Identification and optimization of the key growth parameters involved in carotenoids production of the marine microalga Pavlova gyrans.
Sci Rep
; 14(1): 17224, 2024 07 26.
Article
en En
| MEDLINE
| ID: mdl-39060334
ABSTRACT
In this work, a multivariate analysis was carried out, using a Plackett-Burman (PB) design involving seventeen growth parameters, on carotenoids production of Pavlova gyrans (p < 0.10). Each assay was analysed regarding its content (mg g-1) of fucoxanthin (Fx), diatoxanthin, diadinoxanthin, ß-carotene (ßCar), α-carotene, and the sum of all carotenoids analysed individually (TCar). According to the statistical analysis, modified medium formulations were developed for the particular cases of Fx, ßCar, and TCar. The study showed that Fx content was positively affected by nitrogen supplementation and lower light intensities. Higher concentrations of nitrogen and iron increased the final content of ßCar as well. Similarly, salinity, light intensity, nitrogen, iron, and cobalt were identified as key factors in TCar production. The PB-based formulations showed significant improvements (p < 0.05) for TCar (11.794 mg g-1) and Fx (6.153 mg g-1) when compared to the control conditions (Walne's medium-2.010 mg g-1). Furthermore, effective control of key variables (e.g., light intensity) throughout P. gyrans growth proved successful (p < 0.05), increasing the productivity of Fx (0.759 mg L-1 d-1) and TCar (1.615 mg L-1 d-1).
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Carotenoides
/
Xantófilas
/
Microalgas
Idioma:
En
Revista:
Sci Rep
Año:
2024
Tipo del documento:
Article
País de afiliación:
Portugal
Pais de publicación:
Reino Unido