In this study the extraction of antioxidants from industrial potato
peel waste is optimised with regards to ethanol concentration,
temperature and time using both solid–liquid extraction and PLE.
For PLE ethanol concentration and temperatures were varied. Both
techniques were optimised by Response Surface Methodology. In
addition to antioxidant activity, phenol level and the level of caffeicacid, the level of glycoalkaloids was taken into consideration. The
ethanolic extractions were compared with conventional
extractions.