This sounds promising. A microbe that can produce a versatile and complete (containg all 9 essential amino acids, as well as iron and vitamin B12) protein in just under 70 hour with only air, electricity, water and minerals.
"Factory 01: Where the sun never sets on harvest season"
"Solein® – the world’s most sustainable protein – is harvested every day, no matter the weather, the season, or the time of year."
https://www.solein.com/blog/factory-01-where-the-sun-never-sets-on-harvest-season
