U.S. scientists have developed a "space" bioreactor: metabolizing waste into food.

Biologists and engineers in Pennsylvania have announced that they have developed the first "space" bioreactor that converts astronauts' metabolic waste into nutrients rich in protein and fat, foreign media reported.
reported that the team announced the findings in an article published in the journal Life Sciences in Space Research. "We developed and implemented the concept of simultaneously disposing of astronaut sushofing and converting it into edible substances," Christopher House of the University of Pennsylvania was quoted as saying by
media.
, while similar ideas may seem strange, are essentially no different from margarine and pasta made from yeast extract or beer malt juice.
" NASA believes that the food security of future Mars astronauts and deep-space travelers is the second most common problem to be solved after high radiation in space.
scientists are trying to solve this problem through two channels: the development of new high-calorie and space-enriched foods that can be preserved for a long time and replace the astronauts' rations, and the development of systems for astronauts to produce their own food.
scientists point out that the nutrients and nutrients contained in the metabolic waste of the current ISS members are virtually not used at all, and that the on-site health system simply extracts water from it and freezes it. Scientists in
Pennsylvania have suggested eliminating this defect by using microbes to process the waste.
Source: ChinaNet-China Network.