Seeds and oil of the Styrian oil pumpkin: Components and biological activities

Fruhwirth, Gilbert O.; Hermetter, Albin

doi:10.1002/ejlt.200700105

Cited by 140 publications

(112 citation statements)

References 71 publications

(84 reference statements)

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“…The presence of high amounts of linoleic acid also suggested that the analyzed PSOs could be used as a good source of essential fatty acids. High oleic acid contents, detected in all the analyzed oil samples, is also favorable from a cardio-protective and nutritional viewpoint (Fruhwirth et al, 2007).…”

Section: Discussionmentioning

confidence: 83%

Cold-pressed pumpkin seed (<em>Cucurbita pepo</em> L.) oils from the central Anatolia region of Turkey: Characterization of phytosterols, squalene, tocols, phenolic acids, carotenoids and fatty acid bioactive compounds

et al. 2018

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SUMMARY:There is a growing interest in cold-pressed oils because they present high contents of bioactive compounds. These oils have the characteristic properties of seeds and are specific products of their regions. The aim of this study was to determine the compositions and contents of fatty acids, phytosterols, squalene, tocols, phenolic acids, carotenoids and phenolic bioactives, and the free radical scavenging as well as antioxidant activities of coldpressed pumpkin (Cucurbita pepo L.) seed oils. Oil samples from raw pumpkin seeds cultivated in four different central Anatolia regions of Turkey were prepared using a laboratory screw-pressing machine. The results indicate that coldpressed pumpkin seed oils (PSO) have excellent quality with high contents of polyunsaturated fatty acids (%∑PUFAs) (53.60 ±0.06−53.73 ±0.05), total phytosterols (782.1±9.7-805.2 ±11.3 mg/100 g oil), squalene (591.3±10.6-632.5±11.4 mg/100 g oil), tocols (97.79 ±0.76−94.29 ±0.34 mg/100 g oil), phenolic acids (22.73 ±0.41-23.98 ±0.46 mg/100 g oil), carotenoids (6.95 ±0.03-7.60 ±0.03 mg/100 g oil), total phenolics (3.96 ±0.13 -5.82±0.15 mg GAE/100 g), free radicalscavenging activity (5.70 ±0.13−7.35 ±0.15 mg GAE/100 g) and total antioxidant activity (26.67±0.97−38.89±1.41 mg GAE/100 g) values. Thus, this study demonstrates that the cold-pressed PSOs from the central Anatolia regions of Turkey are an excellent source of natural bioactive compounds, free of chemical contaminants and nutritious.KEYWORDS: Antioxidant activity; Bioactive compound; Cold-pressed oil; Cucurbita pepo L.; Phenolic acid; Tocol profile RESUMEN: Aceites de semillas de calabaza prensados en frío (Cucurbita pepo L.) de la región central de Anatolia en Turquía: Caracterización de fitosteroles, escualeno, tocoles, ácidos fenólicos, carotenoides y compuestos bioactivos de ácidos grasos. Existe un interés creciente en los aceites prensados en frío, ya que presentan altos contenidos de compuestos bioactivos. Estos aceites tienen las propiedades características de las semillas y son productos específicos de las regiones. El objetivo de este estudio fue determinar las composiciones y contenidos de ácidos grasos, fitoesteroles, escualeno, tocoles, ácidos fenólicos, carotenoides y bioactivos fenólicos, la actividad de eliminación de radicales libres, así como las actividades antioxidantes de aceites de semillas de calabaza prensados en frío (Cucurbita pepo L.). Las muestras de aceite de semillas de calabaza cultivadas en cuatro regiones diferentes de Anatolia central de Turquía se prepararon utilizando una máquina de laboratorio de prensado mediante tornillo. Los resultados indican que los aceites de semilla de calabaza prensados en frío (PSO) tienen una excelente calidad, con altos contenidos de ácidos grasos poliinsaturados (%ΣPUFA) (53,60±0,06-53,73±0,05), fitoesteroles totales (782,1±9,7-805,2±11,3 mg/100 g de aceite), escualeno (591,3 ± 10,6-632,5 ± 11,4 mg/100 g de aceite), tocols (97,79±0,76-94,29±0,34 mg/100 g de aceite), ácidos fenólicos (22,73 ± 0,41-23,98 ± 0.46 mg/10...

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Section: Discussionmentioning

confidence: 83%

Cold-pressed pumpkin seed (<em>Cucurbita pepo</em> L.) oils from the central Anatolia region of Turkey: Characterization of phytosterols, squalene, tocols, phenolic acids, carotenoids and fatty acid bioactive compounds

et al. 2018

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“…The daily intake of phenolic antioxidants has played an important role in reducing the risk of developing diseases, such as atherosclerosis, cardiovascular diseases, cancer, infections and Alzheimer's disease. They also present antimicrobial and antiviral action (Fruhwirth and Hermetter 2007) but, depending on the amount ingested, they can cause undesirable effects, such as inhibition of certain digestive enzymes, e. g. trypsin, forming complexes with proteins and decreasing their digestibility (Sathe 2002). In the literature, there is no consensus on the recommended intake of phenolic compounds; therefore, consumption levels considered acceptable were not found (Sathe, 2002;Peuckert et al, 2010;Marques et al, 2013).…”

