Physicochemical Properties and Fatty Acid Profile of Shea Butter and Fluted Pumpkin Seed Oil, a Suitable Blend in Bakery Fat Production

Pumpking seed oil (Cucurbita pepo L.) popular as healthy oil and became natural antioxidant as consist of various unsaturated fatty acid, carotenoid, flavonoid and polyphenolic. The purpose of this research is to study the compounds on pumpkin seed oil that has antioxidant activity by determining fatty acids composition of the oil using gas chromatography-mass spectrometry (GC-MS) and antioxidant activity by inhibiting free-radical DPPH and determination of total polypheolic content as gallic acid using UV-Vis spectrophotometry. Pumpkin seed oil was produced by solvent extraction with Soxhlet apparatus used as sample. Oil samples was reacted to form fatty acid methyl ester for component analysis by GC-MS determination. Antifree-redical activity was determined using UV-Vis spectrophotometry to count the IC50 value of concentration series of mixed samples and free-radical DPPH compared to vitamin C as standard antioxidant. Total poliphenolic content as gallic acid was determined using UV-Vis Spectrophotometry by reacting samples with Folin-Ciocalteau reagent. Pumpkin seed oil content at least 10 moderate chain fatty acid, saturated and unsaturated, volatile oil and carotenoid. Antixidant activity of pumpkin seed oil with IC50 value of 16,90(±0,28)mg/L in inhibiting free-radical DPPH and has total polyphenolic content as gallic acid of 0,212%.Keywords: pumpkin seed oil, antioxydant, DPPH free radical, polyphenolic, UV sepctrophotometry, GC-MS.

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Effect of Processing on Physicochemical Properties and Fatty Acid Composition of Fluted Pumpkin (Telfairia occidentalis) Seed Oil

Pakistan Journal of Scientific & Industrial Research Series A: Physical Sciences ◽

10.52763/pjsir.phys.sci.59.2.2016.83.89 ◽

2016 ◽

Vol 59 (2) ◽

pp. 83-89

Author(s):

Jacob Olabode Alademeyin ◽

Jacob Olalekan Arawande

Keyword(s):

Fatty Acid Composition ◽

Fatty Acid ◽

Physicochemical Properties ◽

Acid Composition ◽

Seed Oil ◽

Acid Value ◽

Smoke Point ◽

Fluted Pumpkin ◽

Telfairia Occidentalis ◽

Acid Acid

This paper reports the physicochemical properties and fatty acid composition of the seed oil extracted from fluted pumpkin (Telfairia occidentalis). The extracted oil was degummed, neutralised and bleached. The oil yield was 42.26±0.20%. The specific gravity (at 25 °C) of the oil was 0.923±0.003 and the refractive index (at 25 °C) was 1.475±0.002. Processing of the crude oil resulted in progressive decrease in turbidity, colour, free fatty acid, acid value, peroxide value and saponification value. However, there was increase in smoke point (243.00±0.03 to 253.00±0.03 °C), flash point (285.00±1.20 to 304.00±1.10 °C) and fire point (345.00±1.10 to 358.00±1.55 °C) as well as iodine value (113.00 to 121.50 g/100 g) and fatty acid composition during the processing of the oil. The fatty acids detected in the oil samples were myristic, palmitic, stearic, oleic, arachidic, behenic, linoleic and linolenic acids. The predominant fatty acid was oleic acid (47.40-47.90%) followed by linoleic acid (26.36-30.44%) while the least fatty acidwas linolenic acid (0.01-0.05%).

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Physicochemical Properties and Fatty Acid Profile of Hyptis spicigera Seed Oil

Research Journal of Applied Sciences ◽

10.3923/rjasci.2010.123.125 ◽

2010 ◽

Vol 5 (2) ◽

pp. 123-125 ◽

Cited By ~ 3

Author(s):

Z. Ladan ◽

E.M. Okonkwo ◽

J.O. Amupitan ◽

E.O. Ladan ◽

B. Aina

Keyword(s):

Fatty Acid ◽

Physicochemical Properties ◽

Fatty Acid Profile ◽

Seed Oil

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