| Beide Seiten der vorigen RevisionVorhergehende ÜberarbeitungNächste Überarbeitung | Vorhergehende Überarbeitung |
| sinapis_alba_l [2015/01/26 09:57] – andreas | sinapis_alba_l [2018/01/14 09:06] (aktuell) – andreas |
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| "4-Hydroxybenzoylcholine has been identified and found to be one of the quantitatively dominating choline esters in seed extracts of S. alba. The identity of the new natural product has been confirmed by comparison with synthetic reference compounds. Several different choline esters are present in this plant but in extracts of seedlings, leaves, and inflorescences they are not so quantitatively dominating as in seeds." \\ | "4-Hydroxybenzoylcholine has been identified and found to be one of the quantitatively dominating choline esters in seed extracts of S. alba. The identity of the new natural product has been confirmed by comparison with synthetic reference compounds. Several different choline esters are present in this plant but in extracts of seedlings, leaves, and inflorescences they are not so quantitatively dominating as in seeds." \\ |
| 4-Hydroxybenzoylcholine: A natural product present in Sinapis alba., [Clausen, S., Olsen, O., Sørensen, H., Phytochemistry, Vol.21(4), 1982, 917-922] | [4-Hydroxybenzoylcholine: A natural product present in Sinapis alba., Clausen, S., Olsen, O., Sørensen, H., Phytochemistry, Vol.21(4), 1982, 917-922] |
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| "[[https://en.wikipedia.org/wiki/Sinalbin|Sinalbin]] occurs as a major glucosinolate in seeds of Sinapis alba L., in various mustards and other food products. The degradation products were identified and quantified by analysis based on a developed SFC method using a bare silica column. Determinations comprised transformation products of sinalbin, produced both during degradation of isolated sinalbin, and during autolysis of meal from S. alba seeds. The conditions in the developed SFC method were used as basis for the preparative SFC procedure applied for isolation of the components prior to their identification by nuclear magnetic resonance (NMR) spectroscopy. Myrosinase catalysed sinalbin hydrolysis resulted in the reactive 4-hydroxybenzyl isothiocyanate as an initial product at pH values from 3.5 to 7.5 whereas 4-hydroxybenzyl cyanide was one of the major products at low pH values. 4-Hydroxybenzyl isothiocyanate was found to disappear from the aqueous reaction mixtures in a few hours, as it reacted easily with available nucleophilic reagents. 4-Hydroxybenzyl alcohol was found as the product from reaction with water, and with ascorbic acid, 4-hydroxybenzylascorbigen was produced." \\ | "[[https://en.wikipedia.org/wiki/Sinalbin|Sinalbin]] occurs as a major glucosinolate in seeds of Sinapis alba L., in various mustards and other food products. The degradation products were identified and quantified by analysis based on a developed SFC method using a bare silica column. Determinations comprised transformation products of sinalbin, produced both during degradation of isolated sinalbin, and during autolysis of meal from S. alba seeds. The conditions in the developed SFC method were used as basis for the preparative SFC procedure applied for isolation of the components prior to their identification by nuclear magnetic resonance (NMR) spectroscopy. Myrosinase catalysed sinalbin hydrolysis resulted in the reactive 4-hydroxybenzyl isothiocyanate as an initial product at pH values from 3.5 to 7.5 whereas 4-hydroxybenzyl cyanide was one of the major products at low pH values. 4-Hydroxybenzyl isothiocyanate was found to disappear from the aqueous reaction mixtures in a few hours, as it reacted easily with available nucleophilic reagents. 4-Hydroxybenzyl alcohol was found as the product from reaction with water, and with ascorbic acid, 4-hydroxybenzylascorbigen was produced." \\ |
| [Acaricidal Constituents Isolated from Sinapis alba L. Seeds and Structure− Activity Relationships., Lim, J.H., Kim, H.W., Jeon, J.H., Lee, H.S., Journal of agricultural and food chemistry, Vol.56(21), 2008, 9962-9966] | [Acaricidal Constituents Isolated from Sinapis alba L. Seeds and Structure− Activity Relationships., Lim, J.H., Kim, H.W., Jeon, J.H., Lee, H.S., Journal of agricultural and food chemistry, Vol.56(21), 2008, 9962-9966] |
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| | {{:sinapis_alba.jpg?600}}\\ |
| {{http://www.plantillustrations.org/ILLUSTRATIONS_HD/31480.jpg?500}} \\ | Köhler, F.E., Medizinal Pflanzen, vol.3, t.18 (1890) \\ |
| Köhler, F.E., Medizinal Pflanzen, vol. 3: t. 18 (1890) \\ | |
| [[http://www.plantillustrations.org/species.php?id_species=949542]] | [[http://www.plantillustrations.org/species.php?id_species=949542]] |
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| | {{http://www.botanische-spaziergaenge.at/Bilder/Lumix_91/P1020875.JPG}} \\ |
| | Sinapis alba, © Rolf Marschner (2017), |
| | [[http://botanische-spaziergaenge.at/viewtopic.php?f=573&t=4772| www.botanische-spaziergaenge.at]] |
