SULPHITES

Dietary intake of sulphites by children in the Slovak Republic.

The mean dietary intake of sulphites by Slovak children aged 7 to 10 years was estimated. Calculations were based on a food model of a specific boarding-school in January, May, July and October while respecting the scientifically recommended dietary allowances. It was assumed that sulphites were used in the widest possible range of foods and at maximum permitted levels. Due to this fact and sin...

50 . The Action of Sulphites on the Cystine Disulphide Linkages of Wool

(R1 and R2, polypeptide chains.) The optimum pH for the reaction is 5. Increasing the temperature, time of reaction or concentration ofNaHSO3 does not cause more than about one-third of the disulphide-S to react [Elsworth & Phillips, 1941]. The reaction is slowly reversed when the bisulphited wool is rinsed with cold water, but it is possible to free the treated wool from uncombined NaHSO3 and ...

Drug eruption following high-calorie infusion: a possible systemic type IV allergic reaction to sulphites.

© 2015 The Authors. doi: 10.2340/00015555Journal Compilation © 2015 Acta Dermato-Venereologica. ISSN 0001-5555 Sulphites, such as sodium bisulphite and sodium metabisulphite, are widely used as antioxidants or preservatives in a wide range of substances, such as food, cosmetics and medications (1). It has been reported that sulphite intake can cause systemic type I allergic reactions, such as u...

The action of sulphites on the cystine disulphide linkages of wool: 4. Methylation of the thiol groups of bisulphited wools.

Adverse reactions to the sulphite additives

Sulphites are widely used as preservative and antioxidant additives in the food and pharmaceutical industries. Exposure to sulphites has been reported to induce a range of adverse clinical effects in sensitive individuals, ranging from dermatitis, urticaria, flushing, hypotension, abdominal pain and diarrhoea to life-threatening anaphylactic and asthmatic reactions. Exposure to the sulphites ar...