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    A Comparison Of The Viability Of Streptococcus Lactis After Freeze Drying From Blood Serum And Skim Milk

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    1959_DernbachD_THS_000142.pdf (43.16Mb)
    Author
    Dernback, Daniel
    Advisor
    Donald Waldhalm
    Date of Issue
    1959-04-01
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    URI
    https://scholars.carroll.edu/handle/20.500.12647/3290
    Title
    A Comparison Of The Viability Of Streptococcus Lactis After Freeze Drying From Blood Serum And Skim Milk
    Type
    thesis
    Abstract
    The process of freeze drying has been successfully used to preserve bacterial cultures over long periods of time. This process assures no alteration of the biological characteristics, either physical or chemical, of the material frozen. The viability of the organism is determined by the affect which the media has on the organism during the process. The biological characteristics remain unaltered after drying is completed due to the fact that the metabolic processes stop almost completely. These metabolic processes are dependent largely upon osmosis, diffusion, ionization and the colloidal state, all of which are in turn dependent upon hydration. The purpose of t his experiment is to determine the comparative viability of Streptococcus lactis after freeze drying from two different media: blood serum and skim Milk. Since blood serum is considered an optimal medium for the freeze drying of any material, and skim milk is an optimum medium for the cultivation of the Streptococcus lactis organism, the two media are beneficial to the organism in that they both promote good growth. The media used in this experiment are unique for such a purpose. However, they will not necessarily be equally beneficial when used for the purpose of freeze drying.The process of freeze drying has been successfully used to preserve bacterial cultures over long periods of time. This process assures no alteration of the biological characteristics, either physical or chemical, of the material frozen. The viability of the organism is determined by the affect which the media has on the organism during the process. The biological characteristics remain unaltered after drying is completed due to the fact that the metabolic processes stop almost completely. These metabolic processes are dependent largely upon osmosis, diffusion, ionization and the colloidal state, all of which are in turn dependent upon hydration. The purpose of t his experiment is to determine the comparative viability of Streptococcus lactis after freeze drying from two different media: blood serum and skim Milk. Since blood serum is considered an optimal medium for the freeze drying of any material, and skim milk is an optimum medium for the cultivation of the Streptococcus lactis organism, the two media are beneficial to the organism in that they both promote good growth. The media used in this experiment are unique for such a purpose. However, they will not necessarily be equally beneficial when used for the purpose of freeze drying.The process of freeze drying has been successfully used to preserve bacterial cultures over long periods of time. This process assures no alteration of the biological characteristics, either physical or chemical, of the material frozen. The viability of the organism is determined by the affect which the media has on the organism during the process. The biological characteristics remain unaltered after drying is completed due to the fact that the metabolic processes stop almost completely. These metabolic processes are dependent largely upon osmosis, diffusion, ionization and the colloidal state, all of which are in turn dependent upon hydration. The purpose of t his experiment is to determine the comparative viability of Streptococcus lactis after freeze drying from two different media: blood serum and skim Milk. Since blood serum is considered an optimal medium for the freeze drying of any material, and skim milk is an optimum medium for the cultivation of the Streptococcus lactis organism, the two media are beneficial to the organism in that they both promote good growth. The media used in this experiment are unique for such a purpose. However, they will not necessarily be equally beneficial when used for the purpose of freeze drying.The process of freeze drying has been successfully used to preserve bacterial cultures over long periods of time. This process assures no alteration of the biological characteristics, either physical or chemical, of the material frozen. The viability of the organism is determined by the affect which the media has on the organism during the process. The biological characteristics remain unaltered after drying is completed due to the fact that the metabolic processes stop almost completely. These metabolic processes are dependent largely upon osmosis, diffusion, ionization and the colloidal state, all of which are in turn dependent upon hydration. The purpose of t his experiment is to determine the comparative viability of Streptococcus lactis after freeze drying from two different media: blood serum and skim Milk. Since blood serum is considered an optimal medium for the freeze drying of any material, and skim milk is an optimum medium for the cultivation of the Streptococcus lactis organism, the two media are beneficial to the organism in that they both promote good growth. The media used in this experiment are unique for such a purpose. However, they will not necessarily be equally beneficial when used for the purpose of freeze drying.The process of freeze drying has been successfully used to preserve bacterial cultures over long periods of time. This process assures no alteration of the biological characteristics, either physical or chemical, of the material frozen. The viability of the organism is determined by the affect which the media has on the organism during the process. The biological characteristics remain unaltered after drying is completed due to the fact that the metabolic processes stop almost completely. These metabolic processes are dependent largely upon osmosis, diffusion, ionization and the colloidal state, all of which are in turn dependent upon hydration. The purpose of t his experiment is to determine the comparative viability of Streptococcus lactis after freeze drying from two different media: blood serum and skim Milk. Since blood serum is considered an optimal medium for the freeze drying of any material, and skim milk is an optimum medium for the cultivation of the Streptococcus lactis organism, the two media are beneficial to the organism in that they both promote good growth. The media used in this experiment are unique for such a purpose. However, they will not necessarily be equally beneficial when used for the purpose of freeze drying.
    Degree Awarded
    Bachelor's
    Semester
    Spring
    Department
    Life & Environmental Sciences
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    • Life and Environmental Sciences Undergraduate Theses

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