Rubber Seed Oil Properties, Authentication and Quality Assessment Using (Chloroform: Methanol) as Solvent

Physicochemical and instrumental characterization of rubber (Hevea brasiliensis (kunth. Muell.)) seed oil (RSO) were carried out for the purpose of quality assessment, identification, and authentication. Properties such as free fatty acid (FFA %), acid value, color, saponification value, iodine value, and unsaponifiable matter were determined. Fatty acid (FA) composition and TAG profiles were determined using gas chromatography (GC) and high performance liquid chromatography (HPLC), respectively. Structural features of RSO were also determined using FTIR, 1 H NMR and 13 C NMR spectroscopy. The natural form of RSO is highly acidic (acid value=17.43±0.06 mg KOH/g). The saturated FAs are palmitic (9.10±0.06) and stearic (12.63±0.01), and the main unsaturated FAs are oleic (25.31±0.13), linoleic (36.31±0.09), and linolenic (15.78±0.18). The oil can be classified as semidrying. Polyunsaturated TAGs of LnLnL and LnOO were the major TAGs found in RSO. FTIR, 1 H NMR and 13 C NMR analysis confirmed

[1]  J. Salimon,et al.  Physicochemical characteristics of Malaysian rubber (Hevea Brasiliensis) seed oil , 2009 .

[2]  M. Uusitupa,et al.  n-3 Fatty acids and 5-y risks of death and cardiovascular disease events in patients with coronary artery disease. , 2003, The American journal of clinical nutrition.

[3]  A. I. Aigbodion,et al.  Rubber seed oil quality assessment and authentication , 2005 .

[4]  C. Pillai,et al.  Preparation, analysis and applications of rubber seed oil and its derivatives in surface coatings , 2000 .

[5]  F. Okieimen,et al.  Preparation and characterisation of water-reducible alkyds with fumarized rubber seed oil , 2005 .

[6]  Bashar M. Abdullah Al-Qasiri.  A study on the thermal properties and solid fat content of Malaysian rubber seed oil , 2009 .

[7]  J. Salimon,et al.  Characteristics of Elateriospermum tapos seed oil as a new source of oilseed , 2006 .

[8]  S. Jayaraj,et al.  Performance and emission evaluation of a diesel engine fueled with methyl esters of rubber seed oil , 2005 .

[9]  E. N. Onyeike,et al.  Chemical composition of selected Nigerian oil seeds and physicochemical properties of the oil extracts , 2002 .

[10]  M. J. Mulky,et al.  Nutritional and toxicological evaluation of rubber seed oil , 1990 .

[11]  Richard D. O'Brien,et al.  Fats and oils: formulating and processing for applications. , 1998 .

[12]  Nadia Salih,et al.  Hydrolysis optimization and characterization study of preparing fatty acids from Jatropha curcas seed oil , 2011, Chemistry Central journal.