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--- opuntia_ficus-indica_l._mill [2015/03/23 11:37]
andreas
+++ opuntia_ficus-indica_l._mill [2017/11/10 12:58] (aktuell)
andreas
@@ Zeile 12: / Zeile 12: @@
 [[http://www.ismea.it/flex/AppData/Redational/Normative/pubnaz/20040402000100206.pdf]]
-"Among the volatiles isolated by solvent extraction from cactus pear fruit (Opuntia ficus indica) and identified by HRGC–MS, selected chiral and achiral constituents were characterized by enantiodifferentiation and 13C/12C isotope ratio analysis, using multidimensional gas chromatography–mass spectrometry (MDGC–MS) and on-line gas chromatography–combustion isotope ratio mass spectrometry (HRGC-C-IRMS), respectively. While the enantiodistributions determined for methyl 2-methylbutanoate (98 : 2%, S : R), methyl 3-hydroxybutanoate (73 : 27%, R : S), 1-phenyl-ethanol (74 : 26%, R : S), linalool (68 : 32%, R : S), γ-nonalactone (65 : 35%, S : R), γ-decalactone (79 : 21%, R : S) and γ-dodecalactone (>99% R) can be discussed in relation to data previously provided for these compounds from various plant origins, the δ13C values of −22.0‰, −21.8‰, −19.1‰ and −20.9‰, measured for 1-hexanol, E-2-hexenol, E-2-nonenol and E,Z-2,6-nonadienol, respectively, are clear-cut indicators for their origin from plants with Crassulaceae acid metabolism (CAM), and thus may helpful for authenticity evaluations." \\
+|{{:ez26nonadienol.jpg| (E,Z)-2,6-nonadien-1-ol}} \\ (E,Z)-2,6-nonadien-1-ol \\ //(cucumber melon)// |{{:methyl_s2methylbutanoate.jpg| methyl (2S)-2-methylbutanoate}} \\ methyl (2S)-2-methylbutanoate \\ //(sweet fruity)// |
-[Cactus pear (Opuntia ficus indica) flavour constituents—chiral evaluation (MDGC–MS) and isotope ratio (HRGC–IRMS) analysis., Weckerle, B., Bastl‐Borrmann, R., Richling, E., Hör, K., Ruff, C., Schreier, P., Flavour and fragrance journal, Vol.16(5), 2001, 360-363]
-" The total amount of flavonoids of O. ficus-indica flowers was 81.75 mg/1 g of fresh plant material, with isorhamnetin 3-O-robinobioside being the major component (52.22%). The plant flowers volatiles composition was also characterized and a total of 18 components were identified. The main constituents were found to be germacrene D (12.6%), 1-hexanol (12.3%), n-tetradecane (9.1%) and decanal (8.2%)." \\
+"Among the volatiles isolated by solvent extraction from cactus pear fruit (Opuntia ficus indica) and identified by HRGC-MS, selected chiral and achiral constituents were characterized by enantiodifferentiation and 13C/12C isotope ratio analysis, using multidimensional gas chromatography-mass spectrometry (MDGC-MS) and on-line gas chromatography-combustion isotope ratio mass spectrometry (HRGC-C-IRMS), respectively. While the enantiodistributions determined for methyl 2-methylbutanoate (98 : 2%, S : R), methyl 3-hydroxybutanoate (73 : 27%, R : S), 1-phenyl-ethanol (74 : 26%, R : S), linalool (68 : 32%, R : S), γ-nonalactone (65 : 35%, S : R), γ-decalactone (79 : 21%, R : S) and γ-dodecalactone (>99% R) can be discussed in relation to data previously provided for these compounds from various plant origins, the δ13C values of −22.0‰, −21.8‰, −19.1‰ and −20.9‰, measured for 1-hexanol, E-2-hexenol, E-2-nonenol and E,Z-2,6-nonadienol, respectively, are clear-cut indicators for their origin from plants with Crassulaceae acid metabolism (CAM), and thus may helpful for authenticity evaluations." \\
-[Profiling the chemical content of Opuntia ficus-indica flowers by HPLC–PDA-ESI-MS and GC/EIMS analyses., De Leo, M., De Abreu, M.B., Pawlowska, A.M., Cioni, P.L., Braca, A., Phytochemistry Letters, Vol.3(1), 2010, 48-52]
+[Cactus pear (Opuntia ficus indica) flavour constituents—chiral evaluation (MDGC-MS) and isotope ratio (HRGC-IRMS) analysis., Weckerle, B., Bastl‐Borrmann, R., Richling, E., Hör, K., Ruff, C., Schreier, P., Flavour and fragrance journal, Vol.16(5), 2001, 360-363]
-{{:opuntia.jpg?500}} \\
+"The pulp is the edible part of the fruit and is composed of water (84% to 90%) and reducing sugars (10% to 15%). First of all, mention should be made of the high pH value (5.3 to 7.1) and the very low acidity (0.05% to 0.18% in citric acid) of the pulp, which strongly influences the processing operations... Opuntia ficus-indica (L) Mill., shows a vitamin C content ranging from 180 to 300 mg kg-1. Cactus pear is higher in vitamin C than other common fruits, such as apple, pear, grape, and banana, while other vitamins, such as carotenoids, thiamin, riboflavin, and niacin are in trace amounts... ascorbic acid accounted only for 30% to 40% of the
+total antioxidant capacity, despite its predominance." \\
+[[http://eprints.uniss.it/1571/1/Piga_A_Articolo_2004_Cactus.pdf]]
+"The total amount of flavonoids of O. ficus-indica flowers was 81.75 mg/1 g of fresh plant material, with isorhamnetin 3-O-robinobioside being the major component (52.22%). The plant flowers volatiles composition was also characterized and a total of 18 components were identified. The main constituents were found to be germacrene D (12.6%), 1-hexanol (12.3%), n-tetradecane (9.1%) and decanal (8.2%)." \\
+[Profiling the chemical content of Opuntia ficus-indica flowers by HPLC-PDA-ESI-MS and GC/EIMS analyses., De Leo, M., De Abreu, M.B., Pawlowska, A.M., Cioni, P.L., Braca, A., Phytochemistry Letters, Vol.3(1), 2010, 48-52]
+{{:opuntia.jpg?600}} \\
 Bessler, Basilius, Hortus Eystettensis, vol. 3: Quartus ordo collectarum plantarum autumnalium, t.362 (1620) [B. Besler] \\
 [[http://plantgenera.org/species.php?id_species=720233]]
+{{:opuntia_ficusindica.jpg}}\\
+Opuntia ficus-indica in Granada (Andalusia) \\
+[[https://commons.wikimedia.org/wiki/File:Opuntia_ficus-indica_Granada_GM.JPG|Wikimedia Commons]], author: Giorgiomonteforti (2009), © [[https://en.wikipedia.org/wiki/Public_domain|Public Domain]]

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