Improvements in the aqueous extraction of polyphenols from borage ( Borago officinalis L.) leaves by pulsed electric fields: Pulsed electric fields (PEF) applications

Comparison of selected clean and green extraction technologies for biomolecules from apple pomace

“…Recently, a few authors have attempted to recover TPC from various plant materials by following conventional aqueous extraction and shown that TPC can be recovered in substantial quantities in the aqueous medium, although several other reports revealed that alcohol provides a better yield . Previous studies have also shown that nonconventional extraction techniques including UAE and pulsed electric field‐assisted extraction can improve the recovery of TPC in aqueous medium. Among many extraction techniques, moreover, UAE, MAE, UAEE, and HH are referred as "green" as they are often linked to reduced consumption of solvent and energy .…”

Pulsed Electric Field-Assisted Ethanolic Extraction of Date Palm Fruits: Bioactive Compounds, Antioxidant Activity and Physicochemical Properties

“…Many studies have been reported the impact of PEF on chemical composition and quantitative analysis of an extract from different foods [18][19][20]. PEF is an emerging technique and has better results for the extraction of bioactive compounds from onion [21], orange peel [22], grape juices [23] and Borago officinalis leaves [24].Water and ethanol blends are generally used for extraction from plant materials due to high solubility for a wide range of phenolics. The solvent mixtures of water and ethanol are not toxic for humans [4].…”

Effect of emergent non-thermal extraction technologies on bioactive individual compounds profile from different plant materials

“…Fincan (2015) found the highest disintegration index (0.86 ± 0.02) at a PEFE intensity corresponding to 99 pulses of 3 kV cm −1 with a specific energy input of 4102 ± 239 J/kg and the extraction yields produced (total phenolic, antioxidant capacity, and antioxidant activity) were comparable with the heat and microwave treatments. Sarkis et al (2015) concluded that the disintegration index and the polyphenol and protein contents increased with the energy inputs, until 83 kJ/kg was reached, and Segovia et al (2015) concluded that PEFE incremented the total phenolic contents and ORAC values of the extracts between 1.3 and 6.6 times for total phenolic and between 2.0 and 13.7 times for ORAC, compared to the control. Other compounds such as podophyllotoxin were extracted from Podophyllum peltatum also using PEFE that significantly increased the concentration of podophyllotoxin up to 47% (Abdullah, Zhao, Mittal, & Baik, 2012).…”