Fe content, chelating process, and final analysis of Fe content. Analysis of Fe content uses Spectrofotometry. The research uses design of experiment: factorial design 24 with variables: citric acid concentration (1- 2%b), temperature (50oC – 70oC), time (l - 2 hours) and stirring speed (300-600 rpm). Data treatment obtained using Design Expert software. The result shows that temperature and time are significant variable for decreasing Fe content. Decreasing of Fe content from initial content 22,98mg/L down to l,86 - 2l,26mg/L. Regresion model obtained is Eugenol =74,45 + 0,10325 temperature. However, absorbent concentration and stirring speed variables have significant influent for decreasing volume. The regresion model obtained is Fe content = 34,6075-(0,54775T)-29,0551+0,548Tt, where T  is temperature and t is time of chelating process.   Key word: clove leaf oi;  chelaling;  citric acid; Fe  content  
Co-Authors Abdul Halim Adi Darmawan Afriza Ni'matus Sa'adah Agus Subagio Ahmad Alvinal Azmi Anang M Legowo Andy Hardianto Anisa Widia Utami Arie Restu Wardhani Ayu Wulandari Bella Ayu Silawanda Candra Aditya Cantika Aulia Salsabila Dadang Hermawan Didi Dwi Anggoro Fahmi Arifan Febio Dalanta Febio Dalanta H Hadiyanto H. Hadiyanto Ismael Saleh Istiqomah Muryaningsih Kevin Aprilio Kevin Ryo Pratama Luqman Buchori Muhammad Aswar Limi Muslimin, M. Nurwantoro Nurwantoro Piontek Benedictus Brandon Puji Rahayu Purnama Putra, Purnama Siti Susanti Syuraini, Syuraini Vebrina Hania Cholily Yelta Okta Dina