Comparing E220 - Sulphur dioxide vs E1105 - Lysozyme
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Popular questions
Is sulfur dioxide bad for you?
At high concentrations as a gas, sulfur dioxide is harmful and irritates the eyes and lungs; in foods at regulated levels (E220) it’s considered safe for most people. Some individuals—especially those with asthma or sulfite sensitivity—may experience reactions such as wheezing, hives, or stomach upset.
Is sulfur dioxide in food bad for you?
Within legal limits, sulfites (including SO2, E220) are approved preservatives and generally safe for the general population. They must be declared at ≥10 mg/kg or L, and sensitive individuals can react; most people stay below the accepted daily intake (about 0–0.7 mg/kg body weight), though heavy consumers of sulfited foods may approach or exceed it.
What is sulfur dioxide used for?
It’s an antioxidant and preservative that prevents browning and inhibits microbes to extend shelf life. Common uses include wines, ciders, dried fruits, fruit juices, and some pickled or processed foods.
Where does sulfur dioxide come from?
Food-grade sulfur dioxide is produced industrially by burning sulfur or processing sulfur‑containing ores, and small amounts can also form during fermentation. It also occurs naturally from volcanic emissions, but the additive used in foods is manufactured and added in controlled amounts.
Is sulfur dioxide in dried fruit bad for you?
It preserves color and prevents spoilage in dried fruit and is considered safe at permitted levels, but can trigger reactions in sulfite‑sensitive people, especially some asthmatics. If you’re sensitive, choose “unsulphured” dried fruit; rinsing may reduce surface residues but won’t remove all sulfites.
What does lysozyme do?
It acts as an antimicrobial preservative by breaking down bacterial cell walls (especially in Gram-positive bacteria), helping prevent spoilage and defects and extending shelf life.
What is a lysozyme?
An enzyme (muramidase), usually derived from hen egg white, approved as food additive E1105 and used to inhibit the growth of certain bacteria in foods.
Where is lysozyme found?
Naturally in egg white, human tears, saliva, and milk; in foods, it’s added to some cheeses and wines as a preservative.
Is lysozyme an enzyme?
Yes—it's an enzyme that hydrolyzes bonds in bacterial peptidoglycan, weakening their cell walls.
What foods contain lysozyme?
Some hard and semi‑hard cheeses and certain wines that use it to control lactic acid bacteria; where required, labels may list “lysozyme (from egg).”