Q.Which one of the chemical substance is responsible for the yellow colour in turmeric ? Mention the uses of that chemical substance.

A natural plant dye such as henna is a safer, skin-friendly alternative to a synthetic chemical dye.

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Synthetic/chemical dyes can cause allergic or irritant contact dermatitis in sensitive individuals, because of the harsh synthetic chemical compounds (such as azo dyes or para-phenylenediamine) they often contain. A safer alternative is a natural, plant-derived dye, which is generally gentler on the skin, biodegradable, and more environmentally friendly than a synthetic dye.

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Curcumin, a polyphenolic compound present in the rhizome of turmeric (Curcuma longa, family Zingiberaceae), is responsible for its yellow colour and has wide culinary, medicinal and cultural uses.

The chemical substance responsible for the yellow colour of turmeric is curcumin, a polyphenolic pigment present in the powdered rhizome of Curcuma longa (family Zingiberaceae).

Uses of curcumin:

1. Food colourant and spice: it is widely used as a natural yellow colouring agent and flavouring spice in cooking, especially in Indian cuisine.
2. Medicinal uses: curcumin has antiseptic, antibacterial, antioxidant and anti-inflammatory properties, and turmeric is traditionally used in Ayurvedic and Siddha medicine to treat wounds, cuts, skin infections, and digestive ailments. …