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Zhao J, Liu R, Zhang Z, Xing Q, Chang H, Hou X, Wang Y. Tautomer distributions of N-acetyl-D-glucosamine in the condition of commonly utilized solvents and catalysts for biorefinery: NMR study. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Zhao J, Wang M, Saroja SG, Khan IA. NMR technique and methodology in botanical health product analysis and quality control. J Pharm Biomed Anal 2022; 207:114376. [PMID: 34656935 DOI: 10.1016/j.jpba.2021.114376] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 09/03/2021] [Accepted: 09/14/2021] [Indexed: 12/13/2022]
Abstract
Botanicals have played an important role in maintaining human health and well-being throughout history. During the past few decades in particular, the use of botanical health products has gained more popularity. Whereas, quality, safety and efficacy concerns have continuously been critical issues due to the intrinsic chemical complexity of botanicals. Chemical analytical technologies play an imperative role in addressing these issues. Nuclear magnetic resonance (NMR) spectroscopy has proven to be a powerful and useful tool for the investigation of botanical health products. In this review, NMR techniques and methodologies that have been successfully applied to the research and development of botanical health products in all stages, from plants to products, are discussed and summarized. Furthermore, applications of NMR together with other analytical techniques in a variety of domains of botanical health products investigation, such as plant species differentiation, adulteration detection, and bio-activity evaluation, are discussed and illustrated with typical examples. This article provides an overview of the potential uses of NMR techniques and methodologies in an attempt to further promote their recognition and utilization in the field of botanical health products analysis and quality control.
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Affiliation(s)
- Jianping Zhao
- National Center for Natural Products Research (NCNPR), School of Pharmacy, University of Mississippi, University, MS 38677, USA.
| | - Mei Wang
- Natural Products Utilization Research Unit, Agricultural Research Service, US Department of Agriculture, University, MS 38677, USA
| | - Seethapathy G Saroja
- National Center for Natural Products Research (NCNPR), School of Pharmacy, University of Mississippi, University, MS 38677, USA
| | - Ikhlas A Khan
- National Center for Natural Products Research (NCNPR), School of Pharmacy, University of Mississippi, University, MS 38677, USA; Division of Pharmacognosy, Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS 38677, USA.
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Violante FGM, Wollinger W, Guimarães EF, Garrido BC, de Aquino Neto FR. Use of quantitative 1H and 13C NMR to determine the purity of organic compound reference materials: a case study of standards for nitrofuran metabolites. Anal Bioanal Chem 2021; 413:1701-1714. [PMID: 33501553 DOI: 10.1007/s00216-020-03134-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 12/11/2020] [Accepted: 12/16/2020] [Indexed: 10/22/2022]
Abstract
Comparability of measurement results and their metrological traceability to the International System of Units (SI) are fundamental tools to ensure reliable decisions in the social sphere, commerce, and science. The use of appropriate references in analytical chemistry, such as certified reference materials (CRMs) of high purity substances, is one of the required procedures to obtain traceable measurements. When commercial standards with non-certified purity values are used, traceability must be achieved by determining the purity of the standard using a potential primary reference measurement procedure or other appropriate methods. Quantitative nuclear magnetic resonance (qNMR) is a technique with the potential to be used in primary measurement procedures. This work presents the determination of purity by 1H qNMR for nitrofuran metabolites 3-amino-2-oxazolidinone (AOZ), 3-amino-5-morpholinomethyl-2-oxazolidinone (AMOZ), and 1-aminohydantoin (AHD). Furthermore, a recent qNMR method developed by our group to improve the quantitative performance of measurements using 13C nucleus was used to determine the purity of semicarbazide (SEM) nitrofuran metabolite. Purity values obtained by qNMR for AOZ, AMOZ, and AHD standards were compared to values obtained by the mass balance approach using a suite of analytical methods: Karl Fischer (KF) coulometric titration and thermogravimetry (TG) for the determination of water and residual solvents, gas and liquid chromatography for the determination of impurities structurally related to the metabolites. The results obtained by qNMR and mass balance were consistent.Graphical abstract.
