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Caulerpa cylindracea: First Insight into Its Nutritional Potential.

Neven Iveša1, Ines Kovačić1, Moira Buršić1

  • 1Faculty for Natural Sciences, Juraj Dobrila University of Pula, 52100 Pula, Croatia.

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Summary

This study reveals the invasive seaweed Caulerpa cylindracea, found in the Adriatic Sea, is rich in protein, fiber, essential minerals, and vitamins B12 and E. Its potential as a novel, nutrient-dense food source is highlighted.

Keywords:
Caulerpa cylindraceaamino acidsfatty acidsmineralsproximal compositionvitamins

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Area of Science:

  • Marine Biology
  • Food Science
  • Nutritional Biochemistry

Background:

  • The invasive seaweed Caulerpa cylindracea has significant ecological impacts in the Mediterranean.
  • Its nutritional composition and potential as a food source remain largely uncharacterized.

Purpose of the Study:

  • To conduct a comprehensive nutritional analysis of Caulerpa cylindracea from the Adriatic Sea.
  • To assess the potential of this invasive seaweed as a novel dietary resource.

Main Methods:

  • Samples of Caulerpa cylindracea were collected from the Northern Adriatic.
  • Standardized laboratory methods were used to analyze proximate composition, amino acids, minerals, vitamins, and fatty acids.
  • Analysis included quantification of essential nutrients and identification of toxic heavy metals.

Main Results:

  • Caulerpa cylindracea exhibits a balanced proximate profile with high protein (11.8 g/100 g DW) and fiber (24.4 g/100 g DW).
  • It is rich in essential minerals like iron, magnesium, manganese, and potassium, with no detected toxic heavy metals.
  • Elevated levels of vitamins B12 and E were observed, alongside a well-balanced essential amino acid profile.

Conclusions:

  • Caulerpa cylindracea presents a promising nutritional profile, suitable for consumption after desalination due to high salt content.
  • This invasive seaweed can be valorized as a sustainable, plant-based marine food source, particularly in the Mediterranean.
  • The study provides the first comprehensive nutritional data for Adriatic Caulerpa cylindracea, supporting its dual role in environmental management and food innovation.