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  • Title: [Influence of lipids on ice formation during the freezing of cryoprotective medium].
    Author: Andreeva AA, Sadikova DG, Labbe C, Anan'ev VI, Kurchikov AL.
    Journal: Biofizika; 2008; 53(4):598-601. PubMed ID: 18819274.
    Abstract:
    The influence of lipids on ice formation during the freezing of cryoprotective medium for the semen of rainbow trout has been studied by the cryomicroscopy technique. It was shown that the lipids extracted from marine vertebrates and liposomes from the lipids of trout sperm effectively inhibit the ice formation in cryoprotective solutions during freezing, fundamentally changing the form and size of ice crystals. At high concentrations of lipids, either the crystallization does not occur in the cryoprotective medium or, even if ice crystals are formed, they have a broken shape and blurred borders. The addition of egg yolk sligthly increases the size and essentially changes the shape of ice crystals during the freezing of solution.
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