Question

indigo dye is deep deep blue colured due to​

Answer 1

Answer:

presence of some blue pigment

Answer 2

Answer:

Several plants contain indigo, but low concentrations make them difficult to work with and the color is then more easily tainted by other dye substances, typically leading to a greenish tinge. ... The leaves were soaked in water and fermented to convert the glycoside indican present in the plant to the blue dye indigotin.

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