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USDA research demonstrates new breeds of broccoli remain packed with health benefits
Date:10/13/2011

This press release is available in Spanish.

Research performed by scientists at the U.S. Department of Agriculture (USDA) and published recently in the journal Crop Science has demonstrated that mineral levels in new varieties of broccoli have not declined since 1975, and that the broccoli contains the same levels of calcium, copper, iron, magnesium, potassium and other minerals that have made the vegetable a healthy staple of American diets for decades.

"This research provides data on the nutritional content of broccoli for breeders to consider as they further improve this important vegetable," said Edward B. Knipling, administrator of the Agricultural Research Service (ARS), USDA's principal intramural scientific research agency. "The research demonstrates how ARS is helping to find answers to agricultural problems that impact Americans every day, from field to table."

A team of three scientists evaluated the mineral content of 14 broccoli cultivars released over a span of more than 50 years: ARS geneticist and research leader Mark Farnham at the agency's U.S. Vegetable Laboratory in Charleston, S.C.; plant physiologist Michael Grusak at the USDA-ARS Children's Nutrition Research Center (CNRC) in Houston, Texas; and Clemson University scientist Anthony Keinath.

The researchers grew the 14 cultivars in two field trials in 2008 and 2009, and harvested florets for testing.

"Our studies show that not much has changed in terms of mineral content in the last 35 years in a crop that has undergone significant improvement from a quality standpoint and that was not widely consumed in the United States before the 1960s," said Farnham.

Broccoli florets in the study were tested for levels of calcium, copper, iron, potassium, magnesium, manganese, molybdenum, sodium, phosphorous, sulfur and zinc. Results indicated signific
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Contact: Sharon Durham
sharon.durham@ars.usda.gov
301-504-1611
United States Department of Agriculture - Research, Education and Economics
Source:Eurekalert

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