Science shows these are the most horrible scents in the world

Few people expect with such brilliant beauty, but hidden in it is the most unpleasant smell in the world.

If someone asked you, what is the most terrible smell in the world, what would you say?

Is that the smell of rotten eggs, the smell of rotting animals? According to scientists, the most terrible odors are based on their basic molecular structure.

Research by the University of California, Berkeley in 2007 looked at 1,500 properties of 150 different molecules to establish the relationship between the “pleasantness” of an odor and its physicochemical properties.

Accordingly, molecular weight and electron density are in fact closely linked to how we perceive the properties of a scent. Or to put it simply, larger, heavier molecules tend to be associated with odors, while smaller and lighter molecules are more pleasant.

Scientists have pointed out a few scary scents, which can make you “faint on the spot” because of its strong smell.

Science shows these are the most horrible scents in the world

Scientists at the University of Oxford discovered clouds on Uranus containing hydrogen sulfide (H 2 S). This is a compound that smells like rotten eggs in concentrations of 3-5 parts per million.

The discovery of clouds on Uranus that smell like rotten eggs helps us better understand the formation of this planet.

Science shows these are the most horrible scents in the world

Not only has a thorny appearance, but durian also makes thousands of people hate when it is said to be the “strongest” in the world.

Dr. Martin Steinhaus of the Research Center for Food Chemistry in Germany and his colleagues found that up to 19 odorant compounds were identified in the scent of durian. The strongest odor compounds were the scent of gym socks, sewage, and rotting meat.

Along with that, Singapore experts have identified a group of methionine gamma lyases genes – which are activated when the fruit is ripe, creating the “unpleasant” smell unique to durian fruit.

According to Mr. Bin Tean Teh, deputy director of the National Cancer Center Singapore (NCC) shared: “The smell of durian is described as a blend of the sulfur smell of onions, sweet fruit and strong spices. The key in durian smell cannot fail to mention volatile sulfur compounds (VSC), the smell of rotten eggs, decomposing onions and chives”.

Perhaps it is because of the mixture of so many scents that durian becomes a fruit that causes many people discomfort.

Science shows these are the most horrible scents in the world

Found a lot in the tropical forests of Indonesia, the King flower or corpse flower is famous for its smell… rotten as the name suggests.

Rafflesia arnoldii is a parasitic species, growing as a creeper, without leaves, unable to photosynthesize and must rely on nutrients from the host plant – usually the Tetrastigma vine.

Although they smell terrible to humans, they are extremely attractive to insects, helping to pollinate plants.

Fortunately for us, these flowers only live for about a week (5-7 days old) and then dry up and die.

Science shows these are the most horrible scents in the world

Vieux Boulogne is one of the delicious cheeses, made from pure cow’s milk in the Pas-de-Calais territory, but according to scientists at Cranfield University, Vieux Boulogne is ranked among the worst in the world.

According to experts, the reason why Vieux Boulogne is so “smelly” is because the rind is soaked in beer for up to 9 weeks. The particularly pungent odor is produced by the fermentation reaction of the beer with the enzymes in the cheese.

Science shows these are the most horrible scents in the world

We’re sure everyone is terrified of the smell of “delicate waste” or feces. But do you believe there is a waste that has existed for 700 years and still has a strong smell?

Archaeologists have discovered a medieval toilet in the Danish city of Odense dating back to the 14th century, and were more surprised that these delicate waste containers still smelled until the time of excavation. .

Science shows these are the most horrible scents in the world

It looks cute on the outside, but this anteater really has a terrible smell.

It is proven that this species stinks more than the skunk by 5-7 times. Anteaters emit such an unpleasant odor to prevent predators from getting close.