<abstract xmlns="http://www.w3.org/1999/xhtml"><p> The possibility of using RAS waste water as a cultivation medium for Desmodesmus armatus (Chod.) Hegew. was investigated. Algal biomass increased continuously reaching its maximum on the day 40 of cultivation. D. armatus culture was characterized by a maximum content of total proteins of 23% on day 40 of cultivation. At the same time, 17 proteinogenic amino acids, including 9 replaceable and 8 essential acids, were detected and identified in D. armatus biomass. Among these amino acids, maximum contents of asparagine and glutamine were noted. A gradual increase in the number of total photosynthetic pigments until day 40 of cultivation was also observed. On day 40, the content of chlorophyll a, b, and carotenoids in D. armatus cells was maximal at 11.17, 7.07, and 12.05 mg g<sup>-1</sup> dry weight, respectively. Therefore, cultivating microalgae D. armatus in RAS waste water permits obtaining an active growing culture that is characterized by a constant increase of biomass and high nutrient contents.</p></abstract>

The possibility of using RAS waste water as a cultivation medium for Desmodesmus armatus (Chod.) Hegew. was investigated. Algal biomass increased continuously reaching its maximum on the day 40 of cultivation. D. armatus culture was characterized by a maximum content of total proteins of 23% on day 40 of cultivation. At the same time, 17 proteinogenic amino acids, including 9 replaceable and 8 essential acids, were detected and identified in D. armatus biomass. Among these amino acids, maximum contents of asparagine and glutamine were noted. A gradual increase in the number of total photosynthetic pigments until day 40 of cultivation was also observed. On day 40, the content of chlorophyll a, b, and carotenoids in D. armatus cells was maximal at 11.17, 7.07, and 12.05 mg g-1 dry weight, respectively. Therefore, cultivating microalgae D. armatus in RAS waste water permits obtaining an active growing culture that is characterized by a constant increase of biomass and high nutrient contents.

Cultivating Desmodesmus armatus (Chod.) Hegew. in recirculating aquaculture systems (RAS) waste water

Department of Biochemistry and Biotechnology, Yuriy Fedkovych Chernivtsi National University, Ukraine

Fisheries & Aquatic Life

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

The possibility of using RAS waste water as a cultivation medium for Desmodesmus armatus (Chod.) Hegew. was investigated. Algal biomass increased continuously...

Cultivating Desmodesmus armatus (Chod.) Hegew. in recirculating aquaculture systems (RAS) waste water

Publié en ligne: 26 nov. 2015

Pages: 155 - 162

Reçu: 05 févr. 2015

Accepté: 02 août 2015

DOI: https://doi.org/10.1515/aopf-2015-0018

Mots clés
biomass, chlorophyll a, b, carotenoids, recirculating water system

© Archives of Polish Fisheries

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Cultivating Desmodesmus armatus (Chod.) Hegew. in recirculating aquaculture systems (RAS) waste water

Publié en ligne: 26 nov. 2015

Pages: 155 - 162

Reçu: 05 févr. 2015

Accepté: 02 août 2015

DOI: https://doi.org/10.1515/aopf-2015-0018

Mots clésbiomass, chlorophyll a, b, carotenoids, recirculating water system

© Archives of Polish Fisheries

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Mots clés
biomass, chlorophyll a, b, carotenoids, recirculating water system