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Ice Crystal Growth in Sucrose Solutions Containing Kappa‐ and Iota‐Carrageenans
Chemical Engineering & Technology ( IF 1.8 ) Pub Date : 2020-04-01 , DOI: 10.1002/ceat.201900644 Bercem Kiran‐Yildirim 1, 2 , Volker Gaukel 2
Chemical Engineering & Technology ( IF 1.8 ) Pub Date : 2020-04-01 , DOI: 10.1002/ceat.201900644 Bercem Kiran‐Yildirim 1, 2 , Volker Gaukel 2
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Measurements of ice recrystallization inhibition (IRI) and thermal hysteresis (TH) activities of kappa (κ)‐ and iota (ι)‐carrageenans were carried out to examine whether they can be novel cryoprotectants or not. IRI measurements indicate that both carrageenans reduce recrystallization in sucrose solution, but that the IRI activity of κ‐carregeenan is higher than that of ι‐carrageenan. TH measurements indicate that κ‐ and ι‐carrageenans do not exhibit TH activity. TH activity measurements of antifreeze glycoprotein (AFGP) in the presence of κ‐carregeenan demonstrate that this carregeenan neither influences the TH activity of AFGP nor the shape of the ice crystals. The round ice crystal shape transformed into an angular and elongated shape in the presence of both carregeenans.
中文翻译：
含有κ和Iota-卡拉胶的蔗糖溶液中冰晶的生长
测量了κ（κ）和iota（ι）-角叉菜胶的冰重结晶抑制（IRI）和热滞（TH）活性，以检查它们是否可以是新型的防冻剂。IRI测量表明，角叉菜胶两者减少再结晶的蔗糖溶液，但的IRI活性κ -carregeenan比的更高ι卡拉胶。TH测量表明，κ-和α-卡拉胶不显示TH活性。κ存在下抗冻糖蛋白（AFGP）的TH活性测量‐carregeenan证明该carregeenan既不影响AFGP的TH活性也不影响冰晶的形状。在两种carregeenans的存在下，圆形冰晶形状都转变为棱角形和细长形。
更新日期：2020-04-01
中文翻译：
含有κ和Iota-卡拉胶的蔗糖溶液中冰晶的生长
测量了κ（κ）和iota（ι）-角叉菜胶的冰重结晶抑制（IRI）和热滞（TH）活性，以检查它们是否可以是新型的防冻剂。IRI测量表明，角叉菜胶两者减少再结晶的蔗糖溶液，但的IRI活性κ -carregeenan比的更高ι卡拉胶。TH测量表明，κ-和α-卡拉胶不显示TH活性。κ存在下抗冻糖蛋白（AFGP）的TH活性测量‐carregeenan证明该carregeenan既不影响AFGP的TH活性也不影响冰晶的形状。在两种carregeenans的存在下，圆形冰晶形状都转变为棱角形和细长形。
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