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Yang M, Liu Z, Zhang J, Zhu X, Xie W, Lan H, Huang Y, Ye X, Yang J. Simultaneous quantification of cellulose and pectin in tobacco using a robust solid-state NMR method. Carbohydr Res 2022; 521:108676. [PMID: 36126413 DOI: 10.1016/j.carres.2022.108676] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 09/03/2022] [Accepted: 09/05/2022] [Indexed: 11/30/2022]
Abstract
Cellulose and pectin are the important components of tobacco (Nicotiana tabacum L.) cell wall, which affect the formation of undesirable compounds. Their contents are closely related to the harmfulness of tobacco. But the simultaneous quantitative analysis of cellulose and pectin is hard to be achieved for traditional analytical methods. A solid-state 13C cross-polarization by multiple contact periods (multiCP) NMR method was developed for the simultaneous quantification of cellulose and pectin in tobacco. The multiCP spectrum at optimal parameters agreed well with the direct polarization (DP) spectrum within one-thirtieth of the measurement time and provided satisfactory signal to noise ratio (SNR). After three simple procedures of sample preparation and spectra deconvolution, simultaneous quantification of cellulose and pectin extracted from tobacco was effectively achieved. Compared with the chemical method, this interesting method was rapid, practicable, and very promising, which provided the technical support for the simultaneous quantification of cell wall substances in biological sample.
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Affiliation(s)
- Mingyu Yang
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, People's Republic of China
| | - Zechun Liu
- Technology Center, China Tobacco Fujian Industrial Co. Ltd., 298 Binshui Road, Xiamen, 361001, People's Republic of China.
| | - Jianping Zhang
- Technology Center, China Tobacco Fujian Industrial Co. Ltd., 298 Binshui Road, Xiamen, 361001, People's Republic of China
| | - Xiaolan Zhu
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, People's Republic of China
| | - Wei Xie
- Technology Center, China Tobacco Fujian Industrial Co. Ltd., 298 Binshui Road, Xiamen, 361001, People's Republic of China
| | - Hongqiao Lan
- Technology Center, China Tobacco Fujian Industrial Co. Ltd., 298 Binshui Road, Xiamen, 361001, People's Republic of China
| | - Yanjun Huang
- Technology Center, China Tobacco Fujian Industrial Co. Ltd., 298 Binshui Road, Xiamen, 361001, People's Republic of China
| | - Xin Ye
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, People's Republic of China
| | - Jun Yang
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, People's Republic of China.
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Elwinger F, Furó I. High-resolution magic angle spinning (1) H NMR measurement of ligand concentration in solvent-saturated chromatographic beads. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2016; 54:291-297. [PMID: 26791865 PMCID: PMC4819705 DOI: 10.1002/mrc.4370] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Revised: 08/26/2015] [Accepted: 09/19/2015] [Indexed: 06/05/2023]
Abstract
A method based on (1) H high-resolution magic angle spinning NMR has been developed for measuring concentration accurately in heterogeneous materials like that of ligands in chromatography media. Ligand concentration is obtained by relating the peak integrals for a butyl ligand in the spectrum of a water-saturated chromatography medium to the integral of the added internal reference. The method is fast, with capacity of 10 min total sample preparation and analysis time per sample; precise, with a reproducibility expressed as 1.7% relative standard deviation; and accurate, as indicated by the excellent agreement of derived concentration with that obtained previously by (13) C single-pulse excitation MAS NMR. The effects of radiofrequency field inhomogeneity, spin rate, temperature increase due to spinning, and distribution and re-distribution of medium and reference solvent both inside the rotor during spinning and between bulk solvent and pore space are discussed in detail. © 2016 The Authors Magnetic Resonance in Chemistry published by John Wiley & Sons Ltd.
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Affiliation(s)
- Fredrik Elwinger
- Division of Applied Physical ChemistryKTH Royal Institute of TechnologyStockholmSweden
- GE Healthcare Bio‐Sciences ABUppsalaSweden
| | - István Furó
- Division of Applied Physical ChemistryKTH Royal Institute of TechnologyStockholmSweden
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