SOLEiN

Solein Solar Foods is a producer of single cell protein (a meat substitute) founded in 2017. It focuses on using solar energy to produce bacteria food. Solar Foods Ltd. manufactures Solein, a single cell protein. As well as having a high-protein content (50%), the flour-like ingredient contains 5–10 percent fat, and 20–25 percent carbohydrates. It is reported to look and taste like wheat flour. The product's initial launch was set to be in 2021, but production began in 2024. Solein is made by extracting carbon dioxide (CO2) from the atmosphere (see Direct air capture) and combining it with hydrogen (captured through hydrolysis), mineral nutrients and optionally vitamins. The hydrogen-oxidizing bacteria Xanthobacter sp. VTT-E-193585, also known as Xanthobacter sp. SoF1, is able to use these input gases and nutrients to reproduce and grow in a chemoautotrophic way. It can turn inorganic nitrogen (such as ammonium) into organic nitrogen (like amino acids and proteins). Electricity is needed for the process, but solar energy from Fortum (its partner) is used. According to Solar Foods, the product is "highly functional", having been tested in products such as meat alternative, noodles, and ice cream.
https://www.youtube.com/watch?v=NxuZV8hv6Mk
Solein in Singapore - Witness a unique moment in the history of food
https://www.youtube.com/watch?v=0YIwGeqwG5Y
The secret lab making the most sustainable food in the world | Just Might Work by Freethink