Scientists have recommended that onion’s skin is helpful for human health. The researchers mentioned that the brown skin and external layers are rich in fibre and flavonoids, while the useless bulbs hold sulphurous.
The research was jointly conducted by Benitez“s research group and scientists from Cranfield University (United Kingdom). They carried out laboratory experiments to recognize the substances and possible uses of each part of the onion.
The study suggested that the brown skin could be used as a functional ingredient high in dietary fibre (principally the non-soluble type) and phenolic compounds, such as quercetin and other flavonoids (plant metabolites with medicinal properties). The two outer fleshy layers of the onion also contain fibre and flavonoids.
Meanwhile Phenolic compounds help to avoid coronary malady and have anti-carcinogenic properties. The high levels of these compounds in the dry skin and the outer layers of the bulbs also give them high antioxidant capacity.
The study is detailed in the journal Plant Foods for Human Nutrition.
The research was jointly conducted by Benitez“s research group and scientists from Cranfield University (United Kingdom). They carried out laboratory experiments to recognize the substances and possible uses of each part of the onion.
The study suggested that the brown skin could be used as a functional ingredient high in dietary fibre (principally the non-soluble type) and phenolic compounds, such as quercetin and other flavonoids (plant metabolites with medicinal properties). The two outer fleshy layers of the onion also contain fibre and flavonoids.
Meanwhile Phenolic compounds help to avoid coronary malady and have anti-carcinogenic properties. The high levels of these compounds in the dry skin and the outer layers of the bulbs also give them high antioxidant capacity.
The study is detailed in the journal Plant Foods for Human Nutrition.
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