Phenol phycoremediation by Haematococcus pluvialis coupled with enhanced astaxanthin and lipid production under rac -GR24 supplementation for enhanced biodiesel production.

Autor:	Almutairi AW; Biological Sciences Department, Faculty of Science & Arts, King Abdulaziz University, Rabigh, Saudi Arabia.
Jazyk:	angličtina
Zdroj:	Saudi journal of biological sciences [Saudi J Biol Sci] 2023 Jun; Vol. 30 (6), pp. 103681. Date of Electronic Publication: 2023 May 05.
DOI:	10.1016/j.sjbs.2023.103681
Abstrakt:	The present study evaluated the impact of rac -GR24 on biomass and astaxanthin production under phenol stress coupled with biodiesel recovery from Haematococcus pluvialis . Phenol supplementation showed negative impact on growth, where the lowest biomass productivity of 0.027 g L -1 day -1 was recorded at 10 µM phenol, while 0.4 µM rac -GR24 supplementation showed the highest recorded biomass productivity of 0.063 g L -1 day -1 . Coupling 0.4 µM rac -GR24 at different phenol concentrations confirmed the potential of rac -GR24 to mitigate the toxic effect of phenol by enhancing yield of PSII yield, RuBISCo activity, and antioxidant efficiency, which resulted in improved phenol phycoremediation efficiency. In addition, results suggested a synergistic action by rac -GR24 supplementation under phenol treatment where rac -GR24 enhanced lipid accumulation, while phenol enhanced astaxanthin production. Dual supplementation of rac -GR24 and phenol showed the highest recorded FAMEs content, which was 32.6% higher than the control, with improved biodiesel quality. The suggested approach could enhance the economic feasibility of triple-purpose application of microalgae in wastewater treatment, astaxanthin recovery, and biodiesel production. Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. (© 2023 The Author(s).)
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu