PET hydrolysis enzymes are important in the recycling process for various uses. In various industries, this material is used to produce a variety of plastics. Recycling polyethylene terephthalate in various industries should be done to reduce the damage of this material to the environment. Cutinase, PETase, lipase, and esterase enzymes are used in the hydrolysis of polyethylene terephthalate. In the continuation of this PETROPROVIDERS article, join us to introduce you to PET hydrolysis enzymes.

What is polyethylene terephthalate?

Polyethylene terephthalate is the most popular polyester resin that has many diverse and interesting applications in various industries. This material is used as a raw material in the manufacture of various plastics; For example, PET is used to make plastic bottles. Let’s say what a pet is! PET stands for polyethylene terephthalate.

In industry, this substance is known by the acronym PET. Iran Polyethylene terephthalate is one of the most popular chemicals in Iran that has various applications. This material has unique physical and chemical properties; Some of these properties are:

  • High thermal resistance
  • Moisture resistance
  • Resistance to electricity
  • High ductility
  • High boiling point
  • ..
    For this reason, the use of this substance in industries is very diverse.

It should be noted that in the use and production of PET, recycling operations are very important. PET recycling is usually done in different ways, the most important and best of which is the enzymatic recycling of polyethylene terephthalate. In this article, we want to review the most important PET hydrolysis enzymes.

The most important applications of polyethylene terephthalate

PET applications

PET applications

The applications of polyethylene terephthalate are very diverse! This material is used in various industries to produce a variety of durable plastics. One of the most important plastics that can be made using PET is polyethylene terephthalate bottles. This substance, which is not dangerous for human health and the environment, can also be dangerous in some cases! If the environmental pollution is excessive.

In addition, there are a wide variety of applications for PET. Some of these applications are:

  1. Use of polyethylene terephthalate in the production of impact-resistant products
  2. Use PET in the production of various parts in the car
  3. Use of this material in the production of aircraft parts
  4. Use PET to produce building insulation
  5. Use of polyethylene terephthalate in the production of various electrical components
  6. Etc…

We see that the applications of this material are very diverse. If you are also a consumer of this substance, you can ask us for the best Iran polyethylene terephthalate. Contact us now so that our experts can give you the necessary advice to choose the best grade of polyethylene terephthalate.

Why should we use the hydrolysis method to recycle PET?

I said that there are different ways to recycle polyethylene terephthalate. The best way to do this is to use an enzymatic method to recycle polyethylene terephthalate. In this method, using natural and artificial enzymes, polyethylene terephthalate polymer parts are converted into monomeric parts.

This recycling can be performed in different conditions using different laboratory methods. It should be noted that if other materials are used in the recycling process of polyethylene terephthalate, it may increase the efficiency of the reactions. In general, it is better to use the enzymatic method to recycle polyethylene terephthalate.

In this method, PET hydrolysis enzymes are present, which will increase the speed and efficiency of polyethylene terephthalate recycling. It should be noted that these enzymes can be used both naturally and artificially.

For example, one of the most important PET hydrolysis enzymes is lipase. This enzyme is also present in the human and animal bodies, which breaks down lipids into their structural components. The reason for using this enzyme to recycle polyethylene terephthalate is to eliminate lipid bonds between PET monomers. In the following, we want to examine the most important PET hydrolysis enzymes in detail.

A closer look at PET hydrolysis enzymes!

important PET hydrolysis enzymes

important PET hydrolysis enzymes

The use of the lipase enzyme to recycle PET hydrolysis has been first reported by several researchers. This enzyme, which is found in Pseudomonas, has been reported by a group of scientists. In addition to its good performance in PET hydrolysis, this enzyme is found in abundance and there is no need to worry about its deficiency!

But one drawback is that in some stages of the reaction, there are limitations to it. If this enzyme is used alone, it will have very little efficiency for the initial hydrolysis of polyethylene terephthalate. Now, if two or more enzymes are used, the recycling efficiency of polyethylene terephthalate can be increased.

There have not been many studies on enzyme doses or ambient temperature and pH conditions. Lipase is hydrophobic and therefore can be used to recycle polyethylene terephthalate in non-aqueous environments.

