The Importance Of Natural Pigments
Natural pigments were discovered thousands of years ago and since then, they have been used. Pigments are present in all living matter and provide attractive colors that we observe at each step of our life and also play basic roles in the development of organisms. They are synthesized by all forms of life like plants, algae, bacteria and fungi. Natural pigments are used in many industries – as drug in pharmaceutical industry, dying agent in textile industry, color additives in food industry etc. They are either synthesized as primary metabolites which help in the development of organisms or as secondary metabolites that protects the organism.
Carotenoids are one such naturally occurring pigment synthesized as hydrocarbons (carotenes) and their oxygenated derivatives (xanthophylls) by plants and microorganisms (photosynthetic and non- photosynthetic). Some 700 different carotenoids are known to occur naturally, and new carotenoids continue to be identified. They are responsible for many of the red, orange, and yellow hues of plant leaves, fruits, and flowers, as well as the colors of some birds, insects, fish, and crustaceans. All four carotenoids (beta-carotene, alpha-carotene, gamma-carotene and beta-cryptoxanthin) have vitamin A activity in humans (Britton et al., 2004). Some familiar examples of carotenoid coloration are the oranges of carrots and citrus fruits, the reds of peppers and tomatoes, and the pinks of flamingos and salmon. They consist of eight isoprenoid
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Spectroscopy Of Food Dyes Lab Report
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Explain What Other Ways The Curved Line Was Used In The 1960's
519 Words | 3 PagesOur clothes are coloured, our food is coloured, we even colour our fingernails. There are many different types of colour like Primary colours, which are red, yellow and blue. They are the bold colours that are the key ingredients of secondary colours which are orange, purple and green. Every colour is different and has a deep history and mood attached to it. For example, fluorescent colours convey excitement and pastel colours are calming and mellow.
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642 Words | 3 PagesThere are few vegetables and fruits that turns to the color brown if their surface is exposed to oxygen. Once the veggies or fruits been exposed to oxygen, then the browning begins to appear, and electrons and hydrogen will be removed. This happens because of an enzyme called catechol oxidase. The enzyme will act on its substrate catechol to form a yellow compound which then reacts with the oxygen in the air and change into benzoquinone. The more concentration of the enzyme, the more browning appears.
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Research Paper On Dyes
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1371 Words | 6 PagesWhen carbohydrate is utilized, acids are formed which changes the colour of the medium from green to yellow
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