Turpentine oil extraction from pine resin by microwave assisted hydro-distillation (MAHD) technique

Abstract

Turpentine oil obtained from pine resin plant consists of α-pinene utilized to synthesize organic compound used to produce paint and disinfectant for example. This project aims to study extraction of turpentine oil by Microwave Assisted Hydro-Distillation (MAHD). This study evaluates effect of time, power and volume of pine resin_to turpentine oil characteristic. Variables observed in this study are time (30 to 90 min), power (300 to 600 Watt) and material (150 to 250 mL). Turpentine oil quality such as color, density and refractive index are identified with respect to SNI 7633-2011 while α-pinene concentration determined using GCMS. Highest yield is 27.31% obtained from extraction of 150 mL pine resin using 600 Watt of microwave power for about 60 min. Chemical composition of turpentine oil at that certain condition are α-pinene of 68,53%, 3-carene of 14,31% and β-pinene of 5,23% respectively. Turpentine oil product has characteristic of clear color with refractive index of 1.467 and density of 0.853 g/cm3. This study concludes microwave energy very potential to be utilized as source of energy to extract turpentine oil from pine resin as it proceeding very rapidly.