| Title |
Exploring hydrodynamic cavitation for citrus waste valorisation in Malta: from beverage enhancement to potato sprouting suppression and water remediation |
| ID_Doc |
9898 |
| Authors |
Psakis, G; Lia, F; Valdramidis, VP; Gatt, R |
| Title |
Exploring hydrodynamic cavitation for citrus waste valorisation in Malta: from beverage enhancement to potato sprouting suppression and water remediation |
| Year |
2024 |
| Published |
|
| DOI |
10.3389/fchem.2024.1411727 |
| Abstract |
Introduction: The endorsement of circular economy, zero-waste, and sustainable development by the EU and UN has promoted non-thermal technologies in agro-food and health industries. While northern European countries rapidly integrate these technologies, their implementation in Mediterranean food-supply chains remains uncertain.Aims: We evaluated the usefulness of hydrodynamic cavitation (HC) for valorizing orange peel waste in the fresh orange juice supply chain of the Maltese Islands.Method: We assessed: a) the effectiveness of HC in extracting bioactive compounds from orange peels (Citrus sinensis) in water (35 degrees C) and 70% (v/v) ethanol (-10 degrees C) over time, compared to conventional maceration, and b) the potato sprouting-suppression and biosorbent potential of the processed peel for copper, nitrate, and nitrite binding.Results: Prolonged HC-assisted extractions in water (high cavitation numbers), damaged and/or oxidized bioactive compounds, with flavonoids and ascorbic acid being more sensitive, whereas cold ethanolic extractions preserved the compounds involved in radical scavenging. HC-processing adequately modified the peel, enabling its use as a potato suppressant and biosorbent for copper, nitrate, and nitrite.Conclusion: Coupling HC-assisted bioactive compound extractions with using leftover peel for potato-sprouting prevention and as biosorbent for water pollutant removal offers a straightforward approach to promoting circular economic practices and sustainable agriculture in Malta. |
| Author Keywords |
hydrodynamic cavitation; citrus waste; green solvents; potato sprouting; water remediation; nitrates; nitrites; heavy metals |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:001241281800001 |
| WoS Category |
Chemistry, Multidisciplinary |
| Research Area |
Chemistry |
| PDF |
https://www.frontiersin.org/articles/10.3389/fchem.2024.1411727/pdf?isPublishedV2=False
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