sulfite


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Related to sulfite: hyposulfite, sulfite oxidase

sulfite

 [sul´fīt]
a salt of sulfurous acid. Sulfites are used as preservatives for salad, fresh fruit and vegetables, wine, beer, and dried fruit. In susceptible individuals, especially those with asthma, they can cause a severe reaction; because of this their use has been curtailed, and foods that contain them must be labeled.

sul·fite

(sŭl'fīt),
A salt of sulfurous acid; elevated in cases of molybdenum cofactor deficiency.

sulfite

Sulfiting agent Food industry An agent used as a food preservative; up to 5% of asthmatics are sensitive to sulfites–possibly due to low levels of sulfite oxidase, and respond to sulfites with nausea, diarrhea, bronchospasm, pruritus, edema, hives, potentially anaphylactic shock and death; some drugs used for asthma may contain sulfiting agents. See Food allergies, Pseudoallergies.

sul·fite

(sŭl'fīt)
A salt of sulfurous acid; elevated in cases of molybdenum cofactor deficiency.

Sulfite

A type of preservative that causes allergic reactions in some people.
Mentioned in: Bronchodilators
References in periodicals archive ?
Since it is the molecular form (S[O.sub.2]) of sulfur dioxide that has the most potent antimicrobial effect, and the percentage of sulfite that is in the molecular form is directly dependent on the pH, one must always consider both the pH and the free S[O.sub.2] when deciding how much sulfur dioxide to add to a wine.
However, some people with sulfite sensitivity find that supplementation with molybdenum (it is in many multi-vitamin formulations), vitamins B-12, B-6, and B-l, and the coenzyme tetrahydrofolate to be helpful.
It is evident from line weaver--Burk plot (double reciprocal figure 1, 2) and table 1 that sulfite ions at 1 mM concentration do not change [K.sub.m] (38 [micro]M) of the enzyme Pepcase at all the test concentrations (1.5 to 10.5 mM) of PEP whereas, [V.sub.max] decreased (8.3 [micro]M/min/g) as compared to the control.
A similar drop in viscosity is measured when DMS, dimethyl sulfite, and DMC are added to the epoxy resin also.
Current USDA rules allow wines containing fewer than 10 parts per million (ppm) of sulfites and made from organic grapes to carry the "certified organic" label.
But Roger Boulton, a viticulture professor at University of California (UC), Davis, says the FDA based its sulfite sensitivity statistics on a flawed experiment.
We examined the in vitro capacity of sulfite to prevent plasma lipid peroxidation.
There are six sulfites found in foods; sulfur dioxide, potassium bisulfite, sodium bisulfite, sodium sulfite, potassium metabisulfite, and sodium metabisulfite.
Police investigators suspect a poisonous gas known as hydrogen sulfite leaked out when engineers at the plant were conducting an experiment to convert discarded wool into fertilizer.
During purification of the sulfite oxidizing activity it became apparent that several fractions contained this activity.
The FDA estimates that one out of every 100 people is sulfite sensitive.