The Journal of Experimental Life Sciences (JELS)
Vol. 8 No. 1 (2018)

Physical Properties of Turpentine and Gum Rosin Pinus merkusii Jungh et de Vriese Tapped Oleoresin by Borehole Method

Agus Sukarno (Faculty of Forestry Malang Agriculture University)

Article Info

Publish Date
27 Feb 2018

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.

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Journal Info
The Journal of Experimental Life Sciences (JELS)
Website

Abbrev

jels

Publisher

Universitas Brawijaya

Subject

Biochemistry, Genetics & Molecular Biology Immunology & microbiology Medicine & Pharmacology Neuroscience

Description

The Journal of Experimental Life Science (JELS) is a scientific journal published by Postgraduate School, University of Brawijaya as distribution media of Indonesian researcher’s results in life science to the wider community. JELS is published in every four months. JELS published scientific ...