SCI The rice of the sea: how a tiny grain could change the way humanity eats

Melodi

Disaster Cat
For once, an article about a new potential food source that makes sense, may taste good, and actually might help restore lost ecosystems, I'd be willing to eat this one.
The rice of the sea: how a tiny grain could change the way humanity eats
Ángel León made his name serving innovative seafood. But then he discovered something in the seagrass that could transform our understanding of the sea itself – as a vast garden
Chef Ángel León holds a strand of Zostera marina, or eelgrass

Chef Ángel León found eelgrass seeds have 50% more protein than rice – and the plant stores carbon far faster than a rainforest. Photograph: Álvaro Fernández Prieto/Aponiente

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About this content
Ashifa Kassam in Madrid
@ashifa_k
Fri 9 Apr 2021 06.00 BST



Growing up in southern Spain, Ángel León paid little attention to the meadows of seagrass that fringed the turquoise waters near his home, their slender blades grazing him as he swam in the Bay of Cádiz.

It was only decades later – as he was fast becoming known as one of the country’s most innovative chefs – that he noticed something he had missed in previous encounters with Zostera marina: a clutch of tiny green grains clinging to the base of the eelgrass.

His culinary instincts, honed over years in the kitchen of his restaurant Aponiente, kicked in. Could this marine grain be edible?


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Lab tests hinted at its tremendous potential: gluten-free, high in omega-6 and -9 fatty acids, and contains 50% more protein than rice per grain, according to Aponiente’s research. And all of it growing without freshwater or fertiliser.

The find has set the chef, whose restaurant won its third Michelin star in 2017, on a mission to recast the common eelgrass as a potential superfood, albeit one whose singular lifecycle could have far-reaching consequences. “In a world that is three-quarters water, it could fundamentally transform how we see oceans,” says León. “This could be the beginning of a new concept of understanding the sea as a garden.

It’s a sweeping statement that would raise eyebrows from anyone else. But León, known across Spain as el Chef del Mar(the chef of the sea), has long pushed the boundaries of seafood, fashioning chorizos out of discarded fish parts and serving sea-grown versions of tomatoes and pears at his restaurant near the Bay of Cádiz.
Minuscule grains nestled in a strand of eelgrass.

The tiny grains within the eelgrass. The plant is capable of capturing carbon 35 times faster than tropical rainforests. Photograph: Álvaro Fernández Prieto/Aponiente


“When I started Aponiente 12 years ago, my goal was to open a restaurant that served everything that has no value in the sea,” he says. “The first years were awful because nobody understood why I was serving customers produce that nobody wanted.”

Still, he pushed forward with his “cuisine of the unknown seas”. His efforts to bring little-known marine species to the fore were recognised in 2010 with his first Michelin star. By the time the restaurant earned its third star, León had become a fixture on Spain’s gastronomy scene: a trailblazing chef determined to redefine how we treat the sea.
What León and his team refer to as “marine grain” expands on this, in one of his most ambitious projects to date. After stumbling across the grain in 2017, León began looking for any mention of Zostera marina being used as food. He finally found an article from 1973 in the journal Science on how it was an important part of the diet of the Seri, an Indigenous people living on the Gulf of California in Sonora, Mexico, and the only known case of a grain from the sea being used as a human food source.

Next came the question of whether the perennial plant could be cultivated. In the Bay of Cádiz, the once-abundant plant had been reduced to an area of just four sq metres, echoing a decline seen around the world as seagrass meadows reel from increased human activity along coastlines and steadily rising water temperatures.

Working with a team at the University of Cádiz and researchers from the regional government, a pilot project was launched to adapt three small areas across a third of a hectare (0.75 acres) of salt marshes into what León calls a “marine garden”.
It was not until 18 months later – after the plants had produced grains – that León steeled himself for the ultimate test, said Juan Martín, Aponiente’s environmental manager.
a hand holds strands of eelgrass with the sea in the background

Salt marshes near Cádiz were used to create a ‘marine garden’ where the eelgrass seeds could be sown. Photograph: Álvaro Fernández Prieto/Aponiente
“Ángel came to me, his tone very serious, and said: ‘Juan, I would like to have some grains because I have no idea how it tastes. Imagine if it doesn’t taste good,’” says Martín. “It’s incredible. He threw himself into it blindly, invested his own money, and he had never even tried this marine grain.”

León put the grain through a battery of recipes, grinding it to make flour for bread and pasta and steeping it in flavours to mimic Spain’s classic rice dishes.

