It is reported that hetropolysaccharide; Kafiran which is produced by many Lactobacillus species such as L. kefiranofaciens, L. kefirgranum, L. parakefir, L. kefir and L. delbrueckii subsp. bulgaricus is a water soluble heteropolysaccharide and is consists of equal amount of glucose and galactose (Micheli et al., 1999).The composition and nature of any EPS is affected by the environmental conditions, biosynthetic pathways or rate of microbial growth in the medium. EPS of Streptococcus thermophilus was the first heteropolysaccharide studied and described in details (Doco et al., 1990).