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Science Technology

Finnish Scientists Produce a Protein Made 'From Thin Air' (huffpost.com) 151

New submitter SysEngineer shares a report from HuffPost: A new protein made from air, water and renewable electricity could revolutionize our food system within the next decade. Developed by the Finnish company Solar Foods in a lab just outside Helsinki, the protein -- called Solein -- is made using living microbes that are then grown in a fermenter in a process similar to brewing beer. The microbes are fed with carbon dioxide, hydrogen, oxygen and nitrogen all taken from the air. This fermentation process, which takes place in huge vats, produces a liquid that is removed and dried to give the final product -- a yellow flour-like powder with multiple food uses.

If the electricity comes totally from renewables -- the aim is to use solar and wind -- the production process could produce virtually zero greenhouse gas emissions, the company says. It would also require far less land and far less water than traditional agriculture. Solar Foods says just 10 liters (2.1 gallons) of water is needed for every 1 kilogram (2.2 pounds) of Solein. To produce 1 kilogram of soy requires 2,500 liters (550 gallons) of water, a figure that rises to more than 15,000 liters (3,300 gallons) for 1 kilogram of beef.
The scientists say Solein has three applications: it can be used as a protein additive in existing foods; it could work as a way to help ingredients bind together; and it could also be used as an ingredient in plant-based meat alternatives.
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Finnish Scientists Produce a Protein Made 'From Thin Air'

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  • Anti-marketing? (Score:4, Insightful)

    by Mal-2 ( 675116 ) on Wednesday January 08, 2020 @10:08PM (#59601366) Homepage Journal

    Why would they pick a product name that sounds reminiscent of Soylent? I can't imagine nobody ever saw the similarity, so at some level they must be good with this. I hope they know what they're doing.

    • Re:Anti-marketing? (Score:4, Informative)

      by Attila Dimedici ( 1036002 ) on Wednesday January 08, 2020 @10:27PM (#59601426)
      Because someone is already making a food product names soylent, so they couldn't use that.
      • Re:Anti-marketing? (Score:5, Informative)

        by timeOday ( 582209 ) on Thursday January 09, 2020 @01:03AM (#59601708)
        Here is a recent forbes article that mentions Soylent, Solein, and some others:

        https://www.forbes.com/sites/b... [forbes.com]

        I wouldn't be surprised if this becomes a more economical protein supplement and gradually displaces soy.

        • Soy protein is more popular as a functional ingredient than as a supplement, but presumably it works for that as well.

          • by Shaitan ( 22585 )

            Other than soy sauce not many use soy intentionally as a functional ingredient outside vegetarians who use it as a functional ingredient because they need to supplement the protein or their diet will kill them.

            That said, soybean oil is converted to biodiesel and used extensively and no matter how resource efficient this is to produce I doubt it will displace soy unless this researcher starts giving away/selling at low cost the means to start your own ongoing implementation.

            Time to test his ethics. If you di

            • The majority of soy protein is used in heavily processed meat/confectionery products.

              The most significant use related to vegans is probably soy milk, but because of lactose intolerance I doubt even there vegans make much of a dent in the total market.

                • by Shaitan ( 22585 )

                  Yeah but he makes a good point, Tofu might be a critical part of a vegetarian diet but vegetarian diets probably aren't significant enough to amount to a blip on the radar for usage of a commodity like soy. It is a fringe choice and not mainstream.

              • by Shaitan ( 22585 )

                "The majority of soy protein is used in heavily processed meat/confectionery products."

                That's a good point.

                But there is no question it is a stable of vegetarian diet (vegans are a specific and strict subset of the generic umbrella of non-meat eaters but most if not all depend heavily on soy).

    • Re:Anti-marketing? (Score:5, Interesting)

      by K. S. Kyosuke ( 729550 ) on Wednesday January 08, 2020 @11:02PM (#59601530)
      I wonder in how many different ways could you name a SOLar-made protEIN...
    • by thesupraman ( 179040 ) on Wednesday January 08, 2020 @11:25PM (#59601562)

      Stop with the BS 'required water' rubbish, as if the water is consumed.

