Years 2 | n. 7 | 30 July 2010 | Director LUIGI CARICATO
Food & Fun > Health

Is better beer or wine to prevent diseases?

Red wine contains all the active principals of fruit, especially polyphenols but a new study suggests that beer is a significant source of dietary silicon, a key ingredient for increasing bone mineral density

by Ernesto Vania

Researchers from the Department of Food Science & Technology at the University of California, Davis studied commercial beer production to determine the relationship between beer production methods and the resulting silicon content, concluding that beer is a rich source of dietary silicon.

Silicon is present in beer in the soluble form of orthosilicic acid (OSA), which yields 50% bioavailability, making beer a major contributor to silicon intake in the Western diet. According to the National Institutes of Health (NIH), dietary silicon (Si), as soluble OSA, may be important for the growth and development of bone and connective tissue, and beer appears to be a major contributor to Si intake. Based on these findings, some studies suggest moderate beer consumption may help fight osteoporosis, a disease of the skeletal system characterized by low bone mass and deterioration of bone tissue.

The researchers examined a variety of raw material samples and found little change in the silicon content of barley during the malting process. The majority of the silicon in barley is in the husk, which is not affected greatly during malting. The malts with the higher silicon contents are pale colored which have less heat stress during the malting process. The darker products, such as the chocolate, roasted barley and black malt, all have substantial roasting and much lower silicon contents than the other malts for reasons that are not yet known. The hop samples analyzed showed surprisingly high levels of silicon with as much as four times more silicon than is found in malt. However, hops are invariably used in a much smaller quantity than is grain. Highly hopped beers, however, would be expected to contain higher silicon levels.

No silicon was picked up from silica hydrogel used to stabilize beer, even after a period of 24 hours and neither is there pick up from diatomaceous earth filter aid.
The study also tested 100 commercial beers for silicon content and categorized the data according to beer style and source. The average silicon content of the beers sampled was 6.4 to 56.5 mg/L.

Prof Giacosa, head of the Department of Gastroenterology at Policlinico di Monza in Italy, advocates the consumption of a glass or two of wine every day, as it contains "all the active principals of fruit, especially polyphenols -- a component of great significance because even the very colour of wine, the colour red or ruby, the flavours, the fragrances, are tied to specific compounds linked to polyphenols, themselves extremely beneficial to our organism."

Any food, moderating your consumption is key to reaping the benefits.
Eating a balanced diet and preparing your food in the correct way may be your best defense against developing cancer, according to top cancer researchers.

by Ernesto Vania
01 March 2010 Teatro Naturale International n. 3 Year 2

© REPRODUCTION RESERVED