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15 July 2011

Onion skins have health benefits

Onion waste could have value as a healthy food ingredient - the skins are rich in fibre and flavonoids, while the bulbs contain sulphurous compounds and fructans.

More than 500,000 tonnes of onion waste are thrown away in the European Union each year. However, scientists say this could have a use as food ingredients. The brown skin and external layers are rich in fibre and flavonoids, while the discarded bulbs contain sulphurous compounds and fructans. All of these substances are beneficial to health.

Uses for different part of the onion

 
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