The Philippines is developing a genetically modified (GM)
coconut with at least as much lauric acid as canola to allow
it to hold onto its leading share of the world's vegetable
oil market.
Lauric acid, a medium-length long-chain fatty acid, is found
in the form of glycerides in a number of natural fats, especially
coconut and palm kernel. It offers advantages in food processing
as it acts as a kind of preservative, staving off oxidation
and spoiling.
Lauric acid is also believed to have antimicrobial properties
and is frequently exploited by pharmaceutical companies as
well.
But the development of canola with a lauric acid content
of 60 per cent is threatening the Philippines' lead in the
oils market. The canola is already available in the US although
not yet used to a large extent in Asia.
Now a team at the University of the Philippines-Los Baños
say they have located the genes responsible for production
of lauric acid and they will have a lauric acid-rich coconut
plant ready for commercial launch as early as next year.
"The Philippines is meeting 65 per cent of the world's
need for vegetable oil. (But) the development of canola with
60 per cent lauric acid content makes it difficult for us
to compete in the market, unless we're able to modify it
through genetic engineering," Dr Rita P. Laude, gene
discovery project leader at the university told the Manila
Bulletin Online.
The three cloned genes significant in fatty acid synthesis-acetyl
CoAcarboxylase, acyl-ACP thioesterase, phosphatidic acid
phosphatase- are currently being tested for their ability
to produce the enzymes that 'over express' or multiply the
gene characterizing coconut's lauric acid content.
"Three more genes- beta ketoacyl ACP synthase3, acyl
carrier protein, and lysophos-phatidic acid acyltransferase
- are needed in order to maximize increase in potential GM
lauric acid content," said assistant professor Marni
E. Cueno, who also works with Laude.
Today, soybean and palm oil combined account for over half
of all oil consumed in the world. Canola is the third largest
oil crop, reaching 15 million tons in 2004 but more expensive
than the other two.