E1105: Lysozyme
Main role: microbial control
Also listed as: egg lysozyme, muramidase
What is E1105 (Lysozyme)?
Lysozyme is an enzyme that breaks down components of certain bacterial cell walls. Food-use preparations are commonly derived from egg white and used in specified preservation applications. Its enzyme role is different from adding egg simply for flavor or texture.
What does it do in food?
Its main role is microbial control. Preservation is one part of a food safety system. Recipe acidity, processing, packaging, and storage also affect how a product keeps. Follow the finished product’s storage instructions even when a preservative is listed.
Food and formulation examples
- Specified cheese production
- Selected wine processing
These examples describe formulation roles, not a list of unrestricted legal uses. Availability and permitted applications differ by country and food category.
Label names and ingredient questions
Look for E1105, E 1105, or the ingredient name. Related names and label terms include egg lysozyme, muramidase. A family code can cover more than one specified form; check the full declaration when the distinction matters.
Egg-derived lysozyme can matter to someone managing an egg allergy. Read the allergen information and ask the manufacturer about the preparation rather than relying on the E number alone.
Is E1105 safe?
There is no meaningful personal risk estimate from an E number alone. Food-grade specifications, allowed uses, amount consumed, and individual circumstances all matter. The authorization record below gives the legal scope; it is not a claim that every possible use is appropriate.
A label identifies the ingredient but usually not its concentration. Calculating daily intake requires the amount in the food and the quantities eaten.
Authorization and conditions of use
The Great Britain food additive register lists E1105 as Lysozyme. This is an entry subject to its stated conditions, not unrestricted permission for every food. The record links to the applicable authorization terms. For an EU product, use the European Commission food additive database to check the relevant food category and limits. Other countries may use different names or rules.