The effect of high temperatures on the growth and biochemical composition of cultivated Palmaria palmata (Rhodophyta)
Semmouri, I.; Vanhercke, S.; Ferreira, A.S.; Knoop, J.; De Clerck, O.; Nunes, C.; Coimbra, M.A.; de Souza Mesquita, L.M.; Ventura, S.P.M.; Janssen, C.; Asselman, J. (2025). The effect of high temperatures on the growth and biochemical composition of cultivated Palmaria palmata (Rhodophyta). Mar. Biotechnol. 27(6): 167. https://dx.doi.org/10.1007/s10126-025-10548-4
In: Marine Biotechnology. Springer-Verlag: New York. ISSN 1436-2228; e-ISSN 1436-2236, more
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| Keywords |
Acids > Organic compounds > Organic acids > Fatty acids
Carbohydrates
Pigments
Palmaria palmata (Linnaeus) F.Weber & D.Mohr, 1805 [WoRMS]
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| Author keywords |
Nutritional value; Bioactive compounds; Antioxidant activity |
| Authors | | Top |
- Semmouri, I., more
- Vanhercke, S.
- Ferreira, A.S.
- Knoop, J., more
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- De Clerck, O., more
- Nunes, C.
- Coimbra, M.A.
- de Souza Mesquita, L.M.
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- Ventura, S.P.M.
- Janssen, C., more
- Asselman, J., more
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| Abstract |
Macroalgae are emerging as a promising resource for multiple applications in food and pharmaceutical industries owing to their potential as a rich resource of both nutritional and bioactive compounds. Here, we explore the influence of environmental conditions on the biochemical composition of the red seaweed Palmaria palmata, in relation to their growth potential. Palmaria palmata specimens were grown under different conditions for twelve weeks, including temperatures of 12, 15, and 17 °C, irradiance levels of 14 and 19 µmol m− 2 s− 1 and two nutrient conditions. Growth was assessed by measuring the relative growth rates of the seaweed. Biochemical composition (i.e., sugar, lipid, fatty acid, phycobiliprotein, and nitrogen content) was evaluated with Fourier-transform infrared spectroscopy for qualitative data and spectrophotometric and gas chromatography-mass spectrometry for quantitative analysis. The polyunsaturated fatty acid content of P. palmata peaked under nutrient-rich conditions at 12 °C and 14 µmol m⁻² s⁻¹, which coincided with the highest observed growth rate of the seaweed. In contrast, higher temperatures exhibited a positive correlation with protein and xylan content, although this was accompanied by a decrease in antioxidant properties. Besides, galactose-rich compounds and R-phycoerythrin content were significantly higher in P. palmata grown at 12 °C. The study effectively showed that the growth and chemical composition of P. palmata vary under different environmental conditions, demonstrating potential to be a source of different nutritious and health-promoting compounds by modulating the culture conditions that can maximize specific compounds able to provide health benefits. |
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