It might be like the biofuel from C. necator where it expels the output into the surrounding fluid so it can be harvested without the bacteria needing to be mos

It might be like the biofuel from C. necator where it expels the output into the surrounding fluid so it can be harvested without the bacteria needing to be most of the final product. Although, they do mention "macronutrient composition of the cells" so maybe it is the whole bacteria included.