Antimicrobial activity of Monascus pilosus IFO 4520 against contaminant of Koji.
Antimicrobial activity of Monascus pilosus IFO 4520 was examined to prevent contamination during beni-koji making in the open air. The antibacterial effect of the beni-koji prepared with this strain occured with 30 mg/ml of beni-koji extract in combination with 0.5% lactic acid against two contaminants of koji, Micrococcus varians and Bacillus subtilis. There were two compounds, antibacterial and antiyeast substances, in the beni-koji extract. These results suggest a possibility of inhibiting the growths of contaminants during beni-koji making using beni-koji extract and lactic acid.
Kono
I
I
Industrial Technology Center of Okayama Prefecture, Japan.
Himeno
K
K
D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D001203:Ascomycota / Q000737:chemistry*; D005285:Fermentation; D005506:Food Contamination; D019344:Lactic Acid / Q000494:pharmacology*; D008826:Microbial Sensitivity Tests; D012275:Oryza / Q000737:chemistry*
D000900:Anti-Bacterial Agents; D019344:Lactic Acid