Zawartosc azotanow i azotynow w warzywach rynkowych we Wroclawiu w latach 1996-1997

• Autorzy: Szymczak J. , Prescha A.
• Języki publikacji: PL

Abstrakty

PL

Oznaczano zawartość azotanów i azotynów w warzywach pochodzących z handlu i nabywanych na terenie Wrocławia. Stwierdzono przekroczenie dopuszczalnej zawartości azotanów w badanych próbkach warzyw. Zawartość azotynów była niska.

EN

The aim of analytical investigation included and nitrite contents in 8 common vegetables: cucumber, lettuce and radish in relation to the in this paper was the determination the nitrate cabbage, carrot, parsley, potato, garden beet, acceptable levels of nitrates. The samples of vegetables were taken from detail shops in Wrocław in the years 1996-1997. A total of 151 samples of vegetables were analyzed. The nitrate and nitrite level was determined collorimetricaly with sulfanilic acid after previous reduction of nitrates to nitrites by means of cadmium column. The acceptable values of nitrates were exceeded in 82% of the samples of radish and in 65% samples of lettuce. The smallest amount of samples with excess of the acceptable nitrate levels were found in potato, carrot and cucumber. It was found, that the nitrate content in the greenhouse vegetables: lettuce, cucumber and radish was greater than in the field vegetables. The potato, cabbage and carrot investigated after winter storage comprised lower content of nitrates than in freshly harvested. Nitrite accumulation in investigated vegetables was low, but the highest concentrations were found in lettuce and radish form greenhouse.

Słowa kluczowe

PL

azotany; dawki dopuszczalne; zawartosc azotynow; zawartosc azotanow; handel detaliczny; azotyny; Wroclaw; rynek; warzywa

EN

nitrate; acceptable dose; nitrite content; nitrate content; retail trade; nitrite; Wroclaw city; market; vegetable

• Wydawca: -
• Czasopismo: Roczniki Państwowego Zakładu Higieny
• Rocznik: 1999
• Tom: 50
• Numer: 1
• Opis fizyczny: s.17-23,tab.,bibliogr.

Twórcy

autor

Szymczak J.

• Akademia Medyczna, 50-140 Wroclaw, pl.Nankiera 1

autor

Prescha A.