S. Sofia strain S1296a has been previously found to attach to five abiotic surfaces at significantly higher levels than
S. Typhimurium strains, including the ATCC 14028 strain(RS) used in this study [23]. SS attached in significantly
lower levels than RS after a period of 20 min attachment,but only on farm eggs. Properties of both the cell and the
substrate are known to affect the attachment of bacteria.Surface properties such as surface roughness, surface free
energy, and hydrophobicity may affect bacterial attachment and are reviewed by Goulter et al. [24].