Kluyveromyces fragilis is a yeast fungus. K. fragilis is used commercially to produce the lactase enzyme similar to the use of other fungi such as those in the genus Aspergillus.I. Seyis and N. Aksoz: Production of Lactase by Trichoderma sp., Food Technol. Biotechnol. 42 (2) 121–124 (2004)Free text.

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