Extraction of natural pigments from marine macroalgae waste

• Type: Article in International Conference Proceedings Book
• Date: 2020-09-04

Authors

Manuel Fonseca Almeida (Author) FEUP; Sara Pardilhó (Author) FEUP; Joana Dias (Author) FEUP; Maria Beatriz P. P. Oliveira (Author) FFUP; Susana Machado (Author) FFUP; Sílvia Maria F. Bessada (Author) FFUP

Conference proceedings International

Title: Wastes: Solutions, Treatments and Opportunities III - Selected papers from the 5th International Conference Wastes: Solutions, Treatments and Opportunities, 2019

Pages: 181-186

5th International Conference Wastes: Solutions, Treatments and Opportunities, 2019

4 September 2019 through 6 September 2019

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Authenticus ID: P-00R-RTT

DOI: 10.1201/9780429289798-29

Abstract (EN): The need to replace synthetic pigments and the richness of marine macroalgae in natural pigments make their study relevant as a source of such valuable compounds. In the present study, marine macroalgae waste collected at a Northern Portugal beach was used aiming pigments extraction. Saccorhiza polyschides (brown algae) was the most abundant specie. The biomass (freeze-dried and ground to <1 mm) was subjected to pigments extraction using six different solvents and their amounts were evaluated through their maximum absorption using UV spectrophotometry. The results showed as promising the use of marine macroalgae waste as a natural source of pigments and acetone as the best solvent for extraction, followed by methanol. Chlorophyll a was found as the predominant pigment in the biomass with a maximum of 1685 µg g¿1 extracted using 90% acetone. Carotenoids and fucoxanthin could also be extracted with methanol (174 µg g¿1 ) and DMSO (252 µg g¿1 ), respectively. © 2020 Taylor & Francis Group, London, UK.

Language: English

Type (Professor's evaluation): Scientific

Notes: S. L. Pardilhó, S. Machado, S. M. F. Bessada, M. F. Almeida, M. B. P. P. Oliveira, J. M. Dias (2019), Extraction of natural pigments from marine macroalgae waste, Wastes: Solutions, Treatments and Opportunities III (pp. 181-186). Vilarinho, Castro, Gonçalves & Lopes (eds.). London: Taylor & Francis Group, ISBN: 978-0-367-25777-4

No. of pages: 6