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Kluyveromyces marxianus
Kluyveromyces marxianus colonies.jpg
Scientific classification
Kingdom: Fungi
Division: Ascomycota
Class: Saccharomycetes
Order: Saccharomycetales
Family: Saccharomycetaceae
Genus: Kluyveromyces
Species: K. marxianus
Binomial name
Kluyveromyces marxianus
Van der Walt, 1971[1]

Kluyveromyces fragilis
Kluyveromyces cicerisporus
Candida pseudotropicalis
Candida kefyr

Kluyveromyces marxianus is a species of yeast in the genus Kluyveromyces, and is the sexual form (teleomorph) and proper name of Candida kefyr. K. marxianus is used commercially to produce the lactase enzyme similar to the use of other fungi such as those in the genus Aspergillus.[2]

It is produced as a nutritional yeast and bonding agent for fodder and pet food, and as a source of ribonucleic acid in pharmaceuticals.[3]


  1. ^ Van der Walt (1971). Bothalia. 10 (3): 418.  Missing or empty |title= (help)
  2. ^ I. Seyis and N. Aksoz (2004). "Production of Lactase by Trichoderma sp." (PDF). Food Technol. Biotechnol. 42 (2): 121–124. 
  3. ^ "Archived copy". Archived from the original on 2011-07-18. Retrieved 2009-08-04. 

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