Establishment and Application of A Product Quality Analysis and Comprehensive Evaluation System for Aronia melanocarpa Juices
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Abstract:
In this study, 14 kinds of commercially available Aronia melanocarpa juice products with a relatively high sales volume were used as the experimental materials, a product quality analysis and comprehensive evaluation system for Aronia melanocarpa juices was established through analyzing 18 quality indexes (including color, physicochemical properties, phenolic content and antioxidant capacity) along with principal component analysis(PCA). This system was used to evaluate commercially available Aronia melanocarpa juice products. The results of PCA showed that the cumulative contribution rate of the first four principal component variances reached 91.88. The h° (0.56), total acid (0.90), sugar-acid ratio (0.54:1), suspension stability (0.48), flavonoids (0.82), condensed tannin (0.82), FRAP (0.57), and DPPH (0.70) had higher load weights among the first four principal components, which were characteristic evaluation indexes of Aronia melanocarpa juices. In general, the concentrated oral liquid and 100% fruit juice products had a higher comprehensive quality, and ZH fruit juices had the best overall quality in its product category. Through establishing a product quality analysis and comprehensive evaluation system for Aronia melanocarpa juices, this study provides a database and theoretical support for the development and utilization of Aronia melanocarpa juice products, which is of great significance for the healthy development of the Aronia melanocarpa industry.
