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It is well known that kefir grains from different locations have various microbiological compositions and it is not certain that there is comparison between different samples. The mechanism of grain formation is not clear. In the previous studies no authors have reported the presence of kefir grains with a globular, sagy structure resembling small pouches . In this study we showed a distinct kefir grain formation exist after cauliflower-like structures and sheet-like structures.
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Yaman et al. (2006) studied this question.
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