Onion 













Bulb of Allium cepa, a vegetable of the Allium genus grown worldwide.
Characteristics
- Contains organosulfur compounds released when the bulb is cut or crushed.
- Rich in flavonoids such as quercetin, especially in the dry outer skin.
- Stores its carbohydrates as fructans.
- Allium cepa L. bulb extract: approved EU basic substance (Regulation 2021/81).
- Traditionally used in macerations and plant extracts.
Role in the preparation: Provides plant material, sulfur compounds and sugars to macerations and fermented plant extracts.
Caution: Use fresh food-grade bulbs, keep the preparation in a cool place and check local regulations before any use.
Sources: EUR-Lex - Commission Implementing Regulation (EU) 2021/81 approving the basic substance Allium cepa L. bulb extract · National Onion Association - Phytochemical brochure
Documentary information: this is neither a recommendation for use nor a plant-protection or veterinary claim. Check your country's regulations before any use.