Organic compounds are a scarce resource in the Universe, only abundantly produced on the surface layer of planets where thin life exists. Utilizing industry to synthesize organic compounds, especially complex ones, is definitely an arduous and thankless task. Humans can industrially synthesize urea and methane, but to synthesize amino acids from inorganic substances… certainly possible, but most of the synthesized amino acids are toxic!
Among all amino acids, except glycine, all have chiral carbon atoms. Only biological entities, the most precise factories, could possibly synthesize amino acids with a single chiral configuration.
Whether it's animals or plants, ingesting artificially synthesized D-amino acids would likely cause significant adverse reactions.
Compared to complex organic substances, the separation of nuclear fuels like Helium-3 is much simpler. Any civilization capable of mining Jupiter-like planets can separate an almost endless supply of Helium-3.
