The Chemistry Behind Biological Properties of Agro-industrial Portuguese By-Products

As the global population grows, food production and processing generate significant by-products that cause environmental issues. These by-products contain bioactive compounds, including phenolic compounds, which have beneficial biological properties. Extracting these compounds and incorporating them...

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Bibliographic Details
Published in:Waste and biomass valorization 2024-05, Vol.15 (5), p.2721-2733
Main Authors: Ferreira, Sara M., Gomes, Sandra M., Santos, Lúcia
Format: Article
Language:English
Subjects:
Amylases
Antioxidants
Bioactive compounds
Biological properties
By products
Byproducts
Catechin
Chemical composition
Circular economy
Engineering
Environment
Environmental Engineering/Biotechnology
Enzymes
Food production
Industrial Pollution Prevention
Liquid chromatography
Onions
Original Paper
Passion fruit
Phenolic compounds
Phenols
Plant extracts
Renewable and Green Energy
Seeds
Waste Management/Waste Technology
α-Amylase
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Summary:As the global population grows, food production and processing generate significant by-products that cause environmental issues. These by-products contain bioactive compounds, including phenolic compounds, which have beneficial biological properties. Extracting these compounds and incorporating them into various products, can promote circular economy. This study examined the correlation between the chemical composition and biological properties of phenolic-rich extracts from chestnut shells, grape seeds, onion peels, and passion fruit peels. Using HPLC–DAD, the primary compounds were identified and quantified. The study analysed their antioxidant, and antibacterial properties, sun protection factor, and α-amylase inhibitory capacity. Catechin was found in all four extracts, with the grapeseed extract having higher levels. Chestnut shell extract revealed the best antioxidant properties, with a total phenolic content of 497.5 mg GAE /g. On the other hand, onion peel extract exhibited the best antibacterial capacity, as well as the highest sun protection factor value (4.8). Concerning the ability to inhibit the α-amylase enzyme, all the extracts displayed the ability to inhibit more than 70% of this enzyme. Overall, the presented extracts had varying phenolic compositions and biological properties. It is crucial to evaluate the chemical composition of extracts to comprehend their biochemical properties and define their potential applications. Graphical Abstract
ISSN:1877-2641
1877-265X
DOI:10.1007/s12649-023-02366-3