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R Sudradjat
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Energy Materials Science & Nanotechnology

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Journal : Jurnal Penelitian Hasil Hutan

 1 
PENGARUH BEBERAPA FAKTOR PENGOLAHAN TERHADAP SIFAT ARANG AKTIF R Sudradjat
Jurnal Penelitian Hasil Hutan Vol 2, No 2 (1985): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3347.034 KB) | DOI: 10.20886/jphh.1985.2.2.1-4

Abstract

Variables used in this investigation are wood species (Jelutung and keruing), carbonization temperatures (400°C and 500°C) and activators (CaCl2, MgCl2 and ZnCl2). The parameters observed were yield, moisture content, ash content, iodine and benzene adsorption. This investigation reveals that the highest yield obtained from keruing wood, CpCl2 activator at carbonization temperature of 400°C. The lowest moisture content charcoal obtained by using processing temperature of 500°C. Jelutung wood with MgCl2 activator had the lowest moisture content compared to that of ZnCl2 activator. The highest iodine adsorption obtained when using ZnCl2 activator and carbonization temperature of 500°C (for keruing wood). It was found that high benzene vapor adsorption charcoal could be produced by using ZnCl2 activator, carbonization temperature 500°C and Jelutung wood as raw material.Sunbury, H.M. (1923). The destructive distillation of wood. Ben Brother, Ltd., London.Hartoyo (1975). Arang aktif, pembuatan dan penggunaan. Kehutanan Indonesia.Sudradjat Prawirakusuma dan Tjipto Utomo (1972). Pembuatan Arang Aktif. Lembaga Kimia Nasional. LIPI Bandung.
PENGARUH CARA EKSTRAKSI TERHADAP SIFAT FISIKA DAN KIMIA SAGU R Sudradjat
Jurnal Penelitian Hasil Hutan Vol 2, No 1 (1985): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1985.2.1.18-21

Abstract

The aim of this investigation is to evaluate  the effect of extraction methodes on physical  and chemical properties  of sago. Extraction  methodes  comprise  of  fermentation,  mechanical, and  traditional.The result indicated that sago yield varies from 20,19%  - 40,12%, acidity  0,89 - 0,98,  moisture  13,39% -14,29%, ash 0,15%  - 0,32%, protein 0,38%  - 0,46%, crude  fiber 0,27%  - 0,31%,  fat  0,17%  - 0,23%  and amylum  72,64%  - 88,12%.Mechanical  extractions  gave  the  highest  yield  and  amylum  content. Fermentation  methode  show more  acid  than traditional.  The traditional  methode presents the  highest ash content. This included that the mechanical methode  seemed to be preferable   for  commercial application.
Co-Authors Armansyah H. Tambunan Soolany, Christian