Features Production Research
Scientists try to improve flavour of produce

August 18, 2010 – Remember when every bite of store-bought produce was
succulent? Today’s youth have a different experience with store-bought
fruits and vegetables – sometimes they’re yummy and juicy; sometimes
they taste like chalk.

August 18, 2010 – Remember when every bite of store-bought produce was succulent? Today’s youth have a different experience with store-bought fruits and vegetables – sometimes they’re yummy and juicy; sometimes they taste like chalk.

That doesn’t help a parent to persuade a child to try an unfamiliar food.

“It’s a problem, because often you have only one window of opportunity to introduce a new fruit or vegetable to your child,” says Beth Mitcham, University of California – Davis Cooperative Extension specialist, director of the UC Davis Postharvest Technology Center and concerned mother. “And if the food doesn’t taste good, they aren’t going to like it.”

And if kids don’t like it, they’re not going to eat it. New research by Mitcham and a broad group of experts may remedy the situation. Mitcham and her team recently received a grant of nearly $6 million from the U.S. Department of Agriculture to improve the flavor quality of fruits and vegetables available to U.S. consumers and thereby increase their consumption.

A collaboration between UC Davis and the University of Florida, the project is co-directed by Mitcham and Jeff Brecht, University of Florida postharvest physiologist. Nearly 30 experts in various disciplines from the two research institutions and more than 25 stakeholders from the produce industry are participating.

As a postharvest technology specialist, Mitcham knows full well the challenges growers, packers and shippers face in getting crops from the field to the market in a condition shoppers will buy.

“Experience shows produce buyers rarely reject produce because it’s under-ripe,” Mitcham says. “But they will reject it if there is any bruising or decay.”

Growers, shippers and retailers face big challenges delivering tomatoes to customers all across the globe year-round. Because shoppers eschew bruised produce, growers harvest before the fruit is fully ripe, before its flavor has reached full potential.

The team is looking at how they can alter that equation so produce is more flavourful and still safe and economically viable for the industry. Their research will examine each step in the postharvest chain asking questions like these:

Can we slow the ripening process, so it can be picked later and still be fresh when it reaches the market? Is there new technology – in sorting, packing, shipping or anything else – that can help? How is flavor enhanced and inhibited during shipping and storing?
If produce was riper during postharvest handling, would that affect our food safety risk? Would more pathogens survive?

If produce was consistently flavourful, would consumers buy more?

“I think we can do a better job of developing varieties with more flavor and improving postharvest performance so consumers can count on flavorful fruits and vegetables,” Mitcham says. “And I think this project will help.”