Physicochemical Characteristics and Fatty Acids from Dried and Boiled Seeds Oils of Myrianthus arboreus from Côte d’Ivoire
Journal Title: Haya: The Saudi Journal of Life Sciences - Year 2018, Vol 3, Issue 4
Abstract
Abstract:Seeds ofMyrianthus arboreus P. Beauvwere collected fromfrom Didoko forest, at 140 km from Abidjan (Côte d’Ivoire). One part of seeds (about 1 kg) was dried at sun (30-35°C) for a week (Dried Seeds, DS). A second part (1 kg), was boiled in water (100°C) for 30min (Boiled Seeds, BS).Oils were extracted usingchloroform and methanol as solvent and the content in oil was determined by gravimetry.Physicochemical caractéristiques were determined using the méthodes of the American Oil Chemists Society.The total lipid contents of myrianthus arboreus seeds were 45.82±2.16 and 46.02±0.49; respectively for DS and BS.Physicochemical properties of these oils showed that acid values ; saponification and peroxide values and the iodine indices were 1,94±0.1 and 3,00±0.17 mg KOH/g ; 136,68 ± 0.32 mg KOH/g of oil and 148,36± 0.64 mg KOH/g of oil ; 5,49± 0.49 mEq/Kg and 5,6±0.10 mEq/Kg ; and 104,037±0.037 g I2/100g and 103.O42±0.042 g I2/100g respectively for DSO and BSO. The colours of myrianthus arboreus seeds oils wereyellow-orange for DSO and pale yellow for BSO respectively. The quality and stability of traditionally processed myrianthus arboreus seeds oil as affected by temperature were evaluated by analyzing their physicochemical properties which included acid, saponification, peroxide, and iodine indices. The results indicate that All these parameters analysed increased except the iodine value witch decrease in the range of 4.037 to 2.02. The saponification value increases from 136,68 to 223.5, acid value from 1,94 to 10.75 and peroxide value from 5,49 to 14.48.Fatty acid profile of these oils revealed that the most abundant fatty acid in myrianthus arboreus seeds oils was linoleic.acid. In both oils, DSO showed the highest percentage of composition of 97,18 ± 0.18 and 88.95 ± 0.95 for BSO, respectively, followed close by with oleic acid (0,781±1.35 and 4,05±0.05 respectively for DSO and BSO) and linolenic acid (1,50 ±0.28 and 5,54±0.54 respectively for DSO and BSO). Keywords: myrianthus arboreus ; seeds ; oils, boiled ; fatty acids ; dried ; charasteristics.
Authors and Affiliations
Eudoxie Manou Tia, Yolande Dogoré Digbeu, Hortence Sika Blei, Edmond Ahipo Dué, Lucien Patrice Kouamé
Keywords
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