(NaturalNews) Levels of the beneficial, cancer-fighting compound sulforaphane in broccoli are reduced by 90 percent when the vegetable is cooked, according to a study conducted by researchers from TNO Quality of Life in the Netherlands, and published in the Journal of Agricultural and Food Chemistry.
"Consumption of raw broccoli resulted in faster absorption, higher bioavailability, and higher peak plasma amounts of sulforaphane, compared to cooked broccoli," the researchers wrote.
Bioavailability and Kinetics of Sulforaphane in Humans after Consumption of Cooked versus Raw Broccoli
Martijn Vermeulen*, Ineke W. A. A. Klpping-Ketelaars†, Robin van den Berg‡ and Wouter H. J. Vaes
J. Agric. Food Chem., 2008, 56 (22), pp 10505-10509
Publication Date (Web): October 24, 2008 (Article)
DOI: 10.1021/jf801989e
Shiitake mushroom, native to East Asia, is cultivated worldwide for its purported health benefits. The fresh and dried forms of the mushroom are commonly used in East Asian cooking. It is also valued as an anticancer agent.
Lentinan (1,3 Beta-D-glucan), a polysaccharide isolated from Shiitake, has been well studied and is thought responsible for its beneficial effects.
It was shown to have anticancer effects in colon cancer cells (1), which may be due to its ability to suppress cytochrome P450 1A enzymes that are known to metabolize pro-carcinogens to active forms
The influence of processing and preservation on the retention of health-promoting compounds in broccoli.
Galgano F, Favati F, Caruso M, Pietrafesa A, Natella S.
J Food Sci. 2007 Mar;72(2):S130-5.
PMID: 17995854
DOI: 10.1111/j.1750-3841.2006.00258.x
University of Illinois researcher Elizabeth Jeffery has learned how to maximize the cancer-fighting power of broccoli. It involves heating broccoli just enough to eliminate a sulfur-grabbing protein, but not enough to stop the plant from releasing an important cancer-fighting compound called sulforaphane.
The discovery of this sulfur-grabbing protein in the Jeffery lab makes it possible to maximize the amount of the anticarcinogen sulforaphane in broccoli.
When a friend is going through Cancer treatment, we naturally want to help - and for many people, that means whipping up a casserole or some other comfort food.