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Passiflora alata Curtis - Passifloraceae - winged-stem passion flower, sweet passion fruit

Evergreen vine, native to the Amazon (Peru to eastern Brazil).

„The local peoples refer to it as ouvaca, meaning „red star“ due to the appearance of its flower. Other names include fragrant grenadilla, and maracuja de refresco. The specific epithet alata means „winged“, referring to the 4-winged stems.“
https://en.wikipedia.org/wiki/Passiflora_alata

GC-MS analysis of the flower scent: „This fragrance consists primarily of terpenoids (81.8%), benzenoids and phenylpropanoids (7.9%) and aliphatic compounds (7.6%). Linalool (40.2%) and citronellol (22.4%) were the main constituents of fragrance. Olfactive description: rich and very interesting mix of white flower, fresh rose and very powerful citrus fruity notes and sub notes of honey with a creamy velvet undertone. This was a very elegant fragrance which cached our attention for further research.“
Olfactorly interesting components were e.g. allyl acetate (0.9%), benzyl alcohol (1.2%), 1,4-dimethoxybenzene (6.2%), citronellal (0.4%), nerol (0.3%), geraniol (1.4%), neral (4.5%9, geranial (7.8%), and methyl geranate (2.0%).
[Montero, Daniel AV, et al. „Floral scent of brazilian Passiflora: five species analised by dynamic headspace.“ Anais da Academia Brasileira de Ciências 88.3 (2016): 1191-1200]
https://www.scielo.br/scielo.php?pid=S0001-37652016005014101&script=sci_arttext

Fruit: „Its aroma is quite distinct from other passion fruits and, in addition to being aromatic, its pulp contains higher sugar and lower organic acids concentrations compared to traditional commercial passion fruit species, which makes it sweeter and less sour. For this reason, sweet passion fruit has been highly appreciated for fresh consumption as a dessert, for example, rather than mainly for juice consumption as with other passion fruit species… In the present study, for the first time, the volatile composition of sweet passion fruit was investigated… Methyl butanoate, methyl (E)-2-butenoate, ethyl butanoate, ethyl (E)-2-butenoate, methyl 2-hexenoate, and ethyl-2-hexenoate were among major compounds.“
[Mamede, Alexandra MGN, et al. „Volatile composition of sweet passion fruit (Passiflora alata Curtis).“ Journal of Chemistry 2017 (2017)] https://downloads.hindawi.com/journals/jchem/2017/3497216.pdf

Passiflora alata; Curtis, W., et al., Botanical Magazine (Curtis), vol. 2: t. 66 (1788)
http://www.plantillustrations.org/species.php?id_species=753820

„Passiflora alata i parken Terra Nostra, Furnas, Azorerna.“
CC BY-SA 3.0, Author: C T Johansson https://commons.wikimedia.org/wiki/File:Passiflora_alata-IMG_9718.JPG