Search results for "Streptomyces natalensis"

Efficacy of natamycin for control of growth and ochratoxin A production by Aspergillus carbonarius strains under different environmental conditions

2007

Aims:  To examine the efficacy of natamycin produced by Streptomyces natalensis against strains of Aspergillus carbonarius growth and ochratoxin A (OTA) production under different environmental factors on a grape juice-based medium. Methods and Results:  Detailed studies in the range 0–20 ng ml−1 for control of growth and ochratoxin production by strains of A. carbonarius at 0·98, 0·96 and 0·94 water availabilities (aw) and 15–25°C on a fresh red grape extract medium were examined. Inhibition of growth was depending on temperature and aw level. At 15°C, 5–10 ng ml−1 natamycin was effective in reducing growth almost completely. However, at 20–25°C and all the three aw levels, growth was only…