Near-Null Geomagnetic Field as an Innovative Method of Fruit Storage
The article presents the findings of a study investigating the effects of storing Jonagold apples for six weeks in a condition in which the vertical component of the geomagnetic field has been eliminated (near null GMF) and in control conditions representing those applied in traditional storage (i.e...
Main Authors: | , , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2020-02-01
|
Series: | Processes |
Subjects: | |
Online Access: | https://www.mdpi.com/2227-9717/8/3/262 |
id |
doaj-9e45906997b545ba94493d5f79582381 |
---|---|
record_format |
Article |
spelling |
doaj-9e45906997b545ba94493d5f795823812020-11-25T00:31:47ZengMDPI AGProcesses2227-97172020-02-018326210.3390/pr8030262pr8030262Near-Null Geomagnetic Field as an Innovative Method of Fruit StorageGrzegorz Zaguła0Maria Tarapatskyy1Marcin Bajcar2Bogdan Saletnik3Czesław Puchalski4Andrzej Marczuk5Dariusz Andrejko6Jan Oszmiański7Department of Bioenergetics Food Analysis and Microbiology, Institute of Food Technology and Nutrition, College of Natural Science, Rzeszow University, 5-601 Rzeszow, PolandDepartment of Bioenergetics Food Analysis and Microbiology, Institute of Food Technology and Nutrition, College of Natural Science, Rzeszow University, 5-601 Rzeszow, PolandDepartment of Bioenergetics Food Analysis and Microbiology, Institute of Food Technology and Nutrition, College of Natural Science, Rzeszow University, 5-601 Rzeszow, PolandDepartment of Bioenergetics Food Analysis and Microbiology, Institute of Food Technology and Nutrition, College of Natural Science, Rzeszow University, 5-601 Rzeszow, PolandDepartment of Bioenergetics Food Analysis and Microbiology, Institute of Food Technology and Nutrition, College of Natural Science, Rzeszow University, 5-601 Rzeszow, PolandDepartment of Agricultural, Forest and Transport Machines, Faculty of Production Engineering, University of Life Sciences in Lublin, 20-950 Lublin, PolandDepartment of Biological Fundamentals in Food Technology and Feed, Faculty of Production Engineering, University of Life Sciences in Lublin, 20-950 Lublin, PolandWrocław University of Environmental and Life Sciences, Faculty of Biotechnology and Food Science, Department of Fruit, Vegetable and Plant Nutraceutical Technology, 51-630 Wrocław, PolandThe article presents the findings of a study investigating the effects of storing Jonagold apples for six weeks in a condition in which the vertical component of the geomagnetic field has been eliminated (near null GMF) and in control conditions representing those applied in traditional storage (i.e., in the local geomagnetic field (local GMF)). Analyses of the fruit were performed before the start of and three times during the experiment (i.e., following four, five and six weeks in storage). The contents of simple sugars were measured using the HPLC (high performance liquid chromatography) method; refractometry was applied to identify total extract; thermogravimetry was used to measure the water content, volatile substances and total ash; calorific value and intensity of respiration were examined by measuring CO<sub>2</sub> emissions. Significant differences were found between the apples stored in the experimental and under control conditions, showing an advantage of storage in a condition with the vertical component of the geomagnetic field removed. Statistically significant differences were mainly identified in the speed of starch conversion into simple sugars, as well as the intensity of respiration and the appearance of the two groups of apples. Storage of fruit in a compensated geomagnetic field proved to be an effective method permitting an extended duration of storage without significant deterioration of the physicochemical and organoleptic properties of apples.https://www.mdpi.com/2227-9717/8/3/262geomagnetic fieldcompensationapples storagechemical profilesugars |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Grzegorz Zaguła Maria Tarapatskyy Marcin Bajcar Bogdan Saletnik Czesław Puchalski Andrzej Marczuk Dariusz Andrejko Jan Oszmiański |
spellingShingle |
Grzegorz Zaguła Maria Tarapatskyy Marcin Bajcar Bogdan Saletnik Czesław Puchalski Andrzej Marczuk Dariusz Andrejko Jan Oszmiański Near-Null Geomagnetic Field as an Innovative Method of Fruit Storage Processes geomagnetic field compensation apples storage chemical profile sugars |
author_facet |
Grzegorz Zaguła Maria Tarapatskyy Marcin Bajcar Bogdan Saletnik Czesław Puchalski Andrzej Marczuk Dariusz Andrejko Jan Oszmiański |
author_sort |
Grzegorz Zaguła |
title |
Near-Null Geomagnetic Field as an Innovative Method of Fruit Storage |
title_short |
Near-Null Geomagnetic Field as an Innovative Method of Fruit Storage |
title_full |
Near-Null Geomagnetic Field as an Innovative Method of Fruit Storage |
title_fullStr |
Near-Null Geomagnetic Field as an Innovative Method of Fruit Storage |
title_full_unstemmed |
Near-Null Geomagnetic Field as an Innovative Method of Fruit Storage |
title_sort |
near-null geomagnetic field as an innovative method of fruit storage |
publisher |
MDPI AG |
series |
Processes |
issn |
2227-9717 |
publishDate |
2020-02-01 |
description |
The article presents the findings of a study investigating the effects of storing Jonagold apples for six weeks in a condition in which the vertical component of the geomagnetic field has been eliminated (near null GMF) and in control conditions representing those applied in traditional storage (i.e., in the local geomagnetic field (local GMF)). Analyses of the fruit were performed before the start of and three times during the experiment (i.e., following four, five and six weeks in storage). The contents of simple sugars were measured using the HPLC (high performance liquid chromatography) method; refractometry was applied to identify total extract; thermogravimetry was used to measure the water content, volatile substances and total ash; calorific value and intensity of respiration were examined by measuring CO<sub>2</sub> emissions. Significant differences were found between the apples stored in the experimental and under control conditions, showing an advantage of storage in a condition with the vertical component of the geomagnetic field removed. Statistically significant differences were mainly identified in the speed of starch conversion into simple sugars, as well as the intensity of respiration and the appearance of the two groups of apples. Storage of fruit in a compensated geomagnetic field proved to be an effective method permitting an extended duration of storage without significant deterioration of the physicochemical and organoleptic properties of apples. |
topic |
geomagnetic field compensation apples storage chemical profile sugars |
url |
https://www.mdpi.com/2227-9717/8/3/262 |
work_keys_str_mv |
AT grzegorzzaguła nearnullgeomagneticfieldasaninnovativemethodoffruitstorage AT mariatarapatskyy nearnullgeomagneticfieldasaninnovativemethodoffruitstorage AT marcinbajcar nearnullgeomagneticfieldasaninnovativemethodoffruitstorage AT bogdansaletnik nearnullgeomagneticfieldasaninnovativemethodoffruitstorage AT czesławpuchalski nearnullgeomagneticfieldasaninnovativemethodoffruitstorage AT andrzejmarczuk nearnullgeomagneticfieldasaninnovativemethodoffruitstorage AT dariuszandrejko nearnullgeomagneticfieldasaninnovativemethodoffruitstorage AT janoszmianski nearnullgeomagneticfieldasaninnovativemethodoffruitstorage |
_version_ |
1725322291424788480 |