The article on
Body Mining raises some interesting questions on the demand and worth of biomass. According to the article, it's economically feasible to go out into space, retrieve corpses, and sell the biomass for profit. Simply visiting an old battlefield and sifting through the wreckage is in itself dangerous business, not just for raiders and pirates but the basic hazards of sifting space debris and spent munitions.
The article notes that "biomass of any quality" has a value, and can be sold for some amount of profit. Having said that, it's hard to imagine an economy where going out and salvaging corpses is more practical than growing moss in a tube, grinding it up, and selling the resultant 'biomass.' Perhaps biomass is a technical term, referring to a specific composition of nutrients and chemicals associated with recycled human bodies? The wiki item entry on Biomass
suggests otherwise.
Or perhaps I'm still thinking with an Earth paradigm, where growing organic matter is far more trivial a task than space travel. Perhaps in interstellar New Eden, flying a starship out and picking up dead people is more economical than running a greenhouse.