0000000000792211
AUTHOR
Martina Migliore
The New Life Of Exhausted Bentonite From The Grape Processing Industry: From Waste To Precious Resource To Produce Novel Raw Materials Enriched In Polyphenols
Introduction: In an ever-growing perspective of circular economy, the development of conscious, sustainable and environmental-friendly strategies to recycle the waste products is the key point1. The exhausted bentonite, from the grape processing industries, could become a precious matrix to produce new pharmaceutical/cosmetic excipients enriched in functional polyphenols2. Materials & Methods: The exhausted bentonite recovered after the fining process (supplied by Bono&Ditta s.p.a., Campobello di Mazara TP, Italy) was stored at -20°C. Solid-liquid extractions on both freeze-dried and as-collected (wet) bentonite were carried out by using PEG200 or propylene glycol as solvents. The l…
Green Extraction of Polyphenols from Waste Bentonite to Produce Functional Antioxidant Excipients for Cosmetic and Pharmaceutical Purposes: A Waste-to-Market Approach
In an ever-growing perspective of circular economy, the development of conscious, sustainable and environmental-friendly strategies to recycle the waste products is the key point. The scope of this work was to validate the waste bentonite from the grape processing industries as a precious matrix to extract polyphenols by applying a waste-to-market approach aimed at producing novel functional excipients. The waste bentonite was recovered after the fining process and opportunely pre-treated. Subsequently, both the freeze dried and the so-called “wet” bentonites were subjected to maceration. PEG200 and Propylene Glycol were selected as solvents due to their ability to dissolve poly…