Bioactive compounds of Rosa canina L. biotypes from spontaneous flora of Republic of Macedonia

Kostik, Vesna and Bauer, Biljana (2015) Bioactive compounds of Rosa canina L. biotypes from spontaneous flora of Republic of Macedonia. In: 2nd International Conference on Natural Products Utilization and safety, 14-17 Oct 2015, Plovdiv, Bulgaria. (Unpublished)

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The genus Rosa contains over 100 species that are widely distributed mostly in Europe, Asia, the Middle East and North America. Rosa canina L. (dog rose) is an erect shrub of up to 3.5 meters height, sometimes climbing; its branches are often curved or arched. Petals are white to pale pink, rarely deep pink and fruit ripens late. Information about the biology and biochemistry of Rosa canina L. has allowed a good documentation by presenting it in several ways (botanical, agro technical, chemical composition and uses).
The dog rose hips (Cynosbati fructus) comprise several biologically active compounds, such as: sugars, organic acids, pectins, flavonoids, tannins, carotenoids, fatty acids, vitamins (particularly vitamin C and also vitamins B1, B2, K, PP, E), macro- and microelements etc.
Rosa canina. L. fruits have constituted an important source of food and medicine for many cultures. Common food preparations using rose hips include juice, wine, tea, jelly, jam, as well as mixed with dried salmon eggs.
Dog rose can be found all the mountains in the Republic of Macedonia. Usually grows in areas exposed to the sun, mostly on the southern slopes outside the forest or roadsides.
The aim of our study was to evaluate the amount of the main phyto-chemicals (vitamin C, total polyphenols, and total flavonoids) content in the dog rose pulp obtained from two genotypes var. transitoria, altitude 1120 m, and var. assiensis, altitude 410 m. The results of our study revealed that regarding the content of vitamin C, the results have significant difference between the studied genotypes: 432.2 mg/100 g dry pulp for var. transitoria versus 154.3 mg/100 g dry pulp for var. assiensis. Contrary to these findings, the content of total polyphenos was found to be similar for the both genotypes: 594.3 mg/100 g dry pulp for var. transitoria and 570.3 mg/100 g dry pulp for var. assiensis. The content of total flavonoids expressed as mg quercitin/100 g dry pulp were 131 for var. transitoria and 172.4 for var. assiensis.
According to the obtained results, it can be concluded that the content of vitamin C in the pulp of Rosa canina. L is in direct correlation of the altitude where the plant grows. Statistical difference (p≥ 0.05) was not found for the content of the total polyphenols between both varsities.

Keywords: flavonoids, phyto-chemicals, polyphenols, Rosa canina, vitamin C

Item Type: Conference or Workshop Item (Poster)
Subjects: Medical and Health Sciences > Other medical sciences
Divisions: Faculty of Medical Science
Depositing User: Vesna Kostik
Date Deposited: 21 Oct 2015 08:19
Last Modified: 21 Oct 2015 08:19

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