@misc{10481/93904,
year = {2024},
month = {7},
url = {https://hdl.handle.net/10481/93904},
abstract = {The orange peels (OP) derived from orange juice factories consist of several polymers and molecules that could
be recovered using a biorefinery approach. This study presents a pilot-scale strategy for the extraction and recovery
of phenolic compounds from OP, aiming to demonstrate a sustainable, non-thermal process that operates
without the use of solvents and complies with food-grade standards. The extraction process was conducted in a
food-grade manner on a 1000 L scale, starting with the enzymatic hydrolysis of pectin in the biomass, followed
by ultrasound-assisted extraction (UAE) at 54 W/gslurry and 20 ◦C. Solid/liquid separation via decanter centrifuge
allowed to recover the solution containing the phenolic compounds, that was further purified via sequential
cross-flow microfiltration (MF), ultrafiltration (UF) and nanofiltration (NF). The final product was analysed by
HPLC-ESI-TOF-MS, revealing an interesting phenolic profile with several potential bioactivities and a total
polyphenol content (TPC) of 3.3 g/L. The food-grade analysis confirmed the potential application of the final
product in food-related processes, such as food packaging or fortification. This work highlights a scalable and
environmentally friendly method to convert agro-food waste into valuable bioactive compounds, aligning with
green chemistry principles and zero-waste strategies.},
organization = {Bio Base Europe Pilot Plant (Ghent,
Belgium)},
organization = {University of Granada (Granada, Spain) as part of the
SHEALTHY project},
organization = {European Union’s
Horizon 2020 research and innovation program under grant agreement
No 817936},
publisher = {Elsevier},
keywords = {Orange peels},
keywords = {Phenolic compounds},
keywords = {Downstream processing},
title = {Food grade pilot scale strategy for non-thermal extraction and recovery of phenolic compounds from orange peels},
doi = {10.1016/j.lwt.2024.116538},
author = {Niglio, Saverio and Razola-Díaz, María del Carmen and Waegeman, Hendrik and Verardo, Vito},
}