Correlating wine quality indicators to chemical and sensory measurements.

Correlating wine quality indicators to chemical and sensory measurements.

Molecules (Basel, Switzerland) (2015-05-20)

Helene Hopfer, Jenny Nelson, Susan E Ebeler, Hildegarde Heymann

RESUMEN

Twenty-seven commercial Californian Cabernet Sauvignon wines of different quality categories were analyzed with sensory and chemical methods. Correlations between five quality proxies-points awarded during a wine competition, wine expert scores, retail price, vintage, and wine region-were correlated to sensory attributes, volatile compounds, and elemental composition. Wine quality is a multi-faceted construct, incorporating many different layers. Depending on the quality proxy studied, significant correlations between quality and attributes, volatiles and elements were found, some of them previously reported in the literature.

MATERIALES

Referencia del producto

Marca

Descripción del producto

225711

Sigma-Aldrich

Ácido nítrico, 70%, purified by redistillation, ≥99.999% trace metals basis

S3014

Sigma-Aldrich

Cloruro de sodio, for molecular biology, DNase, RNase, and protease, none detected, ≥99% (titration)

459836

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Alcohol etílico puro, 200 proof, anhydrous, ≥99.5%

H9892

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Ácido clorhídrico solution, 1.0 N, BioReagent, suitable for cell culture

S5150

Sigma-Aldrich

Sodium chloride solution, 5 M in H₂O, BioReagent, for molecular biology, suitable for cell culture

S8776

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Sodium chloride solution, 0.9% in water, BioXtra, suitable for cell culture

S5886

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Cloruro de sodio, BioReagent, suitable for cell culture, suitable for insect cell culture, suitable for plant cell culture, ≥99%

H1758

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Ácido clorhídrico, 36.5-38.0%, BioReagent, for molecular biology

S7653

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Cloruro de sodio, BioXtra, ≥99.5% (AT)

59222C

SAFC

Sodium chloride solution, 5 M

W200336

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Acetaldehído, natural, FG

2104

Supelco

Ácido clorhídrico solution, volumetric, 0.1 M HCl (0.1N), endotoxin free

402788

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Acetaldehído, ACS reagent, ≥99.5%

13-1650

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Ácido clorhídrico, SAJ first grade, 35.0-37.0%

13-1640

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Ácido clorhídrico, JIS special grade, 35.0-37.0%

71386

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Sodium chloride solution, BioUltra, for molecular biology, ~5 M in H₂O

28-2270

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Cloruro de sodio, JIS special grade, ≥99.5%

153745

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Hexanoic acid, ≥99%

71376

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Cloruro de sodio, BioUltra, for molecular biology, ≥99.5% (AT)

S6546

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Sodium chloride solution, 5 M

493511

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Alcohol etílico puro, 190 proof, ACS spectrophotometric grade, 95.0%

295426

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Hydrogen chloride, ReagentPlus^®, ≥99%

204439

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Cloruro de sodio, 99.999% trace metals basis

L2602

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Linalool, 97%

45726

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Ácido acético, for luminescence, BioUltra, ≥99.5% (GC)

13-1700

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Ácido clorhídrico solution, 1 M

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Sigma-Aldrich

Alcohol etílico puro, 190 proof, meets USP testing specifications

W200611

Sigma-Aldrich

Ácido acético, ≥99.5%, FCC, FG

402907

Sigma-Aldrich

Propionic acid, ACS reagent, ≥99.5%

S1679

Sigma-Aldrich

Cloruro de sodio, meets analytical specification of Ph. Eur., BP, USP, 99.0-100.5%