Pigments Content (Chlorophylls, Fucoxanthin and Phycobiliproteins) of Different Commercial Dried Algae

• Type: Article in International Scientific Journal
• Date: 2020

Authors

Osorio, C (Author) Other; Machado, S (Author) Other; Peixoto, J (Author) Other; Bessada, S (Author) Other; Pimentel, FB (Author) Other; Alves, RC (Author) Other; Beatriz B P P Oliveira (Author) FFUP

Journal

The Journal is awaiting validation by the Administrative Services.

Title: SEPARATIONS

Vol. 7

Pages: 1-14

ISSN: 2297-8739

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 6 Citations

Other information

Authenticus ID: P-00S-A45

DOI: 10.3390/separations7020033

Abstract (EN): Algae are a complex, polyphyletic group of organisms, affordable and naturally rich in nutrients, but also valuable sources of structurally diverse bioactive substances such as natural pigments. The aim of this work was to evaluate the polar and non-polar pigment contents of different commercial dried algae (brown:Himanthalia elongata,Undaria pinnatifida,Laminaria ochroleuca; red:Porphyraspp.; and a blue-green microalga:Spirulinaspp.). The pigment extraction was carried out using different solvents (100% methanol, 100% methanol acid free, 100% ethanol, 90% acetone,N,N-dimethylformamide, dimethyl sulfoxide-water (4:1,v/v) and pH 6.8 phosphate buffer), selected according to their affinity for each class of pigments. Acetone proved to be an efficient solvent to extract chlorophylls from brown and red algae, but not fromSpirulinaspp.Porphyraspp. presented considerably higher levels of all pigments compared to brown algae, although Spirulinaspp. presented significantly higher (p<0.05) levels of chlorophylls, carotenoids and phycobiliproteins, compared to all macroalgae. The content of fucoxanthin extracted from the three brown algae was highly correlated to the carotenoid content. Within this group,Himanthalia elongatapresented the highest fucoxanthin/total carotenoids ratio. Although the yield of extraction depended on the solvent used, the algae studied herein are an interesting source of pigments of great value for a wide range of applications.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 14