      By definition 1kg of beef has consumed LESS than 1kg of water - lots of other water has 'passed through' in the process, including what the animal drank, processing, etc.. however that water is almost immediately returned to the environment, and is part of the global water cycle in a clean form within days, or weeks at most. It is NOT consumed.

      Do we count the water a fish lives in as part of ITS meats 'water footprint' I wonder?

      Perhaps we should count the toilet flushes in the facility that makes this new engineered 'food' as part of its footprint..

      I would love to know what the energy cost per kg on this stuff is, and what its 'multiple food uses' are, and how that would compare with say krill, which exist in quantities SO large that using it for a human protein source could not possibly impact its scale.... All without the need/risk of an engineered foodstuff.

      • by chrism238 ( 657741 ) on Wednesday January 08, 2020 @11:33PM (#59601578)
        The point is whether the water leaving the production process is as easily re-usable (without additional costs or energy to refresh it) as the watering entering the process.
        • by Bert64 ( 520050 )

          Most uses for water do not require "clean" water, water which is dirty in some ways is generally fine if not preferable for watering crops.
          The water which you used to wash your cattle and the barns in which they live will do fine for watering the crops.
          The water which your cattle drink will mostly pass through the cattle and come out as dirty water otherwise known as "urine", which can also be used for watering crops.
          You do not need to feed treated clean water to cattle, they will be happy drinking from riv

          • by Shaitan ( 22585 ) on Thursday January 09, 2020 @02:38AM (#59601864)

            "The water which your cattle drink will mostly pass through the cattle and come out as dirty water otherwise known as "urine", which can also be used for watering crops."

            No, it really can't unless you want to nitrogen burn your crops. Yes if you dilute it enough it would work but it's like a tsp to a gallon of additional water which defeats the point.

          • by LostMyAccount ( 5587552 ) on Thursday January 09, 2020 @08:09AM (#59602360)

            This is how you get e. coli contamination of your vegetable crops. Manure contaminated water gets sucked into the plants and even the bleach washes the salad makers use can't kill it because its captured inside the plant's cellulose matrix.

            I agree with the general idea that we don't need reverse-osmosis purified water for every possible water use, and that grey water with minimal filtering (usually just solids) is ideal for many re-use cases.

            But if you're gonna re-user water contaminated with sewage of some kind, it's gonna need more intensive filtration or be injected in small quantities at the start of a much longer water cycle so it gets cleansed through natural processes.

            • This is how you get e. coli contamination of your vegetable crops. Manure contaminated water gets sucked into the plants and even the bleach washes the salad makers use can't kill it because its captured inside the plant's cellulose matrix.

              I agree with the general idea that we don't need reverse-osmosis purified water for every possible water use, and that grey water with minimal filtering (usually just solids) is ideal for many re-use cases.

              But if you're gonna re-user water contaminated with sewage of some kind, it's gonna need more intensive filtration or be injected in small quantities at the start of a much longer water cycle so it gets cleansed through natural processes.

              Wait, are you really arguing that "manure contaminated water" cannot be used for watering plants? Wait until you hear about how manure has been used for, oh, I don't know, all of agricultural history?

              • https://www.cbc.ca/news/health... [www.cbc.ca]

                The problem has really been with produce eaten raw.

                Go ahead and use manure in your grain fields or with any other product that is subject to refining and more importantly heat cooking, as it will kill any lingering bacteria.

                But lettuce is especially vulnerable because of its high water content and the fact that it goes from field to store so quickly.

      • by Mr. Dollar Ton ( 5495648 ) on Thursday January 09, 2020 @12:14AM (#59601636)

        however that water is almost immediately returned to the environment,

        "Water molecules in the environment" is a thing that is very much different from "clean water in any given area that is technically possible to cap at a reasonable cost and can deliver the needed flow consistently", buddy.

