Researchers Pinpoint the Genes Behind the Durian's Foul Stench

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iStock

Durian is a popular fruit in parts of southeast Asia. It's also known for having the most putrid, off-putting odor of any item sold in the produce section. Even fans of durian know why the fruit gets a bad rap, but what exactly causes its divisive scent is less obvious. Determined to find the answer, a team of researchers funded by "a group of anonymous durian lovers" mapped the fruit's genome, as reported by the BBC.

The study, published in the journal Nature Genetics [PDF], contains data from the first-ever complete genetic mapping of a durian fruit. It confirms that durian's excess stinkiness comes from sulfur, a chemical element whose scent is often compared to that of rotten eggs.

Analysis of the fruit's chemical makeup has been done in the past, so the idea that sulfur is a major contributor to its signature smell is nothing new. What is new is the identification of the specific class of sulfur-producing genes. These genes pump out sulfur at a "turbocharged" rate, which explains why the stench is powerful enough to have durian banned in some public areas. It may seem like the smell is a defense mechanism to ward off predators, but the study authors write that it's meant to have the opposite effect. According to the paper, "it is possible that linking odor and ripening may provide an evolutionary advantage for durian in facilitating fruit dispersal." In other words, the scent attracts hungry primates that help spread the seeds of ripe durian fruits by consuming them.

The revelation opens the door to genetically modified durian that are tweaked to produce less sulfur and therefore have a milder taste and smell. But such a product would likely inspire outrage from the food's passionate fans. While the flavor profile has been compared to rotten garbage and dead animal meat, it's also been praised for its "overtones of hazelnut, apricot, caramelized banana, and egg custard" by those who appreciate its unique character.

[h/t BBC]

No Joe: The Time Coffee Was Banned in Prussia

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iStock.com/NickS

In the late 18th century, Prussia's King Frederick the Great (officially Frederick II) blacklisted coffee and encouraged his royal subjects to drink something far more wholesome—beer. According to William Harrison Ukers's classic 1922 book All About Coffee, Frederick issued this decree on September 13, 1777:

"It is disgusting to notice the increase in the quantity of coffee used by my subjects, and the amount of money that goes out of the country in consequence. Everybody is using coffee. If possible, this must be prevented. My people must drink beer. His Majesty was brought up on beer, and so were his ancestors, and his officers. Many battles have been fought and won by soldiers nourished on beer; and the King does not believe that coffee-drinking soldiers can be depended upon to endure hardship or to beat his enemies in case of the occurrence of another war."

Though the authenticity of the above quotation cannot be confirmed, it certainly jibes with King Freddie's other opinions on the matter, according to Robert Liberles, a scholar of German-Jewish history. In a 1779 letter, Frederick wrote, "It is despicable to see how extensive the consumption of coffee is … if this is limited a bit, people will have to get used to beer again … His Royal Majesty was raised eating beer-soup, so these people can also be brought up nurtured with beer-soup. This is much healthier than coffee."

So Old Fritz, as he was called, loved beer. But why was he so opposed to coffee?

For one, Frederick was terrified that excessive imports could ruin his kingdom's economy, and he much preferred to restrict commerce than engage in trade. Since coffee, unlike beer, was brought in from across the border, Frederick regularly griped that "at least 700,000 thaler leave the country annually just for coffee"—money, he believed, that could be funneled into well-taxed Prussian businesses instead.

In other words, into Fritz's own pockets.

To redirect the people's spending patterns, Frederick ordered a number of steep restrictions, demanding that coffee roasters obtain a license from the government. This sounds like a reasonable regulation until you learn that Frederick summarily rejected nearly all of the applications, granting exceptions only to people who were already cozy with his court.

If that sounds elitist, it was. Frederick was adamant about keeping coffee out of the hands and mouths of poor people, writing, "this foreign product [has] extended into the lowest classes of human society and caused great contraband activities." To stop them, he hired approximately 400 disabled soldiers to work as coffee spies, or "sniffers," to roam city streets "following the smell of roasting coffee whenever detected, in order to seek out those who might be found without roasting permits," Ukers writes.

But none of these tactics worked. Rather, they just increased coffee smuggling and exacerbated the "contraband activities" that Frederick claimed he was trying to prevent in the first place. So shortly after the king died in 1786, many of these restrictions were lifted, proving yet again that it's always a mistake to get between someone and their java.

Massive Salmonella Outbreak Linked to Raw Turkey Just Days Before Thanksgiving

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iStock.com/kajakiki

The U.S. has been in the midst of a salmonella outbreak for more than a year, with the bacteria contaminating everything from cereal to snack foods as well as raw poultry. Now health experts warn that your Thanksgiving dinner may put you at risk for infection. As ABC reports, salmonella has been traced back to a number of turkey products, and Consumer Reports is urging the USDA to name the compromised brands ahead of the holiday.

The drug-resistant strain of salmonella linked to the recent outbreak has been detected in samples taken from live turkeys, raw turkey products, and turkey pet food, according to the Centers for Disease Control and Prevention (CDC). Since November 5, 2017, 164 people in 35 states have contracted the infection from a variety of products.

While many of the items linked to the salmonella outbreak have been pulled from shelves, the potentially contaminated turkey brands have yet to be identified. In a news release, Consumer Reports urged the USDA to release this information in time for consumers to do their Thanksgiving shopping.

"The USDA should immediately make public which turkey producers, suppliers, and brands are involved in this outbreak—especially with Thanksgiving right around the corner," Jean Halloran, director of food policy initiatives for Consumers Union (the policy department of Consumer Reports), said in a statement. "This information could save lives and help ensure consumers take the precautions needed to prevent anyone in their home from getting sick."

Even if specific brands aren't flagged before November 22, the CDC isn't telling consumers to skip the turkey altogether. Instead, home cooks are encouraged to practice the same safety precautions they normally would when preparing poultry. To avoid salmonella poisoning, start with a clean work area and utensils and wash your hands and counter thoroughly before and after preparing the bird. But skip washing the bird itself, as this can actually do more to spread around harmful pathogens.

Cook your turkey until the meatiest part reaches an internal temperature of 165°F. And if you're looking for a way to make sure the juiciest parts of the turkey cook through without drying out your white meat, consider cooking the parts separately.

[h/t ABC]

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