Monday, June 17, 2024

This award-winning substitute for Styrofoam packaging is made from mushrooms

A project initiated by students at Guadalajara’s ITESO University won out among 1,000 competitors for the fourth small-business grant awarded annually by FedEx México.

PAPEL, Laboratorio de Ideas received 475,000 pesos (US $24,700) for their creation of a substitute for expanded polystyrene foam packaging material with excellent performance characteristics such as impact absorption, low density, resistance to fire and water and good thermal, acoustic and electrical insulating properties

“Our substitute,” commented representatives of the PAPEL team, “is based on a process with no carbon footprint. On top of that, it’s 100% biodegradable and useful as compost. We hope it will become an ecological alternative to Styrofoam for packaging, and will help reduce global warming.”

FedEx hopes the prize will help PAPEL to move forward toward production and eventually reduce the amount of polystyrene foam — which is highly toxic — now used as packaging material in Mexico: over 32,000 tonnes per year, according to the UNAM Foundation.

To learn more about the company that is producing this ecological Styrofoam substitute, I contacted PAPEL and asked if I could pay them a visit. They kindly invited me to their facilities, which are located at the west end of Guadalajara.

A lampshade: mushroom shaped and mushroom grown.
A lampshade: mushroom shaped and mushroom grown.

Upon arrival, I found myself at the door of a company called Radial, not PAPEL. When the door opened, I was warmly welcomed by Ricardo Muttio, Amador Duarte and Rodrigo Martín, who explained to me that they were long-time members of the PAPEL Idea Lab and now they had turned one of those ideas into a small company called Radial Biomateriales.

“Even though most of us are into design and architecture,” Rodrigo Martín told me, “our projects at PAPEL have always been environmentally friendly, for example rainwater catchment and composting. One of those projects revolved around growing mushrooms at home.

“Well, after working with these little mushroom farms for a while, we discovered that changes had occurred at the bottoms of the flowerpots in which we had been growing the mushrooms. Everything that was left in there had solidified into a resilient mass, which had taken on the shape of the inside of the pot as if it had come out of a mold. As architects and designers, we found this very interesting and we decided to focus on biomaterials.”

The team found that two big companies in the United States have been making things out of fungus-based biomaterials for 10 years.

“That encouraged us,” continued Martín, “but I should mention that we are not only interested in making biomaterial to substitute for Styrofoam, but we’re also working on mushroom-based substitutes for wood and for leather.

“To us it looks like the world has passed through stages as far as building material goes. We had the Stone Age, the Iron Age, the Plastic Age and now we are entering the era of biomanufacturing. Instead of big factories using up great quantities of oil, of energy, we are creating a paradigm of using living organisms to do the job for us.

Amador Duarte demonstrates substitutes for Styrofoam and wood.
Amador Duarte demonstrates substitutes for Styrofoam and wood.

“We are doing it with mushrooms, but other people are using algae, bacteria, yeasts, collagen: many living organisms. They’re even producing lab-grown hamburger meat and skin substitutes. Biotechnology is going in this direction and we decided to start a Mexican company here in Guadalajara to make these things.”

The researchers showed me several kinds of packaging materials with different textures, including one that was soft and fuzzy to the touch, a natural characteristic of the mushroom that was used. Their wood substitute, instead, was hard but also lightweight.

“It’s based on sawdust and you can work it just like wood,” they told us. What surprised me was their “mushroom leather.” It was tough, flexible and soft. “You can dye it or stamp a form into it,” they said, ”and it’s almost entirely mushroom. Instead of feeding a cow for two years, you can grow your leather in 20 days.”

“OK,” I asked my hosts. “How does all this work? What is the mushroom doing?”

“It’s all in the roots,” replied Amador Duarte. “The mushroom is just the fruit of something growing underground. That something is called mycelium, which looks like a network of roots and it’s this mycelium which solidifies the material. We take farm or industrial residue like straw, sawdust, corn husks or agave bagasse, grind it up and let the mycelium turn it into a solid mass.

“So we are using biology to transform waste at a far lower cost than making things out of petroleum. This means a smaller energy footprint and a biodegradable product. You unpack your new fridge, break up the packaging material with your own hands and throw it into your garden or sprinkle it into your flowerpots and it turns straight into excellent compost.”

In its natural cycle, the mycelium produces this Lingzhi mushroom.
In its natural cycle, the mycelium produces this Lingzhi mushroom.

The founders of Radial began their research as students of design, business management and architecture, “We arrived at ITESO with no interest in biology and chemistry, and now, all of a sudden, here we are wearing lab aprons and face masks, bent over trays of fungi, behaving like biologists and botanists.”

This gave me pause for thought. It was my generation that happily filled our planet’s garbage dumps and oceans with polystyrene foam, a poisonous substance that won’t break down for hundreds or thousands of years, that will continue all that time to find its way into the bellies of fish, fowl, animals and people.

We did it without thinking as we tossed those wonderfully insulating coffee cups into the trash, blissfully ignorant of their impact on the environment.

Many of those of my generation are so set in their ways that no ecological message will ever get through to them, but their children go to school and at all levels of schooling, that message of concern about the environment is getting through, raising awareness, as the Radial researchers demonstrated to me.

This awareness is deviating the new generation from the routines and ruts in which so many of us born in the 20th century may be stuck.

There seems to be hope after all.

[soliloquy id="82679"]

The writer has lived near Guadalajara, Jalisco, for more than 30 years and is the author of A Guide to West Mexico’s Guachimontones and Surrounding Area and co-author of Outdoors in Western Mexico. More of his writing can be found on his website.

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