How Microalgae can treat the skin?5 answersMicroalgae have been found to have potential in treating the skin. They can reverse photoaging by delivering living microalgae to the deeper layers of the skin, which releases oxygen through photosynthesis, reduces inflammation, and promotes collagen regeneration. Algae and their bioactive compounds, such as polysaccharides, polyunsaturated fatty acids, and microalgal carotenoids, have been shown to have beneficial effects in wound healing applications. They can inhibit inflammatory cytokines, possess antioxidant properties, and exhibit antimicrobial activities. Some microalgae are resistant to UV rays and contain compounds that can mitigate UV damage. These compounds have been explored as potential alternatives for UV protection products. Additionally, microalgae extracts have shown cosmeceutical properties, including antioxidant, anti-aging, and anti-inflammatory activities, making them promising for use in skincare products.
What are compounds rich in microalgae?5 answersCompounds rich in microalgae include mycosporine-like amino acids (MAAs), scytonemin, carotenoids, vitamins, essential amino acids (EAAs), polyunsaturated fatty acids (PUFAs), minerals, polysaccharides, lectins, halogenated compounds, polyketides, agar-agar, alginic acid, carrageenan, enzymes, and fibers. Microalgae also produce proteins, lipids, vitamins, antioxidants, and pigments. Additionally, microalgae contain carotenoids, peptides, PUFAs, minerals, fiber, and vitamins. These bioactive compounds have various properties such as UV-screening, anti-inflammatory, antimicrobial, antioxidant, antibiotic, immunosuppressant, anticancer, and antiviral. They have potential applications in the fields of biotechnology, industry, pharmaceuticals, and cosmetics. Microalgae-derived compounds have been used in functional foods, dairy products, prebiotic and probiotic products, and beverages. Furthermore, microalgae compounds have shown potential for the treatment and management of neurologic and cell dysfunction-related diseases, including Alzheimer's disease, AIDS, and COVID-19. Microalgae are considered a diverse group of photosynthetic organisms with great potential for the discovery of novel bioactive compounds, including pigments, proteins, energy-rich storage molecules, functional polysaccharides, and essential fatty acids.
What are the types of microalgae that exist in petroleum refinery effluents?4 answersMicroalgae that exist in petroleum refinery effluents include Cyanophyta, Bacillariophyta, and Chlorophyta. The dominant algal group in these effluents is Cyanophyta, specifically the genus Oscillatoria, which has a high tolerance for oil pollution. Other microalgae groups present include Bacillariophyta and Chlorophyta. The diversity of the algal community in refinery effluents increases with the removal of pollutants, such as oils and phenols, during effluent treatment. The presence of these microalgae in petroleum refinery effluents can be used as an indicator for monitoring the quality of the effluents.
Which microalgal strain has the highest lipid content?3 answersChlorella vulgaris KP2 has the highest lipid content among the microalgal strains evaluated.
What is the composition of microalgae microbiome?4 answersThe composition of the microalgae microbiome is complex and diverse, consisting of a consortium of microorganisms including bacteria. The microbiome associated with microalgae can have significant impacts on the physiology of the microalgae, affecting their growth and performance. The microbiome is typically composed of various bacterial taxa, including Proteobacteria, Bacteroidetes, Firmicutes, and others. The specific composition of the microbiome can vary depending on factors such as the type of microalgae, the environment, and the initial conditions of the culture. Some bacterial taxa may be commonly present in most microalgae cultures, regardless of geographical location. The microbiome can play a crucial role in nutrient exchange, biofilm formation, and the removal of pollutants in microalgae-based wastewater treatment systems. Understanding the composition and dynamics of the microalgae microbiome is important for optimizing microalgae cultivation and harnessing their potential for various biotechnological applications.
What is the best way to analyze the effects of solar radiation and temperature on lipid formation in microalgae?5 answersThe best way to analyze the effects of solar radiation and temperature on lipid formation in microalgae is by studying the growth of different microalgae strains at different temperatures and analyzing changes in lipid content and fatty acid profiles. Additionally, a simplified temperature model for raceway reactors can be used to determine the temperature of the microalgae culture as a function of reactor design and environmental conditions, allowing for the analysis of the influence of temperature on microalgae performance at large scale. Furthermore, a predictive biomass productivity model can be used to define system design parameters for photobioreactor systems, taking into account temperature and light distribution, to optimize biomass productivity. Finally, Fourier transform infrared (FTIR) spectroscopy can be used to analyze the relative content of lipids in microalgae cells and their correlation with total lipid and fatty acid content, providing a meaningful technology for selecting microalgae rich in lipids.