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Characterization of low molecular weight sulfur species in seaweed from the Antarctic continent.
Rondan, Filipe Soares; Pisarek, Paulina; de Maria, Mikel Bernabeu; Szpunar, Joanna; Mesko, Marcia Foster.
Afiliación
  • Rondan FS; Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, Capão do Leão, RS, 96160-000, Brazil.
  • Pisarek P; IPREM, Institute of Analytical and Physical Chemistry for the Environment and Materials, UMR 5254 CNRS-UPPA, Hélioparc, 2, Av. Angot, 64053, Pau, France.
  • de Maria MB; IPREM, Institute of Analytical and Physical Chemistry for the Environment and Materials, UMR 5254 CNRS-UPPA, Hélioparc, 2, Av. Angot, 64053, Pau, France.
  • Szpunar J; IPREM, Institute of Analytical and Physical Chemistry for the Environment and Materials, UMR 5254 CNRS-UPPA, Hélioparc, 2, Av. Angot, 64053, Pau, France.
  • Mesko MF; IPREM, Institute of Analytical and Physical Chemistry for the Environment and Materials, UMR 5254 CNRS-UPPA, Hélioparc, 2, Av. Angot, 64053, Pau, France. joanna.szpunar@univ-pau.fr.
Anal Bioanal Chem ; 416(11): 2871-2882, 2024 May.
Article en En | MEDLINE | ID: mdl-38581531
ABSTRACT
Antarctic seaweeds are vital components of polar marine ecosystems, playing a crucial role in nutrient cycling and supporting diverse life forms. The sulfur content in these organisms is particularly interesting due to its implication in biogeochemical processes and potential impacts on local and global environmental systems. In this study, we present a comprehensive characterization of seaweed collected in the Antarctic in terms of their total sulfur content and its distribution among different classes of species, including thiols, using various methods and high-sensitivity techniques. The data presented in this paper are unprecedented in the scientific literature. These methods allowed for the determination of total sulfur content and the distribution of sulfur compounds in different fractions, such as water-soluble and proteins, as well as the speciation of sulfur compounds in these fractions, providing valuable insights into the chemical composition of these unique marine organisms. Our results revealed that the total sulfur concentration in Antarctic seaweeds varied widely across different species, ranging from 5.5 to 56 g kg-1 dry weight. Furthermore, our investigation into the sulfur speciation revealed the presence of various sulfur compounds, including sulfate, and some thiols, which were quantified in all ten seaweed species evaluated. The concentration of these individual sulfur species also displayed considerable variability among the studied seaweeds. This study provides the first in-depth examination of total sulfur content and sulfur speciation in brown and red Antarctic seaweeds.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Algas Marinas Idioma: En Revista: Anal Bioanal Chem Año: 2024 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Alemania
Texto completo
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PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Algas Marinas Idioma: En Revista: Anal Bioanal Chem Año: 2024 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Alemania