Textiles: fiber preparation
Patent
1975-01-28
1976-06-08
Monacell, A. Louis
Textiles: fiber preparation
C12K 110
Patent
active
039620409
ABSTRACT:
A method for determining the concentration of an unknown bacterial solution using only a single bacterial growth plate for the determination. The method comprises depositing a varying amount of bacterial solution on the surface of a solidified agar plate by continuously varying the amount of solution deposited in the shape of a spiral on the agar which is in a rotating Petri dish. Thus, a higher concentration of bacteria per unit length occurs at the center of the spiral and a decreasing concentration per unit length at the edge of the plate. The plate is then incubated and the colonies in a predetermined area of the plate are counted in order to determine the concentration of the unknown solution. The bacterial colonies in a predetermined area may be counted by interrupting a light or laser beam incident to a photodiode, the light being interrupted by the presence of a bacterial colony. The concentration of the unknown solution may then be determined by relating the number of colonies counted to the area on which they were deposited.
REFERENCES:
gall et al., Developments in Industrial Microbiology; pp. 460-469 vol. 11; 1970.
Campbell Jeptha E.
Gilchrist James E.
Monacell A. Louis
The United States of America as represented by the Department of
Warden Robert J.
LandOfFree
Method and apparatus for plating and counting aerobic bacteria does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for plating and counting aerobic bacteria, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for plating and counting aerobic bacteria will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1096561