BIOTALK: "Strategies to promote next generation probiotics viability and stability under stress conditions"

Sexta-feira , 27 de Setembro 2019 - 14:15

Escola Superior de Biotecnologia

Rua de Diogo Botelho 1327
PortoPorto4169-005
Portugal
Show map
27.09.2019 | 14h15

Auditório EBI - 100

Daniela Machado
Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina – Laboratório Associado, Escola Superior de Biotecnologia, Porto, Portugal.

Abstract
In recent years, the scientific community has been widening their knowledge about dynamics involved in metabolic and inflammatory disorders. The prevalence of these conditions are reaching epidemic proportions, bringing new challenges to clinicians and researchers. The specific roles and modulating properties that beneficial/probiotic bacteria hold in the context of the gut ecosystem seem to be a key strategy to avert such imbalances. Currently, Akkermansia muciniphila, Faecalibacterium prausnitzii and Eubacterium hallii have emerged as potential next generation probiotics (NGP) given their demonstrated potential in prevention and treatment of inflammatory/cardio-metabolic disorders. The challenges of these non-conventional native gut bacteria lie mainly on their sensitivity to aerobic environments which precludes the development of nutraceutical and therapeutic formulations. In this line of research supported by the EOSBAC and CAPEOSBAC projects we intend to develop strategies to enhance the viability and stability of NGPs under stress conditions, including aerobic storage and gastrointestinal (GI) passage. The initial steps toward the achievement of such goals have been performed using A. muciniphila and will be the focus of this biotalk. Asides a comprehensive phenotypic characterization of A. muciniphila DSM 22959, exposure to ambient air resilience, adhesion properties viability and stability when incorporated in different formulations or encapsulated and submitted to both GI transit and aerobic storage will be covered.

Acknowledgments: This work was supported by national funds through FCT/MEC (PIDDAC), project reference IF/00588/2015 and by Operational Program Competitiveness and Internationalization in its FEDER component and by the budget of the Foundation for Science and Technology, I.P. (FCT, IP) in its OE component, project reference POCI-01-0145-FEDER-031400 (PTDC/BAA-AGR/31400/2017) with scientific collaboration of CBQF under the FCT project UID/Multi/50016/2019.