oa South African Journal of Chemical Engineering - Preliminary study : kinetics of oil extraction from basil () by microwave-assisted hydrodistillation and solvent-free microwave extraction

Volume 21, Issue 1
  • ISSN : 1026-9185



Basil () is an annual herb that is widely grown as a commercial ornamental crop in tropical and warm temperate regions of the world including Asia, Africa, Central and South America. Basil oil is of economic significance due to its widespread utilization in food, cosmetics and pharmaceutical industries. The aim of this study is to investigate the potential of MAHD and SFME for the extraction of essential oils from . In this study, the author also attempted to know and verify the kinetics and mechanism of MAHD and SFME of based on second-order model. In this study, MAHD and SFME are used to extract essential oils from . The initial extraction rate, the extraction capacity and the second-order extraction rate constant were calculated using the model. Kinetics of oil extraction from by MAHD and SFME proved that the extraction process was based on the second-order extraction model as the experimentally done in three different steps. The initial extraction rate, , was 0.0305 g L-1 min-1 for MAHD and 0.1702 g L-1 min-1 for SFME, the extraction capacity, C, was 0.8371 g L-1 for MAHD and 0.8229 g L-1 for SFME, the second-order extraction rate constant, , was 0.0436 L g-1 min-1 for MAHD and 0.2513 L g-1 min-1 for SFME and coefficient of determination, , was 0.9355 for MAHD and 0.9842 for SFME.

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