Bracken to MPSE

Dear developers, 
I have run Bracken (only for species level) on 12 reports produced by Kraken2 (shotgun samples) and got the relevant reports in .txt format. 
I would like to make a biom file from Bracken outputs and analyze it with Microbiotaprocess reports. 
Is it possible to create such a biom file and convert it to mpse object and analyse it with Microbiotaprocess after? 
 
