2011
DOI: 10.1002/mrc.2813
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F2‐selective two‐dimensional NMR spectroscopy for the analysis of minor components in foods

Abstract: 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 … Show more

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Cited by 9 publications
(9 citation statements)
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“…Combined with multivariate data analysis, NMR has become a robust tool for foodomics . Recently, NMR has been applied for the comprehensive analysis and characterization of fruits, such as apple, tomato, and mango . However, a problem of dynamic range frequently occurs in the analysis of fruits using NMR.…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…Combined with multivariate data analysis, NMR has become a robust tool for foodomics . Recently, NMR has been applied for the comprehensive analysis and characterization of fruits, such as apple, tomato, and mango . However, a problem of dynamic range frequently occurs in the analysis of fruits using NMR.…”
Section: Introductionmentioning
confidence: 99%
“…[6][7][8] Recently, NMR has been applied for the comprehensive analysis and characterization of fruits, such as apple, [9,10] tomato, [11] and mango. [12][13][14][15][16] However, a problem of dynamic range frequently occurs in the analysis of fruits using NMR. The main components, such as sugars, in fruits are observed as strong signals, as is water, the signals of which make minor components undetectable or detected with a very poor signal-tonoise (S/N) ratio because of the limitation of the dynamic range.…”
Section: Introductionmentioning
confidence: 99%
“…17 In a previous study, we developed F 2selective 2D NMR spectroscopy, which excites a limited range of the spectrum along the F 2 axis, and which can provide highquality 2D NMR spectra of minor components in foods. 18 Suppression methods such as WET 19,20 (water suppression enhanced through the T 1 effect) are also effective for detecting minor components in food without separation. 21,22 Fermentation is one of the most important processes in the food industry, and various fermented foods are produced all over the world.…”
Section: ■ Introductionmentioning
confidence: 99%
“…2 Although allegedly efficient, this strategy is irreversible and might break down certain noncarbohydrate molecules as well. Other approaches include methods based on band-selective excitation of the spectral area of interest 3,4 (oen combined with statistical analyses 5 ), computational methods, 6 and selective experiments utilizing differences in relaxation, diffusion, and J-coupling, combined with mathematical modelling. 7,8 Most of the cited strategies require statistical and computational analyses and/or that the sample is altered in some way.…”
Section: Introductionmentioning
confidence: 99%