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jasminum_sambac_l._aiton [2021/06/07 23:06]
andreas |
jasminum_sambac_l._aiton [2021/11/15 10:57] (aktuell)
andreas |
| "The composition of the volatile fraction of Egyptian Jasminum sambac (L.) Ait. (Family: Oleaceae) flowers picked in July (the climax of the flowering season), was studied using GC/MS. The flowers’ concrete headspace (HS) volatiles had been analyzed by SPME (solid phase microextraction) and compared with those from the flowers’ absolute. The main volatile constituents of the concrete HS and the absolute, respectively, were: benzyl acetate (23.7 and 14.2%), indole (13.1 and 13.4%), (E,E)-α-farnesene (15.9 and 13.1%), (Z)-3-hexenyl benzoate (4.9 and 9.4%), benzyl alcohol (7.7 and 8.4%), linalool (10.6 and 6.3%), and methyl anthranilate (5.0 and 4.7%). The major volatile constituents of Egyptian J. sambac absolute are almost qualitatively similar but quantitatively different from those grown in other geographical regions. The proportion of some major volatile constituents at this investigation are also different from those reported in a previous investigation for Egyptian J. sambac. The study also revealed that, headspace-solid phase microextraction (HS-SPME), equipped with a polydimethylsiloxane (PDMS) fiber, can give an indication about the composition of some of the major volatile constituents of J. sambac, e.g., indole, methyl anthranilate and E-E-α-farnesene, directly from the concrete HS." \\ | "The composition of the volatile fraction of Egyptian Jasminum sambac (L.) Ait. (Family: Oleaceae) flowers picked in July (the climax of the flowering season), was studied using GC/MS. The flowers’ concrete headspace (HS) volatiles had been analyzed by SPME (solid phase microextraction) and compared with those from the flowers’ absolute. The main volatile constituents of the concrete HS and the absolute, respectively, were: benzyl acetate (23.7 and 14.2%), indole (13.1 and 13.4%), (E,E)-α-farnesene (15.9 and 13.1%), (Z)-3-hexenyl benzoate (4.9 and 9.4%), benzyl alcohol (7.7 and 8.4%), linalool (10.6 and 6.3%), and methyl anthranilate (5.0 and 4.7%). The major volatile constituents of Egyptian J. sambac absolute are almost qualitatively similar but quantitatively different from those grown in other geographical regions. The proportion of some major volatile constituents at this investigation are also different from those reported in a previous investigation for Egyptian J. sambac. The study also revealed that, headspace-solid phase microextraction (HS-SPME), equipped with a polydimethylsiloxane (PDMS) fiber, can give an indication about the composition of some of the major volatile constituents of J. sambac, e.g., indole, methyl anthranilate and E-E-α-farnesene, directly from the concrete HS." \\ |
| [Isolation and characterization of the volatile aroma compounds from the concrete headspace and the absolute of Jasminum sambac (L.) Ait.(Oleaceae) flowers grown in Egypt., Edris, A.E., Chizzola, R., Franz, C., European Food Research and Technology, Vol.226(3), 2008, 621-626] | [Isolation and characterization of the volatile aroma compounds from the concrete headspace and the absolute of Jasminum sambac (L.) Ait.(Oleaceae) flowers grown in Egypt., Edris, A.E., Chizzola, R., Franz, C., European Food Research and Technology, Vol.226(3), 2008, 621-626] |
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| | The odor of Jasmine sambac absolute from South India has been described as "Premium very natural jasmine quality with a fresh floral, slightly fruity top note and a distinct green complex reminiscent of fresh flower buds; body slightly fatty with a touch of violet, orange flower and nuances of green, sweet balsamic and a pronounced indolic note; after one week at the smelling strip animalic-cresolic with a slight touch of honey." Main ingredients of the vaccum headspace were (Z)-3-hexenyl acetate (10.6%), (Z)-3-hexenol (7.6%), (2E,6E)-α-farnesene (4.2%), methyl anthranilate (3.3%), methyl benzoate (2.3%), benzyl cyanide (2.1%), and (E)-2-hexenal (1.6%). "The amount of phenylacetaldehyde oxime in J.sambac absolute seems to vary significantly depending probably on geographical origin of the raw material (India: 0.2%, Egypt 3.4% [6a])." \\ |
| | [Braun, Norbert A., et al. "Jasminum flexile Flower Absolute from India–a Detailed Comparison with Three Other Jasmine Absolutes." Natural product communications 4.9 (2009): 1934578X0900400917.] |
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| |{{:benzylacetate.jpg|benzyl acetate}} \\ benzyl acetate | {{:indole.jpg| indole}} \\ indole |{{:methylanthranilate.jpg| methyl anthranilate}} \\ methyl anthranilate | {{:jasmone_cis.jpg| (Z)-jasmone}} \\ (Z)-jasmone | | |{{:benzylacetate.jpg|benzyl acetate}} \\ benzyl acetate | {{:indole.jpg| indole}} \\ indole |{{:methylanthranilate.jpg| methyl anthranilate}} \\ methyl anthranilate | {{:jasmone_cis.jpg| (Z)-jasmone}} \\ (Z)-jasmone | |
