Article Per Year (5 Year)
p-Index From 2021 - 2026
0
P-Index
This Author published in this journals
All Journal The Journal of Experimental Life Sciences (JELS)
Agus Sukarno
Faculty of Forestry Malang Agriculture University
Biochemistry, Genetics & Molecular Biology Immunology & microbiology Medicine & Pharmacology Neuroscience

Published : 1 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 1 Documents
Search

 1 
Physical Properties of Turpentine and Gum Rosin Pinus merkusii Jungh et de Vriese Tapped Oleoresin by Borehole Method Agus Sukarno
The Journal of Experimental Life Science Vol. 8 No. 1 (2018)
Publisher : Postgraduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (974.919 KB) | DOI: 10.21776/ub.jels.2018.008.01.07

Abstract

This study was conducted to determine the physical properties of turpentine and gum rosin derived from oleoresin tapped with borehole method. The research material is derived oleoresin from Aceh provenance pine and Jember landrace. The test results of the physical properties of turpentine are as follows; color: clear, specific gravity 0.84-0.85, refraction index 1.46, negative fatty oil, flash point 34-35.5°C, residual evaporation 1.2-1.6%, and optical round + 32.2-32.4o. Result of test of physical properties of gum rosin: color X (main), softening point 76.0-76.5°C, impurity 0.0014-0.0051%, acid value 179.5-188.5, saponification value 188.7-194.3, iodine number 9.6-9.8, ash content 0.001-0.005% and volatile turpentine content 2.1-2.4%. Keywords: Aceh provenance pine, borehole method, gum rosin, turpentine.
Co-Authors