Sustainable cultivation of Porphyridium cruentum via agroindustrial by-products: A study on biomass and lipid enhancement
Metadatos
Mostrar el registro completo del ítemAutor
Luca Russo, Giovanni; Luca Langellotti, Antonio; Verardo, Vito; Martín García, Beatriz; Oliviero, Maria; Masi, PaoloEditorial
Elsevier
Materia
Food waste Microalgae Waste valorization
Fecha
2024-08-05Referencia bibliográfica
G.L. Russo et al. 60 (2024) 103341. [https://doi.org/10.1016/j.bcab.2024.103341]
Patrocinador
ERA-Net SUSFOOD2 project SUSPUFA, ID 145, with funding provided by the Italian Ministry of Education, Universities, and Research (MIUR) and the Spanish Ministry of Science, Education, and Universities/Spanish State Research Agency (PCI 2018-093,178); European Union's Horizon 2020 research and innovation programResumen
This study explored the cultivation of Porphyridium cruentum using beet molasses and corn steep
liquor (CSL) as alternative agri-waste substrates. The objective was to enhance the biomass and
lipid production of P. cruentum, known for its potential as an industrial EPA producer. Using a
Box-Behnken Design (BBD) as part of the response surface methodology (RSM), we investigated
the effects of beet molasses, CSL, and F/2 nutrients on the microalga's cultivation. The results
demonstrated a significant influence of these factors on the final cell count and lipid content over
an 8-day cultivation period. Specifically, optimal growth conditions were identified at approximately
1.78 g/L of molasses and 1.89 g/L of CSL, yielding a cell count of 12.1 × 106 cells/mL
and a lipid content of 24.48%. Validation experiments reaffirmed these findings, with observed
results closely aligning with predicted values. Optimized media achieved also a significant higher
content of carotenoids and phycobiliproteins compared to the standard media. This research
highlights the potential of using agro-industrial by-products for large-scale cultivation of P. cruentum,
offering a sustainable approach for enhancing lipid and pigment production.