Nitrates in Food

BAÜ Fen Bil. Enst. Dergisi (2002).4.2 DETERMINATION OF NITRATES IN FOOD PRODUCTS OLGA KIROVSKA-CIGULEVSKA JZO Zavod za zdravstvena zastita, 3-ta Makedonska brigada br. 18, reverberate booth 809, 1000 Skopje, Republic of Macedonia Abstract Nitrates be really toxic matters, which are stimulant methemoglobinemy and convey carcinogenic matters handle nitrosoamines and nitrosoamides. The purpose of our research is to knock out content of nitrates in divergent kinds of intellectual nourishment products, which are produced in territory of the Republic of Macedonia and from import. Investigations were providing by an enzymatic method (reducing nitrates to nitrites) and later that, ascertain contents of nitrates spectrophotometricaly. All products are investigated by bioquant nitrate test. It was nominate that the specialty values for nitrates in investigated products are less consequently supreme levels for nitrates in our country and less then commandment i n WHO. Key words: nitrates, determination, food, spectrophotometry 1. Introduction Nitrates are very(prenominal) toxic matters, which number to nitrites at certain physiological conditions in the human personify. They cause metchemoglobinemy and produce carcinogenic matters like nitrosoamines and different health disturbances as changes in vitamin levels, disturbance in liothyronine production; negative influence in reproduction; changes in the blood etc. Almost all food products gestate nitrates, because nitrates are naturally confront in the soil (e.g. wet matters), the water and the air (e.g. nitrous gases). Nitrates negative influence on human health starts with their conversion to nitrites, by an enzyme nitrate reductase [1]. This enzyme is present in the saliva, in the gaster and everywhere in the human body where pH is low. Nitrites react with hemoglobin and produce methemoglobin, which enables to transport of atomic number 8 at the cellular level. Ne wborn organisms are very bleak to metchemog! lobinemy because they have anmature methemoglobin reductase...If you privation to get a full essay, regularize it on our website: OrderEssay.net

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