Classification of potato cultivars to establish their processing aptitude

Area of Science:

• Agricultural Science
• Food Science
• Biochemistry

Background:

• Commercial potato cultivars exhibit significant variations in nutritional composition and functional compounds, including resistant starch, total phenolic content, and antioxidant activity.
• Limited information exists regarding these specific differences among potato varieties.

Purpose of the Study:

• To characterize the nutritional value (carbohydrates, functional compounds) and instrumental parameters of eight potato cultivars common in Spain.
• To assess the utility of these parameters for classifying potato cultivars.

Main Methods:

• Utilized Pearson's correlations to identify significant interactions between potato constituents and properties.
• Employed principal component analysis (PCA) to reveal correlations among physicochemical properties and explain variance.

Main Results:

• Significant correlations were observed between various potato constituents and their properties (P < 0.05).
• The first two principal components from PCA explained 56.84% of the variance among the studied potato cultivars.
• PCA successfully differentiated and grouped the eight potato cultivars into three distinct clusters.

Conclusions:

• The eight potato cultivars were successfully classified into three groups based on their nutritional and functional profiles.
• Specific nutritional and functional parameters can indicate the potential efficacy of different cultivars for consumer nutritional needs.
• This research enhances the understanding of the biochemical basis of potato processing for higher-quality products.