title: Effects of essential oil (blended and single essential oils) on anti-biofilm formation ofSalmonellaandEscherichia coli.
abstract: BACKGROUND
  Biofilms were the third-dimensional structure in the solid surface of bacteria. Bacterial biofilms were difficult to control by host defenses and antibiotic therapies.Escherichia coli (E. coli)andSalmonellawere popular pathogenic bacteria that live in human and animal intestines. Essential oils are aromatic oily liquids from plant materials and well known for their antibacterial activities.
  
  
  METHODS
  This study was conducted to determine effect of essential oil on anti-biological biofilm formation ofE. coliandSalmonellastrains in in vitro experiment. Two kinds of bacterial strains were separated from 0.2 g pig feces. Bacterial strains were distributed in 24 plates per treatment and each plates as a replication. The sample was coated with a Bacterial biofilm formation was.
  
  
  RESULTS
  Photographic result,Escherichia coli (E. coli)andSalmonellabacteria colony surface were thick smooth surface in control. However, colony surface in blended and single essential oil treatment has shown crack surface layer compared with colony surfaces in control.
  
  
  CONCLUSIONS
  In conclusion, this study could confirm that essential oils have some interesting effect on anti-biofilm formation ofE. coliandSalmonellastrains from pig feces.
authors.affiliation: Division of Food and Animal Sciences, Chungbuk National University, Cheongju, Chungbuk, 361-763 South Korea.
authors.forename: S Y
authors.initials: SY
authors.lastname: Oh
authors.affiliation: Division of Food and Animal Sciences, Chungbuk National University, Cheongju, Chungbuk, 361-763 South Korea.
authors.forename: W
authors.initials: W
authors.lastname: Yun
authors.affiliation: Division of Food and Animal Sciences, Chungbuk National University, Cheongju, Chungbuk, 361-763 South Korea.
authors.forename: J H
authors.initials: JH
authors.lastname: Lee
authors.affiliation: Division of Food and Animal Sciences, Chungbuk National University, Cheongju, Chungbuk, 361-763 South Korea.
authors.forename: C H
authors.initials: CH
authors.lastname: Lee
authors.affiliation: Division of Food and Animal Sciences, Chungbuk National University, Cheongju, Chungbuk, 361-763 South Korea.
authors.forename: W K
authors.initials: WK
authors.lastname: Kwak
authors.affiliation: Division of Food and Animal Sciences, Chungbuk National University, Cheongju, Chungbuk, 361-763 South Korea.
authors.forename: J H
authors.initials: JH
authors.lastname: Cho
keywords: Biofilm; Escherichia coli (E. coli); Essential oil; Pigs; Salmonella