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Cucurbita pepo L. - Cucurbitaceae - marrow, pumpkin, squash, Gartenkürbis, Gemüsekürbis
Annual monoecious herb, decumbent or climbing, up to 10m long, native to North America (Mexico, US), widely cultivated; stem and petioles bristly; leaves five-lobed, ovate-triangular, both surfaces scabrous-hairy, base cordate, margin irregularly dentate; corolla yellow, campanulate, ca. 5×3cm; fruit variable in shape and size; seeds numerous, white, ovate. The fruits (pumpkins, marrows, zucchini…) are used as a vegetable. http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200022621
Styrian pumpkin seed oil is a viscous oil of light to very dark green to dark red colour, owning an intense nutty taste. It is made by pressing roasted, hulled pumpkin (Cucurbita pepo subsp. pepo var. Styriaca) seeds.
„Application of the aroma extract dilution analysis on a distillate prepared from an authentic Styrian pumpkin seed oil followed by identification experiments led to the characterization of 47 odor-active compounds in the flavor dilution (FD) factor range of 8-8192 among which 2-acetyl-1-pyrroline (roasty, popcorn-like), 2-propionyl-1-pyrroline (roasty, popcorn-like), 2-methoxy-4-vinylphenol (clove-like), and phenylacetaldehyde (honey-like) showed the highest FD factors… On the basis of the quantitative data and odor thresholds determined in sunflower oil, odor activity values (OAV; ratio of concentration to odor threshold) were calculated, and 26 aroma compounds were found to have an OAV above 1. Among them, methanethiol (sulfury), 2-methylbutanal (malty), 3-methylbutanal (malty), and 2,3-diethyl-5-methylpyrazine (roasted potato) reached the highest OAVs. Sensory evaluation of an aroma recombinate prepared by mixing the 31 key odorants in the concentrations as determined in the oil revealed that the aroma of Styrian pumpkin seed oil could be closely mimicked.“
[Characterization of the aroma signature of styrian pumpkin seed oil (Cucurbita pepo subsp. pepo var. Styriaca) by molecular sensory science., Poehlmann, S., Schieberle, P., Journal of agricultural and food chemistry, 61(12), 2013, 2933-2942]
The seeds of C.pepo subsp.pepo (especially var.styriaca and var.oleifera; pumpkin seed, Cucurbitae semen, Kürbissamen) and preparations thereof are used to treat benign prostatic hyperplasia (BPH) and related lower urinary tract symptoms (LUTS) regarding urinary retention, frequent urination, nocturia, incomplete emptying, intermittency, urgency, weakness of the urinary stream.
[Teedrogen, Max Wichtl, 2016, 207-209]