Author(s)

Josabeth Ickofa^1,2,3, Christian Aimé Kayath^1,2*, Michel Dzondo Gadet^3,4

¹Laboratoire de Biologie Cellulaire et Moléculaire (BCM), Faculté des Sciences et Techniques, Université Marien N’GOUABI, Brazzaville, République du Congo.
²Institut national de Recherche en Sciences Exactes et Naturelles (IRSEN), Avenue de l’Auberge Gascogne, Brazzaville, Congo.
³Laboratoire de l’ingénierie moléculaire et Sensorielle Alimentaire (IMSA/ENSP), Université Marien N’GOUABI, Brazzaville, Congo.
⁴Centre de Recherche et d’Initiation des Projets de Technologies, Cité Scientifique, Avenue de l’Auberge Gascogne, Congo, Brazzaville.

Due to its nutritional values, cassava has become an unavailable food and is one of the essential foods in the Republic of Congo. Fermentation of tubers is still traditional. Fiftyrod-shaped spore-forming bacteria were screened and carried out in batch mode for the fermentation abilities of cassava tubers in order to develop biotechnological starter. The Penetrometry Index (PI) has been used to screen bacteria and 16SrRNA as well as fibEone step multiplex PCR which were used to molecularly identify isolates. Emulsification Index, Proteolytic as well as amylolytic, and cellulolytic activities of some strains were quantitatively evaluated for prooving orgaleptic characterics. As results Bacillus subtilis (MT994787), Bacillus subtillis (MT994789), Bacillus tequilensis (MT994788), Bacillus safensis, and Bacillus subtilis have been identified. Single isolates were able to ferment tubers in 48 h and 72 hours meanwhile Bacillus consortia were able to shift fermentation of tubers from 48 hours to 24 hours. The consortium could be used as the major bacterial starters. Strains were associated with the ability to secrete biomolecules including biosurfactants, protease, amylase and cellulase.

Consorsium, Fermentation Process, Cassava, Strains

Ickofa, J. , Kayath, C. and Gadet, M. (2020) First Development of a Biotechnological Ferment Based on a Consorsium of the Genus Bacillus for the Optimization of the Fermentation Process of Cassava Tubers. Advances in Microbiology, 10, 563-574. doi: 10.4236/aim.2020.1010041.