Comparison of Multivariate Regression Methods for the Analysis of Phenolics in Wine Made from Two Vitis vinifera Cultivars

@article{Beaver2016ComparisonOM,
  title={Comparison of Multivariate Regression Methods for the Analysis of Phenolics in Wine Made from Two Vitis vinifera Cultivars},
  author={Christopher W. Beaver and James F. Harbertson},
  journal={American Journal of Enology and Viticulture},
  year={2016},
  volume={67},
  pages={56 - 64}
}
The quantification of key phenolic classes during different stages of red wine production has important industrial applications. Decisions of this nature require greater speed and economy than current bench or instrumental methodologies offer. Efforts to create rapid analysis have used models created from multivariate regression of easily obtained spectra (ultraviolet (UV)/visible or near infrared) and referenced phenolic measurements. For this experiment, reference measures of phenolics and UV… Expand
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References

SHOWING 1-10 OF 38 REFERENCES
Rapid Determination of Phenolic Components in Red Wines from UV-Visible Spectra and the Method of Partial Least Squares
Partial least squares regression was applied to the UV-visible spectra of 200 red wine samples at various stages of fermentation and the concentrations of several groups of phenols as determined byExpand
Catechin and Epicatechin Concentrations of Red Wines: Regional and Cultivar-Related Differences
Employing gradient elution HPLC with direct injection of 20 µL of sample and diode array detection, the (+)-catechin and (-)-epicatechin concentrations were determined in >800 red wines fromExpand
Comparison of analytical methods for the determination of condensed tannins in grape skin
Background and Aims: Condensed tannins extracted from grapes are an important organoleptic component of wine. Assessing tannin level in grapes requires an effective analytical method. This study Expand
Measurement of Polymeric Pigments in Grape Berry Extracts and Wines Using a Protein Precipitation Assay Combined with Bisulfite Bleaching
By combining protein precipitation and traditional bisulfite bleaching to distinguish monomeric anthocyanins from polymeric pigments, two classes of polymeric pigments in grapes and wines wereExpand
Phenolic Composition of Malbec: A Comparative Study of Research-Scale Wines between Argentina and the United States
Phenolic compounds play a major role in red wine quality, affecting color, taste, mouthfeel, and aging potential. The objective of this research was to compare the phenolic composition of MalbecExpand
A Review of the Effect of Winemaking Techniques on Phenolic Extraction in Red Wines
Winemaking variables and techniques are known to affect the phenolic composition of red wines. This review surveys the current literature on the impact of processing and fermentation parameters onExpand
Determination of the age of sherry wines by regression techniques using routine parameters and phenolic and volatile compounds.
This paper describes a study of the possibility of obtaining regression models by means of partial least squares (PLS) and multiple linear regression (MLR) that would enable us to correlate a seriesExpand
Analysis of grape and wine tannins: Methods, applications and challenges
Tannins are polyphenolic secondary metabolites, which can be found in many higher plants and are identified by their ability to complex with and precipitate proteins. This key property is believed toExpand
Mass spectrometry in grape and wine chemistry. Part I: polyphenols.
  • R. Flamini
  • Chemistry, Medicine
  • Mass spectrometry reviews
  • 2003
TLDR
Liquid Chromatography-Mass Spectrometry techniques are nowadays the best analytical approach to study polyphenols in grape extracts and wine, and are the most effective tool in the study of the structure of anthocyanins. Expand
Variability of Tannin Concentration in Red Wines
A protein precipitation method was used to measure the tannin concentration of 1325 commercial red wines made from Vitis vinifera cultivars: Cabernet Sauvignon, Merlot, Pinot noir, Syrah, Zinfandel,Expand
...
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