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Study regarding nitrate and nitrite content in cauliflower, from agro-food markets in Timisoara

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Author(s): Bulmaga ALINA | Lazureanu AUREL | Alexa ERSILIA | Negrea MONICA

Journal: Analele Universitatii din Oradea, Fascicula Biologie
ISSN 1224-5119

Volume: TOM XV;
Start page: 22;
Date: 2008;
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Keywords: caulliflower | nitrate | nitrite

ABSTRACT
In this study we followed the monitorization of nitrate and nitrite content in caulliflower. Caulliflower samples for the analyse have been prelevate from Timisoara agro-food markets, these proceed from four location of District of Timis: Tomnatic, Jimbolia, Sânandrei şi Cenad. Nitrates (NO3), proceed from complete ammonium oxidation in the presence of nitrification enzymes, but can appear also thanks to excessive nitrogen fertilisation. The nitrites (NO2), rise from incomplete ammonium oxidation in the presence of nitrification enzymes. Those appearance indicate an advanced stadium of decomposition process of nitrogen organic substances. Nitrate and nitrite content in cauliflower were done colorimetrically with the help of Rapid Test in the Laboratory for the Measurement of Residues of the Department of Agro-techniques of the U.S.A-V.M.B in Timisoara.
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