isolated from the fecal samples of subjects consuming a fermented
whey drink containing Lactobacillus GG had adherence
properties equal to those of the original strain (16; Table 1).
With use of the human intestinal mucus glycoprotein adhesion
model, the adhesion properties of Lactobacillus GG were studied
by using different production lots as well as the strain recovered
from feces. The adhesion tests were conducted as described
earlier (6). The production lots included the original Lactobacillus
GG (ATCC 53103; a gift from SL Gorbach, Tufts University,
Boston), a Lactobacillus GG pharmaceutical grade starter culture
(Valio Ltd, Helsinki), a Lactobacillus GG starter culture
provided by Valio Ltd, and frozen samples of freeze-dried production
lots 1089 (Valio Ltd, 1987) and WA IV (Valio Ltd,
1987). In addition, a fecal isolate of Lactobacillus GG recovered