Cargando…
Effects of Winter Flounder Antifreeze Protein on the Growth of Ice Particles in an Ice Slurry Flow in Mini-Channels
The control of ice growth in ice slurry is important for many fields, including (a) the cooling of the brain during cardiac arrest, (b) the storage and transportation of fresh fish and fruits, and (c) the development of distributed air-conditioning systems. One of the promising methods for the contr...
Autores principales: | , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6407026/ https://www.ncbi.nlm.nih.gov/pubmed/30781718 http://dx.doi.org/10.3390/biom9020070 |
_version_ | 1783401461396275200 |
---|---|
author | Takeshita, Yuki Waku, Tomonori Wilson, Peter W. Hagiwara, Yoshimichi |
author_facet | Takeshita, Yuki Waku, Tomonori Wilson, Peter W. Hagiwara, Yoshimichi |
author_sort | Takeshita, Yuki |
collection | PubMed |
description | The control of ice growth in ice slurry is important for many fields, including (a) the cooling of the brain during cardiac arrest, (b) the storage and transportation of fresh fish and fruits, and (c) the development of distributed air-conditioning systems. One of the promising methods for the control is to use a substance such as antifreeze protein. We have observed and report here growth states of ice particles in both quiescent and flowing aqueous solutions of winter flounder antifreeze proteins in mini-channels with a microscope. We also measured ice growth rates. Our aim was to improve the levels of ice growth inhibition by subjecting the antifreeze protein solution both to preheating and to concentrating by ultrafiltration. We have found that the ice growth inhibition by the antifreeze protein decreased in flowing solutions compared with that in quiescent solutions. In addition, unlike unidirectional freezing experiments, the preheating of the antifreeze protein solution reduced the ice growth inhibition properties. This is because the direction of flow, containing HPLC6 and its aggregates, to the ice particle surfaces can change as the ice particle grows, and thus the probability of interaction between HPLC6 and ice surfaces does not increase. In contrast to this, ultrafiltration after preheating the solution improved the ice growth inhibition. This may be due to the interaction between ice surfaces and many aggregates in the concentrates. |
format | Online Article Text |
id | pubmed-6407026 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-64070262019-03-13 Effects of Winter Flounder Antifreeze Protein on the Growth of Ice Particles in an Ice Slurry Flow in Mini-Channels Takeshita, Yuki Waku, Tomonori Wilson, Peter W. Hagiwara, Yoshimichi Biomolecules Article The control of ice growth in ice slurry is important for many fields, including (a) the cooling of the brain during cardiac arrest, (b) the storage and transportation of fresh fish and fruits, and (c) the development of distributed air-conditioning systems. One of the promising methods for the control is to use a substance such as antifreeze protein. We have observed and report here growth states of ice particles in both quiescent and flowing aqueous solutions of winter flounder antifreeze proteins in mini-channels with a microscope. We also measured ice growth rates. Our aim was to improve the levels of ice growth inhibition by subjecting the antifreeze protein solution both to preheating and to concentrating by ultrafiltration. We have found that the ice growth inhibition by the antifreeze protein decreased in flowing solutions compared with that in quiescent solutions. In addition, unlike unidirectional freezing experiments, the preheating of the antifreeze protein solution reduced the ice growth inhibition properties. This is because the direction of flow, containing HPLC6 and its aggregates, to the ice particle surfaces can change as the ice particle grows, and thus the probability of interaction between HPLC6 and ice surfaces does not increase. In contrast to this, ultrafiltration after preheating the solution improved the ice growth inhibition. This may be due to the interaction between ice surfaces and many aggregates in the concentrates. MDPI 2019-02-18 /pmc/articles/PMC6407026/ /pubmed/30781718 http://dx.doi.org/10.3390/biom9020070 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Takeshita, Yuki Waku, Tomonori Wilson, Peter W. Hagiwara, Yoshimichi Effects of Winter Flounder Antifreeze Protein on the Growth of Ice Particles in an Ice Slurry Flow in Mini-Channels |
title | Effects of Winter Flounder Antifreeze Protein on the Growth of Ice Particles in an Ice Slurry Flow in Mini-Channels |
title_full | Effects of Winter Flounder Antifreeze Protein on the Growth of Ice Particles in an Ice Slurry Flow in Mini-Channels |
title_fullStr | Effects of Winter Flounder Antifreeze Protein on the Growth of Ice Particles in an Ice Slurry Flow in Mini-Channels |
title_full_unstemmed | Effects of Winter Flounder Antifreeze Protein on the Growth of Ice Particles in an Ice Slurry Flow in Mini-Channels |
title_short | Effects of Winter Flounder Antifreeze Protein on the Growth of Ice Particles in an Ice Slurry Flow in Mini-Channels |
title_sort | effects of winter flounder antifreeze protein on the growth of ice particles in an ice slurry flow in mini-channels |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6407026/ https://www.ncbi.nlm.nih.gov/pubmed/30781718 http://dx.doi.org/10.3390/biom9020070 |
work_keys_str_mv | AT takeshitayuki effectsofwinterflounderantifreezeproteinonthegrowthoficeparticlesinaniceslurryflowinminichannels AT wakutomonori effectsofwinterflounderantifreezeproteinonthegrowthoficeparticlesinaniceslurryflowinminichannels AT wilsonpeterw effectsofwinterflounderantifreezeproteinonthegrowthoficeparticlesinaniceslurryflowinminichannels AT hagiwarayoshimichi effectsofwinterflounderantifreezeproteinonthegrowthoficeparticlesinaniceslurryflowinminichannels |