scholarly journals Comparative Metabolite Profiling of Wild and Cultivated Justicia procumbens L. Based on 1H-NMR Spectroscopy and HPLC-DAD Analysis

Plants ◽  
2020 ◽  
Vol 9 (7) ◽  
pp. 860
Author(s):  
Hyunyong Lee ◽  
Jihyun Jeon ◽  
Joobyoung Yoon ◽  
Seung-Hwan Kim ◽  
Hyun Sik Choi ◽  
...  
Keyword(s):  
1H Nmr ◽  
1H Nmr Spectroscopy ◽  
Raw Material ◽  
Cultivated Plants ◽  
Phase I Clinical Trials ◽  
Marker Compound ◽  
Nmr Data ◽  
Asthma Drug ◽  
Phytochemical Constituents ◽  
First Time

Justicia procumbens L. is known across Korea, India, China, and Taiwan as a remedy against fever, cough, sore throat, and cirrhosis of ascites. J. procumbens provides the raw material for a candidate anti-asthma drug (DW2008S) currently completing phase I clinical trials sponsored by Dong Wha Pharmaceutical Company. HPLC-DAD was used to quantify phytochemical constituents of J. procumbens, and HPLC and 1H-NMR results were assessed by multivariate analysis. This is the first time a comparative study using HPLC-DAD and NMR fingerprints has been applied to identify chemical differences between wild and cultivated J. procumbens. The amount of justicidin B as the marker compound was higher in cultivated samples (0.80 ± 0.25 mg/g) than in wild ones (0.63 ± 0.30 mg/g). Orthogonal partial least squares discriminant analysis (OPLS-DA) from HPLC and NMR data revealed that there were clear differences between wild and cultivated types and identified five secondary metabolites, which could help distinguish between wild and cultivated plants. Among these five lignans, diphyllin showed the most potent discrimination between two types and was significantly detected higher in cultivated ones than in wild ones. A combination of 1H-NMR and HPLC-DAD analysis is effective for J. procumbens standardization and metabolomics studies.

scholarly journals Exercise Induced Changes in Salivary and Serum Metabolome in Trained Standardbred, Assessed by 1H-NMR

Metabolites ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 298
Author(s):  
Marilena Bazzano ◽  
Luca Laghi ◽  
Chenglin Zhu ◽  
Enrica Lotito ◽  
Stefano Sgariglia ◽  
...  
Keyword(s):  
1H Nmr ◽  
1H Nmr Spectroscopy ◽  
Study Data ◽  
Metabolomic Analysis ◽  
Purine Derivatives ◽  
Fitness Evaluation ◽  
Exercise Induced ◽  
Induced Changes ◽  
First Time ◽  
The Relationship

In the present study, data related to the metabolomics of saliva and serum in trained standardbred horses are provided for the first time. Metabolomic analysis allows to analyze all the metabolites within selected biofluids, providing a better understanding of biochemistry modifications related to exercise. On the basis of the current advances observed in metabolomic research on human athletes, we aimed to investigate the metabolites’ profile of serum and saliva samples collected from healthy standardbred horses and the relationship with physical exercise. Twelve trained standardbred horses were sampled for blood and saliva before (T0) and immediately after (T1) standardized exercise. Metabolomic analysis of both samples was performed by 1H-NMR spectroscopy. Forty-six metabolites in serum and 62 metabolites in saliva were detected, including alcohols, amino acids, organic acids, carbohydrates and purine derivatives. Twenty-six and 14 metabolites resulted to be significantly changed between T0 and T1 in serum and saliva, respectively. The findings of 2-hydroxyisobutyrate and 3-hydroxybutyrate in serum and GABA in equine saliva, as well as their modifications following exercise, provide new insights about the physiology of exercise in athletic horses. Glycerol might represent a novel biomarker for fitness evaluation in sport horses.

scholarly journals 1H NMR Spectroscopy and MVA to Evaluate the Effects of Caulerpin-Based Diet on Diplodus sargus Lipid Profiles

Marine Drugs ◽  
2018 ◽  
Vol 16 (10) ◽  
pp. 390 ◽  
Author(s):  
Laura Del Coco ◽  
Serena Felline ◽  
Chiara Girelli ◽  
Federica Angilè ◽  
Laura Magliozzi ◽  
...  
Keyword(s):  
Lipid Metabolism ◽  
Nmr Spectroscopy ◽  
1H Nmr ◽  
1H Nmr Spectroscopy ◽  
Benthic Communities ◽  
Marine Species ◽  
Causal Mechanism ◽  
Fish Flesh ◽  
Diplodus Sargus ◽  
First Time

