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Optimisation of concurrent Calophyllum oil-resin extraction and separation

Abstract : This research optimised the application of a hexane-methanol mixture as a binary solvent for the concurrent oil-resin extraction and separation from Calophyllum seeds on a pilot scale, in a direct stage. The optimum oil and resin yields were determined by optimising the extraction conditions using response surface methodology and a second order polynomial model. The extraction conditions affected the oil and resin yields, with the extraction time as the biggest influencing factor. Optimum oil (65%) and resin (16%) yields were predicted to be obtained at 5.2 h and 433 rpm. The model validation with these extraction conditions showed that the predicted results and actual oil (62%) and resin (15%) yields were in passable agreement. The oil was composed of 75.4% triglycerides with a density of 0.874 g·cm–3, a viscosity of 26.4 mPa·s–1, an acid value of 46.4 mg KOH·g–1, an iodine value of 98.0 g iodine·100 g–1, trace water and sediment contents, and zero ash content. The resin had a viscosity of 4 694.8 mPa·s–1, a total phenolic content of a 4.51% gallic acid equivalent, an antioxidant activity of an 8.82 mg ascorbic acid equivalent·g–1, and an acid value of 126.2 mg KOH·g–1.
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https://hal.inrae.fr/hal-03313745
Contributor : Hélène Lesur <>
Submitted on : Wednesday, August 4, 2021 - 3:43:08 PM
Last modification on : Thursday, August 5, 2021 - 3:01:42 AM

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Ika Kartika, Muriel Cerny, Virginie Vandenbossche, Philippe Evon, Wega Trisunaryanti, et al.. Optimisation of concurrent Calophyllum oil-resin extraction and separation. Research in Agricultural Engineering, 2021, 67 (No. 2), pp.84-91. ⟨10.17221/67/2020-RAE⟩. ⟨hal-03313745⟩

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