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#biodegradable

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On August 4, 2025, #Meat & #Livestock #Australia announced a $20 million research partnership with #TibaBiotech & the #NSW Government to pioneer a world-first #biodegradable #mRNA #vaccine for #footandmouthdisease (#FMD). While Australia remains FMD-free, this step was announced to safeguard against potential outbreaks that could cost the Australian economy up to $80 billion.

The vaccine, tested in Germany, uses mRNA technology to trigger an #immuneresponse in #cattle.

#auspol

#Okra and #Fenugreek Extracts Safely Remove #Microplastics From Water in New Texas Research

May 10, 2025

"The substances behind the slimy strings from okra and the gel from fenugreek seeds could trap microplastics better than a commonly used synthetic polymer.

"Texas researchers proposed in 2022 using these sticky #NaturalPolymers to clean up water. Now, they’ve found that okra and/or fenugreek extracts attracted and removed up to 90% of microplastics from #ocean water, #freshwater, and #groundwater.

"With funding from the U.S. Department of Energy, Rajani Srinivasan and colleagues at Tarleton State University found that the plant-based polymers from okra, fenugreek, and #tamarind stick to microplastics, clumping together and sinking for easy separation from water.

"In this next stage of the research, they have optimized the process for okra and fenugreek extracts and tested results in a variety of types of water.

"To extract the sticky plant polymers, the team soaked sliced okra pods and blended fenugreek seeds in separate containers of water overnight. Then, researchers removed the dissolved extracts from each solution and dried them into powders.

"Analyses published in the American Chemical Society journal showed that the powdered extracts contained #polysaccharides, which are natural polymers. Initial tests in pure water spiked with microplastics showed that:

- One gram of either powder in a quart (one liter) of water trapped microplastics the most effectively.
- Dried okra and fenugreek extracts removed 67% and 93%, respectively, of the plastic in an hour.
- A mixture of equal parts okra and fenugreek powder reached maximum removal efficiency (70%) within 30 minutes.
- The natural polymers performed significantly better than the synthetic, commercially available polyacrylamide polymer used in #wastewater treatment.

"Then the researchers tested the plant extracts on real microplastic-polluted water. They collected samples from waterbodies around Texas and brought them to the lab. The plant extract removal efficiency changed depending on the original water source.

"Okra worked best in ocean water (80%), fenugreek in groundwater (80-90%), and the 1:1 combination of okra and fenugreek in freshwater (77%).

"The researchers hypothesize that the natural polymers had different efficiencies because each water sample had different types, sizes and shapes of microplastics.

"Polyacrylamide, which is currently used to remove contaminants during wastewater treatment, has low toxicity, but its precursor #acrylamide is considered #toxic. Okra and fenugreek extracts could serve as #biodegradable and #nontoxic alternatives.

" 'Utilizing these plant-based extracts in water treatment will remove microplastics and other pollutants without introducing additional toxic substances to the treated water,' said Srinivasan in a media release, 'thus reducing long-term health risks to the population [and the environment].

"She had previously studied the use of food-grade plant extracts as non-toxic flocculants to remove textile-based pollutants from wastewater and thought, ‘Why not try microplastics?’"

Source:
goodnewsnetwork.org/plant-base

Good News Network · Plant-Based Filter Removes Up to 99.9% of Microplastics from WaterThe health of effects of ingesting microplastics are, predictably, not good, though the science is in its early stages.

Scientists in Japan have created a biodegradable plastic that completely dissolves in seawater within hours.

Unlike existing bioplastics, it leaves no microplastics or toxins behind.

The innovation could revolutionise marine packaging and fishing gear—two major contributors to ocean waste—and is already being tested for real-world use. #environment #plastic #biodegradable #pollution #news #japan #ocean #oceans

reuters.com/sustainability/cli

Ultra-light, thermally insulating and #biodegradable: Cellulose-based #aerogels are versatile. Empa researchers have succeeded in #3D printing the natural material into complex shapes that could one day serve as precision insulation in #microelectronics or as personalized #medical implants.
#MaterialScience #Bioengineering #sflorg
sflorg.com/2024/04/ms04042401.

www.sflorg.comAiry cellulose from a 3D printerA lot of potential applications in medicine

#Biodegradable #plastics may not be the solution to plastic #pollution many hoped for, with a University of Otago study showing they are still harmful to fish. Petroleum-derived #microplastics are known to impact #marine life, but little is known about the impact of biodegradable alternatives.
#Environmental #MarineBiology #sflorg
sflorg.com/2023/10/en10192301.

www.sflorg.comBiodegradable plastics still damaging to fishBiodegradable plastics may not be the silver bullet to plastic pollution

Meanwhile, in "a pox on all things plastic" news...

Researchers at Western have worked with industry partner CTK Bio Canada to develop a new biodegradable, hemp-based material that they say could serve as a sustainable substitute for product packaging needs.

Makes me wonder if there'll be just one thing that ends up replacing plastic or many?

(My guess is many.)

phys.org/news/2023-05-hemp-bas

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#biomaterials #engineering #sustainability #environment #biodegradable #plastic #science

Phys.orgNew hemp-based biomaterial to help with global microplastic pollution crisisBy Jeff Renaud