scholarly journals Detection of Butter Adulteration with Lard by Employing 1H-NMR Spectroscopy and Multivariate Data Analysis

2015 ◽  
Vol 64 (7) ◽  
pp. 697-703 ◽  
Author(s):  
Nurrulhidayah Ahmad Fadzillah ◽  
Yaakob bin Che Man ◽  
Abdul Rohman ◽  
Arieff Salleh Rosman ◽  
Amin Ismail ◽  
...  
Keyword(s):  
Data Analysis ◽  
Nmr Spectroscopy ◽  
Multivariate Data Analysis ◽  
Multivariate Data ◽  
H Nmr ◽  
Butter Adulteration

Metabolic Fingerprinting of Tussilago farfara L. Using 1 H-NMR Spectroscopy and Multivariate Data Analysis

2012 ◽  
Vol 23 (5) ◽  
pp. 492-501 ◽  
Author(s):  
Hai-Juan Zhi ◽  
Xue-Mei Qin ◽  
Hai-Feng Sun ◽  
Li-Zeng Zhang ◽  
Xiao-Qing Guo ◽  
...  
Keyword(s):  
Data Analysis ◽  
Nmr Spectroscopy ◽  
Multivariate Data Analysis ◽  
Multivariate Data ◽  
Metabolic Fingerprinting ◽  
H Nmr ◽  
Tussilago Farfara

scholarly journals Reproducibility of NMR Analysis of Urine Samples: Impact of Sample Preparation, Storage Conditions, and Animal Health Status

2013 ◽  
Vol 2013 ◽  
pp. 1-19 ◽  
Author(s):  
Christina Schreier ◽  
Werner Kremer ◽  
Fritz Huber ◽  
Sindy Neumann ◽  
Philipp Pagel ◽  
...  
Keyword(s):  
Data Analysis ◽  
Health Status ◽  
Nmr Spectroscopy ◽  
Multivariate Data Analysis ◽  
Multivariate Data ◽  
Storage Conditions ◽  
Urine Samples ◽  
Freeze Thaw ◽  
H Nmr ◽  
Sample Composition

Introduction.Spectroscopic analysis of urine samples from laboratory animals can be used to predict the efficacy and side effects of drugs. This employs methods combining1H NMR spectroscopy with quantification of biomarkers or with multivariate data analysis. The most critical steps in data evaluation are analytical reproducibility of NMR data (collection, storage, and processing) and the health status of the animals, which may influence urine pH and osmolarity.Methods.We treated rats with a solvent, a diuretic, or a nephrotoxicant and collected urine samples. Samples were titrated to pH 3 to 9, or salt concentrations increased up to 20-fold. The effects of storage conditions and freeze-thaw cycles were monitored. Selected metabolites and multivariate data analysis were evaluated after1H NMR spectroscopy.Results.We showed that variation of pH from 3 to 9 and increases in osmolarity up to 6-fold had no effect on the quantification of the metabolites or on multivariate data analysis. Storage led to changes after 14 days at 4°C or after 12 months at −20°C, independent of sample composition. Multiple freeze-thaw cycles did not affect data analysis.Conclusion.Reproducibility of NMR measurements is not dependent on sample composition under physiological or pathological conditions.

Metabolomic investigation of the ethnopharmacological use of Artemisia afra with NMR spectroscopy and multivariate data analysis

2010 ◽  
Vol 128 (1) ◽  
pp. 230-235 ◽  
Author(s):  
Ning Qing Liu ◽  
Martine Cao ◽  
Michel Frédérich ◽  
Young Hae Choi ◽  
Robert Verpoorte ◽  
...  
Keyword(s):  
Data Analysis ◽  
Nmr Spectroscopy ◽  
Multivariate Data Analysis ◽  
Multivariate Data

Metabolomic analysis of Salvia hispanica seeds using NMR spectroscopy and multivariate data analysis

2017 ◽  
Vol 99 ◽  
pp. 86-96 ◽  
Author(s):  
Bruna de Falco ◽  
Guido Incerti ◽  
Rocco Bochicchio ◽  
Tim D. Phillips ◽  
Mariana Amato ◽  
...  
Keyword(s):  
Data Analysis ◽  
Nmr Spectroscopy ◽  
Multivariate Data Analysis ◽  
Multivariate Data ◽  
Metabolomic Analysis ◽  
Salvia Hispanica

scholarly journals Metabolic Discrimination of Catharanthus roseus Leaves Infected by Phytoplasma Using 1H-NMR Spectroscopy and Multivariate Data Analysis

2004 ◽  
Vol 135 (4) ◽  
pp. 2398-2410 ◽  
Author(s):  
Young Hae Choi ◽  
Elisabet Casas Tapias ◽  
Hye Kyong Kim ◽  
Alfons W.M. Lefeber ◽  
Cornelis Erkelens ◽  
...  
Keyword(s):  
Data Analysis ◽  
Nmr Spectroscopy ◽  
1H Nmr ◽  
Catharanthus Roseus ◽  
Multivariate Data Analysis ◽  
1H Nmr Spectroscopy ◽  
Multivariate Data

Traceability of Italian garlic (Allium sativum L.) by means of HRMAS-NMR spectroscopy and multivariate data analysis

2012 ◽  
Vol 135 (2) ◽  
pp. 684-693 ◽  
Author(s):  
Mena Ritota ◽  
Lorena Casciani ◽  
Bei-Zhong Han ◽  
Sara Cozzolino ◽  
Liviana Leita ◽  
...  
Keyword(s):  
Data Analysis ◽  
Nmr Spectroscopy ◽  
Multivariate Data Analysis ◽  
Allium Sativum ◽  
Multivariate Data ◽  
Hrmas Nmr

Metabolomic Fingerprinting of Romaneschi Globe Artichokes by NMR Spectroscopy and Multivariate Data Analysis

2016 ◽  
Vol 27 (5) ◽  
pp. 304-314 ◽  
Author(s):  
Bruna de Falco ◽  
Guido Incerti ◽  
Rosa Pepe ◽  
Mariana Amato ◽  
Virginia Lanzotti
Keyword(s):  
Data Analysis ◽  
Nmr Spectroscopy ◽  
Multivariate Data Analysis ◽  
Multivariate Data ◽  
Metabolomic Fingerprinting

1H NMR spectroscopy combined with multivariate data analysis for differentiation of Brazilian lager beer according to brewery

2019 ◽  
Vol 245 (11) ◽  
pp. 2365-2372 ◽  
Author(s):  
Luis Augusto da Silva ◽  
Danilo Luiz Flumignan ◽  
Helena Redigolo Pezza ◽  
Leonardo Pezza
Keyword(s):  
Data Analysis ◽  
Nmr Spectroscopy ◽  
1H Nmr ◽  
Multivariate Data Analysis ◽  
1H Nmr Spectroscopy ◽  
Multivariate Data ◽  
Lager Beer
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