Classification of Different Blueberry Cultivars by Analysis of Physical Factors, Chemical and Nutritional Ingredients, and Antioxidant Capacities

Blueberry fruits of different cultivars are featured with different quality indices. In this work, three types of quality factors, including 6 physical parameters, 12 chemical and nutritional components, and 3 antioxidant indices, were measured to compare and classify blueberry fruits from 12 differ...

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Published in:Journal of food quality 2020-09, Vol.2020 (2020), p.1-9
Main Authors: Wu, Si-Zhan, Fu, Hai-Yan, Yan, Si-Min, Shi, Qiong, Song, Juan, Xu, Lu
Format: Article
Language:English
Subjects:
Algorithms
Analysis
Antioxidants
Berries
Blueberries
Classification
Cultivars
Density
Discriminant analysis
Flavonoids
Food quality
Fruit
Fruits
Mathematical optimization
Phenols
Polyphenols
Principal components analysis
Sample size
Vitamin C
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creator Wu, Si-Zhan
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Shi, Qiong
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description Blueberry fruits of different cultivars are featured with different quality indices. In this work, three types of quality factors, including 6 physical parameters, 12 chemical and nutritional components, and 3 antioxidant indices, were measured to compare and classify blueberry fruits from 12 different cultivars in China. Using the autoscaled data of quality factors, unsupervised principal component analysis was performed for exploratory analysis of intercultivar differences and the influences of quality factors. A supervised classification method, partial least squares discriminant analysis (PLSDA), was combined with the global particle swarm optimization algorithm (PSO) and two multiclass strategies, one-versus-rest (OVR) and one-versus-one (OVO), to select discriminative quality factors and develop classification models of the 12 cultivars. As a result, OVO-PLSDA with 8 quality factors could achieve the classification accuracy of 0.915. This study will provide new insights into the quality variations and key factors among different blueberry cultivars.
doi_str_mv 10.1155/2020/9474158
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subjects Algorithms
Analysis
Antioxidants
Berries
Blueberries
Classification
Cultivars
Density
Discriminant analysis
Flavonoids
Food quality
Fruit
Fruits
Mathematical optimization
Phenols
Polyphenols
Principal components analysis
Sample size
Vitamin C
title Classification of Different Blueberry Cultivars by Analysis of Physical Factors, Chemical and Nutritional Ingredients, and Antioxidant Capacities
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