In vitro utilization of L-cystine by keratinophilic fungi inhabiting a gelatin factory

Summary. The amount of protein released into liquid culture medium and weight loss were taken as measures of wool degradation by Trichophyton simii and Aspergillus niger. Protein released into the culture medium was observed to be greater after T. simii treatment than after A. niger treatment. Sulphitolysis was shown by T. simii, whereas it was absent in the case of A. niger. pH was found to be alkaline with an increase in soluble protein in the culture medium in the case of both uniculture and dual culture. However, both the weight loss of wool and the amount of protein released were significantly reduced when both fungi were allowed to attack the substrate. The behaviour of these fungi in dual culture reflects their antagonistic activities. Zusammenfassung. Die Proteinfreisetzung in flüssigem Kulturmedium und der Gewichtsverlust wurden als Maß des biologischen Abbaus von Wolle durch Trichophyton simii und Aspergillus niger gewertet. Die Proteinfreisetzung war größer nach Behandlung der Wolle mit T. simii als nach der mit A. niger. Sulfitolyse wurde nur bei T. simii, nicht dagegen bei A. niger beobachtet. Der pH‐Wert erhöhte sich bei den Abbauprozessen sowohl in Einzelkultur als auch in Doppelkultur gemeinsam mit beiden Pilzen. Der Gewichtsverlust der Wolle und die Proteinfreisetzung war jedoch signifikant vermindert, wenn beide Pilze zusammen zum Wollabbau eingesetzt wurden. Dies deutet auf Antagonismen zwischen beiden Pilzen hin.

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In vitro utilization of L-cystine by keratinophilic fungi inhabiting a gelatin factory

Cited by 2 publications

References 11 publications

Biodegradation of keratin waste: Theory and practical aspects

Biodegradation of keratin waste: Theory and practical aspects

Biodegradation of wool by Trichophyton simii and Aspergillus niger

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