Tobacco as raw material can be made "green" pesticides

Tobacco use as a natural insecticide for several hundred years of history, but its application has been limited, use is also very primitive. Recently, the U.S. network reported Science Daily, a new study says widely criticized in the chemical pesticides and the dangers of smoking under the background of increasingly clear to tobacco as raw material or the commercial production of pesticides will be the future new investment hot spot, tobacco farming and pesticide manufacturing industry is also very likely to benefit. Research published in the United States, "Industrial and Chemical Engineering" magazine.

Responsible for the study Cedric Kebu Rhinestone and colleagues point out that smoking caused people to worry about health problems and the increasingly stringent anti-smoking countries in terms of the objective will result in loss of many farmers. Therefore, scientists are looking for other uses of tobacco. Manufacturing natural pesticides used on tobacco existing programs is undoubtedly the most promising one, because as early as a century ago, the gardener will have broken leaf is mixed with water to pesticides. This "green" pesticides to tobacco for the production of raw materials, in addition to the farmers generate additional income, but also very environmentally friendly.

The researchers said that the current most likely the way through the production of pyrolysis of tobacco pesticides. In the high-temperature vacuum equipment, tobacco is heated to 482 degrees Celsius, resulting in a condition known as "bio oil" of the material.

Experiments show that tobacco produced bio-oil can kill a very wide range of pests, including 11 species of fungi, the Colorado beetle, and the current common are resistant to chemical pesticides pests. In the experiment, this bio-oil killed all the beetles and inhibit the two types of bacteria and a fungus reproduction. Even if removed from the nicotine ingredients, bio-oil can still effectively kill the pests. The researchers believe that the pesticide that has inhibited the ability of some but not all micro-organisms so that it can become a new selective pesticides.