Effect of Freeze-Drying on the Viability Of Selected Anaerobic Microorganisms

Author

Joyce Ann Staab, Fort Hays State University

Document Type

Thesis - campus only access

DOI

10.58809/LVFC8790

Date of Award

Spring 1982

Degree Name

Master of Science (MS)

Department

Biology

Advisor

Judith C. Vogt

Abstract

The viability of ten strains of anaerobic bacteria following freeze-drying in single strength skim milk, double strength skim milk, and sucrose broth was assessed over a period of one year. The eight genera included in the study were: Clostridium, Propionibacterium, Bifidobacterium, Eubacterium. Bacteroides, Fusobacterium, Peptococcus, and Peptostreptococcus. The following conclusions were drawn: 1) spore formers appeared to maintain higher viability counts than did non-spore formers: 2) viability counts were marginally dependent on the aerotolerance of the anaerobe: 3) gram-positive organisms apparently maintained higher counts than gram-negative organisms; and 4) sucrose broth maintained higher viability counts than either skim milk media.

Comments

For questions contact ScholarsRepository@fhsu.edu

Recommended Citation

Staab, Joyce Ann, "Effect of Freeze-Drying on the Viability Of Selected Anaerobic Microorganisms" (1982). Master's Theses. 1867.
DOI: 10.58809/LVFC8790
Available at: https://scholars.fhsu.edu/theses/1867

Rights

© 1982 Joyce Ann Staab