Presence of α-amylases inrhizobacterias isolated from amazonian soils
International Journal of Development Research
Presence of α-amylases inrhizobacterias isolated from amazonian soils
Received 27th October, 2019; Received in revised form 03rd November, 2019; Accepted 16th December, 2019; Published online 29th January, 2020
Copyright © 2020, Cassiane Minelli-Oliveira et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Several bacteria found in nature produce α-α-amylases. This research evaluated the presence of thermotolerant α-amylases in rhizobacteria isolated from legume nodules to use for the conversion of starch from amylaceous plants. Forty rhizobacteria were tested for the presence of these α-amylases, as well as for the thermotolerance characteristic. Nineteen bacteria produced an amylolytic halo and eleven were showed to be thermophilic. As they are not pathogenic to animals and plants and are thermotolerant, these rhizobacteria are potential and safe sources to produce α-amylases for use in the bioindustry. The α-amylases of the rhizobacteria INPA R001 (Bradyrhizobiumsp) and INPA R020 (Paenibacillussp) showed the highest rates of amylolysis.
