Degradation of hop bitter acids by fungi |
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| Authors: | Huszcza Ewa Bartmańska Agnieszka Anioł Mirosław Maczka Wanda Zołnierczyk Anna Wawrzeńczyk Czesław |
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| Affiliation: | 1. Post-Graduate in Aquatic Environments Ecology Continental, Universidade Estadual de Maringá, Maringá, PR, Brazil;2. Ministério Público do Estado do Paraná, 3ª Promotoria de Justiça de Maringá, Maringá, PR, Brazil;3. Núcleo de Pesquisas em Limnologia, Ictiologia e Aqüicultura (NUPELIA), Department of Biology, Post-Graduate in Aquatic Environments Ecology Continental, Universidade Estadual de Maringá, Maringá, PR, Brazil;1. University of Konstanz, Department of Physics, P.O. Box X916, 78457 Konstanz, Germany;2. Heraeus Precious Metals GmbH & Co. KG, Heraeusstr. 12 - 14, 63450 Hanau, Germany;1. School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough, Leics LE12 5RD, United Kingdom;2. Frank Wright Trouw Nutrition International, Blenheim House, Blenheim Road, Ashbourne, Derbyshire DE6 1HA, United Kingdom |
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| Abstract: | 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. |
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