Health officials around the world are looking for contaminants in food and beverages, and studies from as far as Finland, Italy and Chile have found signs of lead, cadmium, mercury and arsenic in products such as Bottled water, carbonated beverages and fruit juices.
In the United States, the Food and Drug Administration (FDA) attempts to protect the public from the health hazard caused by exposure to heavy metals arsenic, lead and cadmium in food and beverages.
Increased amounts of these contaminants – above the allowable limits set by the FDA – have been reported in some fruit juices, wines and beers, but researchers were losing how the metals end up in the finished products. 1
More importantly, they believe that they have also found ways to limit pollution according to their report published in Journal of Agricultural and Food Chemistry . Consumer Reports Consumer Reports says that children are particularly vulnerable to the detrimental effects of heavy metals.
"Exposure to these metals early can affect their entire lifestyle," wrote Jennifer Lowry of the American Academy of Pediatrics Council for Environmental Health in a recent report on fruit juice contamination.
Diatomaceous earth is one of the most widely used filter aids for the treatment of some fermented alcoholic beverages. It increases clarity and extends product durability.
The new report says that previous experiments found that the use of food quality filter aids for the treatment of apple and grape juice can alter the final concentrations of inorganic arsenic, lead and cadmium, but it was not clear whether The same is true for fermented alcoholic beverages, which can have significant differences in their physical and chemical properties.
Scientists led by Benjamin Redan and Lauren Jackson from the FDA Chicago facilities say their studies are based on past work to identify factors affecting the transfer of heavy metals from three types of food grade diatomaceous earth filter aids to beer and lager beer. and red and white wine.
Wines from the United States, Australia, Argentina, Spain, Italy, South Africa, Germany, France and Italy were tested.
Beer was tested from the United States, Australia, Scotland, UK, Barbados, Germany, the Czech Republic, Ireland, Jamaica, Belgium and the Netherlands.
The researchers found that all three types of diatomaceous earth contained arsenic as well as minor amounts of lead and cadmium.
When using filter for beer or wine in the laboratory, one of the diatomaceous earth samples increased the arsenic considerably and rises above the safe limit of 10 parts per liter. Milliard (ppb) suggested by the FDA for apple juice. However, the amount of arsenic transferred to beverages decreased when the beverage was exposed to less diatomaceous earth, the pH of the liquid changed, or the diatomaceous earth was washed in advance.
The researchers also measure levels of the heavy metals in commercial beer and wine samples. Although the discovered arsenic in beverages, the levels were below 10 ppb, except for two wine samples containing 18 and 11 ppb arsenic.
The report says that analyzes of beer and wine market samples showed a large selection of heavy metal concentrations, but points out that the nature of the treatment steps used in the manufacture of commercial samples, including the type and amount of filter aids , not known.