. Bacteriology and mycology of foods. Food. STERILIZATION BY FILTRITION 127 caogulatcd, etc. Such has been found to be the case as mentioned elsewhere. With the intermittent method the material is heated for twenty to thirty minutes on three successive days. On the first day the vegetative cells are killed. The second day's heating will destroy those vegetative cells which have come from spores which passed through the first day's heating. On the third day the process is simply checked Fig 40 â âBath for Sterilization at Low Temperatures (Inspissator). Inspissator. Some medja which are us
. Bacteriology and mycology of foods. Food. STERILIZATION BY FILTRITION 127 caogulatcd, etc. Such has been found to be the case as mentioned elsewhere. With the intermittent method the material is heated for twenty to thirty minutes on three successive days. On the first day the vegetative cells are killed. The second day's heating will destroy those vegetative cells which have come from spores which passed through the first day's heating. On the third day the process is simply checked Fig 40 â âBath for Sterilization at Low Temperatures (Inspissator). Inspissator. Some medja which are used by .bacteriologists must be sterilized at low temperatures. For this purpose a serum coagulator or inspissator is used. The media is heated at from 57° to 60° C. for different lengths of time. Blood serum may be heated for periods of one hour or for a longer period at one time. Sterilization by Filtration Filtration is an efficient method of sterilization which has certain distinct advantages over other methods. It leaves the filtrate sterile. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Tanner, Fred Wilbur, 1888-1957. New York, John Wiley & Sons, Inc. ; [etc. ,etc. ]
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