Batesville Herald Tribune, Batesville, Indiana

Community News Network

August 2, 2013

Study shows genetics can determine why we smell certain odors differently

The next time you argue with a friend about the whiff of cilantro in your stir-fry that he finds disgusting, blame his genes.

All of us inhabit our own flavor world that is highly dependent on our genetic blueprint for being able to smell certain odors, according to two studies a New Zealand research group published online Thursday in the journal Current Biology.

The perception of flavor while eating includes what your taste buds can detect — sweet, salty, bitter, sour and umami (often called savory) — but they play a meek supporting role to your sense of smell.

That sensory experiences of food differ from person to person has always been known anecdotally. Think of strong, hoppy beer or black coffee that some find revoltingly bitter but others can drink like water. But the researchers wanted to know how much of that variability is genetically hard-wired.

They had 187 people smell 10 different compounds, taking note of who could smell them at a certain concentration level and who couldn't. They sequenced each person's DNA, scanning their genomes to pick out parts that could possibly explain the variations in smell sensitivity.

Out of 10 scents tested, four had a strong genetic basis — malt, apple, blue cheese and violet. They were also independent of one another, so even if you have a super-nose for blue cheese, you might fall short when it comes to smelling violets.

One study found a single gene change linked to the floral scent found in violets. The other study more generally hunted down spots within the genome connected to three additional food-related smells.

Odors typically consist of molecular building blocks called aroma compounds. For example, while blue cheese gives off a whole bouquet of aromas, 2-heptanone is the chemical that really "gives blue cheese its blue cheesiness," said lead researcher Richard Newcomb of the New Zealand Institute for Plant and Food Research.

Text Only
Community News Network
  • An alarming threat to airlines that no one's talking about

    It's been an abysmal year for the flying public. Planes have crashed in bad weather, disappeared over the Indian Ocean and tragically crossed paths with anti-aircraft missiles over Ukraine.

    July 30, 2014

  • Sharknado.jpg Sharknado 2 set to attack viewers tonight

    In the face of another "Sharknado" TV movie (the even-more-inane "Sharknado 2: The Second One," premiering Wednesday night on Syfy), there isn't much for a critic to say except to echo what the characters themselves so frequently scream when confronted by a great white shark spinning toward them in a funnel cloud:
    "LOOK OUT!!"

    July 30, 2014 1 Photo

  • 20140729-AMX-GIVHAN292.jpg Spanx stretches into new territory with jeans, but promised magic is elusive

    The Spanx empire of stomach-flattening, thigh-slimming, jiggle-reducing foundation garments has expanded to include what the brand promises is the mother of all body-shaping miracles: Spanx jeans.

    July 29, 2014 1 Photo

  • Medical marijuana opponents' most powerful argument is at odds with a mountain of research

    Opponents of marijuana legalization are rapidly losing the battle for hearts and minds. Simply put, the public understands that however you measure the consequences of marijuana use, the drug is significantly less harmful to users and society than tobacco or alcohol.

    July 29, 2014

  • linda-ronstadt.jpg Obama had crush on First Lady of Rock

    Linda Ronstadt remained composed as she walked up to claim her National Medal of Arts at a White House ceremony Monday afternoon.

    July 29, 2014 1 Photo

  • Can black women have it all?

    In a powerful new essay for the National Journal, my friend Michel Martin makes a compelling case for why we need to continue the having-it-all conversation.

    July 29, 2014

  • Dangerous Darkies Logo.png Redskins not the only nickname to cause a stir

    Daniel Snyder has come under fire for refusing to change the mascot of his NFL team, the Washington Redskins. The Redskins, however, are far from being the only controversial mascot in sports history.  Here is a sampling of athletic teams from all areas of the sports world that were outside the norm.

    July 28, 2014 3 Photos

  • 'Rebel' mascot rising from the dead

    Students and alumni from a Richmond, Va.-area high school are seeking to revive the school's historic mascot, a Confederate soldier known as the "Rebel Man," spurring debate about the appropriateness of public school connections to the Civil War and its icons.

    July 28, 2014

  • Fast food comes to standstill in China

    The shortage of meat is the result of China's latest food scandal, in which a Shanghai supplier allegedly tackled the problem of expired meat by putting it in new packaging and shipping it to fast-food restaurants around the country

    July 28, 2014

  • wd saturday tobias .jpg Stranger’s generosity stuns Ohio veteran

    Vietnam War veteran David A. Tobias was overwhelmed recently when a fellow customer at an OfficeMax store near Ashtabula, Ohio paid for a computer he was purchasing.

    July 28, 2014 1 Photo

Featured Ads
AP Video
Raw: Japanese Soldiers Storm Beach in Exercises Raw: Weapons Fire Hits UN School in Gaza Raw: Rocket Launches Into Space With Cargo Ship Broken Water Main Floods UCLA Two Women Narrowly Avoid Being Hit by Train In Virginia, the Rise of a New Space Coast New Sanctions on Key Sectors of Russian Economy Crayola Announces Family Attraction in Orlando US Ready to Slap New Sanctions on Russia Kerry: Not Worried About Israeli Criticism Boater Rescued From Edge of Kentucky Dam Girl Struck by Plane on Florida Beach Dies Rodents Rampant in Gardens Around Louvre House to Vote on Slimmed-down Bill for Border Looming Demand Could Undercut Flight Safety Raw: 2 Shells Hit Fuel Tank at Gaza Power Plant Raw: Massive Explosions From Airstrikes in Gaza Giant Ketchup Bottle Water Tower Up for Sale Easier Nuclear Construction Promises Fall Short Kerry: Humanitarian Cease-fire Efforts Continue
Seasonal Content
Hyperlocal Search
Premier Guide
Find a business

Walking Fingers
Maps, Menus, Store hours, Coupons, and more...
Premier Guide
Parade
Magazine

Click HERE to read all your Parade favorites including Hollywood Wire, Celebrity interviews and photo galleries, Food recipes and cooking tips, Games and lots more.
Facebook