Zmiany skladu chemicznego wybranych rynkowych produktow spozywczych w wojewodztwie katowickim

• Autorzy: Lorek E , Barczak M. , Krolik K.
• Języki publikacji: PL

Abstrakty

PL

Zbadano zawartość Mg, Fe, Mn, Cu, Pb i Cd w świeżych warzywach pochodzących z centralnych magazynów WSO w Katowicach i przeznaczonych na rynek woj. katowickiego oraz w mleku pochodzącym z zakupów rynkowych i wybranych Okręgowych Spółdzielni Mleczarskich w tym województwie. Ponadto w produktach tych oznaczono kaloryczność, suchą masę, popiół, a w mleku także zawartość białka. Oceniono wzajemne relacje pomiędzy poszczególnymi składnikami w badanych produktach w oparciu o wyliczone współczynniki korelacji.

EN

The levels of Mg, Fe, Mn, Cu, Pb and Cd were determined in fresh vegetables obtained from central storerooms of the WSO in Katowice which were intended for market in that Province. Vegetable samples were taken from the stores twice in the months from September to March in the yeras 1986-1987. At the same time similar analyses were done of raw milk and milk for consumption from the market and from certain dairy cooperatives in the Province. Besides the above metals, in the samples dry mass, ash, protein (by Kjeldahl method), calorie values (by burning in calorimetric bomb ZKL-4) were determined. The study included these mineral components which are necessary in human physiological requirements, and those which can be toxic if consumed in excess, and also those which cumulate selectively in plants and in animal and human organisms. The mutual relationships were evaluated of these components in the analysed food products based on calculated correlation coefficients. After the chemical analysis of these products it was found that the levels of Mg, Fe, Cu, Zn, Mn and Cd and Pb varied depending on the product and site of origin of the sample. The levels of heavy metals, such as Cd and Pb, were exceeding the acceptable values in the edible parts of vegetables grown in the Province of Katowice and intended for the market in that Province. The lowest levels of toxic metals and the highest content of mineral components indispensable for physiological functions were found in the vegetables brought from the neighbouring Province of Kielce. A highly significant positive correlation was demonstrated between the mutual proportions of certain mineral components in the studied products. In the vegetables this was observed in the case of Pb level and the levels of Cd, Zn, Cu and also between Pb level and ash content.

Słowa kluczowe

PL

mangan; zelazo; sklad chemiczny; zywnosc; rynek wewnetrzny; woj.katowickie; kadm; produkty spozywcze; warzywa; olow; analiza zywnosci; metale ciezkie; cynk; magnez; zanieczyszczenia zywnosci; skladniki mineralne; miedz

EN

manganese; iron; chemical composition; food; domestic market; Katowice voivodship; cadmium; food product; vegetable; lead; food analysis; heavy metal; zinc; magnesium; food contaminant; mineral component; copper

• Wydawca: -
• Czasopismo: Roczniki Państwowego Zakładu Higieny
• Rocznik: 1994
• Tom: 45
• Numer: 1-2
• Opis fizyczny: s.73-79,tab.,bibliogr.

Twórcy

autor

Lorek E

• Akademia Ekonomiczna, Katowice

autor

Barczak M.

autor

Krolik K.