Gene Therapy




  Food- Traditional

foodWhat's cooking? A big batch of biotechnology. Breakthroughs in the field of genetic engineering are changing the way our food is produced. Explore More about what you're eating now and what's on the table for the future!

Biotechnology is the use of living organisms or other biological systems in the manufacture of products or for environmental management.

Traditional Uses
Traditional biotechnology has always been a part of food production. The use of microorganisms like yeast and bacteria to create food and drink is traditional biotechnology. Gasses from yeast make bread rise and are used to ferment beer and wine. Bacteria contribute to creating yogurt, and enzymes assist in making cheese.

Natural selection and crossbreeding are also techniques of traditional biotechnology. Those methods create stronger and higher yielding crops, and result in more desirable traits in livestock. Traditional biotechnology uses the natural biological functions of organisms to help create crops and livestock, and food and drink.

Now, genetic engineering - a modern biotechnology - is competing with traditional biotechnology. Genetic engineering allows scientists to replicate, improve or even completely change the natural functions of the organisms we rely on for food.

Science Versus Nature
Why would food producers turn to science instead of relying on nature? Efficiency, effectiveness and cost.

A genetically engineered version of an enzyme or a protein can often be produced more efficiently than its natural counterpart. For instance, genetic engineering is used to produce mass quantities of an enzyme important to making cheese, chymosin. The traditional method of obtaining chymosin can't produce the large quantities that genetic engineering can, making the new method more efficient.

Sometimes science provides a more potent version of a natural enzyme or protein. And cost almost always factors into the equation when deciding whether to use genetic engineering in food production.

Current Uses of GE
Right now the most common uses of genetic engineering in food production focus on traits that benefit producers of food, not consumers of food.

Genetically engineered traits like disease and insect resistance are now common in crops like corn and soybeans. That means many foods wind up with ingredients that were genetically engineered, instead of the whole food being genetically engineered. (Margarine made with soy oil made from soybeans genetically engineered to tolerate pesticides.) The very first whole food genetically engineered was the Flavr Savr Tomato.

Future Foods
The biggest changes for food could come when genetic engineering focuses on consumer traits. Foods could be genetically engineered to have fewer calories, increased vitamins and minerals, or have allergens removed - making peanut butter safe for everyone!

Currently there is a lot of debate over whether genetic engineering should be used in food production at all. What do you think?

What Do You Think?
What kinds of traits would you like to see engineered into food? Should food production use GE? For more information visit the article on Frankenfoods in the Issues section.

New York Times Online. Genetically Modified Organisms. (Online.) September 2002.

Food and Drug Administration. "Genetic Engineering Fast Forwarding to Future Foods." (Online.)

Explore More: Genetic Engineering
Copyright 2004, Iowa Public Television
The Explore More project is supported by funds from the
Roy J. Carver Charitable Trust
and the USDE Star Schools Program.


Flavr Savr Tomato
The Flavr Savr tomato was designed to ripen on the vine, and then stay ripe. More

Genetically Engineered Chymosin
Chymosin is a key ingredient in cheese, ice cream, and other dairy products. More

IPTV Market to Market Links

GMOs Dominate 2002 Crop Acres
In no economic sector is the potential of G-M-O's debated more than in agriculture. And there are few advocates who are embracing and utilizing the technology more than American farmers

Biotech Roundup
From nutrition labels on food to crop verification software, information is becoming a big part of the food sector of the economy.

Starlink Did Not Cause Allergies
The U.S. Centers for Disease Control said it found no evidence linking the genetically modified corn variety to reported cases of rashes, diarrhea, and breathing problems.