کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7588846 | 1492088 | 2016 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Development of a low resolution 1H NMR spectroscopic technique for the study of matrix mobility in fresh and freeze-thawed hen egg yolk
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Development of a low resolution 1H NMR spectroscopic technique for the study of matrix mobility in fresh and freeze-thawed hen egg yolk Development of a low resolution 1H NMR spectroscopic technique for the study of matrix mobility in fresh and freeze-thawed hen egg yolk](/preview/png/7588846.png)
چکیده انگلیسی
Three experiments were conducted in developing a low resolution proton nuclear magnetic resonance (1H NMR) spectroscopic technique to study matrix mobility in fresh and freeze-thawed gelled yolk. The Carr-Purcell-Meiboom-Gill (CPMG) sequence was used to measure spin-spin relaxation times of proton pools representing major yolk constituents. A component identification test distinguished 3-4 pools. The least mobile pool was assigned to proteins, protein-lipid and protein-water interactions, and the most mobile to unbound water. The remaining pools were assigned to lipids, lipid-protein and lipid-water interactions. A stability test indicated that yolk had varied matrix mobility within the same sample across five days of refrigeration storage. A reproducibility test demonstrated high repeatability of fresh yolk measurements, but significant differences (p < 0.05) were found within gelled yolk samples. This research determined that 1H NMR spectroscopy, a non-destructive technique, can identify yolk components and detect changes in the matrix.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 204, 1 August 2016, Pages 159-166
Journal: Food Chemistry - Volume 204, 1 August 2016, Pages 159-166
نویسندگان
Carmen Au, Tong Wang, Nuria C. Acevedo,