Metals, Metals edible gold and silver in the food
These two metals are some of those used with increasing frequency as food colors to decorate the plates
A magazine recently published a famous singer international drinking champagne chips sprinkled with edible silver. This news is surprising and unique eccentric millionaires who do not know that both silver and gold, two very precious metals in jewelry, are also considered edible. The European Union allows the use in food of these metals and others such as titanium and aluminum, including within the list of approved food additives.
For MAITE ZUDAIRE
January 15, 2009
- Image: Instituto de los Andes -
Gold and silver are having a great significance in recent years for use in high-level cuisine in the presentation of culinary preparations tended to have a feel truly spectacular. "Working with gold has given me more pleasure than any other substance," he says in John Fackler interview, American chemist who investigates the properties of this metal. It also says that gold is unreactive and is not affected nor water, nor heat, nor air.
Aesthetic more than happy
All these qualities have been exploited by great chefs of the moment in our country, and Carme Ruscalleda, Ferran Adrià, Dani García, Andoni Luis Aduriz Quique Dacosta and Elena Arzak. All of them have been discovered in the gold (also in silver and other metals) a luxury ingredient to express their creativity, when used in films, powdered or flaked to make some dishes suggestive.
Great chefs use gold as a luxury ingredient do more suggestive dishes
Sight is the first sense that comes into contact with food, "eat with our eyes". Who have used and tested metals like gold and silver agree that the taste is not what stands out in these metals because it is neutral, but "given much play in general and have wide acceptance among customers, rather than their taste qualities, for its originality "in the words of Elena Arzak.
But the use of these metals is nothing new, but have become popular recently. Egyptians and Romans used them in their preparations culinary. There are several references to the 'great cakes covered with gold leaf at the time of the Roman patricians, or the "mignardises" covered with gold, small sweets served with coffee in Venice in the sixteenth century, the theory of the time "in order to alleviate rheumatism and strengthen the heart." The Chinese, like the Egyptians, have been used since ancient gold as an ingredient in medicinal preparations, seeing it as beneficial to health. They have also been many years since the first time began to use gold as a decorative element in the schools of French pastries.
gourmet dressings
In stores and unique niche products can be found containers with spray type dispenser of fine flakes of edible gold and silver. There are also powder or sheet, which allows you to choose one or the other depending on the effect you want cause at the plate to be decorated. In the list of ingredients of one of the containers are specified, for example, it is flakes of 22 carat gold.
These compounds are designed to impress and give a unique touch to a dish. Sprinkle the dish chosen with gold flakes, garnish with thin slices or covered with a very light metal layer, which results in a striking presentation that leaves no one indifferent. Anyone surprised only by the mere thought of going to eat gold or silver, and can see how the metal melts on contact with the language without changing the taste of food. For example, would be even more tempting desserts like chocolate tears, unosbrioches chocolate and apple or homemade truffles dusted with flakes of gold or silver.
should be noted that whatever is unique about these products is reflected in the price, about 100 grams may cost about 40 euros at a good price, and even more. Although it should be noted that the amount used is very small so the performance is great.
SELECTED ADDITIVES
The EU publishes a list of permitted food additives along with their corresponding identification codes. This list shows several metals considered as food dyes: gold (E-175), silver (E-174), titanium (E-171 or titanium dioxide) and aluminum (E-173). For aluminum in particular, although its use as an additive is permitted, apparently the European Food Safety Authority (EFSA, in the acronym) is proposed that the amount considered to be tolerable for a person ingests aluminum could exceed the amount of a milligram per kilo of body mass per week.
Al aluminum contained naturally in foods and water is added as an additive added the dye, leading some drugs and may dispose of some kitchen utensils, cans or paper used for Cover food. The Codex Alimentarius specified for titanium dioxide in food that can be used as a dye. Derived from beverages and as different types cheese, confectionery and prepared to vegetables and processed fruit, and dressings and condiments.
gold and silver, although its use is not widespread, are often used for exterior decoration of foods such as chocolate, candy and dredge (a sweet version of which are more like covered almonds sugar of different colors). Both metals are used in baking but increasingly are used more in savory dishes. A search of food and niche products decorated with these items results in the exclusive Swiss chocolate chocolates DeLafée produced gold flakes in the form of bars, or sparkling wine is sold, the Cuvée Gold with gold flakes in suspension.
GOLD HEALTH
Unlike iron or calcium, gold and silver are not considered essential elements of the human diet. However, some specialists agree that eating gold provides several benefits to the body, eliminating toxins and slowing the aging of the skin. While all of these supposed benefits are not documented, it is known that gold is not toxic, allergy tested only in contact with skin and remains unchanged compared to biological fluids such as blood.
A review of the pharmacological properties of gold held by the Department of Medicine (Rheumatology), McMaster University, Ontario (Canada) considers the health benefits of gold. Several authors note that there is strong evidence that injectable gold compounds, such as gold sodium thiomalate can be the first choice for effective treatment of rheumatoid arthritis.
According to chemist John Fack, its positive effect might be due gold to prevent the formation of peroxynitrate, which "could be the biggest villain in the deterioration of bone cells and patients suffering from rheumatoid arthritis," he explains. Gold, by blocking the formation of the compound, act as an antioxidant preventing free radical accumulation .
Name: Yenny Zoraida Morales Zambrano
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