Food additive databaseenzymeChecked 2026-10-02

Lysozyme リゾチーム

Existing food additivePermitted in the EU (E1105)

Purpose: enzyme
On the label: “リゾチーム（卵由来）” (lysozyme (derived from egg)), “卵白リゾチーム（卵由来）” (egg white lysozyme (derived from egg)), “酵素（卵由来）” (enzyme (derived from egg))
Name in the List of Existing Food Additives: リゾチーム (No. 314)
Source and production: An enzyme that dissolves bacterial cell walls, obtained from egg white by treating it with an alkaline aqueous solution and a salt solution and purifying with a resin, or by treating it with a resin or by adding salt and then purifying by column or recrystallizing (definition in the specifications).

In Japan

An enzyme obtained from egg white that dissolves bacterial cell walls. Its purpose in the List of Existing Food Additives is “酵素” (enzyme), and the alternative name is “卵白リゾチーム” (egg white lysozyme).
No standards for use (the foods it can be used in or the maximum amounts) have been set.
Because it is made from egg, the egg allergen is shown on the label as “リゾチーム（卵由来）” (lysozyme (derived from egg)) or “酵素（卵由来）” (enzyme (derived from egg)) (examples in the Consumer Affairs Agency's allergen labeling guidance). It falls within the group name for enzymes.

Japan's standards for use

There are no standards for use that limit which foods or how much (the general standards for all additives still apply).

This is a summary of the standards for use. See the source list for the exact conditions.

In the EU

It is on the EU list of food additives (Regulation (EC) No 1333/2008, Annex II) as E1105.

Sources

Checked 2026-10-02. Rules and evaluations change over time. This page is a translation of our Japanese page; if they differ, the Japanese page is the reference.

This page lists facts stated in laws and in evaluations by public bodies; it is not a safety verdict. Additives used in Japan are approved by the government, which sets the foods and amounts they can be used in. The ADI is a guide to the amount that is considered safe to take every day over a lifetime.

Other substances used as enzyme

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