13C CP/MAS NMR spectra of pectins: a peak-fitting analysis in the C-6 region
13C CP/MAS NMR spectra of pectin samples were measured and interpreted. The influence of methylesterification and O-acetylation on chemical shifts of pectin carbons was studied using model pectate, pectinates, and their acetylated derivatives. The spectra were analysed also by peak fitting in C-6 re...
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2003-02-01
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| Series: | Czech Journal of Food Sciences |
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| Online Access: | https://cjfs.agriculturejournals.cz/artkey/cjf-200301-0001_13c-cp-mas-nmr-spectra-of-pectins-a-peak-fitting-analysis-in-the-c-6-region.php |
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| author | A. Synytsya J. Opíková J. Brus |
| author_facet | A. Synytsya J. Opíková J. Brus |
| author_sort | A. Synytsya |
| collection | DOAJ |
| description | 13C CP/MAS NMR spectra of pectin samples were measured and interpreted. The influence of methylesterification and O-acetylation on chemical shifts of pectin carbons was studied using model pectate, pectinates, and their acetylated derivatives. The spectra were analysed also by peak fitting in C-6 region to obtain the values of methylation (DM), amidation (DAm) and acetylation (DAc), degrees. The results were in a good agreement with both convenient methods (photometry, elemental analysis) and the NMR method based on the relative areas of OCH3 (DM) and CH3 (DAc) resonances. |
| first_indexed | 2024-04-10T08:36:48Z |
| format | Article |
| id | doaj.art-3ad30e4394964f68bb481e7d1cb4e232 |
| institution | Directory Open Access Journal |
| issn | 1212-1800 1805-9317 |
| language | English |
| last_indexed | 2024-04-10T08:36:48Z |
| publishDate | 2003-02-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Czech Journal of Food Sciences |
| spelling | doaj.art-3ad30e4394964f68bb481e7d1cb4e2322023-02-23T03:26:41ZengCzech Academy of Agricultural SciencesCzech Journal of Food Sciences1212-18001805-93172003-02-0121111210.17221/3471-CJFScjf-200301-000113C CP/MAS NMR spectra of pectins: a peak-fitting analysis in the C-6 regionA. Synytsya0J. Opíková1J. Brus2Department of Carbohydrate Chemistry and Technology, Institute of Chemical Technology, Prague, Czech Republic; 2Institute of Macromolecular Chemistry, Czech Academy of Science, Prague, Czech RepublicDepartment of Carbohydrate Chemistry and Technology, Institute of Chemical Technology, Prague, Czech Republic; 2Institute of Macromolecular Chemistry, Czech Academy of Science, Prague, Czech RepublicDepartment of Carbohydrate Chemistry and Technology, Institute of Chemical Technology, Prague, Czech Republic; 2Institute of Macromolecular Chemistry, Czech Academy of Science, Prague, Czech Republic13C CP/MAS NMR spectra of pectin samples were measured and interpreted. The influence of methylesterification and O-acetylation on chemical shifts of pectin carbons was studied using model pectate, pectinates, and their acetylated derivatives. The spectra were analysed also by peak fitting in C-6 region to obtain the values of methylation (DM), amidation (DAm) and acetylation (DAc), degrees. The results were in a good agreement with both convenient methods (photometry, elemental analysis) and the NMR method based on the relative areas of OCH3 (DM) and CH3 (DAc) resonances.https://cjfs.agriculturejournals.cz/artkey/cjf-200301-0001_13c-cp-mas-nmr-spectra-of-pectins-a-peak-fitting-analysis-in-the-c-6-region.php13c cp/mas nmrpectinspeak fittingdegrees of methylation (dm)degrees of acetylation (dac) |
| spellingShingle | A. Synytsya J. Opíková J. Brus 13C CP/MAS NMR spectra of pectins: a peak-fitting analysis in the C-6 region Czech Journal of Food Sciences 13c cp/mas nmr pectins peak fitting degrees of methylation (dm) degrees of acetylation (dac) |
| title | 13C CP/MAS NMR spectra of pectins: a peak-fitting analysis in the C-6 region |
| title_full | 13C CP/MAS NMR spectra of pectins: a peak-fitting analysis in the C-6 region |
| title_fullStr | 13C CP/MAS NMR spectra of pectins: a peak-fitting analysis in the C-6 region |
| title_full_unstemmed | 13C CP/MAS NMR spectra of pectins: a peak-fitting analysis in the C-6 region |
| title_short | 13C CP/MAS NMR spectra of pectins: a peak-fitting analysis in the C-6 region |
| title_sort | 13c cp mas nmr spectra of pectins a peak fitting analysis in the c 6 region |
| topic | 13c cp/mas nmr pectins peak fitting degrees of methylation (dm) degrees of acetylation (dac) |
| url | https://cjfs.agriculturejournals.cz/artkey/cjf-200301-0001_13c-cp-mas-nmr-spectra-of-pectins-a-peak-fitting-analysis-in-the-c-6-region.php |
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