scholarly journals Effect of pulsed electric field treatment on polyphenol oxidase, total phenolic compounds, and microbial growth of apple juice

2013 ◽  
Vol 37 ◽  
pp. 772-780 ◽  
Author(s):  
Mustafa Fatih ERTUGAY ◽  
Mehmet BAŞLAR ◽  
Fatih ORTAKCI
2019 ◽  
Vol 56 (3) ◽  
pp. 1184-1191 ◽  
Author(s):  
Kinga Dziadek ◽  
Aneta Kopeć ◽  
Tomasz Dróżdż ◽  
Paweł Kiełbasa ◽  
Marek Ostafin ◽  
...  

2009 ◽  
Vol 26 (5) ◽  
pp. 491-496 ◽  
Author(s):  
Pilar Martínez Viedma ◽  
Hikmate Abriouel ◽  
Angel Sobrino López ◽  
Nabil Ben Omar ◽  
Rosario Lucas López ◽  
...  

2020 ◽  
pp. 186-195
Author(s):  
Shohreh Arab Shirazi ◽  
Ahmad Pedram Nia ◽  
Mohammad Reza Saeidi Asl ◽  
Fariba Naghipour ◽  
Hamid Tavakolipour

Introduction. More attention has been paid in recent decades to extracts and essential oils from various plants as natural antioxidant sources due to their positive effects on food oxidation reactions. Our study aimed to compare the antioxidant activity of aqueous and alcoholic extracts from Salvia leriifolia L. and Linum usitalissmum L.The extracts were subjected to a pulsed electric field with intensities of zero (without pretreatment), 3 and 6 kV·cm–1, and a constant pulse number of 30. For this purpose, parameters such as total phenolic compounds and antioxidant activity were investigated by DPPH and TEAC methods. Results and discussion. Our results showed that a higher intensity of a pulsed electric field pretreatment and the use of an alcoholic solvent significantly raised total phenolic compounds in the extracts and their antioxidant activity at a 95% confidence level. We found significant effects of the plant source (Linum usitalissmum and Salvia leriifolia), pretreatment (pulse electric field at intensities of 0.3 and 6 kV·cm–1), and a solvent (aqueous and alcohol) on the extracts’ antioxidant activity (P < 0.05). In addition, there was a significant correlation between the results of the DPPH and the TEAC antioxidant activities (P < 0.01 and r = 0.932). Conclusion. The total antioxidant activity (based on both TEAC and DPPH methods) and total phenolic compounds extracted from Salvia leriifolia were higher than those from Linum usitalissmum (P < 0.05). Based on the results, the extract obtained from Salvia leriifolia with an alcoholic solvent and a pulsed electric field pretreatment (at 6 kV·cm–1 and 30 pulses) was selected as possessing desired antioxidant properties.


2011 ◽  
Vol 92 (4) ◽  
pp. 743-750 ◽  
Author(s):  
Yuanyuan Zhang ◽  
Yaxi Hou ◽  
Yan Zhang ◽  
Jie Chen ◽  
Fang Chen ◽  
...  

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Chao Cen ◽  
Xinhua Chen

Pulsed electric field treatment is now widely used in diverse biological and medical applications: gene delivery, electrochemotherapy, and cancer therapy. This minimally invasive technique has several advantages over traditional ablation techniques, such as nonthermal elimination and blood vessel spare effect. Different electrodes are subsequently developed for a specific treatment purpose. Here, we provide a systematic review of electrode modality development in pulsed electric field treatment. For electrodes invented for experiment in vitro, sheet electrode and electrode cuvette, electrodes with high-speed fluorescence imaging system, electrodes with patch-clamp, and electrodes with confocal laser scanning microscopy are introduced. For electrodes invented for experiment in vivo, monopolar electrodes, five-needle array electrodes, single-needle bipolar electrode, parallel plate electrodes, and suction electrode are introduced. The pulsed electric field provides a promising treatment for cancer.


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