A 24β-ethyl-Δ7-steryl glucopyranoside from Cucurbita pepo seeds

Rauwald, Hans-Willi; Sauter, Michael J.; Schilcher, H.

doi:10.1016/s0031-9422(00)80716-5

Cited by 11 publications

(5 citation statements)

References 11 publications

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“…However, these authors did not analyze the carbohydrate-bound phytosterols that have also been found in the seeds of Cucurbita pepo spp. D7-Sterols exist also bound to b-Dglucopyranosides from which they can be released by acid hydrolysis [36].…”

Section: Phytosterolsmentioning

confidence: 99%

“…These results do not strengthen the hypothesis that free D7-phytosterols are effective agents for the treatment for BHP. However, it is very important to emphasize that D7-phytosterols in pumpkin seeds are also esterified to various sugar molecules [36], which could improve their bioavailability. As a consequence, (polar) Styrian oil pumpkin seed extracts can be expected to have more pronounced effects than lipid extracts of Styrian pumpkin seed oil.…”

Section: Benign Prostate Hyperplasiamentioning

confidence: 99%

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

Fruhwirth

Hermetter

2007

Euro J Lipid Sci & Tech

137

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Cucurbita pepo subsp. pepo var. Styriaca is a phylogenetically young member of the Cucurbita spp. since the mutation leading to dark green seeds with stunted outer hulls arose only in the 19th century. This mutation defined the so‐called Styrian oil pumpkin and facilitated the production of Styrian pumpkin seed oil. It is a regional specialty oil in the south‐eastern part of Europe. In this article, we describe the production and economic value of this edible oil as well as its composition on a molecular basis, including fatty acids, vitamins, phytosterols, minerals, polyphenols, and the compounds responsible for its pigments, taste and flavor. We also describe contaminants of Styrian pumpkin seed oil and the most relevant field pests of the Styrian oil pumpkin plant. Finally, we review the putative beneficial health effects of Styrian oil pumpkin seeds and of their products.

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Section: Phytosterolsmentioning

confidence: 99%

Section: Benign Prostate Hyperplasiamentioning

confidence: 99%

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

Fruhwirth

Hermetter

2007

Euro J Lipid Sci & Tech

137

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“…Dietary uptake of phytosterols appears to be as important in cholesterol lowering as a reduction in consumption of saturated fats. Since glycosylated and free phytosterols were found in the seeds [48], but only the more lipophilic free phytosterols have been detected in the oil, it can be speculated that the latter, together with the high content of linoleic acid, can exert beneficial health effects in lipid-associated disorders like atherosclerosis.…”

Section: Styrian Pumpkin Seed Oil In Health and Diseasementioning

confidence: 99%

Production technology and characteristics of Styrian pumpkin seed oil

Fruhwirth

Hermetter

2008

Euro J Lipid Sci & Tech

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Cucurbita pepo subsp. pepo var. Styriaca, the so‐called Styrian oil pumpkin, is a phylogenetically young member of the Cucurbita spp. A single mutation occurred only in the 19th century and led to dark green seeds with stunted outer hulls. This mutation facilitated the production of Styrian pumpkin seed oil that became a regional specialty oil in the south‐eastern part of Europe during the last few decades. We describe in this article the production and economic value of this edible specialty oil as well as the most important parameters relevant for its quality. Furthermore, we report on its molecular composition including fatty acids, vitamins, phytosterols, minerals, polyphenols, and those compounds that are responsible for its color, taste and flavor. Finally, information is provided on potential contaminants of Styrian pumpkin seed oil as well as its putative beneficial health effects.

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“…compounds are steroid glucosides. 11,12 All the other signals are compatible with the structure of 3a and 3b. The steroid 3a has been isolated from Clerodendron colebrookianum (Verbenaceae).…”

Section: Resultsmentioning

confidence: 54%

Steroids and flavonoids of Porcelia macrocarpa

Chaves¹,

Roque²,

Ayres³

2004

J. Braz. Chem. Soc.

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Três misturas de esteróides (1a+1b, 2a+2b e 3a+3b) e dois flavonóides glicosilados (4 e 5) foram isolados do extrato etanólico dos galhos da Porcelia macrocarpa (Warm.) R. E. Fries (Annonaceae). Os esteróides Estigmasta-4,25-dien-3-ona (2a) e (22E)-Estigmasta-4,22,25-trien-3-ona (2b) são substâncias novas. As estruturas foram determinadas com base na análise de dados espectrais de RMN e de massas e por comparação com dados de substâncias da literatura usadas como modelos.Three mixtures of steroids (1a+1b, 2a+2b and 3a+3b) and two flavonoid glycosides (4 and 5) were isolated from the ethanol extract of branches of Porcelia macrocarpa (Warm.) R. E. Fries (Annonaceae). The steroids Stigmasta-4,25-dien-3-one (2a) and (22E)-Stigmasta-4,22,25-trien-3-one (2b) are news. The structures were elucidated by NMR and MS data and comparison with literature data of model compounds.

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A 24β-ethyl-Δ7-steryl glucopyranoside from Cucurbita pepo seeds

Cited by 11 publications

References 11 publications

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

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

Production technology and characteristics of Styrian pumpkin seed oil

Steroids and flavonoids of Porcelia macrocarpa

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