Author(s)

Tiphane Andrade Figueira^1*, Antonio Jorge Ribeiro da Silva², Alex Enrich-Prast³, Yocie Yoneshigue-Valentin⁴, Vinícius Peruzzi de Oliveira¹

¹Multiuser Unit of Environmental Analysis, Institute of Biology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
²Institute for Research on Natural Products, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
³Department of Thematic Studies—Environmental Change, Link?ping University, Link?ping, Sweden.
⁴Marine Macroalgae Laboratory, Department of Botany, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.

Ulvan is a sulfated heteropolysaccharide present in the cell wall of Ulva species with unique structural properties and technological potential. Here we characterized by FTIR and NMR analysis the structure of ulvan from Ulva fasciata collected in natural environment (SEA) and after in vitro biomass cultivation in nutrient enriched water (CULT). FTIR spectrum of CULT ulvan presented stronger signals of sulfate groups than SEA. ¹H and ¹³C NMR showed that both ulvan are composed mainly of ulvanobiuronic acid 3-sulfate type A and type B. SEA ulvan presented signals characteristics of xylose, suggesting the presence of ulvanobiose in its structure, while CULT presented most signals of type A disaccharide. The cultivation of Ulva could be an alternative to suffice the emerging demand for ulvan meeting requirements of quality and quantity.

Sulfated Polysaccharide, Aquaculture, FTIR Analysis, NMR Analysis, Biotechnology

Figueira, T. , da Silva, A. , Enrich-Prast, A. , Yoneshigue-Valentin, Y. and de Oliveira, V. (2020) Structural Characterization of Ulvan Polysaccharide from Cultivated and Collected Ulva fasciata (Chlorophyta). Advances in Bioscience and Biotechnology, 11, 206-216. doi: 10.4236/abb.2020.115016.