Manufacturing News

Processed corn healthier than corn on the cob?

A Cornell University scientists report that the heat processing used to manufacture sweet corn significantly increases both the total antioxidant activity and the level of phenolics, a naturally occurring type of phytochemical found in many fruits and vegetables.

“It’s conventional wisdom that processed fruits and vegetables have lower nutritional value than sweet fresh produce,” said Rui Hai Liu, M.D., Ph.D., assistant professor of food science at Cornell University. But Liu’s ongoing investigation of fruits and vegetables contradicts conventional wisdom.

In one study, published two years ago in Nature, Liu and his team found that less than 0.4 percent of an apple’s antioxidant activity comes from vitamin C. Instead, a combination of phytochemicals supplies the antioxidants in apples. This led Liu to suspect that processed fruits and vegetables might actually maintain their antioxidant activity despite the loss of vitamin C.

Earlier this year, in another study published in the Journal of Agricultural and Food Chemistry, the researchers reported more evidence that processing is beneficial. They found that cooking tomatoes triggers a rise in total antioxidant activity, chiefly due to an increase in lycopene–a phytochemical that makes tomatoes red. The findings are obviously good for the processing industry, Liu said, but they are also good for the consumer.

Did you enjoy this article? Click here to subscribe to Food Engineering Magazine.

You must login or register in order to post a comment.

Multimedia

Videos

Image Galleries

Plant of the Year 2015

Mars Chocolate was chosen as Food Engineering’s 2015 Plant of the Year. The first new Mars candy plant in North America in 35 years is not only LEED Gold certified, it’s highly automated as well.

Podcasts

Burns & McDonnell project manager RJ Hope and senior project engineer Justin Hamilton discuss the distinctions between Food Safety and Food Defense as well as the implications for food manufacturers of the Food Safety Modernization Act.
More Podcasts

Food Engineering

Food Engineering April 2015 Cover

2015 April

The April 2014 issue of Food Engineering features the Plant of the Year: Mars Chocolate. The first new Mars chocolate candy plant in North America in 35 years is not only LEED Gold certified, it’s highly automated as well.

Table Of Contents Subscribe

Plant Facility/Site Issues

What issue about your current plant facility/site keeps you up the most at night?
View Results Poll Archive

THE FOOD ENGINEERING STORE

Food-Authentication-Flyer-(.gif
Food Authentication Using Bioorganic Molecules

This text provides critical tools and data needed to augment routine food analysis and enhance food safety by aiding in the detection of counterfeit, and potentially deleterious, foods.

More Products

Clear Seas Research

Clear Seas ResearchWith access to over one million professionals and more than 60 industry-specific publications,Clear Seas Research offers relevant insights from those who know your industry best. Let us customize a market research solution that exceeds your marketing goals.

STAY CONNECTED

FE recent tweets

facebook_40.pngtwitter_40px.pngyoutube_40px.png linkedin_40px.pngGoogle +

Food Master

Food Engineering Food Master 2015Food Master 2015 is now available!

Where the buying process begins in the food and beverage manufacturing market. 

Visit www.foodmaster.com to learn more.