Springer Online Journal Archives 1860-2000
Process Engineering, Biotechnology, Nutrition Technology
Summary 53 strains of Penicillium roqueforti Thom obtained from culture collections, blue cheeses, sausages, and other sources are shown to grow abundantly on a Czapek Dox liquid medium supplemented with 0.5% acetic acid. None of 30 other strains (including P. charlesii, P. waksmani, P. rugulosum, P. brevi-compactum, P. herquei, P. viridicatum, P. cyclopium, P. velutinum, P. oxalicum, P. toxicarium, P. notatum, P. stoloniferum, P. chrysogenum, P. japonicum, P. casei, P. citreo-viride) exhibited this property. It is suggested that growth on acetic acid provides a simple tool for a rapid and preliminary identification of P. roqueforti Thom since growth can be observed as early as 3 days after inoculation.
Type of Medium: