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Dependence of freeze-concentration inhibition on antifreeze protein

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Title: Dependence of freeze-concentration inhibition on antifreeze protein
Authors: Yamanouchi, Takuya Browse this author
Xiao, Nang Browse this author
Hanada, Yuichi Browse this author
Kamijima, Tatsuro Browse this author
Sakashita, Mami Browse this author
Nishimiya, Yoshiyuki Browse this author →KAKEN DB
Miura, Ai Browse this author
Kondo, Hidemasa Browse this author →KAKEN DB
Tsuda, Sakae Browse this author →KAKEN DB
Keywords: antifreeze protein
freeze-concentration inhibition
thermal hysteresis
Issue Date: 31-Mar-2013
Publisher: 北海道大学低温科学研究所
Journal Title: 低温科学
Journal Title(alt): Low Temperature Science
Volume: 71
Start Page: 91
End Page: 96
Abstract: The ability for freeze-concentration inhibition (FCI) was examined for type I antifreeze protein (AFPI)and antifreeze glycoprotein (AFGP)through the observation of the condensation of red-colored ink in an ice block for various concentrations of the proteins. The thermal hysteresis (TH), which indicates the ice growth inhibition strength, and ice-shaping ability were also examined for the two samples. The amount of AFPI and AFGP necessary for FCI was determined to be 0.1 mg/ml and 0.25 mg/ml, respectively. There was no significant difference in the TH of both samples. AFPI and AFGP shaped the ice crystals into hexagonal trapezohedrons and hexagonal bipyramids, respectively, where the former was thinner than the latter. These results suggest that a principle determinant of FCI is the ice-shaping ability, rather than the ice growth inhibition of AFPs.
Type: bulletin (article)
Appears in Collections:低温科学 = Low Temperature Science > 第71巻

Submitter: 低温科学研究所図書室

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