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Natural Colors Sourced from Plants, Animals, and Microorganisms

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Natural Colors Sourced from Plants, Animals, and Microorganisms

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Questions and Answers

Which of the following statements is true about natural colors?

They are preferred over synthetic dyes due to their biodegradability (correct)

They are all hazardous to the environment

They are all toxic to living beings

They cannot be sourced from plants

What is the potential advantage of using microbes as a source of colored compounds?

They proliferate rapidly and are in abundant supply (correct)

They are completely non-toxic to living beings

They are inert and do not cause any environmental impact

They can only produce a limited range of colors

What is the source of natural red color mentioned in the text?

Indigofera suffruticosa

Marigold

Paprika (seeds of Capsicum annuum) (correct)

Saffron

What was the first microbial resourced dye mentioned in the text?

Indigo Signup and view all the answers

Which plant extract serves as the source of natural yellow pigment?

Marigold Signup and view all the answers

Why was it necessary to develop an E. coli that could produce indigo in a bioreactor?

To meet the growing demand for indigo Signup and view all the answers

What led to the strong desire in the food industry to replace synthetic food dyes with natural alternatives?

Increased societal concern surrounding the negative impact of synthetic food dyes Signup and view all the answers

What makes natural colors preferable over synthetic dyes?

They are non-toxic and environmentally friendly Signup and view all the answers

What is the main advantage of using plants as a source of natural pigments?

Plants are consumed as fruits and vegetables Signup and view all the answers

Which color has been sourced from leafy vegetables?

Green Signup and view all the answers