In situ Raman monitoring of dielectric-heating-enhanced freeze-drying under different electromagnetic wave frequencies

We studied the effect of dielectric heating on the enhancement of freeze-drying by electromagnetic waves (EMWs) under different frequencies: 2.45 GHz microwaves (MWs), and 27 and 200 MHz radio frequencies (RFs). The irradiation with RFs, particularly at 27 MHz, reduced the duration of freeze-drying...

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Detalles Bibliográficos
Autores principales: Tsubaki, S., Matsuzawa, T., Fujii, S., Suzuki, E., Kanamori, H., Hoshino, T., Hosoda, S., Wada, Y.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2019
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9062093/
https://www.ncbi.nlm.nih.gov/pubmed/35517651
http://dx.doi.org/10.1039/c9ra00981g
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author Tsubaki, S.
Matsuzawa, T.
Fujii, S.
Suzuki, E.
Kanamori, H.
Hoshino, T.
Hosoda, S.
Wada, Y.
author_facet Tsubaki, S.
Matsuzawa, T.
Fujii, S.
Suzuki, E.
Kanamori, H.
Hoshino, T.
Hosoda, S.
Wada, Y.
author_sort Tsubaki, S.
collection PubMed
description We studied the effect of dielectric heating on the enhancement of freeze-drying by electromagnetic waves (EMWs) under different frequencies: 2.45 GHz microwaves (MWs), and 27 and 200 MHz radio frequencies (RFs). The irradiation with RFs, particularly at 27 MHz, reduced the duration of freeze-drying by 67%. We further analysed the water structure by in situ Raman spectroscopy during freeze-drying under EMWs. The phase transition from ice to water occurred soon after starting irradiation by MWs at 2.45 GHz, while the ice phase was almost maintained at an RF of 27 MHz.
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spelling pubmed-90620932022-05-04 In situ Raman monitoring of dielectric-heating-enhanced freeze-drying under different electromagnetic wave frequencies Tsubaki, S. Matsuzawa, T. Fujii, S. Suzuki, E. Kanamori, H. Hoshino, T. Hosoda, S. Wada, Y. RSC Adv Chemistry We studied the effect of dielectric heating on the enhancement of freeze-drying by electromagnetic waves (EMWs) under different frequencies: 2.45 GHz microwaves (MWs), and 27 and 200 MHz radio frequencies (RFs). The irradiation with RFs, particularly at 27 MHz, reduced the duration of freeze-drying by 67%. We further analysed the water structure by in situ Raman spectroscopy during freeze-drying under EMWs. The phase transition from ice to water occurred soon after starting irradiation by MWs at 2.45 GHz, while the ice phase was almost maintained at an RF of 27 MHz. The Royal Society of Chemistry 2019-03-19 /pmc/articles/PMC9062093/ /pubmed/35517651 http://dx.doi.org/10.1039/c9ra00981g Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Tsubaki, S.
Matsuzawa, T.
Fujii, S.
Suzuki, E.
Kanamori, H.
Hoshino, T.
Hosoda, S.
Wada, Y.
In situ Raman monitoring of dielectric-heating-enhanced freeze-drying under different electromagnetic wave frequencies
title In situ Raman monitoring of dielectric-heating-enhanced freeze-drying under different electromagnetic wave frequencies
title_full In situ Raman monitoring of dielectric-heating-enhanced freeze-drying under different electromagnetic wave frequencies
title_fullStr In situ Raman monitoring of dielectric-heating-enhanced freeze-drying under different electromagnetic wave frequencies
title_full_unstemmed In situ Raman monitoring of dielectric-heating-enhanced freeze-drying under different electromagnetic wave frequencies
title_short In situ Raman monitoring of dielectric-heating-enhanced freeze-drying under different electromagnetic wave frequencies
title_sort in situ raman monitoring of dielectric-heating-enhanced freeze-drying under different electromagnetic wave frequencies
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9062093/
https://www.ncbi.nlm.nih.gov/pubmed/35517651
http://dx.doi.org/10.1039/c9ra00981g
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