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Leonel Pereira

Researcher at University of Coimbra

Publications -  154
Citations -  4648

Leonel Pereira is an academic researcher from University of Coimbra. The author has contributed to research in topics: Biology & Chemistry. The author has an hindex of 28, co-authored 120 publications receiving 2877 citations. Previous affiliations of Leonel Pereira include Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa & University of Minho.

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Journal ArticleDOI

Identification of selected seaweed polysaccharides (phycocolloids) by vibrational spectroscopy (FTIR-ATR and FT-Raman)

Leonel Pereira, +4 more
- 01 Oct 2009 - 
TL;DR: With the combination of two spectroscopic techniques it is possible to identify the principal seaweed colloids in ground seaweed samples as in extracted material, and represents, as accurately as possible, the native composition of the phycocolloids.
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Use of FTIR, FT-Raman and 13C-NMR spectroscopy for identification of some seaweed phycocolloids.

Leonel Pereira, +4 more
- 01 Jul 2003 - 
TL;DR: The FTIR and FT-RAMAN spectra of carrageenan and agar, obtained by alkaline extraction from different seaweeds, were recorded in order to identify the type of phycocolloid produced, with special emphasis given to the 500-1500 cm(-1) region, which presents several vibrational modes, sensitive to thetype of polysaccharide and to the types of glycosidic linkage.
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Chemical composition of red, brown and green macroalgae from Buarcos bay in Central West Coast of Portugal

Dina Rodrigues, +8 more
- 15 Sep 2015 - 
TL;DR: Six representative edible seaweeds from the Central West Portuguese Coast, including the less studied Osmundea pinnatifida, were harvested from Buarcos bay, Portugal and their chemical characterization determined, corroborating their good nutritional value.
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Seaweed Phenolics: From Extraction to Applications.

João Cotas, +8 more
- 24 Jul 2020 - 
TL;DR: This review focuses on the extraction, purification, and future applications of seaweedphenolic compounds based on the bioactive properties described in the literature and intends to provide a comprehensive insight into the phenolic compounds in seaweed.
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Analysis by Vibrational Spectroscopy of Seaweed Polysaccharides with Potential Use in Food, Pharmaceutical, and Cosmetic Industries

Leonel Pereira, +2 more
- 12 Mar 2013 - 
TL;DR: The nature of polysaccharides (with extraction and without any type of extraction) present in these seaweeds was determined with FTIR-ATR and FT-Raman analysis of extracted phycocolloids and ground dry seaweed as mentioned in this paper.