Application of NIR Spectroscopy for the Valorisation of Cork By-Products: A Feasibility Study over the Screening and Discrimination of Chemical Compounds of Interest

• Type: Article in International Scientific Journal
• Date: 2024

Authors

Páscoa, RNMJ (Author) Other; Pinto, C (Author) Other; Rego, L (Author) Other; Silva, JRE (Author) Other; Tiritan M.E. (Author) FFUP; Honorina Cidade (Author) FFUP; Almeida, IF (Author) FFUP

Journal

Title: Pharmaceuticals

Vol. 17

Final page: 180

ISSN: 1424-8247

Publisher: MDPI

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 0 Citations

Other information

Authenticus ID: P-010-2A2

DOI: 10.3390/ph17020180

Abstract (EN): Quercus suber is considered a sustainable tree mainly due to its outer layer (cork) capacity to regenerate after each harvesting cycle. Cork bark is explored for several application; however, its industrial transformation generates a significant amount of waste. Recently, cork by-products have been studied as a supplier of bioactive ingredients. This work aimed to explore whether near infrared spectroscopy (NIRS), a non-destructive analysis, can be employed as a screening device for selecting cork by-products with higher potential for bioactives extraction. A total of 29 samples of cork extracts were analysed regarding their qualitative composition. Partial least squares (PLS) models were developed for quantification purposes, and R2P and RER values of 0.65 and above 4, respectively, were obtained. Discrimination models, performed through PLS-DA, yielded around 80% correct predictions, revealing that four out of five of samples were correctly discriminated, thus revealing that NIR can be successfully applied for screening purposes.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 13