Also found in: Medical, Acronyms, Wikipedia.


A mucoid polysaccharide matrix produced by bacterial colonies, such as those in biofilms, that protects against heat, antibiotics, and other chemicals.
References in periodicals archive ?
Optimization of Exopolysaccharide Production by Lactobacillus delbrueckii subsp bulgaricus RR Grown in a Semidefined Medium.
Aureobasidium pullulans ATCC 42023 is an environmental fungus found in soil and on plant leaves that produces both melanin-like pigments and exopolysaccharides such as pullulan.
Physicochemical properties of exopolysaccharide produced by Lactobacillus kefiranofaciens ZW3 isolated from Tibet kefir.
PGA-producing Bacillus isolates have been reported but many of these produced exopolysaccharide also as in the case of natto producing Bacillus strains produced EPS consisting of a mixture of PGA and polysaccharide while fermentation of soybeans [16].
Strains can also assume a rugose phenotype (identifiable on culture by a characteristic rough/wrinkled appearance), in which the microorganism produces large quantities of an amorphous exopolysaccharide, leading to formation of a biofilm that is resistant to chlorine, UV light, and other standard disinfectants (19).
10] Davies DG, Chakrabarty AM, Geesey GG Exopolysaccharide production in biofilms: substratum activation of alginate gene expression by Pseudomonas aeruginosa.
Biofilms, which are common in nature, are microbial communities covered in exopolysaccharide material; they are often visible as slimy films on wet surfaces (e.
Bouzar F, Cerning J and M Desmazaud Exopolysaccharide production and texture promoting abilities of mixed-strain starter cultures in yoghurt production.
Once the signal intensity exceeds a certain threshold level, the genetic mechanisms underlying exopolysaccharide (EPS) production are activated which is able to trap nutrients and planktonic bacteria [1].