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October 18, 2010
Volume 88, Number 42
p. 48

Beer: Ancient, Space, Fried … And Troublesome

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Golden delicious: Beer inspires science and creative cooking.

As National Chemistry Week kicks off, what better topic to whet the scientific appetite than the Sci-Mix beverage of choice?

BEER CONSUMPTION, of course, goes back several millennia. It turns out, however, that the beer brewed in ancient Nubia around A.D. 450 had a little extra kick. Chemist Mark Nelson of Boston’s Paratek Pharmaceuticals, anthropologist George Armelagos of Emory University, and colleagues have found that the bones of Nubians—who lived in the region that is present-day Sudan—were saturated with the antibiotic tetracycline (Am. J. Phys. Anthropol. 2010, 143, 151).

The researchers believe that the Nubians made the antibiotic by fermenting beer with grain that contained the soil bacteria Streptomyces, which produces tetracycline. They also think that the Nubians produced the antibiotic beer intentionally. The Nubian culture revered gold and likely prized golden colonies of Streptomyces. Additionally, other ancient cultures used beer to treat disease—gum disease was a target of the ancient Egyptians and Jordanians, Armelagos says—suggesting that they knew about and propagated antibiotic qualities in the 
beverage.

The next frontier for beer, however, might not be on Earth. Although alcohol is banned on NASA space missions and in the International Space Station, companies developing space tourism programs are anticipating demand for a broader menu. Next month, Astronauts4Hire will test a stout, made by Australia’s 4 Pines Brewing, on zero-gravity flights.

“Your tongue swells when you’re out in space so therefore you lose a lot of the ability to detect flavour, so we’ve come up with a beer recipe that has a lot of body and full flavour,” 4 Pines owner Jaron Mitchell told the Brisbane Times.

He added that burping is also a different experience without gravity. “When you’re on Earth, the gravity actually separates the air and the liquid such that if you burp, you burp the air, whereas when you’re just floating around in space you can do what’s called wet burps, which are little suspended balls of liquid just hovering around,” he said.

In other beverage advances, beer can now be added to the seemingly endless list of things that people will fry. Mark Zable of Plano, Texas, debuted his fried beer concoction last month at the Texas State Fair, where he won the “Most Creative” Big Tex Choice Award.

As you might imagine, beer and hot oil don’t mix, so Zable encases the beer in a pocket of pretzel dough. The result is something akin to beer ravioli. The ravioli are bite size, so you can pop a whole one in your mouth, Zable says. He has applied for a patent on the secret process he uses to produce the beer pockets.

Before you’re inspired to head off in search of your ale of choice, however, one last cautionary note: Scientists at the University of Leipzig, in Germany, have studied the cases of 405 patients who had to be hospitalized for “ethanol intoxication without trauma.” The researchers wanted to determine the risk factors and data trends involved for the unfortunate patients, who attended Oktoberfest in Munich in 2004.

After looking at level of consciousness, ethanol blood concentration, age, sex, blood pressure, body temperature, heart rate, blood sugar, and a few other parameters, the researchers found that those most likely to be hospitalized were men aged 20–29 years (Arch. Toxicol. 2008, 82, 933). It’s not clear whether the antibiotic-laced beer of the Nubians would have improved the young men’s fate.

Jyllian Kemsley wrote this week's column. Please send comments and suggestions to newscripts@acs.org.

Chemical & Engineering News
ISSN 0009-2347
Copyright © 2011 American Chemical Society
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