Food additive databasefungicideChecked 2026-10-02
o-Phenylphenol and Sodium o-Phenylphenate オルトフェニルフェノール及びオルトフェニルフェノールナトリウム
Designated additiveNot on the EU additive list
- Purpose
- fungicide
- On the label
- “防かび剤（OPP）” (fungicide (OPP)), “防かび剤（オルトフェニルフェノール）” (fungicide (o-phenylphenol)), “防かび剤（OPP-Na）” (fungicide (OPP-Na)), “防ばい剤（OPP）” (fungicide (OPP))
- Name in the List of Designated Additives
- オルトフェニルフェノール及びオルトフェニルフェノールナトリウム (No. 96)
In Japan
- A fungicide used to prevent mold on citrus fruits. Under the standards for use, the foods it can be used in are limited to citrus fruits, and the amount remaining is set at up to 0.010 g/kg as o-phenylphenol.
- Fungicide is one of the eight purposes for which the purpose name must be written alongside; the short names are “OPP”, “オルトフェニルフェノールNa” (o-phenylphenol Na), and “OPP-Na”.
- It is among the additives that must be labeled even when the food is sold loose (not prepackaged) (annex to the “Food Labeling Standards” notice, additives 1-6).
Japan's standards for use
- Citrus fruits: maximum residue of 0.010 g/kg as o-phenylphenol
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.
When it is labeled under a shared name
o-Phenylphenol and Sodium o-Phenylphenate may be declared on the label in the same way as “防かび剤（OPP・TBZ・イマザリルなど）”. See Post-harvest fungicides (OPP, TBZ, imazalil etc.) 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 添加物関係（簡略名・用途名併記・一括名・栄養強化の範囲） (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.