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Article Dans Une Revue Analytical and Bioanalytical Chemistry Année : 2017

Use of qNMR for speciation of flaxseeds (Linum usitatissimum) and quantification of cyanogenic glycosides

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Résumé

This report describes a routine method taking less than 20 min to quantify cyanogenic glycosides such as linustatin and neolinustatin from flaxseeds (Linum usitatissimum L.) using H-1 nuclear magnetic resonance. After manual dehulling, a higher linustatin content was shown in the almond fraction, while neolinustatin and total cyanogenic glycoside contents were significantly higher in hulls. Linustatin and neolinustatin were quantified in seven cultivars grown in two locations in three different years. Linustatin, neolinustatin, and total cyanogenic glycosides ranged between 91 and 267 mg/100 g, 78-272 mg/100 g, and 198-513 mg/100 g dry weight flaxseeds, respectively. NMR revealed differences of up to 70% between samples with standard deviation variations lower than 6%. This study shows that NMR is a very suitable tool to perform flaxseed varietal selection for the cyanogenic glycoside content.
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Dates et versions

hal-03609609 , version 1 (15-03-2022)

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Citer

Romain Roulard, Jean-Xavier Fontaine, Arash Jamali, Dominique Cailleu, Reynald Tavernier, et al.. Use of qNMR for speciation of flaxseeds (Linum usitatissimum) and quantification of cyanogenic glycosides. Analytical and Bioanalytical Chemistry, 2017, 409 (30), pp.7011-7026. ⟨10.1007/s00216-017-0637-7⟩. ⟨hal-03609609⟩
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