2026-08-29T14:55:07Zhttps://repisalud.isciii.es/rest/oai/requestoai:repisalud.isciii.es:20.500.12105/272392026-02-19T01:19:24Zcom_20.500.12105_19604com_20.500.12105_2051col_20.500.12105_19605
Repisalud
author
Valderrama, M J
author
de Silóniz, M I
author
Gonzalo, P
author
Peinado, J M
2026-02-18T14:00:09Z
2026-02-18T14:00:09Z
1999-02
J Food Prot. 1999 Feb;62(2):189-93.
Journal of Food Protection
10030640
https://hdl.handle.net/20.500.12105/27239
A selective and differential solid medium, called Kluyveromyces Differential Medium (KDM), is described for the isolation of Kluyveromyces marxianus and K. lactis from dairy products. Its discriminative potential is based on the detection of the enzyme beta-galactosidase, in the absence of lactose. Of the more than 95 strains tested, including yeasts, bacteria, and filamentous fungus, only the strains of K. marxianus and K. lactis produced blue colonies on the medium due to the presence of X-Gal/ IPTG. The bacterial strains were not able to grow in KDM. On this basis, the medium was very satisfactory when testing naturally or experimentally contaminated dairy food products. When quality assessment tests were performed, optimal values of productivity (growth and color) and selectivity were obtained for K. marxianus and K. lactis.
eng
A differential medium for the isolation of Kluyveromyces marxianus and Kluyveromyces lactis from dairy products.
research article
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A differential medium for the isolation_J Food Prot_1999.pdf