Possibilities for Application of Cellulose Derivatives under Cryoconservation of Probiotics

Institute of Cryobiology and Food Technologies, BG - 1407 Sofia, Bulgaria


NACHEVA, I., L. GEORGIEVA and Ts. TSVETKOV, 2007. Possibilities for application of cellulose derivatives under cryoconservation of probiotics. Bulg. J. Agric. Sci., 13: 153-159

Decoding mechanisms for hypo-and anabiosis at low temperature adaptations is of primary importance to the life activity of all organisms.
The collection of many scientific investigations in the area of cryobiology has determined lots of factors, destroying the biological systems under cryogenic treatment.
Up to the present there is no information available regarding the application of cellulose derivatives as cryoprotective media during freezing and lyophilization of foods and microorganisms- lactic acid bacteria, yeasts etc.
In the paper the authors present the possibilities for application of some types of modified synthetic hydrocolloids (Na-carboxymethylcellulose and methylcellulose) as cryoprotective media for probiotics cryoconservation.

Key words: freeze-drying, cellulose derivates, lactic acid bacteria, cryoprotection

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