Glucose가 staphylococcus aureus의 증식 및 enterotoxin 산생에 미치는 영향

Effect of glucose on growth of staphylococcus aureus and production of enterotoxin

Effects of glucose on aerobic growth of S. aureus(SEA and SEB) and production of enterotoxin A and B were evaluated. In BHI broth containing 2% glucose, the population of SEA strain were reached from 3.73 to 9.40 log after 16 hours of incubation at 37℃, Wherease, SEB strain were reached from 3.68 to 12.48 log. Generation time of SEA and SEB strain were 67.29 and 16.67 minutes, respectively. The pH change in BHI broth containing 2% glucose decreased from 7.16-7.19 to 6.96-5.47 during the period. In BHI broth containing 1, 2, 4 and 8% glucose, the detected amount of enterotoxin A was 100, 10, 8 and 2ng/ml after 16 hours of incubation at 37℃, respectively, whereas that of enterotoxin A and B produced by S. aureus were 100ng/ml after 24 hours of incubation. Production of enterotoxin by SEA strain were least in the samples containing 2% glucose but SEB were no effected in 8% glucose.