        There may be a lot of the first, but the second is severely limited and very vulnerable to a lot of things people do to it.

        • by Shaitan ( 22585 )

          The first becomes the second by tossing it through some gravel, sand ,and then charcoal in succession or even just by filtering through some rock in the earth. If the source is biologically contaminated somehow you can play it safe and toss in a chlorine tablet. Chlorine, gravel, sand, and charcoal, and clean water are all completely renewable and renewable at a cost so low I doubt this protein will ever compete. The energy requirement (in a place which isn't too arid for people to keep living in while simu

          • The first becomes the second by tossing it through some gravel, sand ,and then charcoal in succession or even just by filtering through some rock in the earth.

            No, it doesn't, except in insignificant, edge cases.

            I will grant you, it does get more complicated in drastically overpopulated areas like urban environments

            50% of the world population lives in cities. USA is 90% urbanized. You claim you have a solution that does nothing for most of the world. Aren't you a bit disingenuous?

            instead of spreading to a density

            Communist countries had this thing called "residence permit", without which you could not change residence even within one country. Is that what you propose, or you have something less totalitarian in mind?

      • Correct, one kg animal meat is about 700 gm water (70%), so any other utilized in its growth, farming, and processing is simply "passing through" and returns to nature. But your comment is fallacious because of the sources an sinks for that pass-through water.

        Source: Water input into the meat growing requires safe sources from wells, aquifers, reservoirs. It is not coming from untreated pond water, ocean water and momentary rainfall. Those clean resources are limited, over-utilized, and failing or disap

        • Water input into the meat growing requires safe sources from wells, aquifers, reservoirs. It is not coming from untreated pond water

          So I take it you've never driven in the country, where you can see countless livestock of all kinds drinking from open untreated ponds or streams...

          Do you think a cattle rancher is out there giving each cow a bottle of Evion with a straw???

          LOL.

          • I live in the country, and while I'm not a dairy farmer or rancher, I do know a couple of dairy farmers and have observed that they do not let their cows drink out of just any old stream or pond. They worry about excessive dissolved solids and excessive coliform contamination. Streams and ponds that are deemed unfit for the cows and calves are fenced off. Perhaps cattle ranchers raising livestock for meat don't have to worry about these things, but I know dairy farmers do.
      • by ShanghaiBill ( 739463 ) on Thursday January 09, 2020 @01:18AM (#59601736)

        Stop with the BS 'required water' rubbish, as if the water is consumed.

        By that logic, my car uses no energy.

        The energy in the friction and turbulence, plus the heat energy radiated by the engine, is exactly the same as the energy in the gasoline. No energy was created or destroyed.

      • by Bengie ( 1121981 )
        The water is consumed in the sense that the bulk of the biomass sourced to feed the cows comes from areas that are arid and something like 90% of the water used for irrigation evaporates. Seeing that the water is sourced from underground and it takes about 10,000 years to replenish, it has effectively been "consumed". It has left the local environment, not to return for several millennia.
      • No one is interested in the total water content of the system, unless we are talking about space. When we say water is consumed we mean it was taken from the total delta amount, the water that is passing through a particular point in the hydrologic cycle at any given time. When that water is consumed it is changed from a usable liquid form into another form and isn't available until it falls as rain again, which most likely will be somewhere else. If California was to immediately use all of its available wa

      • "krill, which exist in quantities SO large that fishing them is limited by international treaty [ccamlr.org] ."
    • I was going to say that this sounds like Soylent Yellow to me.

  • by jfdavis668 ( 1414919 ) on Wednesday January 08, 2020 @10:14PM (#59601386)
    People won't know if they should be happy or protest.
    • So which is it fellas? "Just a plant," or an over-processed synthetic fake-food nightmare? Seems like we should pick one.

      Sounds to me like "just a plant" that is hyper-efficient at producing protein, which is awesome.

      • "Just a plant," or an over-processed synthetic fake-food nightmare?

