Degradation of hop bitter acids by fungi.
Nine fungal strains related to: Trametes versicolor, Nigrospora oryzae, Inonotus radiatus, Crumenulopsis sororia, Coryneum betulinum, Cryptosporiopsis radicicola, Fusarium equiseti, Rhodotorula glutinis and Candida parapsilosis were tested for their ability to degrade humulones and lupulones. The best results were obtained for T. versicolor culture, in which humulones and lupulones were fully degraded after 4days of incubation in the dark or after 36h in the light. The experiments were performed on a commercial hop extract and on sterilized spent hops.
Huszcza
Ewa
E
Department of Chemistry, Wrocław University of Environmental and Life Sciences, Norwida 25, 50-375 Wrocław, Poland. huszcza@ozi.ar.wroc.pl
Bartmańska
Agnieszka
A
Anioł
Mirosław
M
Maczka
Wanda
W
Zołnierczyk
Anna
A
Wawrzeńczyk
Czesław
C
D000143:Acids / Q000032:analysis / Q000737:chemistry*; D001673:Biodegradation, Environmental; D019149:Bioreactors; D002138:Calibration; D004787:Environmental Pollution; D005285:Fermentation; D005658:Fungi / Q000378:metabolism*; D027582:Humulus / Q000378:metabolism*; D006863:Hydrogen-Ion Concentration; D008027:Light; D013997:Time Factors; D018505:Waste Management / Q000379:methods*
D000143:Acids