Mass Scale Culture and Preparation of Microalgal Paste
For the past two decades, microalgae are cultured commercially for secondary wastewater treatment and production of human food, animal feed, fertilizer, biofuel, fine chemicals and secondary metabolites. But, success of mass culture of microalgae depends on bacteria and other contaminated cells. If it is efficient method to culture of microalgae in mass scale means, it should be contains higher biomass productivity, can grow in low light conditions and maximum utilization of carbon dioxide. In recent years, most of the world researchers focused on to develop sustainable outdoor mass scale culture techniques in low cost. Most outdoor culture techniques result in low algal density, high contamination, problem in harvesting and lipid separation from the algal cells. The low algal cell productivity of mass scale techniques has prompted the development of enriched outdoor mass culture methods like raceway, photobioreactors and attached algal culture system (Fig. 1). This chapter reveals the various techniques involving culture, havest and preparation of microalgae paste.
The authors thank the authorities of Tihu College, Tihu, Assam and Bharathidasan University, Tiruhcirappalli, Tamil Nadu for providing the necessary facilities. Thanks are due to the Department of Biotechnology, Govt. of India, New Delhi, for providing the microalgae culture facility through extramural project (BT/PR 5856/AAQ/3/598/2012). The authors (SDK) thank the DBT for JRF and UGC for PDF (Ref.No.F./31-1/2017/PDFSS-2017-18-TAM-13681 dated 19.06.2017), (MD) thank the UGC, Govt. of India, New Delhi, for fellowship provided.
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