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Have you found that the plastic straws that you often see when drinking outside have disappeared and have been replaced by paper straws and PLA straws? Because paper straws are soft and PLA is not heat-resistant, people want to break their heads to find more humane straws.

Some coffee is wordy, so it can't be worded any more. )

When I drank milk tea when I was a child, everyone liked coconut as an auxiliary ingredient for milk tea. Have you ever thought that coconut fruit can also be used to make straws? Recently, the coconut straw was developed by a team of academician Yu Shuhong of the University of Science and Technology of China.

Nowadays, most shops use paper straws. As a worker who works in the mood, afternoon tea can only be called the happiness of beating workers with a cup of sweet milk tea or a cup of fragrant coffee. The first two mouthfuls are still very happy, put it for a while, and then you will find that it is obviously a cup of pure liquid coffee but drink a solid taste, a veritable mouthful of paper, the happiness of beating workers is thus wiped out by this anti-human invention of paper straws.

The appearance of the coconut straw just saved the happiness of our workers. Academician Yu Shuhong's research team developed an "edible" bacterial cellulose-based straw with excellent performance through the strategy of biosynthesis of bacterial cellulose and compounding with seaweed extract sodium alginate. The researchers first pressed the bacterial cellulose into a film and then introduced a thin layer of sodium alginate into the surface of the film. The film coated with sodium alginate was rolled into a tube and then dipped into calcium lactate solution for cross-linking. Finally, after washing and drying, the "coconut straw" was born.

When it comes to the word "coconut", there is a sweet and sour taste in everyone's mind. This "coconut straw" may disappoint everyone, the researchers said, although the material is edible, but not delicious, can only be said to be a safe and edible straw. The strength, modulus and toughness of the straw are more than twice that of the paper straw, which means that under the same performance requirements, the "coconut straw" is thinner than the paper straw. In addition, it can be made in different colors. Moreover, the bacterial cellulose-based straw almost disappeared after being buried in the soil for 45 days and could be fully integrated into the soil after 60 days.

In the comment area, many netizens said that they couldn't wait for this "coconut straw" and hoped that it could be mass produced as soon as possible to replace the paper straw that caused high blood pressure as soon as it was used. Some people even said that it was dangerous to suck scraps of paper into the trachea.

Many netizens are so disgusted with paper straws that they even express their desire to let paper straws leave the food industry forever. It can be seen that paper straws are only environmentally friendly, but very anti-human. It can be seen that human joys and sorrows are the same in some ways.

The sharp weapon of milk tea was originally the straw, but with the emergence of the paper straw, the sharp weapon became a blunt one. Now, with the emergence of new materials, straws are expected to become a sharp weapon of milk tea again.

Photo: ScienceNet, Weibo

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