“It’s interesting. When you eat it with the husk, similar to brown rice, it has a hint of the sea at the end,” says León. “But without the husk, you don’t taste the sea.” He found that the grain absorbed flavour well, taking two minutes longer to cook than rice and softening if overcooked.
In the marine garden, León and his team were watching as the plant lived up to its reputation as an architect of ecosystems: transforming the abandoned salt marsh into a flourishing habitat teeming with life, from seahorses to scallops.

The plant’s impact could stretch much further. Capable of capturing carbon 35 times faster than tropical rainforests and described by the WWF as an “incredible tool” in fighting the climate crisis, seagrass absorbs 10% of the ocean’s carbon annually despite covering just 0.2% of the seabed.

News of what León and his team were up to soon began making waves around the world. “When I first heard of it, I was going ‘Wow, this is very interesting,’” says Robert Orth, a professor at the Virginia Institute of Marine Science, who has spent more than six decades studying seagrass. “I don’t know of anyone that has attempted to do what this chef has done.”
We’ve opened a window. It's a new way to feed ourselves
According to Orth, seagrass has been used as insulation for houses, roofing material and even for packing seafood, but never cultivated as food. It is an initiative riddled with challenges. Wild seagrass meadows have been dying off at an alarming rate in recent decades, while few researchers have managed to successfully transplant and grow seagrass, he says.

In southern Spain, however, the team’s first marine garden suggests potential average harvests could be about 3.5 tonnes a hectare. While the yield is about a third of what one could achieve with rice, León points to the potential for low-cost and environmentally friendly cultivation. “If nature gifts you with 3,500kg without doing anything – no antibiotics, no fertiliser, just seawater and movement – then we have a project that suggests one can cultivate marine grain.”
a pile of marine grain

A pilot project was successful in cultivating seagrass and obtaining grains that Ángel León then tried in different recipes. Photograph: www.MAPDIGITAL.es

The push is now on to scale up the project, adapting as much as five hectares of salt marshes into areas for cultivating eelgrass. Every success is carefully tracked, in hopes of better understanding the conditions – from water temperature to salinity – that the plant needs to thrive.
While it is likely to be years before the grain becomes a staple at Aponiente, León’s voice rises with excitement as he considers the transformative possibility of Zostera marina’s minuscule, long-overlooked grain – and its reliance on only seawater for irrigation. “In the end, it’s like everything,” he says. “If you respect the areas in the sea where this grain is being grown, it would ensure humans take care of it. It means humans would defend it.”

He and his team envision a global reach for their project, paving the way for people to harness the plant’s potential to boost aquatic ecosystems, feed populations and fight the climate crisis. “We’ve opened a window,” says León. “I believe it’s a new way to feed ourselves.”
 

Seeker22

Has No Life - Lives on TB
Something else I can add Cajun Spice to! I wonder what the harvest process looks like, getting all those grains out of the leaves? Once again, Indigenous wisdom amazes me.
 

kiawahman

Contributing Member
"high in omega-6 and -9 fatty acids"

No thank you. Omega 3 is best for you, 6 is OK in moderation, but omega 9 is already found in high levels of many processed foods, plus it is produced by your own body. Having too much 6 and 9 in relation to omega 3 can do more harm than good.

More stupid science from the people who bring you the food pyramid chart.
 

Freeholder

This too shall pass.
"high in omega-6 and -9 fatty acids"

No thank you. Omega 3 is best for you, 6 is OK in moderation, but omega 9 is already found in high levels of many processed foods, plus it is produced by your own body. Having too much 6 and 9 in relation to omega 3 can do more harm than good.

More stupid science from the people who bring you the food pyramid chart.

True, but eaten along with fish that are high in Omega 3, they could balance each other out.

Kathleen
 

Melodi

Disaster Cat
Even most natural foods (as in not ultra-highly processed) have both good and bad aspects to them and not every food is good for every person.

What I like about this story isn't just the fact that new and actually edible food source may have been rediscovered, but that the process of growing it in vast amounts might actually restore a fading ecosystem that was in the process of failing.

That it has been used as a food in the past, the taste reports so far are favorable and it looks reasonably healthy at least so far.

Now I personally would probably stick to eating the more refined version at first because of my shellfish allergy, the "brown rice" version might be OK and it might not. But since there isn't any actual fish in it, I suspect that hulled and made into flour/pasta/bread would be fine, provided it tastes good.
 

jed turtle

a brother in the Lord
"high in omega-6 and -9 fatty acids"

No thank you. Omega 3 is best for you, 6 is OK in moderation, but omega 9 is already found in high levels of many processed foods, plus it is produced by your own body. Having too much 6 and 9 in relation to omega 3 can do more harm than good.

