Microalgal Biotechnology: Integration and Economy by Clemens Posten

By Clemens Posten

With the excessive curiosity in renewable assets, the sector of algal biotechnology has passed through an immense jump in value in recent times. The e-book Microalgae Biotechnology - Integration and economic climate treats built-in methods to carry the excessive strength of microalgae into software, speed up the improvement of truly operating construction approaches and placed ultimately the goods out there. shut interplay of biology and strategy engineering turns into noticeable within the defined approaches. the massive impression of microalgal biotechnology on our destiny society is printed as a fascinating outcome of clinical development. This booklet will enable protagonists in academia and in addition to selection makers in and politics to get a transparent photo of present probabilities and destiny tendencies in microalgal biotechnology.

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Market prices for algae reach 50 $/kg dry mass or more. 4 Adaptation to cultural realities 9 The next steps will be food, feed for cattle and aquaculture. Especially this last item is intensively addressed facing empty oceans and the need for fish meal from natural catch to get healthy fish in aquaculture. Bulk products are going to follow where the final price of the product may not exceed 1 or 2 $/kg. For a remarkable contribution thousands of square km of algae production facilities are necessary.

The largest producer is Taiwan Chlorella Manufacturing & Co. Ltd. in Taipei (Taiwan) with an annual biomass output of 330 t in Taiwan and a further 300 t in another production site located in Hai-Nan (Hainan, China) using open ponds (Taiwan Chlorella Manufacturing Co. Ltd. 2012). In Germany, Chlorella biomass is produced in closed PBRs by Roquette Klötze GmbH & Co. KG (Klötze, Germany). The production plant consists of several units of tubular PBRs using glass tubes (500 km long) with a total volume of 700 m³.

3 Dunaliella salina Dunaliella salina (chlorophyta) is third on the list of most cultivated microalgae on a commercial scale globally (Tab. 1). Dunaliella salina is produced due to its antioxidant activity and its high β-carotene content, which can reach 14 % of dry weight (Metting 1996). The cells accumulate high amounts of carotenoids during growth under stress conditions such as high salinity or high temperatures, and thereby algae change in color from green to orange (Fig. 1) (Torzillo and Vonshak 2003).

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