Physicochemical Properties and Fatty Acid Profiles of Crude Oil Extracts from Three Vegetable Seeds

Amos-Tautua, Bamidele; Onigbinde, Adebayo

doi:10.3923/pjn.2013.647.650

Cited by 25 publications

(15 citation statements)

References 2 publications

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“…The SV values of the studied oils were 189.40 mg KOH/g and 190.22 mg KOH/g for pulp and seed samples, respectively. The results are in good agreement with Codex standard for cotton oil (189 - 198 mg KOH/g), soybean oil (189 - 195 mg KOH/g), corn oil (187 - 195 mg KOH/g) and peanut oil (187 - 196 mg KOH/g) [46], but lower than the 246.60 for African pear seed oil [47], 227.49 for groundnut seed oil [47] and 224.40 for shea butter tree seed oil [48]. Oil fractions with saponification values of 200 mg KOH/g and above, had been reported to possess low molecular weight fatty acids [45].…”

Section: Resultssupporting

confidence: 74%

Comparative Studies on the Lipid Composition of Blood Plum () Pulp and Seed Oils

Aremu

Ibrahim²,

Andrew³

2017

Open Biochem J.

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Background:Exploring under–utilized plant fruits could be of high significance for food security and nutritional requirements, therefore, it can effectively add to the overall improvement of a nation’s economy. Blood plum (Haematostaphis barteri) is a wild edible vegetable and its fruit contains pulp and oily seed which are edible.Methods:A study was carried out to determine fatty acid profile, phospholipid and phytosterol contents as well as some physicochemical parameters of pulp and seed oils of Haematostaphis barteri (popularly known as blood plum) using standard analytical techniques.Results:The most concentrated fatty acids were palmitic acid (15.34%) < oleic acid (22.31%) < linoleic acid (50.56%) for the pulp oil while that of seed oil were oleic acid (12.34%) < palmitic acid (25.37%) < linoleic acid (38.87%). Arachidic, behenic, lignoceric and palmitoleic acids were all present in small quantities with none of them recording up to 1.0% in either of the samples. Lauric was determined but not detected in the pulp oil. The fatty acid composition of pulp and seed oils contained a healthy mixture of all the types of saturated and unsaturated fatty acids. The value of polyunsaturated/saturated index (P/S) which is associated to the impact on human health was higher in the pulp oil (2.47). Phospatidylinositol had the highest content (17.69 mg/100g) in the pulp oil while the highest content in seed oil was phosphatidylcholine (351.82 mg/100g). The total phytosterols for pulp and seed oils were 17.09 and 436.37 mg/100g, respectively. The results of some physicochemical parameters of pulp and seed oils were colour (light amber yellow and pale yellow), kinematic viscosity (9.15 and 10.62 mm2/s), specific gravity (0.92 and 0.92), unsaponifiable matter (1.63 and 2.54%), flash point 29.00 and 295.00oC), saponification value (189.40 and 190.22 mg KOH/g), peroxide value (8.15 and 9.20 meq O2/kg), iodine value (94.24 and 122.42 mg of I/100 g) and acid value (16.50 and 24.00 mg KOH/g), respectively.Conclusion:Generally, high percentage PUFA and low value of cholesterol may make either of the sample oils, a good food source on health wise basis. It was also revealed that both sample oils may be developed into a commercial product for use in food products.

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Section: Resultssupporting

confidence: 74%

Comparative Studies on the Lipid Composition of Blood Plum () Pulp and Seed Oils

Aremu

Ibrahim²,

Andrew³

2017

Open Biochem J.

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“…The saponification value is an indicator that can be used to compare relative molecular masses and indicate the usefulness of oil in the industry. It depends on the average molecular weight or fatty acid chain length of all the fatty acids present, this value indicate that the oils have smaller molecular weight [22,23]. The oil yield of wild apricot kernels in this study ranged from 38 to 55.3 %, which is similar to the range reported for other commonly used edible oils.…”

Section: Resultssupporting

confidence: 80%

Mineral Composition, Physico-chemical Properties and Fatty Acids Profile of Prunus armeniaca Apricot Seed Oil

Shariatifar¹,

Pourfard²,

Khaniki³

et al. 2017

Asian J. Chem.

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“…The level of FFA in this report was found to increase with increase in temperature. The level of FFA at room temperature in this study was above the following literature values (%): varieties of melon seed oil (3.30-3.80) [20], groundnut seed oil (2.33) [21]; castor seed oil (0.14) [22]. High percentage of free fatty acid in oils is undesirable as it can cause off flavour, shorten the shelf life and lower the smoke point of oils Quality of oils is determined by the levels of FFA; oils of good quality have low levels of free fatty acids.…”

Section: Free Fatty Acid (Ffa)supporting

confidence: 58%

Effects of Temperature Change on the Physico-Chemical Properties of Sesame Seed Oil

Olaleye¹,

Adamu²,

Lawan³

2019

SJAC

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Heating is one of the most commonly used methods of food preparation in homes and industries and prolong use of oil for this purpose causes changes in its physical and chemical properties. The effects of changing temperature on various chemical and physical characteristics of sesame seed oil were studied. The oil was extracted using soxhlet apparatus with nhexane as extraction solvent. The seeds of sesame (Sesamumindicum) were found to have high oil content. Both the chemical and physical characteristics were investigated within a temperature range of 25-290°C. At room temperature (25°C), the results revealed the chemical characteristics as follows: acid value (AV) (5.61mg/g); peroxide value (PV) (4.42 Meq/kg); free fatty acid (FFA) (5.89%). The physical characteristics were: moisture content (MC) (5.50%); density (0.99g/cm 3); refractive index (RI) (1.47). At elevated range of temperatures (170-290°C), there were corresponding changes in both chemical and physical parameters as follows: AV (5.61-5.91mg/g); PV (4.44-6.05 Meq/kg); FFA (5.91-6.06%); MC (3.98-0.71%); density (0.95-0.69g/cm 3); RI (1.46-1.40). The study showed that there was gradual increase in chemical properties with increase in temperature whereas, the physical properties decreased gradually with increase in temperature.

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Physicochemical Properties and Fatty Acid Profiles of Crude Oil Extracts from Three Vegetable Seeds

Cited by 25 publications

References 2 publications

Comparative Studies on the Lipid Composition of Blood Plum () Pulp and Seed Oils

Comparative Studies on the Lipid Composition of Blood Plum () Pulp and Seed Oils

Mineral Composition, Physico-chemical Properties and Fatty Acids Profile of Prunus armeniaca Apricot Seed Oil

Effects of Temperature Change on the Physico-Chemical Properties of Sesame Seed Oil

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