By Debabrata Das
This ebook seriously discusses diverse features of algal construction platforms and several other of the drawbacks relating to microalgal biomass creation, particularly, low biomass yield, and energy-consuming harvesting, dewatering, drying and extraction strategies. those offer a historical past to the cutting-edge applied sciences for algal cultivation, CO2 sequestration, and large-scale software of those systems.
In order to faucet the industrial capability of algae, a biorefinery suggestion has been proposed that can support to extract greatest merits from algal biomass. This refinery proposal promotes the harvesting of a number of items from the feedstock that allows you to make the method economically appealing. For the previous few a long time, algal biomass has been explored to be used in a number of items reminiscent of gas, agricultural plants, pigments and prescribed drugs, in addition to in bioremediation. to fulfill the massive call for, there was a spotlight on large-scale construction of algal biomass in closed or open photobioreactors. varied dietary stipulations for algal development were explored, reminiscent of photoautotrophic, heterotrophic, mixotrophic and oleaginous.
This publication is aimed toward a large viewers, together with undergraduates, postgraduates, teachers, power researchers, scientists in undefined, power experts, coverage makers and others who desire to comprehend algal biorefineries and in addition retain abreast of the newest developments.
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Extra resources for Algal Biorefinery: An Integrated Approach
Many species of microalgae have higher protein content, protein efficiency ratio, apparent biological value, true digestibility value of protein, amino acid content, proportion and availability of amino acids in their protein profile which give them 1 Introduction 17 advantages over other conventional food proteins (Becker, 2007). Japanese scientists found Chlorella as a good source of essential amino acid except methionine. Aspartic and glutamic acids are found to be large fraction of amino acid group in seaweeds, and in brown seaweed like Fucus sp.
G. g. biogas, syngas and bio-hydrogen) which can be used in engines and turbines and as feedstock for refineries. However, several drawbacks of microalgal biomass production should be solved, such as more efficient production, harvesting, dewatering, drying and extraction (if applicable). Thus, fuel-only algal systems are not plausible, at least not in the foreseeable future, and additional revenues are required. Microalgal production should be assisted by alternative energies, for mixing the culture, illumination, dewatering and processing, and drying.
Several brown algae such as Wakame, Kombu and Mozuki were found rich in fucoxanthin (Kanazawa, 2012). Fucoxanthin and the metabolite, fucoxanthinol exhibit diverse and significant biofunctions, such 18 D. Das as cancer preventing action, anti-obesity effect, improvement of lipid metabolism, and antioxidant potency. Heparinoids is a sulphated heteropolysaccharides known for antithrombotic action including anti-inflammatory action, but is prone to contamination. , 2012). Algal extracts were also found effective in controlling pathogenic microbial activity.
Algal Biorefinery: An Integrated Approach by Debabrata Das