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berberis_japonica_thunb._r._br [2017/04/04 15:59]
andreas
berberis_japonica_thunb._r._br [2017/04/04 23:46] (aktuell)
andreas
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 [[https://​de.wikipedia.org/​wiki/​Japanische_Mahonie]] [[https://​de.wikipedia.org/​wiki/​Japanische_Mahonie]]
  
-GC/MS analysis of floral volatiles of M.japonica collected on PDMS/​carbotrap ​and Porapak Q showed the main components (E)-β-ocimene (57.0%), (Z)-β-ocimene (3.5%), benzyl alcohol (14.0%), citronellol (6.7%), benzaldehyde (4.1%), indole (2.6%), linalool (2.2%), and geraniol (1.3%). Minor components were cis-roes oxide (0.5%), 2-phenyl ethanol (0.5%), heptanal (0.1%), nonanal (0.1%), decanal (0.2%), citronellal (0.1%), cinnamic aldehyde, cinnamic alcohol, methyl geranate (0.4%), and β-farnesene (0.1%) e.g. among many other compounds present in traces. \\ +GC/MS analysis of floral volatiles of M.japonica collected on PDMS/​carbotrap ​as well as Porapak Q showed the main components (E)-β-ocimene (57.0%), (Z)-β-ocimene (3.5%), benzyl alcohol (14.0%), citronellol (6.7%), benzaldehyde (4.1%), indole (2.6%), linalool (2.2%), and geraniol (1.3%). Minor components were cis-rose oxide (0.5%), 2-phenyl ethanol (0.5%), heptanal (0.1%), nonanal (0.1%), decanal (0.2%), citronellal (0.1%), cinnamic aldehyde, cinnamic alcohol, methyl geranate (0.4%), and β-farnesene (0.1%) e.g. among many other compounds present in traces. \\ 
 "An experiment with photoperiods of 6 and 9 h at constant temperature (10±1 °C) demonstrated that photoperiod was the stimulus for enhanced emission of most volatiles. Small quantitative differences in emitted fragrance composition were observed between light and dark periods and between plants acclimatised to different photoperiods. Maximum rates of emission occurred in the middle of the light period; aromatic compounds (benzaldehyde,​ benzyl alcohol and indole) displayed a more rapid increase and subsequent decline compared with monoterpenes (cis- and trans-ocimene and linalool). When the photoperiod was extended from 6 to 9 h, maximum rates of emission continued throughout the additional 3 h. Total emission (μg/h) of volatiles was 2-fold greater in the day-time (DT) (39.7 μg/h) compared with the night-time (NT) (19.8 μg/h) under a 6 h photoperiod and was not significantly different from total emission under a 9 h photoperiod."​ \\ "An experiment with photoperiods of 6 and 9 h at constant temperature (10±1 °C) demonstrated that photoperiod was the stimulus for enhanced emission of most volatiles. Small quantitative differences in emitted fragrance composition were observed between light and dark periods and between plants acclimatised to different photoperiods. Maximum rates of emission occurred in the middle of the light period; aromatic compounds (benzaldehyde,​ benzyl alcohol and indole) displayed a more rapid increase and subsequent decline compared with monoterpenes (cis- and trans-ocimene and linalool). When the photoperiod was extended from 6 to 9 h, maximum rates of emission continued throughout the additional 3 h. Total emission (μg/h) of volatiles was 2-fold greater in the day-time (DT) (39.7 μg/h) compared with the night-time (NT) (19.8 μg/h) under a 6 h photoperiod and was not significantly different from total emission under a 9 h photoperiod."​ \\
 [Picone, Joanne M., Hazel S. MacTavish, and Robin A. Clery. "​Emission of floral volatiles from Mahonia japonica (Berberidaceae)."​ Phytochemistry 60.6 (2002): 611-617] [Picone, Joanne M., Hazel S. MacTavish, and Robin A. Clery. "​Emission of floral volatiles from Mahonia japonica (Berberidaceae)."​ Phytochemistry 60.6 (2002): 611-617]
berberis_japonica_thunb._r._br.txt · Zuletzt geändert: 2017/04/04 23:46 von andreas