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Higher biomass yield in batch cultures - (Dec/02/2006 )

Dear all,
I've a question regarding a batch culture of amylase-producing Bacillus spp. The biomass mass yield was found to be higher than expected. What are the possible explanations for such observations besides experimental errors?

thanks alot:)



well biomass is defined as the amount of pelletet material after centrig=fugation of a culture.
So basically, the living elements have divied themselves (growing culture, more bacillus cells) and at a lower level, if the protein is still internal, the protein in the cell enhance the bacillus mass.

But assuming it's for large scale production, the protein should have been secreted. So it's only the augmentation of bacillus cells that have drived the increase of biomass