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Proton high-field NMR study of tomato juice

✍ Scribed by Anatoli P. Sobolev; Annalaura Segre; Raffaele Lamanna

Publisher: John Wiley and Sons
Year: 2003
Tongue: English
Weight: 169 KB
Volume: 41
Category: Article
ISSN: 0749-1581
DOI: 10.1002/mrc.1176

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✦ Synopsis

Abstract

A detailed analysis of the proton high‐field (600 MHz) NMR spectra of tomato juice and pulp is reported for the first time. A combination of J‐resolved, COSY, TOCSY, DOSY, ^1^H–^13^C HSQC and ^1^H–^13^C HMBC 2D sequences was used to assign each spin system and to separate the components of the complex patterns in the 1D overlapped proton spectra. To obtain resolved proton spectra of tomato pulps the high‐resolution magic angle spinning technique was used; a comparison with the liquid‐state NMR spectra of the corresponding juices was accomplished. On the basis of the assignments made, the chemical composition of tomato juices from two cultivars (Red Setter and Ciliegino) was determined. Copyright © 2003 John Wiley & Sons, Ltd.

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