The biological invasion of the green algae Caulerpa cylindracea represents a serious scientific and public issue in the Mediterranean Sea, essentially due to strong modifications both to habitat structure and native benthic communities. Although alterations in health status and changes in flesh quality of some marine species (dietary exposed to C. cylindracea) have been observed, no studies on cause-effect relationships have been carried out. Here, for the first time, through a controlled feeding experiment followed by 1H NMR Spectroscopy and multivariate analysis (PCA, OPLS-DA), we showed that caulerpin taken with diet is directly responsible of changes observed in metabolic profile of fish flesh, including alteration of lipid metabolism, in particular with a reduction of ω3 PUFA content. The potential of caulerpin to directly modulate lipid metabolism opens up new questions about causal mechanism triggered by algal metabolite also in view of a possible exploitation in the nutraceutical/medical field.

Mesomerization of S4-Symmetric Tetrahedral Chelate Complex [In4(L3)4]: First-Time Monitored by Temperature-Dependent 1H NMR Spectroscopy

2010 ◽  
Vol 2010 (19) ◽  
pp. 2903-2906 ◽  
Author(s):  
Rolf W. Saalfrank ◽  
Harald Maid ◽  
Andreas Scheurer ◽  
Ralph Puchta ◽  
Walter Bauer
Keyword(s):  
Nmr Spectroscopy ◽  
1H Nmr ◽  
1H Nmr Spectroscopy ◽  
Chelate Complex ◽  
Temperature Dependent ◽  
First Time

scholarly journals On the occurrence of sonchuside A in Cicerbita alpina and its chemosystematic significance

2005 ◽  
Vol 70 (2) ◽  
pp. 171-175 ◽  
Author(s):  
Christian Zidorn ◽  
Ritae Schwaha ◽  
Ernst Ellmerer ◽  
Hermann Stuppner
Keyword(s):  
1H Nmr ◽  
13C Nmr ◽  
Nmr Data ◽  
First Time ◽  
Cicerbita Alpina

The subaerial parts of Cicerbita alpina yielded the guaianolide 8-acetyl- 15?-D-glucopyranosyllactucin (1) and the germacranolide Sonchuside A (2). The sonchuside A is reported for the first time from the genus Cicerbita. 1H-NMR and 13C NMR data of compounds 1 and 2 measured in deuterodimethyl sulfoxide and deuteromethanol, respectively, are given and the chemosystematic implications of the occurrence of sonchuside A in C. alpina are discussed briefly.

A Study of the Metabolome of Ricinus communis for Forensic Applications

2010 ◽  
Vol 63 (1) ◽  
pp. 8 ◽  
Author(s):  
Simon P. B. Ovenden ◽  
Benjamin R. Gordon ◽  
Christina K. Bagas ◽  
Bob Muir ◽  
Simone Rochfort ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
High Pressure ◽  
Liquid Chromatography ◽  
Nmr Spectroscopy ◽  
1H Nmr ◽  
1H Nmr Spectroscopy ◽  
East Coast ◽  
Ricinus Communis ◽  
Liquid Chromatography Mass Spectrometry ◽  
Nmr Data

Investigations were undertaken to ascertain the appropriateness of studying the metabolome of Ricinus communis for cultivar and provenance determination. Seeds from 14 R. communis specimens (a total of 56 seeds) collected from the east coast of Australia were analyzed by high pressure liquid chromatography with UV detection (HPLC-UV), liquid chromatography–mass spectrometry (LC-MS), and 1H NMR spectroscopy. The collected data were then analyzed using principle component analysis (PCA). For HPLC-UV analysis, six R. communis specimens were unambiguously identified by PCA as belonging to separate classes relating to specimen. LC-MS data allowed unique ions to be identified for four specimens. Conversely 10 specimens were unambiguously segregated in the PCA of the 1H NMR data. The ratio of ricinine 1 to demethylricinine analogues 2 and 3 was found to be important for specimen determination. These combined analyses suggested that a combination of HPLC-UV and 1H NMR in conjunction with PCA could allow for specimen differentiation.

scholarly journals The First Application of 1H NMR Spectroscopy for the Assessment of the Authenticity of Perfumes

Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3098
Author(s):  
Barbara Pacholczyk-Sienicka ◽  
Grzegorz Ciepielowski ◽  
Łukasz Albrecht
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Nmr Spectroscopy ◽  
1H Nmr ◽  
1H Nmr Spectroscopy ◽  
Negative Impact ◽  
Poor Quality ◽  
Proton Nuclear Magnetic Resonance ◽  
Simple Method ◽  
Counterfeit Goods ◽  
First Time

The manufacture of counterfeit goods is one of the world’s largest underground businesses and is rapidly growing. Counterfeits can lead not only to the loss of profit for honest producers but also have a negative impact on consumers who pay excessive prices for poor quality goods that may result in health or safety problems. The perfume industry is constantly vulnerable to counterfeits, particularly in the fast developing market of “smell-alike” designer-inspired perfumes because these prompt the identification of the methods that classify their quality. In this paper, the application of proton nuclear magnetic resonance (1H NMR) spectroscopy is employed for the first time to authenticate perfumery products. The molecular composition of several types of authentic brand fragrances for women was compared with cheap inspired equivalents and fakes. Our approach offers the prospect of a fast and simple method for detecting counterfeit perfumes using 1H NMR spectroscopy.

scholarly journals Reducing of Sterically Hindered Pyridine Substituted Para-Nitrosophenols

2021 ◽  
Vol 14 (3) ◽  
pp. 381-387
Author(s):  
Alexey A. Kukushkin ◽  
Keyword(s):  
Mass Spectrometry ◽  
Nmr Spectroscopy ◽  
Hydrazine Hydrate ◽  
1H Nmr ◽  
1H Nmr Spectroscopy ◽  
Sterically Hindered ◽  
First Time

Reduction of para-nitrosopyridylphenols with hydrazine hydrate in ethanol made it possible to obtain previously unavailable per-substituted para-aminophenols with pyridine substituents. The structure of the compounds obtained for the first time was confirmed by IR, 1H NMR spectroscopy and mass spectrometry

Asymetrical Dimer - allyl-palladiu Complexes II. Data from Infrared Spectra and Chemical Behaviour

2008 ◽  
Vol 59 (7) ◽  
Author(s):  
Maria Maganu ◽  
Filip Chiraleu ◽  
Constantin Draghici ◽  
Gheorghe Mihai
Keyword(s):  
Carbon Monoxide ◽  
Nmr Spectroscopy ◽  
1H Nmr ◽  
Infrared Spectra ◽  
Analytical Methods ◽  
1H Nmr Spectroscopy ◽  
Chemical Behaviour ◽  
The Asymmetry ◽  
Pd Complexes

The previous data obtained by 1H-NMR spectroscopy established the existence of an asymmetry of the bond between Pd and p-allylic groups, even in the p-allyl-Pd complexes dimers which are considered usually symmetric dimers. The asymmetry of the bond depends by the substitutes of the allylic group. Other analytical methods were investigated for additional proof of the obtained results. Thus, this paper discusses how this asymmetry would be reflected in the infrared spectra and in the reaction of the complexes with carbon monoxide.

Unexpected Keto-enol Tautomerism in the Cyclopyridinophane Class Direct and indirect proofs

2008 ◽  
Vol 59 (10) ◽  
Author(s):  
Paul Ionut Dron ◽  
Neculai Doru Miron ◽  
Gheorghe Surpateanu
Keyword(s):  
Nmr Spectroscopy ◽  
1H Nmr ◽  
Stable Conformer ◽  
Ph Measurements ◽  
Theoretical Methods ◽  
Nmr Data ◽  
Tautomeric Forms ◽  
New Compounds

The paper presents the synthesis of cyclo (bis-paraquat p-phenylene p-phenylene-carbonyl) tetrakis (hexafluorophosphate), named �CETOBOX�, and the closely related structural determinations. This compound exists in three tautomeric forms. These forms were evidentiated by NMR-data (1H-NMR, TOCSY, COSY, NOESY), UV-Vis spectra coupled with pH measurements and by synthesis. As the �CETOBOX� gives �in situ� only the corresponding monoylide, the synthesis of a new fluorescent indolizine cyclophane has been performed by a 3+2 cycloaddition. All structures of the new compounds presented herein have been established by NMR spectroscopy. Also, theoretical methods (MM3, AM1, AM1-COSMO and B88LYPDFT) have been used to determine the most stable conformer structures.

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