Featured Research

from universities, journals, and other organizations

Of dollars and scents: Tracking the elusive sandalwood oil

Date:
April 13, 2010
Source:
Michigan Technological University
Summary:
Roger Turpening has made a career of searching for hidden things of great value, many of them deep underground and traded on commodities exchanges. Now he is applying his seismic imaging skills in pursuit of another kind of oil, one that grows in trees.

This image of the cross section of a sandalwood log shows the oil-rich heartwood in red.
Credit: Image provided courtesy of Roger Turpening

Roger Turpening has made a career of searching for hidden things of great value, many of them deep underground and traded on commodities exchanges. Now he is applying his seismic imaging skills in pursuit of another kind of oil, one that grows in trees.

If you've ever been transported by a breath of L'Air du Temps or Chanel 5, then you know something of the sandalwood tree. The oil found in its heartwood forms a base note in some of the world's great perfumes, and, at about a thousand dollars a pound, it's one reason why they are so dear.

It takes 12 to 15 years or longer to grow a sandalwood tree that contains an appreciable amount of oil, which is concentrated in the wood in the center of its trunk and in its roots.

To view a tree's interior, foresters sometimes remove a tiny core of wood, which takes 15 minutes, and send it to the company's lab, which takes a week. Unfortunately, the hole forms a portal for insects and disease. Moreover, since the heartwood is at times not located precisely along the axis of the tree, the forester can miss the valuable wood. Because of these difficulties, very few trees are sampled.

To collect the oil, loggers first yank the tree out of the dirt, roots and all. Sometimes they find oil. Sometimes they don't, and all they are left with for years of effort nurturing a potentially precious tree is a few bundles of incense sticks -- and a profound regret at not waiting another year or two.

This is where Turpening, a geophysicist at Michigan Technological University, comes in. Using seismic technology like that he developed to find the structures that harbor oil thousands of feet beneath the surface of the Earth, he has crafted a tree imaging system that can detect the oily heartwood a few inches inside a tree.

The system sends sound waves through the trunk that respond to the heartwood. Computer programs then generate multicolored digital printouts showing cross-sections of the tree; heartwood appears as a deep red disc in the center. Wood without oil, the sapwood, shows up as green or yellow.

The system could result in huge savings to sandalwood growers. It also has potential in the more mundane but potentially lucrative lumber industry. "We've been asked to think about its use on saw logs just before they go up to the saw," says Turpening. If it could detect knots or other flaws, the cuts could be adjusted to maximize the value of the log. "And if veneer has any knots at all, they can ruin a sheet," he says. "If you knew there was a problem with a log, you might not even buy it."

The Freshman Connection

Until a month ago, their system had one minor drawback: it took 16 minutes to generate an image. That wouldn't be excessive for someone deciding whether or not to harvest a $3,000 sandalwood tree. But in a sawmill, 16 minutes is eternal.

Turpening explained the problem to a group of undergraduates in Michigan Tech's Research Scholars program and caught the attention of first-year chemical engineering student Mackenzie Roeser, of Huntley, Ill., and his friend, Scott VanderLugt, of Kalamazoo, a computer science major.

"Roger did his presentation, and we thought it was cool," said Roeser. When they heard how long it was taking to generate the images, they thought they might have a solution.

"Their contribution is just astounding," says Turpening. "What used to take 16 minutes now takes 11 seconds." At the end of the day, Roeser and VanderLugt had slashed the time it took to generate an image by over 98 percent.

Now the group aims to refine their technology to make it easier to use and to provide higher resolution images of the oily heartwood that could be used in stripping away the sapwood.

Their work was made possible in part by a Michigan Universities Commercialization Initiative grant.


Story Source:

The above story is based on materials provided by Michigan Technological University. Note: Materials may be edited for content and length.


Cite This Page:

Michigan Technological University. "Of dollars and scents: Tracking the elusive sandalwood oil." ScienceDaily. ScienceDaily, 13 April 2010. <www.sciencedaily.com/releases/2010/04/100409152907.htm>.
Michigan Technological University. (2010, April 13). Of dollars and scents: Tracking the elusive sandalwood oil. ScienceDaily. Retrieved October 21, 2014 from www.sciencedaily.com/releases/2010/04/100409152907.htm
Michigan Technological University. "Of dollars and scents: Tracking the elusive sandalwood oil." ScienceDaily. www.sciencedaily.com/releases/2010/04/100409152907.htm (accessed October 21, 2014).

Share This



More Plants & Animals News

Tuesday, October 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

'Cadaver Dog' Sniffs out Human Remains

'Cadaver Dog' Sniffs out Human Remains

AP (Oct. 21, 2014) Where's a body buried? Buster's nose can often tell you. He's a cadaver dog, specially trained to find human remains and increasingly being used by law enforcement and accepted in courts. These dogs are helping solve even decades-old mysteries. (Oct. 21) Video provided by AP
Powered by NewsLook.com
White Lion Cubs Born in Belgrade Zoo

White Lion Cubs Born in Belgrade Zoo

AFP (Oct. 20, 2014) Two white lion cubs, an extremely rare subspecies of the African lion, were recently born at Belgrade Zoo. They are being bottle fed by zoo keepers after they were rejected by their mother after birth. Duration: 00:42 Video provided by AFP
Powered by NewsLook.com
Traditional Farming Methods Gaining Ground in Mali

Traditional Farming Methods Gaining Ground in Mali

AFP (Oct. 20, 2014) He is leading a one man agricultural revolution in Mali - Oumar Diatabe uses traditional farming methods to get the most out of his land and is teaching others across the country how to do the same. Duration: 01:44 Video provided by AFP
Powered by NewsLook.com
Goliath Spider Will Give You Nightmares

Goliath Spider Will Give You Nightmares

Buzz60 (Oct. 20, 2014) An entomologist stumbled upon a South American Goliath Birdeater. With a name like that, you know it's a terrifying creepy crawler. Sean Dowling (@SeanDowlingTV) has the details. Video provided by Buzz60
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins