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Direct Calophyllum oil extraction and resin separation with a binary solvent of n-hexane and methanol mixture

Amalia Kartika, Ika and Cerny, Muriel and Vandenbossche, Virginie and Rigal, Luc and Sablayrolles, Caroline and Vialle, Claire and Suparno, O. and Ariono, Danu and Evon, Philippe Direct Calophyllum oil extraction and resin separation with a binary solvent of n-hexane and methanol mixture. (2018) Fuel, 221. 159-164. ISSN 0016-2361

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Official URL: http://dx.doi.org/10.1016/j.fuel.2018.02.080

Abstract

This study investigated the use of a mixture of n-hexane and methanol as a binary solvent for the direct oil extraction and resin separation from Calophyllum seeds, in a single step. Optimal oil and resin yields and physicochemical properties were determined by identifying the best extraction conditions. The solvent mixture tested extracted oil and resin effectively from Calophyllum seeds, and separated resin from oil. Extraction conditions affected oil and resin yields and their physicochemical properties, with the n-hexane-to-methanol ratio being the most critical factor. Oil yield improved as n-hexane-to-methanol ratio increased from 0.5:1 to 2:1, and resin yield increased as methanol-to-n-hexane ratio increased from 0.5:1 to 2:1. Physicochemical properties of oil and resin, particularly for acid value and impurity content, improved as the n-hexane-to-methanol ratio decreased from 2:1 to 0.5:1. The best oil (51% with more than 95% triglycerides) and resin (18% with more than 5% polyphenols) yields were obtained with n-hexane-to-methanol ratios of 2:1 and 0.5:1, respectively, at a temperature of 50 °C, with an extraction time of 5 h. The best values for physicochemical property of oil were a density of 0.885 g/cm3, a viscosity of 26.0 mPa.s, an acid value of 13 mg KOH/g, an iodine value of 127 g/100 g, an unsaponifiable content of 1.5%, a moisture content of 0.8% and an ash content of 0.04%.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at :https://www.sciencedirect.com/science/article/pii/S0016236118302394
HAL Id:hal-01713906
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
French research institutions > Institut National de la Recherche Agronomique - INRA (FRANCE)
Other partners > Institut Teknologi Bandung - ITB (INDONESIA)
Other partners > Institut Pertanian Bogor - IPB (INDONESIA)
Laboratory name:
Funders:
French Government (Campus France) - Kemenristekdikti Republic of Indonesia
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Deposited By: Philippe EVON
Deposited On:21 Feb 2018 08:10

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