Pengolahan Limbah Serbuk Kayu Jati Menjadi Asap Cair

Abstract

Wood processing in Indonesia produces a lot of sawdust waste that has not been fully utilized. One way to overcome this is to process it into liquid smoke which can be used as raw material for fish preservatives. The process began with pyrolising the sawdust into liquid smoke, the liquid smoke was then purified by distillation, and the results were characterized by GCMS and FTIR. Liquid smoke quality testing was also carried out, namely measuring pH, determining density, testing floating materials, determining organic acid levels, and determining transparency and color. Pyrolysis of Jati wood powder produces 3.5 L of liquid smoke out of 2 Kg sawdust, in which the pyrolysis process was done at 400°C for 4 hours. The main chemical constituents of liquid smoke from Jati wood powder were carbamic acid phenyl ester (22.52%), 2-methoxy-phenol (15.88%), 2-methyl-2-cyclopentanol (10.56%), tetrahydro-2-furanmethanol (8.22%), 2-methyl-phenol (6.78%), and 5-hydroxy-2-heptanone (5.53%). The liquid smoke was yellow, transparent, with a pH value of 3.12 and organic acid content value of 1.196%, with a density of 0.9307 g/cm3 and contain 0.3 mg/mL floating material.