The Impact of Pulsed Electric Field Treatment of Beetroots on the Physicochemical Properties of Juice, Dried Juice, and Dried Pomace

The aim of this work was to determine the impact of pulsed electric field treatment of beetroots on select physicochemical properties of the obtained juice, spray-dried juice, and freeze-dried pomace. Pulsed electric field pretreatment of beetroots was conducted with a different number of pulses (3...

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Main Authors: Aleksandra Jedlińska, Alicja Barańska-Dołomisiewicz, Katarzyna Samborska, Katarzyna Rybak, Artur Wiktor, Dorota Witrowa-Rajchert, Małgorzata Nowacka
Format: Article
Language:English
Published: MDPI AG 2025-03-01
Series:Applied Sciences
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Online Access:https://www.mdpi.com/2076-3417/15/7/3834
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author Aleksandra Jedlińska
Alicja Barańska-Dołomisiewicz
Katarzyna Samborska
Katarzyna Rybak
Artur Wiktor
Dorota Witrowa-Rajchert
Małgorzata Nowacka
author_facet Aleksandra Jedlińska
Alicja Barańska-Dołomisiewicz
Katarzyna Samborska
Katarzyna Rybak
Artur Wiktor
Dorota Witrowa-Rajchert
Małgorzata Nowacka
author_sort Aleksandra Jedlińska
collection DOAJ
description The aim of this work was to determine the impact of pulsed electric field treatment of beetroots on select physicochemical properties of the obtained juice, spray-dried juice, and freeze-dried pomace. Pulsed electric field pretreatment of beetroots was conducted with a different number of pulses (3 or 44 pulses) at a constant electric field strength of E = 1.07 kV/cm, which resulted in the total energy levels of 0.5 and 4 kJ/kg. The juice was dehumidified and air spray-dried with NUTRIOSE<sup>®</sup> as a drying carrier at 90/60 °C, while pomace was freeze-dried at 0.63 Pa and a shelf temperature of 20 °C. Pulsed electric field (PEF) treatment caused an increase in pigment content in beetroots and the juice. In the case of powders, the following effects were noted: a decrease in drying efficiency, changed powder color, decreased powder particle diameter. Dried juice and pomace treated with a higher pulsed electric field (PEF) treatment were characterized by the highest hygroscopicity.
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publishDate 2025-03-01
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spelling doaj-art-708ada3ac5a346d0adeadf8a3e7b6c6f2025-08-20T02:15:55ZengMDPI AGApplied Sciences2076-34172025-03-01157383410.3390/app15073834The Impact of Pulsed Electric Field Treatment of Beetroots on the Physicochemical Properties of Juice, Dried Juice, and Dried PomaceAleksandra Jedlińska0Alicja Barańska-Dołomisiewicz1Katarzyna Samborska2Katarzyna Rybak3Artur Wiktor4Dorota Witrowa-Rajchert5Małgorzata Nowacka6Department of Food Engineering and Process Management, Institute of Food Sciences, Warsaw University of Life Sciences (WULS-SGGW), 02-776 Warsaw, PolandDepartment of Food Engineering and Process Management, Institute of Food Sciences, Warsaw University of Life Sciences (WULS-SGGW), 02-776 Warsaw, PolandDepartment of Food Engineering and Process Management, Institute of Food Sciences, Warsaw University of Life Sciences (WULS-SGGW), 02-776 Warsaw, PolandDepartment of Food Engineering and Process Management, Institute of Food Sciences, Warsaw University of Life Sciences (WULS-SGGW), 02-776 Warsaw, PolandDepartment of Food Engineering and Process Management, Institute of Food Sciences, Warsaw University of Life Sciences (WULS-SGGW), 02-776 Warsaw, PolandDepartment of Food Engineering and Process Management, Institute of Food Sciences, Warsaw University of Life Sciences (WULS-SGGW), 02-776 Warsaw, PolandDepartment of Food Engineering and Process Management, Institute of Food Sciences, Warsaw University of Life Sciences (WULS-SGGW), 02-776 Warsaw, PolandThe aim of this work was to determine the impact of pulsed electric field treatment of beetroots on select physicochemical properties of the obtained juice, spray-dried juice, and freeze-dried pomace. Pulsed electric field pretreatment of beetroots was conducted with a different number of pulses (3 or 44 pulses) at a constant electric field strength of E = 1.07 kV/cm, which resulted in the total energy levels of 0.5 and 4 kJ/kg. The juice was dehumidified and air spray-dried with NUTRIOSE<sup>®</sup> as a drying carrier at 90/60 °C, while pomace was freeze-dried at 0.63 Pa and a shelf temperature of 20 °C. Pulsed electric field (PEF) treatment caused an increase in pigment content in beetroots and the juice. In the case of powders, the following effects were noted: a decrease in drying efficiency, changed powder color, decreased powder particle diameter. Dried juice and pomace treated with a higher pulsed electric field (PEF) treatment were characterized by the highest hygroscopicity.https://www.mdpi.com/2076-3417/15/7/3834pulsed electric field (PEF)beetrootsdehumidified air spray dryingpowdersfreeze drying
spellingShingle Aleksandra Jedlińska
Alicja Barańska-Dołomisiewicz
Katarzyna Samborska
Katarzyna Rybak
Artur Wiktor
Dorota Witrowa-Rajchert
Małgorzata Nowacka
The Impact of Pulsed Electric Field Treatment of Beetroots on the Physicochemical Properties of Juice, Dried Juice, and Dried Pomace
Applied Sciences
pulsed electric field (PEF)
beetroots
dehumidified air spray drying
powders
freeze drying
title The Impact of Pulsed Electric Field Treatment of Beetroots on the Physicochemical Properties of Juice, Dried Juice, and Dried Pomace
title_full The Impact of Pulsed Electric Field Treatment of Beetroots on the Physicochemical Properties of Juice, Dried Juice, and Dried Pomace
title_fullStr The Impact of Pulsed Electric Field Treatment of Beetroots on the Physicochemical Properties of Juice, Dried Juice, and Dried Pomace
title_full_unstemmed The Impact of Pulsed Electric Field Treatment of Beetroots on the Physicochemical Properties of Juice, Dried Juice, and Dried Pomace
title_short The Impact of Pulsed Electric Field Treatment of Beetroots on the Physicochemical Properties of Juice, Dried Juice, and Dried Pomace
title_sort impact of pulsed electric field treatment of beetroots on the physicochemical properties of juice dried juice and dried pomace
topic pulsed electric field (PEF)
beetroots
dehumidified air spray drying
powders
freeze drying
url https://www.mdpi.com/2076-3417/15/7/3834
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