Publication: Micro-reactor for transesterification of plant seed oils
Issued Date
2009-05-01
Resource Type
ISSN
14389312
14387697
14387697
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2-s2.0-67449147090
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Mahidol University
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SCOPUS
Bibliographic Citation
European Journal of Lipid Science and Technology. Vol.111, No.5 (2009), 474-480
Suggested Citation
Phattaraporn Kaewkool, Kanisa Kittiratanapiboon, Kornkanok Aryusuk, Kanit Krisnangkura Micro-reactor for transesterification of plant seed oils. European Journal of Lipid Science and Technology. Vol.111, No.5 (2009), 474-480. doi:10.1002/ejlt.200800182 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/27020
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Title
Micro-reactor for transesterification of plant seed oils
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Abstract
The fatty acid compositions of vegetable or other plant seed oils are generally determined by gas chromatography (GC). Methyl esters (the most volatile derivatives) are the preferred derivatives for GC analysis. Esters of higher alcohols are good for the separation of volatile and positional isomers. All the esters of the C1-C8 alcohols of vegetable oils were silmilarly prepared by passing the reaction mixture containing the desired alcohol, oil and tetrahydrofuran through the micro-reactor (a 3-mL dispossible syringe packed with 0.5 g of NaOH powder). The reaction productswere acidified with acetic acid and the mixture was analyzed by high-performance size exclusion chromatography and GC. Transesterification was quantitative for primary alcohols, but an appreciable amount of free fatty acids was formed for secondary alcohols. Coriander seed oil was quantitatively esterified with 2-ethyl 1-hexanol with the micro-reactor in less than 1 min. Oleic and petroselinic acid 2-ethyl 1-hexyl esters are baseline separated on an Rtx-2330 capillary column (30 m × 0.25 mm, 0.25 μm film thickness). © 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.