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hibiscus_sabdariffa_l
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hibiscus_sabdariffa_l [2016/01/03 11:47] andreas |
hibiscus_sabdariffa_l [2021/09/14 19:46] (aktuell) andreas |
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| - | Hibiscus sabdariffa L. - Malvaceae - red sorrel, Jamaica sorrel, roselle, **Roselle**, | + | Hibiscus sabdariffa L. - Malvaceae - red sorrel, Jamaica sorrel, roselle, **Roselle**, |
| - | Erect annual herb, up to 2m tall, probably native to West Africa, cultivated and naturalized throughout tropics; stems robust, purplish; leaves dimorphic; blades on proximal part of stem ovate, those on distal part of stem palmately 3-lobed, lobes lanceolate; flowers solitary, axillary, calyx purplish, cup-shaped, corolla yellow with dark red center, 6-7cm in diameter. "The fleshy calyx and epicalyx are edible, both fresh as a vegetable and dried as a tea." | + | Erect annual herb, up to 2m tall, probably native to West Africa, cultivated and naturalized throughout tropics; stems robust, purplish; leaves dimorphic; blades on proximal part of stem ovate, those on distal part of stem palmately 3-lobed, lobes lanceolate; flowers solitary, axillary, calyx purplish, cup-shaped, corolla yellow with dark red center, 6-7cm in diameter. "The fleshy calyx and epicalyx are edible, both fresh as a vegetable and dried as a tea." [[http:// |
| - | [[http:// | + | |
| "The major pigment, which was formerly isolated from the calyx and bract of roselle (Hibiscus sabdariffa L.) by Yamamoto et al. (1933), was reported to have the structure of delphinidin pentosido-glucoside. It was newly examined and found that it consists of each 1mol of delphinidin (1mol), glucose and xylose. By a series of analytical procedure its structure must be delphinidin 3-xylosido-glucoside. So it was compared with daphniphyllin (delphinidin 3-xylosido-glucoside), | "The major pigment, which was formerly isolated from the calyx and bract of roselle (Hibiscus sabdariffa L.) by Yamamoto et al. (1933), was reported to have the structure of delphinidin pentosido-glucoside. It was newly examined and found that it consists of each 1mol of delphinidin (1mol), glucose and xylose. By a series of analytical procedure its structure must be delphinidin 3-xylosido-glucoside. So it was compared with daphniphyllin (delphinidin 3-xylosido-glucoside), | ||
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| [[http:// | [[http:// | ||
| + | Main volatile components of H.sabdariffa (headspace GC-MS) were furfural (31.6-38.6%) and cinnamal (13.8-14.1%). Olfactorly interesting minor components were e.g. benzaldehyde, | ||
| + | [Farag, Mohamed A., Dalia M. Rasheed, and Islam M. Kamal. " | ||
| + | [[https:// | ||
| - | {{http:// | + | {{:hibiscus_sabdariffa.jpg?600}} \\ |
| - | Panhuys, L. von, Watercolours of Surinam (1811-1824) | + | Panhuys, L. von, Watercolours of Surinam (1811-1824) \\ |
| [[http:// | [[http:// | ||
hibiscus_sabdariffa_l.1451818039.txt.gz · Zuletzt geändert: 2016/01/03 11:47 von andreas
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