Domain Sizes in Triglyceride Crystal Networks by <sup>1</sup>H Spin-diffusion NMR

Vodă, Mircea; Goudappel, G. J. W.; Adel, Ruud den; Duynhoven, John van

doi:10.1039/9781849737531-00061

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“…The fat blends were subject to different crystallization rates by applying either a very fast or a moderate to slow cooling from the melt; thus, crystallites growth and size are expected to be different. , The proton spin-diffusion method was applied in combination with a double-quantum (DQ) dipolar filter to select the magnetization of the most rigid/crystalline phase. Other magnetization filters can also be employed to select either the low- or the high-molecular mobility spin populations. ,, To the best of our knowledge, this is the first attempt to estimate the thickness of TAG crystallites in fat systems by 1 H spin-diffusion NMR, after we presented the idea at the “NMR in Foods” conference in 2012 . Comparison of NMR results with crystallite thickness determined by Scherrer analysis of the first order diffraction peak from SAXS data is discussed.…”

Section: Introductionmentioning

confidence: 99%

“…30,35,37 To the best of our knowledge, this is the first attempt to estimate the thickness of TAG crystallites in fat systems by 1 H spindiffusion NMR, after we presented the idea at the "NMR in Foods" conference in 2012. 41 Comparison of NMR results with crystallite thickness determined by Scherrer analysis of the first order diffraction peak from SAXS data is discussed.…”

Section: ■ Introductionmentioning

confidence: 99%

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Quantitative Assessment of Triacylglycerol Crystallite Thickness by ¹H Spin-Diffusion NMR

Voda

Adel

Malssen

et al. 2017

Crystal Growth & Design

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Properties and consumer appreciation of fat containing food products are greatly influenced by the growth of the fat crystalline domains and their morphology. Various analytical methods can be exploited to provide insight into the multilength scale microstructure of fat networks, but very few are able to discriminate structural features between different ways of processing fats. We selected in this work methods that highlight the mesostructure of fat crystalline systems. In this respect, 1H spin-diffusion NMR and XRD methods were employed to determine the fat crystallite thicknesses (crystalline domain size). This is the first attempt to quantify the mesostructure domains of triglyceride-based fat crystals by means of 1H spin-diffusion NMR experiments. The crystalline domain sizes determined by spin-diffusion NMR were found to be in good agreement with the crystallite thickness determined by the Scherrer analysis of the first order diffraction line from SAXS data. These results demonstrate the ability of the NMR technique to characterize the mesostructure of fats in a quantitative manner. This method is of particular interest for the structure analysis of fats, especially because of the possibility to quantify the size of the crystalline domains in diluted systems where scattering techniques struggle with the amount of diffracting material.

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Section: Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Quantitative Assessment of Triacylglycerol Crystallite Thickness by ¹H Spin-Diffusion NMR

Voda

Adel

Malssen

et al. 2017

Crystal Growth & Design

View full text Add to dashboard Cite

show abstract

Domain Sizes in Triglyceride Crystal Networks by ¹H Spin-diffusion NMR

Cited by 1 publication

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Quantitative Assessment of Triacylglycerol Crystallite Thickness by ¹H Spin-Diffusion NMR

Quantitative Assessment of Triacylglycerol Crystallite Thickness by ¹H Spin-Diffusion NMR

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Domain Sizes in Triglyceride Crystal Networks by 1H Spin-diffusion NMR

Cited by 1 publication

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Quantitative Assessment of Triacylglycerol Crystallite Thickness by 1H Spin-Diffusion NMR

Quantitative Assessment of Triacylglycerol Crystallite Thickness by 1H Spin-Diffusion NMR

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Domain Sizes in Triglyceride Crystal Networks by ¹H Spin-diffusion NMR

Quantitative Assessment of Triacylglycerol Crystallite Thickness by ¹H Spin-Diffusion NMR

Quantitative Assessment of Triacylglycerol Crystallite Thickness by ¹H Spin-Diffusion NMR