Food additive databaseacidulant, pH adjuster, seasoning, leavening agentChecked 2026-10-02
Monosodium Fumarate (Sodium Fumarate) フマル酸一ナトリウム（別名フマル酸ナトリウム）
Designated additiveNot on the EU additive list
- Purpose
- acidulant, pH adjuster, seasoning, leavening agent
- On the label
- “酸味料” (acidulant), “pH調整剤” (pH adjuster), “調味料（有機酸）” (seasoning (organic acid)), “膨脹剤” (leavening agent), “フマル酸Na” (sodium fumarate)
- Name in the List of Designated Additives
- フマル酸一ナトリウム（別名フマル酸ナトリウム） (No. 364)
In Japan
- The sodium salt of fumaric acid. It has no standards for use (rules on which foods it can be used in and how much).
- When used as an acidulant, pH adjuster, seasoning or leavening agent, it can be written under the group name, so the substance name may not appear. The short name when written by substance name is “フマル酸Na” (sodium fumarate) (CAA, Attachment to the Food Labeling Standards guidance).
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 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.
- The EU list of food additives has fumaric acid (E297), but its sodium salt is not listed and has no E number.
When it is labeled under a shared name
Monosodium Fumarate (Sodium Fumarate) may be declared on the label in the same way as “酸味料”. See Acidulant (acidity regulator) for details.
Sources
- List of Designated Additives — Japan Food Chemical Research Foundation (Japanese)
- Standards for use and storage of each additive — Japan Food Chemical Research Foundation (Japanese)
- EU food additive database (Japanese translation) — MAFF (Japanese)
- Regulation (EC) No 1333/2008 on food additives — EUR-Lex
- 消費者庁「食品表示基準について」別添 添加物1-1〜1-5（簡略名・用途名併記・一括名・栄養強化の範囲）東京都保健医療局の掲載版 (Japanese)
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.