Generate a correctly punctuated version of the following text: Green tea extract is obtained from unfermented leaves of Camelia sinensis and its composition essential oils common ingredient caffeine tannini catechici flavonoids cuercetin quercitrina amino acids vitamin C teaflavina tearubigina protein calcium iron fluorine alcaloidi theobromine theophylline dimetilxantina xantina adenina and main component gallata epigallocatechina
Green tea extract is obtained from unfermented leaves of Camelia sinensis and its composition essential oils, common ingredient, caffeine, tannini catechici, flavonoids (cuercetina, quercitrina), amino acids, vitamin C, teaflavina, tearubigina, protein, calcium, iron, fluorine, alcaloidi (theobromine, theophylline, dimetilxantina, xantina, adenina) and main component gallata epigallocatechina.