The content of vitamin C, carotenoids, polyphenols, anthocyanins, and the antiradical activity against DPPH have been estimated in the fruits of Rosa hybrida and Rosa spinosissima and in their juices and the results were compared with literature data for Rosa rugosa. We evaluated the influence of the place of the collection of Rosa spinosissima fruits on qualitative features of its juices as well as the influence of the storage of juices from Rosa spinosissima and Rosa hybrida in different conditions (30°C, about 20°C in light and dark glass, 4°C and -18°C over 70 days) on the stability of the vitamin C and of other compounds.
The hybrid, as compared to Rosa rugosa, contains over 5 times more vitamin C and about 2 times more carotenoids and polyphenols. In the fruits of Rosa spinosissima the concentration of anthocyanins is very high (482 - 544 mg/100 g), however those pigments are unstable during storage, particularly in higher temperatures (20°C, 30°C) - in these conditions the losses reach 90%. The place of the cultivation and the collection of Rosa spinosissima fruits has substantial influence on the content of vitamin C, anthocyanins and polyphenols in the obtained juices.
You may also start an advanced similarity search for this article.
Citation rules
Licence
This work is licensed under a Creative Commons Attribution 4.0 International License.