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Updated by 217075431 on May 26, 2020
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A natural careteniod(canthaxathin) pigment produced by Micrococcus roseus replacing synthetic pigments

Micrococcus roseus is a gram positive bacterial cell living in tetrad environment. normal habitat for this specie is skin,water and soil. It is named after the caretenoid pigment it produces. Carotenoids are one of the important pigments, which are achieved from plant and microbial sources. These pigments that belong to the chemical group known as isoprenoid polyenes are lipid-soluble and yellow-orange-red in color. This microbe is known to produce this caretenoid pigment.


A picture of a micrococcus culture showing pink pigment. they are gram positive bacterial cells.

A picture of a micrococcus culture showing pink pigment. they are gram positive bacterial cells.

Micrococcus is a gram positive bacteria with size of about 0.5 to 3 mm. they typically appear in tetrads. Micrococcus typically lives in skin, water and air. Micrococcus has size ranging from 1-1.5mm, slightly convex,smooth and pink colored. it has an optimal temperature range of 25-35 degrees celsius. they are strictly aerobic organisms

Some biological activities of pigments extracted from Micrococcus roseus (PTCC 1411) and Rhodotorula glutinis (PTCC 5...

An in depth discussion of the caretenoid pigment produced from the micrococcus roseus microbe. this provides the details of the pigment and the usage of the pogment to the benefit of the human population

Isolation and Characterization of Carotenoid Pigments of Micrococcus roseus | Journal of Bacteriology

In addition to canthaxanthin, seven pigment fractions were isolated from Micrococcus roseus. They were purified by solvent partitioning and by column and thin-layer chromatography. Visible absorption spectra, chromatographic behavior, and partition coefficients of the pigments and derivatives prepared from the pigments were used in characterizing them. Both α- and β-carotene derivatives were present. The structure of one pigment was suggested as phoenicoxanthin (3-hydroxy-4,4′-diketo-β-carotene). Four other pigments were tentatively characterized as a dihydroxy-3,4-dehydro-α-carotene, a dihydroxy-α-carotene, a diketo-α-carotene, and a polyhydroxy-β-carotene. Two pigments were isolated in trace amounts and could not be characterized. All the pigments studied were isolated as mixtures of cis-trans isomers and all except the diketo-α-carotene were isolated as esters from M. roseus. Quantitation of the pigments showed that canthaxanthin (4,4′-diketo-β-carotene) represented 85% of the pigment recovered from extracts. Three of the other pigments contributed a significant proportion of the remaining pigments, whereas the other four were present in only small amounts. β-Carotene derivatives comprised 96% and α-carotene derivatives 4% of the pigments recovered from extracts.

Canthaxanthin and Farmed Salmon

This video is a Multimodal project on the side effects of canthaxanthin, a chemical that is added to farmed salmon feed.

What Are Carotenoids? | Live Science

Carotenoids are plant pigments responsible for bright red, yellow and orange hues. People who eat foods containing carotenoids get protective health benefits.