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Biologically active compounds in uncommon vegetables
VOCÍLKOVÁ, Soňa
My bachelor thesis dealed with determination of content of some phenolic compounds in some rare sorts of vegetable like Amaranthus tricolor, Chrysanthemum coronarium, Brassica rapa var. komatsuna, Brassica rapa ssp. japonica var. mizuna and mibuna, Brassica juncea. These uncommon species belonged to the asian leaf vegetable. At the present time these species are restrained over the whole world. Besides vitamins, these species of leaf vegetable contain also phenolic compounds like flavonoids, which reveal significant biological activity with positive effects on human health. The above mentioned sorts of vegetable were cultivated both on the experimental field on the open air and also in glasshouse. The content of phenolic derivatives was determined by high-performance liquid chromatography. In the selected plants were found these dominant compounds: Amaranthus tricolor contained derivatives of caffeic acid and rutin, in Chrysanthemum coronarium chlorogenic acid, dicaffeoyl acid and dicaffeoyl-succinylquinic acid. In the plants Brassica rapa var. komatsuna and Brassica juncea were determined derivatives of flavonols and phenolic acid, in varieties mizuna and mibuna derivatives of flavonols, phenolic acid and indols. Significant differences in the content of studied compounds was found between the plants cultivated under open air and in glasshouse. The plants cultivated under the open air have significantly higher content of studied compounds than those cultivated in glasshouse.
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