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Proximate analysis and fatty acid, mineral and soluble carbohydrate profiles of some brown macroalgae collected from Türkiye coasts

An erratum for this article can be found here: https://doi.org/10.1515/znc-2023-2001
  • Aysun Yucetepe ORCID logo EMAIL logo , Elif Feyza Aydar , Emine Şükran Okudan , Beraat Özçelik and Gökhan Durmaz
Published/Copyright: February 24, 2023
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Abstract

In this study, the fatty acid, carbohydrate, and mineral profiles and proximate composition of Halopteris scoparia, Padina pavonica, Zanardinia typus, Cladostephus spongiosum, Sargassum vulgare, and Sargassum acinarium brown macroalgae collected from Türkiye seas were determined. According to the results, the ash and total carbohydrate contents of all macroalgae ranged from 20.79 to 53.49% in dry weight (dw) and from 15.32 to 55.13% dw, respectively. Their protein, lipid and crude fiber contents changed between 4.22 and 9.89% dw, 0.25 and 0.90% dw, and 12.28 and 16.01% dw, respectively. Palmitic acid (29.36–48.55% dw) and oleic acid (8.92–20.92% dw) were at the highest levels in all brown macroalgae. In addition, they included prominent levels of saturated fatty acids (51.87–69.56% dw of total fatty acid content). Magnesium (6.97–18.78 mg/kg dw), potassium (1.34–3.78 mg/kg dw), iron (1.27–8.24 mg/kg dw), and manganese (63.10–252.23 μg/kg dw) were found to be the major minerals. The main soluble carbohydrates of macroalgae were found to be mannitol (1149.99–8676.31 mg/kg dw), glucose (368.78–1305.59 mg/kg dw), myo-inositol (225.96–956.78 mg/kg dw), fructose (137.05–689.21 mg/kg dw), and sucrose (189.55–328.06 mg/kg dw). This study revealed that brown macroalgae are particularly rich in potassium, magnesium, iron, manganese, and zinc and they may have potential for use in the food industry.


Corresponding author: Aysun Yucetepe, Department of Food Engineering , Faculty of Engineering, Aksaray University, 68100 Aksaray, Türkiye, E-mail:

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: None declared.

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Received: 2022-09-26
Accepted: 2023-01-26
Published Online: 2023-02-24
Published in Print: 2023-07-26

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