What is the function of carotenoid in fish?

What is the function of carotenoid in fish?

Carotenoids are responsible for pigmentation of muscle in food fish and skin color in ornamental fish. Like all other animals fishes are unable of de novo synthesis of carotenoids and rely on diet for fulfillment of carotenoids.

What is the importance of carotenoids in plants?

Carotenoids serve two key roles in plants and algae: they absorb light energy for use in photosynthesis, and they provide photoprotection via non-photochemical quenching.

Do fish have carotenoids?

The predominant carotenoid in the integument of fish is a characteristic of the species and the most common are tunaxanthin (yellow), lutein (greenish-yellow), β-carotene (orange), α- and β-doradexanthins (yellow), zeaxanthin (yellow-orange), canthaxanthin (orange-red), astaxanthin (pink-red), echinenone (red), and …

Why is beta carotene used in some prepared fish food?

Some fish foods also contain additives such as sex hormones or beta carotene to artificially enhance the color of ornamental fish.

Do carotenoids contribute to photosynthesis?

Carotenoids are essential in oxygenic photosynthesis: they stabilize the pigment–protein complexes, are active in harvesting sunlight and in photoprotection. In plants, they are present as carotenes and their oxygenated derivatives, xanthophylls.

How do carotenoids protect chlorophyll?

Carotenoids Absorb In Wavelengths that Chlorophyll Does Poorly In. Meanwhile, the carotenoids are absorbing maximally at those wavelengths where chlorophyll does poorly (light blue to green). Once that light energy is absorbed, the carotenoids pass that energy on to a neighboring chlorophyll molecule.

Is beta-carotene good for fish?

Beta carotene one of the carotenoids responsible for the orange and red pigmentation of fish. As well as being a pigment, beta-carotene has been shown to have other biological and nutritional functions essential for fish growth and health.

Does fish contain beta-carotene?

It’s found in dairy products, fish oils, eggs, and meat (especially liver). The vitamin A your body makes from beta-carotene doesn’t build up in your body to toxic levels.

How do carotenoids help in photosynthesis?

Carotenoids are ubiquitous and essential pigments in photosynthesis. They absorb in the blue-green region of the solar spectrum and transfer the absorbed energy to (bacterio-)chlorophylls, and so expand the wavelength range of light that is able to drive photosynthesis.

What is the role of carotenoid pigmentation in aquaculture?

Pigmentation is one of the important quality attributes of the aquatic animal for consumer acceptability. Carotenoids are responsible for pigmentation of muscle in food fish and skin color in ornamental fish. The functions, sources and importance in aquaculture are discuss in this review

What are carotenoids and why are they important?

Carotenoids provide protection against several stressors, including UV radiation, reactive oxygen species and free radicals, have important roles in vision, and act as precursors of transcription regulators and in the immune system.

What do we know about carotenoid adaptations in bacteria?

In bacteria, carotenoids have also been linked to tolerance and adaptation to several stressful conditions that include salinity, radioactive compounds, pH and temperature ( Antón et al., 2000; Asker et al., 2007 ).

What is the future of aquaculture in 2020?

By the year 2020, as much as 20% of the world production of fish will be based on aquaculture. Properly formulated feeds are significant part of successful aquaculture. Carotenoids play a major role in commercial aquaculture.