Microbial Production of the Off-Flavor Geosmin in Tilapia Production in Brazilian Water Reservoirs: Importance of Bacteria in the Intestine and Other Fish-Associated Environments
| العنوان: | Microbial Production of the Off-Flavor Geosmin in Tilapia Production in Brazilian Water Reservoirs: Importance of Bacteria in the Intestine and Other Fish-Associated Environments |
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| المؤلفون: | Mie Bech Lukassen, Jeppe Lund Nielsen, Gianmarco Silva David, Raju Podduturi, Mikael Agerlin Petersen, Nadieh de Jonge, Reinaldo José da Silva, Niels O. G. Jørgensen, Sabine M Bjerregaard |
| المساهمون: | Aalborg Univ, Univ Copenhagen, Sao Paulo State Agribusiness Technol Jau, Universidade Estadual Paulista (Unesp) |
| المصدر: | Frontiers in Microbiology, Vol 10 (2019) Web of Science Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP Frontiers in Microbiology Lukassen, M B, de Jonge, N, Bjerregaard, S M, Podduturi, R, Jørgensen, N O G, Petersen, M A, David, G S, da Silva, R J & Nielsen, J L 2019, ' Microbial production of the off-flavor geosmin in tilapia production in Brazilian water reservoirs : Importance of bacteria in the intestine and other fish-associated environments ', Frontiers in Microbiology, vol. 10, no. OCT, 2447 . https://doi.org/10.3389/fmicb.2019.02447 Lukassen, M B, Jonge, N D, Bjerregaard, S M, Podduturi, R, Jørgensen, N O G, Petersen, M A, David, G S, da Silva, R J & Nielsen, J L 2019, ' Microbial Production of the Off-Flavor Geosmin in Tilapia Production in Brazilian Water Reservoirs : Importance of Bacteria in the Intestine and Other Fish-Associated Environments ', Frontiers in Microbiology, vol. 10, 2447 . https://doi.org/10.3389/fmicb.2019.02447 |
| بيانات النشر: | Frontiers Media S.A., 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Microbiology (medical), food.ingredient, Microorganism, lcsh:QR1-502, Microbiology, lcsh:Microbiology, 03 medical and health sciences, chemistry.chemical_compound, Nile tilapia, food, Aquaculture, Food science, Geosmin synthase, geoA, aquaculture production, Original Research, 030304 developmental biology, 0303 health sciences, biology, Off-flavour, 030306 microbiology, business.industry, food and beverages, Tilapia, biology.organism_classification, Geosmin, chemistry, off-flavor, Freshwater fish, geosmin, gastrointestinal tract, business |
| الوصف: | Made available in DSpace on 2020-12-10T19:41:28Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-10-31 Danish Council for Strategic Research Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Aim To determine major sources of microbially produced geosmin in the commercially important aquaculture fish species tilapia. Methods and Results Abundance and composition of geosmin-producing bacteria in water and fish biosphere (intestine, digesta, and fins) of Nile tilapia (Oreachromis niloticus) raised in net cages in Brazilian freshwater farms were examined. By combining qPCR of the geosmin synthase geoA gene and 16S rRNA gene amplicon sequencing to identify potential geosmin-producing organisms, we observed that the proportion and composition of geosmin producers appeared to be rather similar in the water, digesta, intestinal mucous, and on skin, making up about 0.1-0.2% of the total bacterial densities. A high proportion of Cyanobacteria and other putative geosmin producers affiliated to the Actinomycetales were identified in the intestinal mucous layer. The main uptake site for geosmin in fish is traditionally assumed to be through the gill surface, but the present results suggest that uptake by the intestinal tract may represent a major source of geosmin uptake in fish. Conclusion The high abundance of geosmin-producing bacteria in the intestinal mucous layer and digesta may indicate that the digestive system in fish is an important, but hitherto overlooked, source of geosmin and likely other off-flavors in fish. Aalborg Univ, Dept Chem & Biosci, Aalborg, Denmark Univ Copenhagen, Dept Plant & Environm Sci, Copenhagen, Denmark Univ Copenhagen, Dept Food Sci, Sect Design & Consumer Behav, Copenhagen, Denmark Sao Paulo State Agribusiness Technol Jau, Jau, Brazil Univ Estadual Paulista Julio Mesquite Filho, Inst Biociencias, Dept Parasitol, Botucatu, SP, Brazil Univ Estadual Paulista Julio Mesquite Filho, Inst Biociencias, Dept Parasitol, Botucatu, SP, Brazil Danish Council for Strategic Research: 3050-00008A FAPESP: 3050-00008A3050-00008A FAPESP: 2013/50504-5 |
| وصف الملف: | application/pdf |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9540e961646bf2b4a17fea27e6addf46 https://www.frontiersin.org/article/10.3389/fmicb.2019.02447/full |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....9540e961646bf2b4a17fea27e6addf46 |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |