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Enzymes From Cow Stomach Contain Useful Microorganisms That Can Recycle Plastic

(Photo : Photo by Arbendra Pratap) Bacteria were discovered in rumen fluids, which is the biggest compartment of a ruminant s stomach. Ruminants rely on microorganisms to help break down their coarse plant diet. The researchers hypothesized that some microorganisms in a cow s rumen would be able to digest polyesters. Cow Diet (Photo : Pixabay) Cows eat cutin, a natural polyester generated by plants, as a result of their herbivorous diets. Being a synthetic polyester, PET has a chemical structure comparable to that of this natural material. According to corresponding author Doris Ribitsch, a senior scientist at the University of Natural Resources and Life Sciences in Vienna, cutin makes up most of the cuticle or waxy outer layer of plant cell walls. Thus, it can be found in abundance in the peels of tomatoes and apples, for example.

Claudia ribitschDoris ribitschLaura ribitschDavid levinMicrobiome researchLife sciencesUniversity of natural resourcesUniversity of manitoba department biosystems engineeringArbendra pratapDisrupted whenNew groupsGetty imagesNatural resourcesLive scienceBiological engineeringApplied microbiology

Microbes in Cow Stomachs May Help Our Plastic Problem

Microbes in Cow Stomachs May Help Our Plastic Problem
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Georg guebitzLife sciencesUniversity of natural resourcesNatural resourcesவாழ்க்கை அறிவியல்பல்கலைக்கழகம் ஆஃப் இயற்கை வளங்கள்இயற்கை வளங்கள்

Cows Have Hungry Stomach Microbes Capable of Breaking Down Some Plastics

Cows Have Hungry Stomach Microbes Capable of Breaking Down Some Plastics NICOLETTA LANESE, LIVESCIENCE 3 JULY 2021 Microbes fished from the stomachs of cows can gobble up certain kinds of plastic, including the polyethylene terephthalate (PET) used in soda bottles, food packaging, and synthetic fabrics. Scientists uncovered these microbes in liquid that was drawn from the rumen, the largest compartment of a ruminant s stomach; ruminants include hooved animals like cattle and sheep, which rely on microorganisms to help break down their diet of coarse vegetation. The rumen acts as an incubator for these microbes, which either digest or ferment foods consumed by a cow or other ruminant, according to the University of Minnesota.

Doris ribitschDavid levinLife sciencesUniversity of minnesotaUniversity of natural resourcesUniversity of manitoba department biosystems engineeringNatural resourcesApplied microbiologyManitoba departmentBiosystems engineeringடேவிட் லெவின்வாழ்க்கை அறிவியல்பல்கலைக்கழகம் ஆஃப் மினசோட்டாபல்கலைக்கழகம் ஆஃப் இயற்கை வளங்கள்இயற்கை வளங்கள்பயன்படுத்தப்பட்டது நுண்ணுயிரியல்

Common plastics can be broken down by enzymes found in cow stomachs

Thomas Winz/Getty Images Cows have stomachs with four compartments and the bacteria in one of them – the rumen – produce enzymes which can break down some widely used plastics. The discovery could lead to new technology for processing such materials after use. Georg Guebitz at the University of Natural Resources and Life Sciences in Austria and his colleagues visited a local slaughterhouse and collected samples of the liquid from the rumen of a young ox fed on alpine pastures. They found that the liquid contained many types of enzymes, including cutinases. The team demonstrated that these enzymes could break down three types of widely used polyesters – namely polyethylene terephthalate (PET), polybutylene adipate terephthalate (PBAT) and polyethylene furanoate (PEF), which are often used to make products including bottles, textiles and bags. The enzymes degraded these substances within one to three days when kept at a temperature of about 40°C to match that of a cow’s sto

Thomas winz gettyGeorg guebitzKrista charlesRamani narayan at michigan state universityLife sciencesUniversity of natural resourcesNatural resourcesRamani narayanMichigan state universityகிறிஸ்டா சார்லஸ்வாழ்க்கை அறிவியல்பல்கலைக்கழகம் ஆஃப் இயற்கை வளங்கள்இயற்கை வளங்கள்ரமணி நாராயண்மிச்சிகன் நிலை பல்கலைக்கழகம்

Microbes in cow stomachs can break down plastic

E-Mail Plastic is notoriously hard to break down, but researchers in Austria have found that bacteria from a cow s rumen - one of the four compartments of its stomach - can digest certain types of the ubiquitous material, representing a sustainable way to reduce plastic litter. The scientists suspected such bacteria might be useful since cow diets already contain natural plant polyesters. A huge microbial community lives in the rumen reticulum and is responsible for the digestion of food in the animals, said Dr Doris Ribitsch, of the University of Natural Resources and Life Sciences in Vienna, so we suspected that some biological activities could also be used for polyester hydrolysis, a type of chemical reaction that results in decomposition. In other words, these microorganisms can already break down similar materials, so the study authors thought they might be able to break down plastics as well.

Doris ribitschLife sciencesUniversity of natural resourcesNatural resourcesவாழ்க்கை அறிவியல்பல்கலைக்கழகம் ஆஃப் இயற்கை வளங்கள்இயற்கை வளங்கள்