Elsevier logo Scopus logo Search Lists Sources SciVal Opens in a new tab How can we help? Brought to you by Create account Sign in Document details - Study of the stability of Ricinodendron heudelotii oil: Effects of solar radiation on the chemical composition of the oil 1of1 Services SFX pour INRAE(opens in a new window)|Services SFX pour INRAE(opens in a new window)| Industrial Crops and ProductsVolume 18815 November 2022 Article number 115552 Document type Article Source type Journal ISSN 09266690 DOI 10.1016/j.indcrop.2022.115552 Study of the stability of Ricinodendron heudelotii oil: Effects of solar radiation on the chemical composition of the oil a, b; a ; a; b; a; a; a; a; a; b a Laboratoire de Chimie Agro-industrielle, LCA, Université de Toulouse, INRAE, Toulouse, France b Laboratoire de constitution et réaction de la matière, LCRM, Université Félix Houphouët Boigny Cocody, Equipe “ synthèse structurale ”, 22 BP 582 Abidjan 22, Cote d'Ivoire Study of the stability of Ricinodendron heudelotii oil: Effects of solar radiation on the chemical composition of the oil Abstract The native crude oil of Ricinodendron heudelotii mainly consists of triglycerides formed typically with polyunsaturated fatty acids (84%). Fatty acids with three conjugated double bonds (Conjugated Linolenic Acids, CLnA) contain more than 60% of α-eleostearic acid (C18:3 9c, 11 t, 13 t). The heat-treating process using the traditional hulling method of seeds for kernel consumption results in the isomerization of α-eleostearic acid into β-eleostearic and catalpic acid. In order to gather information about the transformation of these conjugated polyunsaturated fatty acids, a study to investigate the effects of solar radiation on the native oil was conducted. Changes in the chemical composition of fatty acids in the oil, especially conjugated polyunsaturated fatty acids, were monitored by GC (Gas Chromatography). Analysis of fatty acid profiles of treated and untreated oils showed the isomerization of α-eleostearic acid under the effect of solar radiation, whether natural or artificial. This isomerization involves the conversion of α-eleostearic acid into its isomers β-eleostearic acid (C18:3 9 t, 11 t, 13 t) and catalpic acid (C18:3 9 t, 11 t, 13c) with a ratio of 5:1 in the triglycerides of the oil. Our findings highlight the significant influence of solar radiation on composition and isomerization of the fatty acids of Ricinodendron heudelotii oil, and emphasize as well as its potential use in the industrial production of some CLnA isomers.