Quality and Nutritional Value of ‘Chopin’ and Clone ‘JB’ in Relation to Popular Apples Growing in Poland
2022
Andrii Kistechok | Dariusz Wrona | Tomasz Krupa
The aim of the study was to describe the physicochemical properties, with particular emphasis on nutritional value, of apples ‘Chopin’ and clone ‘JB’. The new cultivars were compared with the cultivars commonly cultivated in Polish orchards, namely ‘Gala Brookfield’, ‘Šampion’, ‘Ligol’ and ‘Idared’. The study focuses on the evaluation of physicochemical characteristic (firmness, soluble solids content and titratable acidity) and the content of monosaccharides, sucrose and organic acids based on HPLC with an RI detector. In addition, the nutritional value of apples were described separately for the flesh and peel of the fruit, focusing on the assessment of the antioxidant activity and the content of total polyphenols, phenolic acids, flavonols using the HPLC technique. ‘Chopin’ and ‘JB’ clone apples are characterized by very high acidity, over 1%, which is related to the high content of malic acid. The red flesh ‘JB’ clone is characterized by a high content of bioactive compounds in both the peel and flesh of apples. High temperatures and a lack of precipitation contribute to a higher polyphenol content in apples, which proves that apart from the genetic features of the cultivars, the climatic conditions also determine the nutritional value of the fruit.
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