Comparative evaluation of the nutritional value and the content of bioactive compounds in the fruit of individual species of chaenomeles and quince
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The objective of this study was to evaluate the nutritional value and the content of bioactive compounds in the fruit of individual species of chaenomeles and quince. The experimental material were the fruits of four species of chaenomeles (Chaenomeles×superba, Chaenomeles japonica apple-shape, Chaenomeles japonica pear-shape and Chaenomeles ssp.) and quince (Cydonia oblonga). The fruit were analyzed for dry matter, vitamin C, polyphenols, carotenoids and chlorophyll content. The obtained results showed that the species has an impact on the nutritional value and the content of bioactive compounds in the chaenomeles and quince fruits. The highest content of dry matter, total polyphenols, total phenolic acids as well as more total and individual phenolic acids (caffeic and p-coumaric acid) were found in quince fruits (Cydonia oblonga). Quince fruits Cydonia oblonga also contained the highest content of total flavonoids and individual flavonoids: quercetin-3-O-rutinoside, myrycetin and quercetin. The highest content of lutein and zeaxanthin was observed in fruits of Chaenomeles ×superba but Cydonia oblonga fruits contained significantly more beta-carotene and chlorophyll, both the total chlorophylls and individual chlorophylls: chlorophyll a and chlorophyll b. In contrast, the highest content of vitamin C was found in fruits Chaenomeles Japanese pear-shape.
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