        Most likely neither. What you see in the summary is an online rag substituting "Local news site" in the good ole PhD new cycle comic ( http://phdcomics.com/comics/ar... [phdcomics.com] ), while the Slashdot editor is doing their part as the Grandma. Except it is a grandma from a family without PhD grandkids.

      • by aevan ( 903814 )
        Plants aren't food, it's what food eats.
      • by Shaitan ( 22585 )

        Well there are plants which are good at producing protein, just usually not the complete set of proteins we need or that our bodies can use to synthesize any missing proteins it needs... because we are made of meat and most efficiently fueled by... meat. Some plants like hemp seed actually do contain complete protein alongside a perfect dietary ratio of omega 3 and omega 6 fatty acids. You can even grow those seeds up and make rope, strong fabric, and paper and they produce chemicals that help stimulate app

      • It mostly sounds like good marketing for an effecient way to produce yeast extract, which is already used to increase amounts of protein and vitamins in enriched food.
        • Just that it doesn't use sugar to feed the yeast, but runs on air and water, and a small amount of minerals.
          • Yeah I reread the summary and it is a bacterium rather than a yeast. Must be an autotroph if it doesn't require adding sugars. So.. more an blue-green algae extract than yeast :)
  • by stephanruby ( 542433 ) on Wednesday January 08, 2020 @10:21PM (#59601410)

    ...is made using living microbes that are then grown in a fermenter in a process similar to brewing beer.

    "similar to brewing beer". I guess those fermenters are full of complex sugars then. In which case, it's not only grown from "thin air" and the headline is just clickbait.

    • Developed by the Finnish company Solar Foods in a lab just outside Helsinki, the protein -- called Solein -- is made using living microbes that are then grown in a fermenter in a process similar to brewing beer.
      The microbes are fed with carbon dioxide, hydrogen, oxygen and nitrogen all taken from the air.

      It was like... in the next sentence.

      • The microbes are fed with carbon dioxide, hydrogen, oxygen and nitrogen all taken from the air.

        It was like... in the next sentence.

        Which is not exactly true.

        It still needs potassium, sodium, phosphorous, plus the minerals derived from the soil that the microbes first grew in.

        To produce the powder, Solar Foods first creates hydrogen through electrolysis (splitting water cells in a bioreactor using electricity). It then adds the hydrogen to carbon dioxide, as well as nutrients such as potassium, sodium, and phosphorus, and feeds this into microbes derived from soil.

        Now don't get me wrong. It still looks promising.

        But the headline and the summary are a bit of a oversimplification of what's really needed.

        • It was not exactly true, but nearly true. These small amounts of minerals should be negligible, compared to the water and land consumption of other production methods.
  • by Rick Schumann ( 4662797 ) on Wednesday January 08, 2020 @10:24PM (#59601418) Journal

    The microbes are fed with carbon dioxide, hydrogen, oxygen and nitrogen all taken from the air.

    Except if you look beyond their website, you find this: [dirt-to-dinner.com]

    Solein, a complete protein, is created from the combination of a proprietary bacteria, CO2, water, and electricity. The fermentation process is entirely natural and similar to the production of yeast. But instead of sugars, their unique microbes consume CO2 and hydrogen for energy via water electrolysis, a process of splitting water cells using electricity. Other nutrients are added, too, such as potassium, sodium, and phosphorus.

    Ah, I see. So what's the carbon impact of having to procure those elements?
    Also, they claim it's got 'all the essential amino acids', but I see no amino acid profile; does it really? Or is it deficient in one or more, regardless of actually containing them? Plants have protein, too, but most are deficient in one or more amino, which is why strict vegetarians have to eat specific combinations of certain foods in an attempt to avoid malnutrition.

