Intermittent Microwave-Vacuum Drying Effects on Pears

In the present study, the effects of intermittent microwave-vacuum drying on the “Deveci” pear in terms of the drying kinetics, mineral content, protein content, rehydration ratio, color, energy, specific energy and microstructure were investigated. According to the drying treatments, increased micr...

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Main Authors: Onur Taskin, Ahmet Polat, Nazmi Izli, Baris Bulent Asik
Format: Article
Language:English
Published: Institute of Animal Reproduction and Food Research of the Polish Academy of Sciences 2019-02-01
Series:Polish Journal of Food and Nutrition Sciences
Subjects:
Online Access:http://www.journalssystem.com/pjfns/,101682,0,2.html
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author Onur Taskin
Ahmet Polat
Nazmi Izli
Baris Bulent Asik
author_facet Onur Taskin
Ahmet Polat
Nazmi Izli
Baris Bulent Asik
author_sort Onur Taskin
collection DOAJ
description In the present study, the effects of intermittent microwave-vacuum drying on the “Deveci” pear in terms of the drying kinetics, mineral content, protein content, rehydration ratio, color, energy, specific energy and microstructure were investigated. According to the drying treatments, increased microwave power (100 and 200 W) and vacuum (200 and 400 mmHg) applications provided higher drying rates and protein content. Dried pear samples had a higher mineral content than fresh samples because of the increasing dry matter content. At the higher vacuum level experiments, the energy consumption reduced and the rehydration ratio increased. Moreover, the higher microwave power caused a decrease of the L* (lightness) value. However, a regular pore size and pore distribution in all drying experiments were observed in the microstructures of microwave-vacuum-dried samples.
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spelling doaj.art-20b9bf4442b1445db6e354712eaf32a22025-02-03T00:47:42ZengInstitute of Animal Reproduction and Food Research of the Polish Academy of SciencesPolish Journal of Food and Nutrition Sciences2083-60072019-02-0169110110810.31883/pjfns-2019-0010101682Intermittent Microwave-Vacuum Drying Effects on PearsOnur Taskin0Ahmet Polat1Nazmi Izli2Baris Bulent Asik3Department of Biosystems Engineering, Faculty of Agriculture, Bursa Uludag University, Gorukle Campus, 16059, Bursa, TurkeyDepartment of Biosystems Engineering, Faculty of Agriculture, Bursa Uludag University, Gorukle Campus, 16059, Bursa, TurkeyDepartment of Biosystems Engineering, Faculty of Agriculture, Bursa Uludag University, Gorukle Campus, 16059, Bursa, TurkeyDepartment of Soil Science and Plant Nutrition, Faculty of Agriculture, Bursa Uludag University, Gorukle Campus, 16059, Bursa, TurkeyIn the present study, the effects of intermittent microwave-vacuum drying on the “Deveci” pear in terms of the drying kinetics, mineral content, protein content, rehydration ratio, color, energy, specific energy and microstructure were investigated. According to the drying treatments, increased microwave power (100 and 200 W) and vacuum (200 and 400 mmHg) applications provided higher drying rates and protein content. Dried pear samples had a higher mineral content than fresh samples because of the increasing dry matter content. At the higher vacuum level experiments, the energy consumption reduced and the rehydration ratio increased. Moreover, the higher microwave power caused a decrease of the L* (lightness) value. However, a regular pore size and pore distribution in all drying experiments were observed in the microstructures of microwave-vacuum-dried samples.http://www.journalssystem.com/pjfns/,101682,0,2.htmlmicrowave-vacuum dryingmineral contentproteinrehydration ratiocolorscanning electron microscopy
spellingShingle Onur Taskin
Ahmet Polat
Nazmi Izli
Baris Bulent Asik
Intermittent Microwave-Vacuum Drying Effects on Pears
Polish Journal of Food and Nutrition Sciences
microwave-vacuum drying
mineral content
protein
rehydration ratio
color
scanning electron microscopy
title Intermittent Microwave-Vacuum Drying Effects on Pears
title_full Intermittent Microwave-Vacuum Drying Effects on Pears
title_fullStr Intermittent Microwave-Vacuum Drying Effects on Pears
title_full_unstemmed Intermittent Microwave-Vacuum Drying Effects on Pears
title_short Intermittent Microwave-Vacuum Drying Effects on Pears
title_sort intermittent microwave vacuum drying effects on pears
topic microwave-vacuum drying
mineral content
protein
rehydration ratio
color
scanning electron microscopy
url http://www.journalssystem.com/pjfns/,101682,0,2.html
work_keys_str_mv AT onurtaskin intermittentmicrowavevacuumdryingeffectsonpears
AT ahmetpolat intermittentmicrowavevacuumdryingeffectsonpears
AT nazmiizli intermittentmicrowavevacuumdryingeffectsonpears
AT barisbulentasik intermittentmicrowavevacuumdryingeffectsonpears