PL
W wybranych warzywach: buraku, pietruszce, selerze, ziemniaku i w ich obieżynach oraz w liściach i głąbie kapusty przeprowadzono równolegle oznaczenie zawartości azotanów, azotynów i witaminy C, chcąc znaleźć ewentualne korelacje pomiędzy ich zawartością w badanych częściach warzyw.
EN
A survey was conducted to determine vitamin C, nitrates, and nitrites content of 70 samples of selected vegetables. Vitamin C concentration was found to be higher (6.8 - 45.5%) in peelings than in vegetables without peels. Average nitrates concentration was found to be contained within acceptable limits except 43% of beetroot samples. Nitrates content was observed to be higher (22 - 54%) in the beetroot without peels and in the parsley in comparison with that in peelings of these vegetables. An inverse correlation between vitamin C and nitrates content was noted in the beetroot, parsley, and potato without peel. On the other hand, a positive correlation between vitamin C and nitrates content was observed in the cabbage (leaves) and the parsley. Nitrites were found to occur in the beetroot and potato.