    • by piojo ( 995934 ) on Wednesday January 08, 2020 @11:16PM (#59601548)

      Solein, a complete protein, is created from the combination of a proprietary bacteria, CO2, water, and electricity. The fermentation process is entirely natural and similar to the production of yeast. But instead of sugars, their unique microbes consume CO2 and hydrogen for energy via water electrolysis, a process of splitting water cells using electricity. Other nutrients are added, too, such as potassium, sodium, and phosphorus.

      Ah, I see. So what's the carbon impact of having to procure those elements?

      I brew a bit, and nutrients are added in quite small amounts compared to the sugars being fermented. Phosphorus seems the only one that will need to be added in a significant amount (as protein does contain significant phosphorus). And since phosphorus is used in fertilizers, I would assume this more direct application will be more efficient and have a lower environmental cost than all the other ways phosphorus is used to produce our foods.

      • Phosphorus seems the only one that will need to be added in a significant amount (as protein does contain significant phosphorus).

        Unless a protein is phosphorylated, it contains no phosphorus.
        Phosphorylation of a protein is a post-translational modification that can modify protein function and for signalling.
        DNA and RNA contain the bulk of biophosporous in cells.
        Cells do need a nitrogen source to make both proteins and nucleotides.
        This is why yeast do not grow well on sugar alone as there is only a carbon source
        and no nitrogen, phosphorus or minerals needed for cell division.

  • by mykepredko ( 40154 ) on Wednesday January 08, 2020 @10:25PM (#59601422) Homepage

    Actually, I could see this being useful for long duration space missions, if the volume and energy requirements were modest enough.

    Interesting technology.

  • Oh and aside from the missing details and quality [slashdot.org] of this stuff, if it's requirements for life and reproduction are so simple, what happens if it accidentally gets released into the wild? Would it become an environmental hazard, consuming resources and reproducing out of control? Since it's a bacteria, how susceptible is it to mutation? If you accidentally ingested the live bacteria, would it be harmful? Lots of questions still.
    • by HiThere ( 15173 )

      I expect that if it's been domesticated it will depend on it's cultivators to protect it against predators. That's true of just about every thing domesticated to benefit people. Just try to imagine a dairy cow surviving in the wild. (Perhaps some strains of beef cattle could. And pigs are known to successfully go feral. Cats, too, though it's questionable how domesticated they are.)

    • They produce nothing poisonous and their fitness in a non sterilized environment is pathetic. Don't worry about it.

    • If you release cattle into the wild you'll either end up with dead cattle, or feral cattle that slowly revert to wild type. Same with microbes. Any organism is susceptible to mutation, for cultures like this you would do a limited number of cell passages (e.g. generations) before returning to known good stock. Depending on the method for processing them into protein, the issue of ingesting live bacteria is as immaterial as it is with your frozen dinners: validate the production/cooking method and call i
  • Can they make beer out of thin air? Because that would be pretty interesting and like totally organic and stuff.

  • Solein Green is made out of people!

  • From thin air AND microbes.
  • there is joke in there somewhere

  • When's the last time this kind of shit ACTUALLY revolutionized something the common consumer uses?
  • ...it can be made out of people.
  • ... and it covers a healthy variety of diet, you are my new Heroes. ... I'm not even joking.

  • However, if the same student had managed to create a protein from _thick_ air, I would be extremely impressed.

  • Solar Foods says just 10 liters (2.1 gallons) of water is needed for every 1 kilogram (2.2 pounds) of Solein. To produce 1 kilogram of soy requires 2,500 liters (550 gallons) of water, a figure that rises to more than 15,000 liters (3,300 gallons) for 1 kilogram of beef.

    that's like comparing 3 completely different things.. If their Solein would be an end-product like beef, yeah, than the comparison holds up, but it's not. as I read it, it's not even completely comparable to Soy.. As I gather it's not more comparable to flour..

  • It contains 20% carbs and 10% fat as well so I might be feasible to use a closed system in space, so Matt Damon can get off his potato diet.

  • soon enough it will be time to say goodbye to real, natural, unprocessed food.
    everything we'll eat will be made in a lab or whatever.

