Quercus suber Bark as a Sustainable Source of Value-Added Compounds: Experimental Studies with Cork By-Products

• Tipo: Artigo em Revista Científica Internacional
• Data: 2023

Autores

Rego, L (Autor) Outra; Mota, S (Autor) Outra; Torres, A (Autor) Outra; Pinto, C (Autor) Outra; Cravo, S (Autor) Outra; Silva, JRE (Autor) Outra; Pascoa, RNMJ (Autor) Outra; Agostinho Almeida (Autor) FFUP; Amaro, F (Autor) Outra; Pinho, PG (Autor) FFUP; Honorina Cidade (Autor) FFUP; Paulo Silva (Autor) FFUP; Lobo, JMS (Autor) Outra; Almeida, IF (Autor) FFUP

Revista

Título: Forests

Nº de Série Art. 303 Vol. 14 Nº 2

Página Final: 543

ISSN: 1999-4907

Editora: MDPI

Indexação

ISI Web of Knowledge - 5 Citações

Scopus - 6 Citações

Outras Informações

ID Authenticus: P-00Y-1MT

DOI: 10.3390/f14030543

Abstract (EN): Quercus suber L. bark (cork) is a sustainable material due to its ability to regenerate. The aim of this work was to explore cork powders, by-products of the cork industry, as sustainable sources of value-added compounds. Two types of cork powder were studied: coarse (P0) and fine (P1). A broad physicochemical characterization was carried out, regarding particle size, color, moisture content, hygroscopicity, pH, heavy metal content, NIR spectra, and volatile compounds. DPPH scavenging activity and total phenolic content were also evaluated for an ethanolic P1 extract. For both powders, Hg, As, Cd and Pb contents were below the acceptable limits and volatile compounds commonly used as fragrances were found in their composition. P1 had a smaller and more homogenous particle size, lighter brownish color, lower pH value, and lower moisture content than P0, and therefore appears to be more suitable for industrial application. P1 ethanolic extract also showed a high scavenging activity and a content of phenolic compounds of 50.46 +/- 0.63 mg (as gallic acid equivalents) per g of extract. In conclusion, P1 cork powder seems to be a promising source of upcycled ingredients, such as fragrances and antioxidants, for the pharmaceutical, nutraceutical, and cosmetic industries.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 15