**Author details**

Didem Özçimen\*, Benan İnan, Anıl Tevfik Koçer and Meyrem Vehapi

\*Address all correspondence to: ozcimen@yildiz.edu.tr

Bioengineering Department, Faculty of Chemical and Metallurgical Engineering, Yıldız Technical University, Istanbul, Turkey

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**5. Conclusion**

208 Microalgal Biotechnology

the systems such as CO2

**Author details**

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Algae have come into prominence as a future carbon-neutral biofuel feedstock because of their several advantages. Despite of having been studied for over 50 years now, there are still only just a few corporations that are cultivating algae for biofuel production on a large or commercial scale. The economics of producing algae for biofuel or bioproducts are not cost effective. For this reason, it is necessary to perform a techno-economic assessment and life cycle analysis before the pilot or large-scale microalgal productions to foreseen the pros and cons of the considered algal production system. In this chapter, before the evaluation of algal production with bioeconomical aspects, firstly, bioeconomy term has been described and its classification is given in detail. Also bioeconomy approaches of European countries and the world are presented to show the importance of microalgal production. Techno-economic assessment is explained and techno-economic assessment of microalgal productions are presented in detail and cost-effective approaches are evaluated case by case in basis. Also, two case studies are presented by us, to compare the economical inputs and outputs and environmental effect of

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Bioengineering Department, Faculty of Chemical and Metallurgical Engineering,

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\*Address all correspondence to: ozcimen@yildiz.edu.tr

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