KENGER (GUNDELİA TOURNEFORTİİ) BİTKİSİNDEKİ A, E, C VİTAMİNLERİ İLE MALONDİALDEHİT VE GLUTATYON MİKTARLARININ ARAŞTIRILMASI INVESTIGATION OF AMOUNTS OF A, E, C VITAMINS WITH MALONDIALDEHYDE AND GLUTATHIONE IN PLANT GUNDELIA TOURNEFORTII