Grapevine berry ripening induces peculiar changes of the lipid composition of the chloroplast membranes . By exploiting our lipidomics approach based on HPLC-MS/MS techniques we were able to detect a significant increase of oxidation products deriving from MGDG and DGDG galactolipids. This oxidation process implies the addition of an hydroperoxyl group (-OOH) to the a-linolenic acyl chains of the chloroplast galactolipids. Since the addition occurs as a regio-(position 13) and stereospecific (S absolute configuration) reaction, it implies the involvement of a specific lipooxygenase enzyme
Moser, C.; Pilati, S.; Guella, G. (2013). Changes in the chloroplast lipid composition during grapevine berry ripening through an LC-MS based lipidomics approach. In: F. Biasioli (editor), 3rd MS Food day, October 9-11, 2013, Trento. San Michele all'Adige (TN): Fondazione Edmund Mach: 105-106 (P.04). ISBN: 978-88-7843-035-8. handle: http://hdl.handle.net/10449/22755
Changes in the chloroplast lipid composition during grapevine berry ripening through an LC-MS based lipidomics approach
Moser, Claudio;Pilati, Stefania;
2013-01-01
Abstract
Grapevine berry ripening induces peculiar changes of the lipid composition of the chloroplast membranes . By exploiting our lipidomics approach based on HPLC-MS/MS techniques we were able to detect a significant increase of oxidation products deriving from MGDG and DGDG galactolipids. This oxidation process implies the addition of an hydroperoxyl group (-OOH) to the a-linolenic acyl chains of the chloroplast galactolipids. Since the addition occurs as a regio-(position 13) and stereospecific (S absolute configuration) reaction, it implies the involvement of a specific lipooxygenase enzyme
| File | Dimensione | Formato | |
|---|---|---|---|
|
2013 MS Food Day 105-106.pdf
non disponibili
Licenza:
Tutti i diritti riservati (All rights reserved)
Dimensione
112.65 kB
Formato
Adobe PDF
|
112.65 kB | Adobe PDF | Visualizza/Apri Richiedi una copia |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