Cutinase is one of the most important PET hydrolysis enzymes!

As the name implies, this enzyme has similar activity to quinine. This means that high molecular weight substances such as quinine can be found in the structure of these enzymes. The use of this enzyme has been reported in various experiments. In addition to polyethylene terephthalate, this enzyme can also be used for polylactic acid.

Enzyme esterase is another enzyme used in PET hydrolysis. This enzyme directly destroys the ester bonds between polyethylene terephthalate monomers. This enzyme is present in the body of living organisms and can be produced from them.

In some experiments, this enzyme was used to hydrolyze PET. The interesting thing about using this enzyme is that in the process of PET recycling, it will increase calcium ions. If the test conditions are not properly adjusted when using the esterase enzyme, it will cause recombinant esterase in the process of hydrolysis of polyethylene terephthalate.

We do not want this! For this reason, it is best to consult with our experts at PETROPROVIDERS before performing the reaction, hydrolyzing PET using this enzyme.

PETase enzyme as another enzyme for hydrolysis of polyethylene terephthalate

This enzyme, like the second enzyme, is one of the most special enzymes with special activity in the process of recycling polyethylene terephthalate! Scientists first studied the crystal structure of this enzyme; In these studies, it was found that the structure of this enzyme is much wider than the cutinase enzyme. For this reason, it can be called a heavy substrate.

Another special feature of this enzyme is its vital properties. This enzyme is commonly found in bacteria; That’s why extracting it is a bit costly and difficult. Unlike esterase and PETase, they can not be used mainly in industry.

But the great advantage of this enzyme is that a small amount of it will significantly increase the reaction efficiency. This is why this enzyme is so popular among PET hydrolysis enzymes!

PET hydrolysis enzymes schema

PET hydrolysis enzymes schema

The most important point about PET recycling

The most important point in recycling polyethylene terephthalate is choosing the best enzyme to recycle the desired grade of polyethylene terephthalate. This enzyme can be lipase or esterase and even PETase! But what matters is how we use it in the pet recycling process. One of the main reasons for the use of enzymes in pet recycling is that these materials can perform reactions with extraordinary speed! In addition, they can increase the amount of recycling worldwide.

It should be noted that if mass recyclers use this method, in addition to reducing costs, they will increase recycling efficiency. In countries such as France and Japan, terephthalate is recycled using enzymatic recycling methods. This substance, which can be recycled in different ways under different conditions, will be recycled at best-using enzymes.

A summary of the study of PET hydrolysis enzymes

In this article, we looked at PET hydrolysis enzymes. In a previous article in PETROPROVIDERS, we made a general reference to the hydrolysis enzymes of polyethylene terephthalate. In this article, we examined these enzymes and their properties in more detail. We hope you find this article useful!

In general, PET recycling is one of the most important uses of this material. These items are FDA approved, but it is best to recycle them after use. Also, note that it is better not to use PET bottles for more than 6 months! These bottles are not harmful to human health; But because they are plastic, they can make a small difference in the taste and smell of water and beverages.

These bottles can also easily increase the bacterial risks in the drink. So it is better to buy Iran polyethylene terephthalate with the best quality from us and update the products of PET bottles!

What do you think about PET hydrolysis enzymes? Can the recycling of this material in bulk be done well-using hydrolysis methods? Can this material be easily recycled and used in various applications? In the comments section, you can ask your questions from our experts.


What are the most important PET hydrolysis enzymes?

The most important PET hydrolysis enzymes are Cutinase, Lipase, Esterase, and PETase.

What is polyethylene terephthalate?

Polyethylene terephthalate or PET is a type of polyester resin that has various applications in various industries.

Why should we recycle PET?

PET is a type of polyester resin that pollutes the environment; It is better to recycle this material!

PET is a type of polyester resin that pollutes the environment; It is better to recycle this material!

Plastic materials contain chemical raw materials; It is better to use plastics once.

What can we do to buy the best Iran polyethylene terephthalate?

To buy Iran Polyethylene terephthalate with the highest quality, contact us now.