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, surround 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 contrasting kinds of intellectual nourishment products, which are produced in district of the Republic of Macedonia and from import. Investigations were providing by an enzymatic method (reducing nitrates to nitrites) and later that, determine contents of nitrates spectrophotometricaly. All products are investigated by bioquant nitrate test. It was arrange that the specialty values for nitrates in investigated products are less and so supreme levels for nitrates in our country and less then code in WHO. Key words : nitrates, determination, food, spectrophotometry 1. Introduction Nitrates are truly toxic matters, which number to nitrites at certain physiological conditions in the human form.

They cause metchemoglobinemy and produce carcinogenic matters like nitrosoamines and different health disturbances as changes in vitamin levels, disturbance in thyroxine production; negative influence in reproduction; changes in the blood etc. Almost all food products rent nitrates, because nitrates are naturally have in the soil (e.g. humid 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 nit rate 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 type O at the cellular level. Newborn organisms are very beautiful to metchemoglobinemy because they have anmature methemoglobin reductase...If you privation to get a full essay, rescript it on our website: OrderEssay.net

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