Food additive databaseprocessing agentChecked 2026-10-02

Ion Exchange Resin イオン交換樹脂

Designated additiveNot on the EU additive list

Purpose: processing agent
On the label: “イオン交換樹脂” (ion exchange resin) (when it is labeled)
Name in the List of Designated Additives: イオン交換樹脂 (No. 48)

In Japan

Used during food production to adsorb and separate components. The standards for use require that it be removed before the final food is completed.
For the existing food additives ε-polylysine and lactoperoxidase, the description of the manufacturing method says they are obtained “using an ion exchange resin” (CAA, Food Labeling Standards explanatory notice, Annex, Additives 2-1).
Substances removed before the food is completed qualify as “processing aids” (加工助剤) under the Food Labeling Standards, and labeling may be omitted.

Japan's standards for use

Must be removed before the final food is completed

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

In the EU

It is not on the EU list of food additives (Regulation (EC) No 1333/2008, Annex II), so it cannot be used as a food additive in the EU.

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 processing agent

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