Effects of Pulsed Electric Fields on Antioxidant Activity and Microbial Activity in Orange Juice

2018 ◽  
Author(s):  
Tomasz Dróżdż ◽  
Paweł Kiełbasa ◽  
Agnieszka Nawirska-Olszańska ◽  
Kinga Dziadek ◽  
Ewelina Kukiełka ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Cell Membrane ◽  
Electric Fields ◽  
Orange Juice ◽  
High Intensity ◽  
Low Temperatures ◽  
Pulsed Electric Fields ◽  
Food Samples ◽  
Polyphenolic Compounds ◽  
Study Results

The present study was conducted on the Ertec SU-1 sterilizer, a device designed to test sterilization processes of food samples using pulsed electric fields (PEF) of high intensity and for rapid sterilization of biological samples at low temperatures. The operation of the sterilizer is based on electro-perforation of the cell membrane. The aim of the paper is to show that the PEF method increases the concentration of polyphenolic compounds and decreases the antioxidant activity. Orange juice was used as a material to eliminate growth of microorganisms contained in it. The microorganisms were exposed to pulsed electric fields. The study results proved that a certain number of PEF pulses definitively eliminated microorganisms in the examined material.

Impact of High Pressure and Pulsed Electric Fields on Bioactive Compounds and Antioxidant Activity of Orange Juice in Comparison with Traditional Thermal Processing

2005 ◽  
Vol 53 (11) ◽  
pp. 4403-4409 ◽  
Author(s):  
Concepción Sánchez-Moreno ◽  
Lucía Plaza ◽  
Pedro Elez-Martínez ◽  
Begoña De Ancos ◽  
Olga Martín-Belloso ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
High Pressure ◽  
Electric Fields ◽  
Bioactive Compounds ◽  
Thermal Processing ◽  
Orange Juice ◽  
Pulsed Electric Fields

Effect of refrigerated storage on vitamin C and antioxidant activity of orange juice processed by high-pressure or pulsed electric fields with regard to low pasteurization

2006 ◽  
Vol 223 (4) ◽  
pp. 487-493 ◽  
Author(s):  
Lucía Plaza ◽  
Concepción Sánchez-Moreno ◽  
Pedro Elez-Martínez ◽  
Begoña de Ancos ◽  
Olga Martín-Belloso ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
High Pressure ◽  
Vitamin C ◽  
Electric Fields ◽  
Orange Juice ◽  
Pulsed Electric Fields ◽  
Refrigerated Storage

Inactivation of Lactobacillus brevis in orange juice by high-intensity pulsed electric fields

2005 ◽  
Vol 22 (4) ◽  
pp. 311-319 ◽  
Author(s):  
Pedro Elez-Martínez ◽  
Joan Escolà-Hernández ◽  
Robert C. Soliva-Fortuny ◽  
Olga Martín-Belloso
Keyword(s):  
Electric Fields ◽  
Orange Juice ◽  
High Intensity ◽  
Pulsed Electric Fields ◽  
Lactobacillus Brevis
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