Kocho is a traditional product in Ethiopia, prepared by fermenting parts of 'false banana' plants (). Fermentation practices of kocho vary depending on the region of Ethiopia. In this study, 14 kocho samples originating from four different areas were investigated. They varied both in the fermentation technique and the duration of fermentation. Samples were analysed to determine the microbial community using culture-independent 16S amplicon high-throughput sequencing. In addition, bacterial strains were isolated and identified. Furthermore, the volatile profiles were characterized by HS-SPME treatment coupled with GC/MS. The results indicated that and were the most dominant genera during kocho fermentation with and being the prevalent species of The analysis of the volatile profiles demonstrated that acetic acid and butanoic acid prevailed in all samples. Our results showed that kocho samples prepared in different areas and using different processing methods varied both in the composition of the microbiota and in their volatile profiles.
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http://dx.doi.org/10.1016/j.heliyon.2019.e01842 | DOI Listing |
J Food Sci
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Digital Agriculture, Food and Wine Research Group, School of Agriculture, Food and Ecosystem Science, Faculty of Science, The University of Melbourne, Melbourne, Victoria, Australia.
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Key Laboratory of Agro-food Quality and Safety of Ministry of Agriculture and Rural Affairs, Institute of Agricultural Quality Standard and Testing Technology, Chinese Academy of Agricultural Sciences, Beijing, China.
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