Effect of Climate Change on Algae Valuable Source of Medicinal Natural Compounds
The word algae represent a large group of different organisms from different phylogenetic groups, representing many taxonomic divisions. They are distributed worldwide in the sea, in freshwater and in moist situations on land. Algae grow rapidly, produce useful products, and provide environmental benefits. Algae have potential as foods, and vitamins, bioactive substances, polysaccharides and other valuable commercial products and also are useful as raw material for future biofuel production and liquid fertilizer. Algae can be classified into two main groups; first one is the microalgae, which includes blue green algae, dinoflagellates, bacillariophyta (diatoms) etc., and second one is macroalgae (seaweeds) which includes green, brown and red algae. Changes in global temperature and ocean chemistry associated with increasing greenhouse gas concentrations are forcing widespread shifts in biological systems. In response to warming, species ranges are shifting toward the poles, up mountainsides, and to deeper ocean depths. Concern for the environment and global climate change has increased in recent years, and algae can provide a number of significant environmental benefits. They remove carbon dioxide from the atmosphere, helping to reduce the harmful effects of the gas on climate change and the health of the environment. The aim of this chapter is to provide an overview of the current knowledge on these photosynthetic organisms regarding their environmental and pharmaceutical benefits.
KeywordsSeaweed Microalgae Natural product Greenhouse gas
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