Study of antimutagenic activity of some sorts of green tea

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Authors	PTÁČEK Petr MIKULCOVÁ Andrea MACUCHOVÁ Simona MÁROVÁ Ivana PEKAŘ Miloslav
Year of publication	2004
Type	Article in Proceedings
Conference	Pracovní setkáni biochemiků a molekularnich biologů, Sborník příspěvků
MU Faculty or unit	Faculty of Science
Citation
Field	Biochemistry
Keywords	Antimutagenity;Genotoxicity; Green tea
Description	In this work biological effects of choosed sorts of green tea were analyzed using antimutagenicity test with Sacchromyces cerevisiae D7 strain. In this test the frequency of spontaneous convertants at the tryptophan locus (trp 5-12/trp 5-27) and revertants at the isoleucine locus (ilv 1-92/ilv 1-92) was tested. In most samples significant dependence of antimutagenic effect on extract concentration was observed. Catechin standards did not show so high antimutagenic effects as green tea extracts, so, catchins probably are not major component responsible for complex antigenotoxic effects of tea extracts.