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“What we’re trying to do overall is to take plastic or mixed waste from military operations and make it into something useful for the military,” Techtmann said. “Often, plastic is the hardest waste to deal with. Our project is trying to find ways to convert waste plastic into protein powder or nutritional supplements and lubricants. The general idea is that plastic is hard to break down using biology because it’s made up of a polymer, and its units are stuck together. To break apart the polymer, some bacteria can do this, but it’s very slow. So, to convert plastic into food quickly, we need an alternative approach.”
www.mtu.edu...
BioPROTEIN
The title of the plastic to protein powder project is BioPROTEIN (Biological Plastic Reuse by Olefin and Ester Transforming Engineered Isolates and Natural Consortia). Assistant professor of biological sciences at Michigan Tech, Stephen Techtmann, leads the team behind this project. The team includes Ting Lu, professor in bioengineering from the University of Illinois, Rebecca Ong, assistant professor of chemical engineering at MTU, David Shonnard, professor of chemical engineering and Joshua Pearce, electrical and computer engineer.
The process of turning plastic into protein powder begins by putting plastic material into a reactor that breaks down the structure of the plastic and transforms it “into an oily substance.” Bacteria then consume this substance and multiply speedily, creating “more bacteria cells, which are about 55% protein.” According to Techtmann, “the end result” looks similar to “a yeast byproduct that comes from brewing beer.” The scientists then dry out this byproduct, leading to the creation of an edible protein powder.
borgenproject.org...
How does it work? Plastic is identified, cleaned and ground up into confetti. This plastic could be meals ready to eat (MRE) wrappers from astronauts or soldiers, water bottles from tourists, plastic trash from the ocean or milk bags or jugs from your breakfast. Then, heat and chemical reactions break down plastic’s tight polymer chains into an oily fluid. The oily substance is fed to a community of oil-eating bacteria (these can be a natural collection or genetically engineered to turbocharge resulting protein for maximum nutrition) in a bioreactor, which grow quickly on their oily diet and produce more bacterial cells that are about 55 % protein. The machines are integrated together with open source electronics and software from Western’s Free Appropriate Sustainability Technology (FAST) lab run on electricity from solar photovoltaic panels and from waste gas from the pyrolysis reactor run through a generator.
***SNIP***
Progress to-date:
All of the subsystems have been proven and we have demonstrated plastic can be converted into protein. Current work is focusing on improving the efficiency of the process, integrating the sub-components, and ensuring that the resultant protein powder is safe to eat.
For a summary of the approach see: Laura G. Schaerer, Ruochen Wu, Lindsay I. Putman, Joshua M. Pearce, Ting Lu, David R. Shonnard, Rebecca G. Ong, Stephen M. Techtmann, Killing two birds with one stone: chemical and biological upcycling of polyethylene terephthalate plastics into food,Trends in Biotechnology,2022, doi.org... Academia Open Access
space.uwo.ca... d_natural_consortia.html
originally posted by: BeyondKnowledge3
a reply to: StoutBroux
Technically we have been eating plastic for many years. It is called American cheese. In most countries, it could not legally be called cheese. Read the ingredients if you don't believe me.
American cheese is not a total fraud. There is some true cheese in there! That vibrant orange color might clue you into the most common variety, cheddar. Some brands of American cheese also contain Colby, which results in a lighter color. This base cheese is combined with a mixture of whey, milk proteins and emulsifying salts, which makes it different than a traditional cheese. The added ingredients allow a slice to melt without breaking or turning greasy, providing that perfect cheese pull
American cheese is a processed cheese made from a blend of cheeses and other flavor-and texture-enhancing ingredients; whereas cheddar is a singular, natural cheese made from pressed and salted curds from 100 percent cow’s milk (raw or pasteurized) that has been coagulated with rennet. American cheese has a soft texture while cheddar is hard and crumbly. Because American cheese contains emulsifiers, it keeps the cheese creamy as it melts. Cheddar doesn’t contain emulsifiers, so it separates when it melts.
Your side is begging for this #. You support it. Voting has its consequences. Dinner is on me.
originally posted by: Terpene
a reply to: StoutBroux
Competition.... Great... Now you even get a choice. Bugs or plastic! See that's how your freedom works
Just like a US election, you will make a choice because freedom...
originally posted by: ScarletDarkness
They (the demented 1%) want us eating bugs, feces, corpes, and now garbage plastic! It just gets better and better.
These people are absolutely criminally insane and see us as trash
originally posted by: Dalamax
Or you can eat corpses, bugs,sh!t and plastic
I get it, if you don’t eat you dont crap, if you dont crap you die.