| Autor: |
De Nicola GR; Research Centre for Vegetables and Ornamental Crops, Council for Agricultural Research and Economics (CREA), Via dei Fiori 8, 51017 Pescia, Italy., Montaut S; School of Natural Sciences, Laurentian University, 935 Ramsey Lake Road, Sudbury, ON P3E 2C6, Canada., Leclair K; School of Natural Sciences, Laurentian University, 935 Ramsey Lake Road, Sudbury, ON P3E 2C6, Canada., Garrioux J; Terres Inovia, 270 Avenue de la Pomme de Pin, BP 90635, Ardon, 45166 Olivet, France., Guillot X; Laboulet Semences, 80270 Airaines, France., Rollin P; Institute of Organic and Analytical Chemistry (ICOA), Université d'Orléans, UMR 7311, BP 6759, F-45067 Orléans, Cedex 2, France. |
| Abstrakt: |
Lunaria annua L. (Brassicaceae) is an ornamental plant newly identified in Europe as a promising industrial oilseed crop for its valuable very-long-chain monounsaturated fatty acids (MUFAs), especially erucic acid (EA) and nervonic acid (NA). L. annua seeds were obtained from annual winter-type plants selected and cultivated in Northern France. Using a systematic multiple-method approach, we set out to determine the profile and content of glucosinolates (GSLs), which are the relevant chemical tag of Brassicaceae. Intact GSLs were analyzed through a well-established LC-MS method. Identification and quantification were performed by HPLC-PDA of desulfo-GSLs (dGLs) according to the official EU ISO method. Moreover, GSL structures were confirmed by GC-MS analysis of the related isothiocyanates (ITCs). Seven GSLs were identified, directly or indirectly, as follows: 1-methylethyl GSL, (1 S )-1-methylpropyl GSL, ( Rs )-5-(methylsulfinyl)pentyl GSL, ( Rs )-6-(methylsulfinyl)hexyl GSL, (2 S )-2-hydroxy-4-pentenyl GSL, 2-phenylethyl GSL, and 1-methoxyindol-3-ylmethyl GSL. In other respects, the FA composition of the seed oil was determined. Results revealed cultivated L. annua seed to be a source of NA-rich oil, and presscake as a valuable coproduct. This presscake is indeed rich in GSLs (4.3% w / w ), precursors of promising bioactive molecules for agricultural and nutraceutical applications. |
