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Questions and Answers
Which of the following statements is true about natural colors?
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?
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?
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?
What was the first microbial resourced dye mentioned in the text?
Which plant extract serves as the source of natural yellow pigment?
Which plant extract serves as the source of natural yellow pigment?
Why was it necessary to develop an E. coli that could produce indigo in a bioreactor?
Why was it necessary to develop an E. coli that could produce indigo in a bioreactor?
What led to the strong desire in the food industry to replace synthetic food dyes with natural alternatives?
What led to the strong desire in the food industry to replace synthetic food dyes with natural alternatives?
What makes natural colors preferable over synthetic dyes?
What makes natural colors preferable over synthetic dyes?
What is the main advantage of using plants as a source of natural pigments?
What is the main advantage of using plants as a source of natural pigments?
Which color has been sourced from leafy vegetables?
Which color has been sourced from leafy vegetables?
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