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.

Berry Boosters

Berry Boosters

Acai, Maqui And Many Other Popular Berries That Will Change Your Life And Health. Berries have been demonstrated to be some of the healthiest foods on the planet. Each month or so it seems fresh research is being brought out and new berries are being exposed and analyzed for their health giving attributes.

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