Section: Institute Of Medicine Of the Natural Academies 2005a)mentioning

confidence: 99%

Cereal bars enriched with antioxidant substances and rich in fiber, prepared with flours of acerola residues

et al. 2014

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In the processing for obtaining acerola juice, a large amount of residues, which is usually discharged, is generated (seeds and bagasse). Adding value to these by-products is of great interest, since their use can enrich human food as a good source of nutrients and dietary fiber. In this study, acerola seed flours (ASF) and acerola bagasse flours (ABF) were used to develop cereal bars (CB) in different combinations with brown oats: CB 1: control -with the addition of 25% brown oats, CB 2: with the addition of 12.5% ASF and 12.5% ABF, CB 3: with the addition of 6.25% ASF and 18.75% ABF, CB 4: with the addition of 12.5% ASF and 12.5% brown oats and CB 5: with the addition of 12.5% ABF and 12.5% brown oats. These bars were sensorially evaluated and CB 1, CB 4 and CB 5 received the highest scores. We conclude that CB 4 and CB 5 can be considered as products with enhanced nutritional value, containing iron with a low energetic value and high levels of dietary fibre, besides being enriched with antioxidants.

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“…The medicinal features of the pumpkin (Cucurbita pepo L., Cucurbitaceae family) including anti-diabetic, antihypertensive, anti-tumour, immunomodulatory, antibacterial, intestinal anti-parasitic, and anti-inflammatory activities have been described in several studies (Caili et al, 2006;Fruhwirth and Hermetter, 2007;Danilcenko et al, 2011). Notably, pumpkin seeds are rich in proteins and biologically active substances, including essential and nonessential amino acids, tocopherols, carotenoids (especially β-carotene and lutein), mineral elements, fibre, and other compounds considered to exhibit valuable dietetic and medicinal properties (Caili et al, 2006;Glew et al, 2006;Nakic et al, 2006;Fruhwirth and Hermetter, 2007;Stevenson et al, 2007;Kreft et al, 2009;Badr et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

“…Notably, pumpkin seeds are rich in proteins and biologically active substances, including essential and nonessential amino acids, tocopherols, carotenoids (especially β-carotene and lutein), mineral elements, fibre, and other compounds considered to exhibit valuable dietetic and medicinal properties (Caili et al, 2006;Glew et al, 2006;Nakic et al, 2006;Fruhwirth and Hermetter, 2007;Stevenson et al, 2007;Kreft et al, 2009;Badr et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Antioxidant Activity and other Quality Parameters of Cold Pressing Pumpkin Seed Oil

Kulaitienė

Černiauskienė

Jarienė

et al. 2018

Not Bot Horti Agrobo

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Pumpkin seeds oil are rich in biologically active substances such as a source of tocopherols, carotenoids, especially β-carotene, lutein and other compounds. Also four fatty acids -palmitic, stearic, oleic and linoleic, dominated in the oil of pumpkin seeds oil. The study mainly aimed to evaluate the fatty acid contents and antioxidant parameters of seed oils isolated from different pumpkin cultivars. Investigations of seeds oil from Cucurbita pepo L. 'Miranda', 'Golosemianaja', and 'Herakles' pumpkin cultivars grown in Lithuania revealed that crude fat contents ranged from 44.4% to 47.3%, although 'Miranda' cultivar seeds consistently and significantly had the lowest content. The seed oils contained appreciable amounts of unsaturated fatty acids (approximately 83%), of which polyunsaturated fatty acids, particularly palmitic, stearic, oleic and linoleic acids, were dominant with values ranging from 64.29% to 66.71% of the total amount of fatty acids. The seeds oil were a particularly rich source of linoleic acid (66%), among which 'Miranda' cultivar seeds had the significantly highest content. Our investigation identified that pumpkin seeds oil as a good source of phenolic compounds, particularly cvs. 'Golosemianaja' and 'Miranda' oil. Methanolic seed oil extracts were characterized by statistically significant differences in their antioxidant activity, with the highest antioxidant activity found in cultivar 'Miranda', followed by 'Golosemianaja'. The antioxidant activity level increased proportionally with the total phenolic content, thus establishing a linear relationship between DPPHradical scavenging activity and total phenolic content.

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Seeds and oil of the Styrian oil pumpkin: Components and biological activities

Cited by 140 publications

References 71 publications

Cold-pressed pumpkin seed (<em>Cucurbita pepo</em> L.) oils from the central Anatolia region of Turkey: Characterization of phytosterols, squalene, tocols, phenolic acids, carotenoids and fatty acid bioactive compounds

Cold-pressed pumpkin seed (<em>Cucurbita pepo</em> L.) oils from the central Anatolia region of Turkey: Characterization of phytosterols, squalene, tocols, phenolic acids, carotenoids and fatty acid bioactive compounds

Cereal bars enriched with antioxidant substances and rich in fiber, prepared with flours of acerola residues

Antioxidant Activity and other Quality Parameters of Cold Pressing Pumpkin Seed Oil

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