Lactic Acid Bacteria

In 1988 a rapid method for differential enumeration oiLactobacillus and Pediococcus from meat starter cultures was described (47). An improved selective-differential culture medium was used together with the HGMF to achieve a differential count even when one genus was present in fairly large excess relative to the other. This method enabled confirmed enumeration of both genera in 48 h, as compared with a minimum of 72 h with the previous best method.

More recently, the development of an analogous procedure for enumerating Lactobacillus bulgaricus and Streptococcus thermophilus in yogurt was reported (48). Once again, the colony-separating properties of the grid, together with another newly designed culture medium, enabled direct differential enumeration of the two different bacterial species on a single filter even at cocci-to-rod ratios from 20:1 to 1:5.

Homemade Pet Food Secrets

Homemade Pet Food Secrets

It is a well known fact that homemade food is always a healthier option for pets when compared to the market packed food. The increasing hazards to the health of the pets have made pet owners stick to containment of commercial pet food. The basic fundamentals of health for human beings are applicable for pets also.

Get My Free Ebook


Post a comment