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F2-selective two-dimensional NMR spectroscopy for the analysis of minor components in foods

✍ Scribed by Masanori Koda; Kazuo Furihata; Feifei Wei; Takuya Miyakawa; Masaru Tanokura

Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
398 KB
Volume
49
Category
Article
ISSN
0749-1581

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✦ Synopsis

In this study, we propose F~2~‐selective 2D NMR spectroscopy as an effective method to obtain high‐quality spectra of minor components in complex foodstuffs. Selective excitation along the F~2~ axis overcame the problems occurring in the conventional F~1~‐selective 2D NMR spectroscopy. The technique was successfully applied to mango juice to provide high‐quality TOCSY, DQF‐COSY, and NOESY spectra of the minor components for the assignment of their signals. In addition, high‐quality TOCSY spectra were obtained for the minor components of Japanese sake and honey. These results indicate that F~2~‐selective 2D NMR spectroscopy will be useful for the non‐destructive analysis of various foods. Copyright © 2011 John Wiley & Sons, Ltd.

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