    • Venison is good and all but the vast majority of everything I eat is domesticated. Assuming we don't cap human population via some mean (e.g. cost of living/education or govt fiat) this'll eventually be viewed the same way, and eating 'real' agricultural products like (domesticated/GMO) tomatoes will be like eating wild game today where it is a treat rather than a staple. For now, it is still cheaper to grow fields of (domesticated/GMO) corn than to whip up stuff in a lab.
  • by BAReFO0t ( 6240524 ) on Thursday January 09, 2020 @07:59AM (#59602342)

    They always blindly repeat this nonsense without thinking.
    Those 550 liters aren't used up, now are they?? Hell, with growing plants, it hasn't even gotten dirtly!
    It just flows into the ground, and some of it gets passed through the plant and evaporated back into the air!
    Catch it again, and you can drink it right away!

    So would you kindly stop that "uses so much water" bullshit??

    It's not a.chemical plant that literally transforms the molecules to another chemical and it is lost "forever"!
    Frankly, that sounds more like what YOU are doing!

    • by clive27 ( 889511 )
      Most agriculture don't rely on rains and natural streams for their produce. They require irrigation. They divert river, siphon off from lake, pump from underground to put water on their crops. Then, most of these water evaporates and down stream disappears, lake water level goes down, underground water level goes down. Many of these process have devastating effect on natural habitat. Salmon suddenly can't swim upward anymore, fish get caught in the pump, sink hole occurs.
      • by ceoyoyo ( 59147 )

        Most agriculture don't rely on rains and natural streams for their produce.

        Possibly in California. The USDA says in 2012 about 28% of harvested cropland in the US was irrigated (not necessarily continuously). The area of irrigated land has been decreasing as well.

        Worldwide, I would think that irrigated land is an even smaller proportion. Irrigation is expensive. You use it on high value, high intensity crops.

    • I already responded to someone saying the same thing, but I'll say it again: Water use is like cash flow. If fresh water is removed from the water cycle, it is consumed. Just because it will eventually be released into the atmosphere and eventually fall as rain does nothing to change the fact that it is no longer available for any other use in the here and now.
  • All of us are basically made out of "thin air".
  • I'm begging of you, please don't take my man.

  • I would like them to do quite a bit of testing before I decided that a substance made from a random bacteria was actually safe to consume. Seeing the number of people with health issues from plants that have been on the menu for thousands of years I don't necessarily trust something completely new to be a good staple food.
  • by Dunbal ( 464142 ) *
    No sulfur? Quite a few amino acids require sulfur and sulfur bridges are an important part of protein structure...
  • Thick air better for fat?
  • I know that in areas prone to drought like California, the concept of rising moo cows and the water it takes to raise them seems like a reason to become a stillsuit wearing vegan, but here in the soggy Northeast we worry more about flooding than drought.

    Even at that, the idea that a Holstein moo cow is carrying around a tank of almost 10 million liters of water is silly. That's a BOE for a 3300 Kilo adult Holstein at 3000 Water useage. Hell, 10 million liters here in the Northeast is a drop in our soggy w

  • People have been predicting for decades that we'll be using bioreactors (usually yeast or algae) to feed ourselves in the dystopian future. It might happen, but it's not going to until we're out of other options.

    Growing some bacteria in a bioreactor isn't that revolutionary. You can do it on your kitchen counter if you want to.

  • I realize that there's probably little functional difference, but I've got to say I find this about a million times more appealing than any protein extracted from insects.

  • Solar Foods says just 10 liters (2.1 gallons) of water is needed for every 1 kilogram (2.2 pounds) of Solein.

    Ok, ok. Thin air AND water! But that's it!

    If the electricity comes totally from renewables

    ..and electricity. But THAT'S IT, we swear!

    Isn't this just basically hydroponics?

  • ... from any other plant-based protein? "thin air" and "renewable electricity" sounds like green-washing, otherwise, truly, "process similar to brewing beer".

    Paul B.

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