nitrites


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nitrites

Chemistry
A family of chemically stable forms of inorganic nitrogen that are not present in significant amounts in the environment. Nitrites in the blood originate from bacterial conversion of nitrates present in vegetables, as well as from nitrites ingested as preservatives (e.g., sodium nitrite, used as a preservative for fish and meats, such as hot dogs, bacon, corned beef, ham, liverwurst or salami), which have been associated with allergic reactions and formation of methaemoglobin. Nitrites are potentially toxic, given their conversion to carcinogenic nitrosamines.

Lab medicine
The reduction products of nitrates by bacteria in urine. In a standard dipstick test, nitrites combine with sulfanilamide on the dipstick, resulting in diazonium salt formation which, in the presence of a dye on the dipstick, forms a coloured azo dye.
References in periodicals archive ?
Nitrates don't pose much of a health risk to animals, it's when they're converted into nitrites that things change.
And it's time for the USDA to make sure that labels don't deceive consumers into thinking that meats preserved with celery powder are safer than those preserved with nitrite.
Total nitrite and nitrate (NOx) levels were measured by using the Griess reaction according to the method by Tracey et al (9).
In contrast, selected SBIs may occur when the culture is "positive" without inflammation or nitrites. The first of three examples is a renal parenchymal abscess, where bacteria enter the urine sporadically in only small numbers, and do not actually infect the urinary tract mucosa.
Otlog, "Content of nitrates and nitrites in early vegetables and potatoes sold in the marketplace of Bialystok in the year 1992," Roczniki Panstwowego Zakladu Higieny, vol.
The concentration of Nitric oxide in serum sample was determined from standard curve established by 0 to 120[micro]mol/L of sodium nitrite. By taking OD of the serum sample, SERUM NITRITE is calculated by using the following formula from the standard curve.
Nitrate is converted to nitrite in the rumen or first stomach of livestock, which depletes the blood of oxygen.
(https://wellnessmama.com/416804/nitrates-in-food/) Nitrates and Nitrites
Nitrate is broken down into nitrite in the bloodstream and can cause death in two hours.
According to a Freedom of Information request, 20 out of 22 local authorities in Wales have admitted their schools are serving meat containing nitrites to pupils as young as just four years old.