Abstract
Microalgae are photosynthetic microorganisms with different morphological, physiological, and genetic characteristics. Microalgae, which grow in fresh and salt water, have an important role in the aquatic ecosystem due to their photosynthetic properties. Microalgae-derived bioactive components are produced as primary metabolism sources, such as proteins, various fatty acids, vitamins, or secondary metabolism products. Various microalgae can produce different bioactive compounds. Frequently studied microalgae can be listed as; Spirulina sp. (phycocyanin, tocopherols, phenolic acids), Haematococcus pluvialis (lutein, oleic acid, beta carotene), Chlorella sp. (carotenoids, eicosapentaenoic acid) and Dunaliella (trans-betacarotene, oleic acid, linolenic acid). It has been reported that these microalgae can be used in a wide variety of areas and can gain new uses day by day. They have antioxidative, antimicrobial, antihypertensive, immunomodulatory, and anticarcinogenic effects with their important bioactive components. Their antioxidant properties are of great interest in industrial applications. Microalgae have different colors due to their pigment contents and gain coloring properties. These properties emerge through various pigments called chlorophyll Chlorophyll is the green pigment and plays an important role in the photosynthesis of microalgae. microalgae species can produce different chlorophyll variants, making them appear in different colors. In addition to chlorophyll, the coloring properties of microalgae emerge through other pigments. For example, Microalgae also contain carotenoids with a red, orange, or yellow color and phycobilins with a blue, green, or red color. These various pigments and their coloring properties allow microalgae to be used in industrial, agricultural, and biotechnological applications.
| Keywords: | Microalgae Bioactive Compound Pigment Chlorophyll Carotenoid |