Sodium orthophenyl phenol

International Numbering System (INS) for Food Additives: 232

Food additives Europe numbers: E232 

Sodium orthophenyl phenol (SOPP), also known by its E number E232, is a complex story in the world of food additives. Here's a breakdown of its past and present use:

Antimicrobial Properties:

• Function: SOPP has antifungal and antibacterial properties [1]. In the past, it was used as a preservative on citrus fruits like oranges and grapefruits to prevent spoilage caused by mold and bacteria [2].

Current Status:

• Banned in the EU: Due to some safety concerns, SOPP is no longer permitted as a food additive in the European Union [3].
• Limited Use in Some Countries: While banned in the EU, a few other countries might still allow its use on certain citrus fruits under specific regulations [4].

Safety Concerns:

• Potential health risks: Some studies have raised concerns about the potential carcinogenicity (cancer-causing) effects of SOPP, particularly in the urinary tract [5]. This is why its use in food has become restricted.

Alternatives:

• Safer preservatives: The food industry has adopted alternative preservatives for citrus fruits, like natural wax coatings or other approved fungicides considered safer than SOPP [6].

Overall:

Sodium orthophenyl phenol is no longer a common food additive due to safety concerns. While it might still be encountered in a limited way in some regions, it's generally not used in most countries. If you're unsure about any preservatives on produce, it's always best to choose fruits with a natural, unwaxed coating whenever possible.