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Affiliation(s)
- Fernando G M Violante
- National Institute of Metrology, Quality and Technology (Inmetro), Scientific Metrology and Technology Directorate (Dimci), Chemical and Thermal Metrology Division (Dimqt), Av. Nossa Senhora das Graças, 50, Xerém, Duque de Caxias, RJ, 25250-020, Brazil.
| | - Wagner Wollinger
- National Institute of Metrology, Quality and Technology (Inmetro), Scientific Metrology and Technology Directorate (Dimci), Chemical and Thermal Metrology Division (Dimqt), Av. Nossa Senhora das Graças, 50, Xerém, Duque de Caxias, RJ, 25250-020, Brazil
| | - Evelyn F Guimarães
- National Institute of Metrology, Quality and Technology (Inmetro), Scientific Metrology and Technology Directorate (Dimci), Chemical and Thermal Metrology Division (Dimqt), Av. Nossa Senhora das Graças, 50, Xerém, Duque de Caxias, RJ, 25250-020, Brazil
| | - Bruno C Garrido
- National Institute of Metrology, Quality and Technology (Inmetro), Scientific Metrology and Technology Directorate (Dimci), Chemical and Thermal Metrology Division (Dimqt), Av. Nossa Senhora das Graças, 50, Xerém, Duque de Caxias, RJ, 25250-020, Brazil
| | - Francisco Radler de Aquino Neto
- Chemistry Institute (IQ), Laboratory for the Support of Technological Development (Ladetec), Federal University of Rio de Janeiro (UFRJ), Avenida Horácio Macedo, 1281, Polo de Química, bloco C, Cidade Universitária, Rio de Janeiro, RJ, 21941-598, Brazil
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Liang F, Yang W, Xu L, Ji L, He Q, Wu L, Ran Y, Yan S. Closing extra CO2 into plants for simultaneous CO2 fixation, drought stress alleviation and nutrient absorption enhancement. J CO2 UTIL 2020. [DOI: 10.1016/j.jcou.2020.101319] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Saito N, Komatsu T, Suematsu T, Miyamoto T, Ihara T. Unique Usage of a Classical Selective Homodecoupling Sequence for High-Resolution Quantitative 1H NMR. Anal Chem 2020; 92:13652-13655. [PMID: 32985865 DOI: 10.1021/acs.analchem.0c03154] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Classical selective homodecoupling was used in a 1H NMR purity assay to improve accuracy by overcoming spectral overlaps due to 1H-1H spin coupling. Dummy irradiation at a specific frequency was used in addition to irradiation at a 1H resonance of the analyte to avoid irradiation bias. The method was validated in a 1H NMR purity assay of high-purity diethyl phthalate (National Metrology Institute of Japan Certified Reference Material (NMIJ CRM), purity: 99.98%). The obtained purity value biases were 0.27% or less. The utility of the method was demonstrated in another 1H NMR purity assay of dipropyl phthalate (NMIJ CRM, purity: 98.41%), which contained a tiny amount of the structurally similar compound methyl propyl phthalate as an impurity. An accurate assay was achieved with the method, giving a purity of 98.39%, whereas the conventional method gave a purity 99.13%.
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Affiliation(s)
- Naoki Saito
- National Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8563, Japan
| | - Takanori Komatsu
- JEOL RESONANCE Inc., 3-1-2 Musashino, Akishima, Tokyo 196-8558, Japan
| | - Takako Suematsu
- JEOL RESONANCE Inc., 3-1-2 Musashino, Akishima, Tokyo 196-8558, Japan
| | - Tetsuo Miyamoto
- JEOL RESONANCE Inc., 3-1-2 Musashino, Akishima, Tokyo 196-8558, Japan
| | - Toshihide Ihara
- National Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8563, Japan
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Food Safety Risk Assessment of γ-Butyrolactone Transformation into Dangerous γ-Hydroxybutyric Acid in Beverages by Quantitative 13C-NMR Technique. J FOOD QUALITY 2020. [DOI: 10.1155/2020/8846214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Food safety remains a matter of great concern in most countries and the composition in food is crucial to food safety. It is very important to make sense of the quality and change of food ingredients. In this research, the change of γ-butyrolactone (GBL), one kind of food additive in beverage, had been evaluated by nuclear magnetic resonance (NMR) technique. The 1H-NMR results of seven beverages covering various kinds with spiked GBL indicated that GBL was transformed into dangerous γ-hydroxybutyric acid (GHB) in six popular beverages under certain conditions which could happen during transportation and storage. Further results of quantitative 13C-NMR showed that pH and temperature were two key factors affecting the transforming degree of GBL to GHB. Lower pH and higher temperature will increase the degree of transformation. GHB was a neurotransmitter on the chemical control list, which was absolutely forbidden to be added to food. This nondestructive NMR detecting technology which did not need the complex pretreatment method to directly determine food ingredients can be useful for identifying the risk of food safety from the changes of food composition during transport and storage.
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