More stupid science from the people who bring you the food pyramid chart.
Yes too low in omega 3s but mixed with an abundance of food rich in omega 3s would fix that little “problem”. The protein part is the important message here. How “complete“ in amino acids are the proteins?
 

ShadowMan

Designated Grumpy Old Fart
It is amazing how little of God's abundance we actually take advantage of. How people can seriously starve to death because they don't know what is safe and edible. We are totally dependent on so few plants in the overall scheme of things.

I read a book back in the day called "No Blade of Grass" about a virus that killed all the grasses on Earth. No wheat, no rice, no corn, no grains at all! Anything related to grass died and the world starved. The other book(s) I read were Euell Gibbons' "Stalking the Blue Eyed Scallop" and others in the series.

The interesting thing is that a lot "wild forage plants" are actually more nutritious than vegetables we commonly rely on today. I always try to identify every edible plant on and around my property. Right now I'm experimenting with processing local Acorns as a food source.
 

bw

Fringe Ranger
with all the toxins and raw sewage dumped into the sea,

I would stay away from this

fukushima comes to mind

Your point is well taken, but not the whole story. Fish concentrate toxins because they form a pyramid of consumers. Eelgrass is the absolute bottom of the food chain. If it has no particular affinity for any toxin, it has to be about as safe as you can get.
 

tiredude

Veteran Member
Yes too low in omega 3s but mixed with an abundance of food rich in omega 3s would fix that little “problem”. The protein part is the important message here. How “complete“ in amino acids are the proteins?
ill eat it if Im starving......
 

AlfaMan

Has No Life - Lives on TB
I'm glad you posted this article. I read it in the Guardian this afternoon and it fascinated me. A new food source that requires not much of anything to grow other than water. With the amounts harvested already from the small test plots; this could be scaled up and feed millions for not much space at all.
Love to hear about food, especially new food!
 

packyderms_wife

Neither here nor there.
i don't understand that.

in no way is it shellfish. it comes from the sea, as do shellfish, but it is not shellfish.

It feeds on things that eat shellfish large, etc, same like seaweed. If you have a shellfish allergy do not eat anything with kerogenan (sp? I’m on my tablet so no autocorrect). I’ll have to post a link later as to why.
 

hunybee

Veteran Member
It feeds on things that eat shellfish large, etc, same like seaweed. If you have a shellfish allergy do not eat anything with kerogenan (sp? I’m on my tablet so no autocorrect). I’ll have to post a link later as to why.


wait...what?

the eelgrass does not feed on things that eat shellfish. it is a seagrass. seaweed is macro algae.

carrageenan is a chemical compound from seaweed. one can have an allergy to this. one can also have an allergy to shellfish. that does not mean that if one has an allergy to shellfish, then they are allergic to carrageenan.

the main concern that is often presented as a reason not to eat seaweed in restaurants is that it is too difficult to to keep the shellfish (or other fish one may be allergic to) separate during the processing and cooking of the seaweed.

this is basically the same as any other allergen. it is the cross contamination factor that is the issue, not the food itself.

for example, one may be allergic to peanuts, but not to walnuts. because they are mostly processed together, it is impossible to avoid cross contamination, unless one finds a manufacturer that only processes walnuts. then, the walnuts can be consumed with no problems.

depending on how severe the allergy, SOME doctors tells their patients to avoid any and all foods of any sort from the sea. again, depending on how severe the allergy. others are able to eat other forms of seafood with no issue
 

Melodi

Disaster Cat
I will ask Nightwolf to look into this, personally, as someone with a serious shell-fish allergy I thought that avoiding the version with the hulls on it would probably be safe enough but I can have him check.

The hulls would be in some contact with the shellfish but with the hulls removed it is probably safe but I'll see what he can find if he has the time to do some research on it.

I mean I wouldn't have thought of "bugs" as a cross-reaction but they are "shelled bugs" and are close enough to "shelled fish" to bring on reactions.

In fact, the NHS just put out a warning on ground coffee because with the coffee shortages a lot of third-world producers don't take the time to sort the cockroaches out of the ground coffee and just grind them up along with the beans.

There have been a number of people in the UK rushed to the ER with anaphylactic reactions from the hidden cockroaches in the ground coffee!

They are telling people with shellfish allergies to buy beans and get a grinder - which is pretty much what we do anyway but it was good to know for prep reasons. I won't buy any more backup instant coffee.
 
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