Physicochemical Characteristics, Fatty Acid Composition, and Lipoxygenase Activity of Crude Pumpkin and Melon Seed Oils

Al‐Khalifa, Abdulrahman S.

doi:10.1021/jf950519s

Cited by 118 publications

(84 citation statements)

References 12 publications

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“…These results are well within the range reported for conventional vegetable oils [21]. All the properties of EMSO (except the HHV) generally were in agreement with previous studies [22][23][24].…”

Section: Physicochemical Properties Of Egusi Melon Seed Oilsupporting

confidence: 92%

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Investigating “Egusi” (Citrullus Colocynthis L.) Seed Oil as Potential Biodiesel Feedstock

2010

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Biodiesel's acceptance as a substitute for fossil-derived diesel has grown the world over. However, the food-fuel debate over conventional vegetable oils has rekindled research interest in exploring lesser known and minor oil crops. In this work, egusi melon seed oil was studied for the first time as a potential feedstock for biodiesel production. Crude egusi melon seed oil was transesterified using sodium methoxide as the catalyst at 60 °C and an oil/methanol ratio of 1:6 to produce its corresponding methyl esters. Egusi melon oil methyl ester (EMOME) yield was 82%. Gas chromatographic analysis of EMOME showed that it was composed mainly of palmitic, stearic, oleic, linoleic and linolenic esters, which is similar to the profile of sunflower, soybean and safflower oil. All the measured fuel properties of EMOME satisfied both the ASTM D6751 and the EN 14214 biodiesel standards. Fuel properties of EMOME were essentially identical with those of soybean, safflower and sunflower biodiesel. Remarkably, the kinematic viscosity of EMOME was measured to be 3.83 mm 2 /s, a value lower than most biodiesel fuels reported in the literature. The potential of egusi melon seed oil as a biodiesel feedstock is clearly presented in this study. OPEN ACCESSEnergies 2010, 3 608

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Section: Physicochemical Properties Of Egusi Melon Seed Oilsupporting

confidence: 92%

“…It was found that EMSO composed of six fatty acids: palmitic, palmitoleic, stearic, oleic, linoleic and linolenic acids. The fatty acid composition of the EMSO was in close agreement with previous studies [22,23,25]. Of the six fatty acids, linoleic acid is the most prevalent with the value of 61.41%.…”

Section: Fatty Ester Compositionsupporting

confidence: 91%

Investigating “Egusi” (Citrullus Colocynthis L.) Seed Oil as Potential Biodiesel Feedstock

2010

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“…The content of unsaponifiable matter in the seeds decreased slightly from 1.8% to 1.0%. The quantity of unsaponifiable matter in the mature seeds was higher than that shown in previous publications (Al-Khalifa, 1996).…”

Section: Changes In the Lipid Composition Of Pumpkin Seeds During Thecontrasting

confidence: 74%

“…The content of linoleic acid is higher than the other fatty acids and varies from 35.7% to 56.6% followed by oleic acid (14.8-38.1%), palmitic acid (10.7-16.4%) and stearic acid (4.7-11.1%) (Achu et al, 2006;Al-Khalifa, 1996;Kim et al, 2012).…”

Section: Fatty Acid Compositionmentioning

confidence: 97%

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Changes in the composition of pumpkin seeds (<em>Cucurbita moschata</em>) during development and maturation

Petkova¹,

Antova²

2015

Grasas y Aceites

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SUMMARY:Changes in the chemical and lipid composition of Cucurbita moschata seeds and seed oils at different stages of development were investigated. The oil content of the seeds at 30, 60 and 90 days after flowering was 10.7, 41.1, and 47.1%, respectively. The amount of proteins was 26.0, 35.9, and 38.2%. The contents of carbohydrates soluble in ethanol were 9.5, 1.8 and 1.3%. The starch and fiber percentage contents were 16.3, 6.8, 2.3 and 4.0, 6.9 and 10.0, respectively and the ash contents were 7.2, 4.7, and 4.5%. The total sterol percentages were found to be 2.0, 0.8 and 0.6 in the oils and 0.2, 0.3 and 0.3 in the seeds. The tocopherol contents were 2010, 512 and 527 mg·kg −1 in the oil, and 215, 210 and 250 mg·kg −1 in the seeds. The total phospholipid percentages were 8.7, 0.8 and 0.4 in the oils and 0.9, 0.3 and 0.2 in the seeds. Fatty acid composition was determined by gas chromatography and the major fatty acids in the oils at all stages of ripening were linoleic (40.8-50.2%) followed by palmitic (21.5-25.9%) and oleic (20.5-21.0%).KEYWORDS: Chemical composition; Cucurbita moschata; Fatty acids; Phospholipids; Seeds developing; Sterols; Tocopherols RESUMEN: Cambios en la composición de las semillas de calabaza (Cucurbita moschata) durante el desarrollo y la maduración. Se determinaron los cambios en la composición química y en los lípidos de semillas de Cucurbita moschata así como en los aceites extraídos en diferentes etapas del desarrollo de las semillas. El contenido de aceite a los 30, 60 y 90 días después de la floración fue de 10,7, 41,1 y 47,1%, respectivamente. La cantidad de proteínas fue del 26,0, 35,9 y 38,2% y el contenido de hidratos de carbono solubles en etanol fue de 9,5, 1,8 y 1,3%. Los contenidos de almidón y fibras fueron 16,3, 6,8, 2,3% y 4,0, 6,9 y 10,0%, respectivamente y el contenido de cenizas fue de 7.2%, 4.7% y 4.5%. Se encontró un contenido total de esteroles del 2,0, 0,8 y 0,6% en los aceites y de 0,2, 0,3 y 0,3% en las semillas. El contenido de tocoferoles fue 2010, 512 y 527 mg·kg −1 en el aceite, y 215, 210 y 250 mg·kg −1 en las semillas. Los contenidos de fosfolípidos totales fueron de 8,7, 0,8 y 0,4% en los aceites y 0,9, 0,3 y 0,2% en las semillas. La composición de ácidos grasos determinada mediante cromatografía de gases mostró como principal ácido graso de los aceites en todas las etapas de maduración al linoleico (40,8 a 50,2%), seguido por palmítico (21,5 a 25,9%) y oleico (20,5 a 21,0%).

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Health Benefits from Pomegranates and Stone Fruit, Including Plums, Peaches, Apricots and Cherries

Tomás‐Barberán

Ruiz

Valero

et al. 2013

Bioactives in Fruit

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Physicochemical Characteristics, Fatty Acid Composition, and Lipoxygenase Activity of Crude Pumpkin and Melon Seed Oils

Cited by 118 publications

References 12 publications

Investigating “Egusi” (Citrullus Colocynthis L.) Seed Oil as Potential Biodiesel Feedstock

Investigating “Egusi” (Citrullus Colocynthis L.) Seed Oil as Potential Biodiesel Feedstock

Changes in the composition of pumpkin seeds (<em>Cucurbita moschata</em>) during development and maturation

Health Benefits from Pomegranates and Stone Fruit, Including Plums, Peaches, Apricots and Cherries

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