Uncorking white wine liking: Combining analytical chemistry and chemometrics with crowd-sourced data to predict quality ratings

  • 0Department of Food Science, University of Copenhagen, Rolighedsvej 26, DK-1958 Frederiksberg, Denmark; A/S Einar Willumsen, Abildager 23-25, DK- 2605 Brøndby, Denmark.

|

|

Summary

This summary is machine-generated.

This study links wine

Area Of Science

  • Enology and Viticulture
  • Food Chemistry
  • Consumer Science

Background

  • Consumer perception of wine quality is complex, often influenced by extrinsic factors.
  • Objective chemical analysis is needed to complement subjective consumer ratings.
  • Crowd-sourced data, like Vivino ratings, offers a large-scale perspective on consumer liking.

Purpose Of The Study

  • To investigate the correlation between the chemical composition of German white wines and consumer-perceived quality.
  • To utilize Vivino ratings as a proxy for consumer liking and quality endpoints.
  • To develop a predictive model for wine quality based on chemical profiles.

Main Methods

  • Analysis of German white wines using gas chromatography-mass spectrometry (GC-MS) and Fourier transform infrared spectroscopy (FTIR).
  • Application of mid-level data fusion and variable selection techniques.
  • Construction of a Partial Least Squares (PLS) regression model to predict Vivino quality ratings.

Main Results

  • Significant correlations were found between specific chemical properties and consumer-perceived quality.
  • The developed PLS model successfully predicted wine quality ratings based on chemical profiles.
  • Chemical composition is a valid predictor of consumer liking in wines.

Conclusions

  • Wine's chemical makeup can be used to predict consumer-perceived quality.
  • This research validates the use of chemical analysis for objective wine quality assessment.
  • Further development of predictive models holds promise for the wine industry.

Related Concept Videos

Classification of Titrimetric Analysis Based on Reaction Types 01:01

842

Titrimetric analysis in solution chemistry involves measuring the volume of solutions and is often called volumetric analysis. The standard solution of known concentration in the burette is called the titrant, whereas the solution of unknown concentration in the flask is called the analyte, or titrand. Titrimetric analyses can be classified into four types based on the reactions between the titrant and analyte.
Titrations between an acid and a base lead to neutralization reactions that form...

Chromatographic Methods: Classification 01:12

2.5K

Chromatographic techniques are classified in three ways: the classification is based on the physical state of the stationary and mobile phases, how the mobile phase and the stationary phase contact each other, or through the chemical or physical processes that isolate the components of the sample. Typically, the mobile phase is either a liquid or gas, while the stationary phase is either a solid or a liquid layer applied to a solid surface.
Chromatographic techniques are typically named by...

Predicting Reaction Outcomes 02:24

8.6K

Kinetics describes the rate and path by which a reaction occurs. In contrast, thermodynamics deals with state functions and describes the properties, behavior, and components of a system. It is not concerned with the path taken by the process and cannot address the rate at which a reaction occurs. Although it does provide information about what can happen during a reaction process, it does not describe the detailed steps of what appears on an atomic or a molecular level. On the other hand,...

Development of Analytical Methods 01:21

726

An analytical methodology can be divided into four sequential steps: technique, method, procedure, and protocol. A technique is a scientific principle that rationalizes a specific phenomenon through chemical measurements. Adapting a technique for analyzing a sample of interest is termed a method. The procedure outlines the directions for performing the analysis via an analytical method. The protocol is the detailed guidelines on the procedure, which should be strictly followed to obtain the...

Qualitative Analysis 01:10

692

Qualitative analysis is the process of identifying elements, ions, or compounds in an unknown sample. It is the first and most fundamental type of analysis based on the hierarchy of analytical goals. This hierarchy is significant as it provides a structured approach to scientific research, with qualitative analysis serving as the initial step, providing essential information before moving on to quantitative or other forms of analysis.
There are two main approaches to qualitative analysis:...

Applications of Molecular Taxonomy 01:20

115

Molecular taxonomy has revolutionized the understanding and classification of bacteria, providing precise insights into their diversity, evolutionary relationships, and ecological roles. By utilizing molecular techniques such as DNA sequencing and fingerprinting, researchers have made significant strides in various fields related to bacterial studies.Resolving Taxonomic AmbiguitiesMolecular taxonomy has been instrumental in distinguishing closely related bacterial species initially thought to...