A Review on Onion Skin, a Natural Dye Source

Document Type : Original Article

Author

Cankiri Karatekin University, Faculty of Science, Department of Chemistry, 18100, Cankiri, Turkey

Abstract

The skin of the onion plant is a natural waste product. In this context, it is possible to evaluate their use in natural dyeing (cotton, wool, silk, etc.) and in lake pigment production by extracting the dyestuffs in these wastes. The skin that forms this outermost part contains some flavonoid (quercetin, etc.) and anthocyanidin (pelargonidin, etc.) natural dyestuffs. Quercetin glycosides are flavonoids liable for the majority of the flavonols in the plant. The amount of quercetin may increase from the inner part of the onion plant to the outer part. It is known that onion skin has been used in wool dyeing from past to present. It has traditionally been used in carpets and rugs. Onion skin was used in Anatolia, Turkey, where carpets and rugs were produced.

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