Isomerization of resin acids during pine oleoresin distillation

✍ Scribed by I. Portugal; J. Vital; L.S. Lobo

• Book ID: 103009037
• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 276 KB
• Volume: 51
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(96)00117-0

✦ Synopsis

The aim of the present work was to understand and develop a model to describe the changes resin acids undergo during pine oleoresin processing. Experimental data for the thermal isomerization of levopimaric acid, in the temperature range 155-200°C, were used to develop a kinetic model. Model validation was based on the experimental results from the batch distillation of pine oleoresms. Both the experimental activation energy, and pre-exponential factors seem to change during the course of distillation, due presumably to solvent (turpentine) removal.