Comparative Study of Pulsed Electric Field and Thermal Processing of Apple Juice with Particular Consideration of Juice Quality and Enzyme Deactivation

2008 ◽  
Vol 56 (12) ◽  
pp. 4545-4554 ◽  
Author(s):  
Susanne Schilling ◽  
Sandra Schmid ◽  
Henry Jäger ◽  
Michael Ludwig ◽  
Helmut Dietrich ◽  
...  
Keyword(s):  
Electric Field ◽  
Comparative Study ◽  
Thermal Processing ◽  
Apple Juice ◽  
Pulsed Electric Field ◽  
Juice Quality ◽  
Enzyme Deactivation

scholarly journals Quality stability and sensory attributes of apple juice processed by thermosonication, pulsed electric field and thermal processing

2016 ◽  
Vol 23 (3) ◽  
pp. 265-276 ◽  
Author(s):  
Alifdalino Sulaiman ◽  
Mohammed Farid ◽  
Filipa VM Silva
Keyword(s):  
Antioxidant Activity ◽  
Electric Field ◽  
Sensory Analysis ◽  
Thermal Processing ◽  
Apple Juice ◽  
Treatment Time ◽  
Pulsed Electric Field ◽  
Color Difference ◽  
Soluble Solids ◽  
Total Color Difference

Worldwide, apple juice is the second most popular juice, after orange juice. It is susceptible to enzymatic browning spoilage by polyphenoloxidase, an endogenous enzyme. In this study, Royal Gala apple juice was treated by thermosonication (TS: 1.3 W/mL, 58 ℃, 10 min), pulsed electric field (PEF: 24.8 kV/cm, 60 pulses, 169 µs treatment time, 53.8 ℃) and heat (75 ℃, 20 min) and stored at 3.0 ℃ and 20.0 ℃ for 30 days. A sensory analysis was carried out after processing. The polyphenoloxidase activity, antioxidant activity and total color difference of the apple juice were determined before and after processing and during storage. The sensory analysis revealed that thermosonication and pulsed electric field juices tasted differently from the thermally treated juice. Apart from the pulsed electric field apple juice stored at room temperature, the processed juice was stable during storage, since the pH and soluble solids remained constant and fermentation was not observed. Polyphenoloxidase did not reactivate during storage. Along storage, the juices’ antioxidant activity decreased and total color difference increased (up to 6.8). While the antioxidant activity increased from 86 to 103% with thermosonication and was retained after pulsed electric field, thermal processing reduced it to 67%. The processing increased the total color difference slightly. No differences in the total color difference of the juices processed by the three methods were registered after storage. Thermosonication and pulsed electric field could possibly be a better alternative to thermal preservation of apple juice, but refrigerated storage is recommended for pulsed electric field apple juice.

Inactivation of E. coli K12 in apple juice by high voltage pulsed electric field

2003 ◽  
Vol 217 (5) ◽  
pp. 434-437 ◽  
Author(s):  
B. Sen Gupta ◽  
F. Masterson ◽  
T. R. A. Magee
Keyword(s):  
Electric Field ◽  
High Voltage ◽  
Apple Juice ◽  
Pulsed Electric Field ◽  
E Coli

A Comparative Study on the Effects of Millisecond- and Microsecond-Pulsed Electric Field Treatments on the Permeabilization and Extraction of Pigments from Chlorella vulgaris

2015 ◽  
Vol 248 (5) ◽  
pp. 883-891 ◽  
Author(s):  
Elisa Luengo ◽  
Juan Manuel Martínez ◽  
Mathilde Coustets ◽  
Ignacio Álvarez ◽  
Justin Teissié ◽  
...  
Keyword(s):  
Electric Field ◽  
Comparative Study ◽  
Chlorella Vulgaris ◽  
Pulsed Electric Field

Ultraviolet and Pulsed Electric Field Treatments Have Additive Effect on Inactivation ofE. coliin Apple Juice

2008 ◽  
Vol 73 (9) ◽  
pp. M412-M417 ◽  
Author(s):  
T.K. Gachovska ◽  
S. Kumar ◽  
H. Thippareddi ◽  
J. Subbiah ◽  
F. Williams
Keyword(s):  
Electric Field ◽  
Apple Juice ◽  
Pulsed Electric Field ◽  
Additive Effect

scholarly journals Effect of pulsed electric field treatment on shelf life and nutritional value of apple juice

2019 ◽  
Vol 56 (3) ◽  
pp. 1184-1191 ◽  
Author(s):  
Kinga Dziadek ◽  
Aneta Kopeć ◽  
Tomasz Dróżdż ◽  
Paweł Kiełbasa ◽  
Marek Ostafin ◽  
...  
Keyword(s):  
Electric Field ◽  
Shelf Life ◽  
Nutritional Value ◽  
Apple Juice ◽  
Pulsed Electric Field ◽  
Pulsed Electric Field Treatment ◽  
Electric Field Treatment
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