Passive smoking and litter could explain high levels of nicotine found in spices, herbal teas, and medicinal plants

Despite the fact that nicotine insecticides were banned in 2009, European researchers say that high concentrations of nicotine are still detected in many plants. The journalAgronomy for Sustainable Development now reports that passive smoking and contaminated soils could be to blame for high levels of nicotine found in spices, herbal teas, and medicinal plants.

Lead researcher Dirk Selmar, at the Technical University of Braunschweig, Germany, says he used peppermint plants (Mentha x piperita) in a series of mulching and fumigation experiments to investigate nicotine take-up from the environment.

The research reveals, for the first time, that the reported high levels may indeed originate from tobacco. “Tremendously elevated nicotine levels were detected after fumigation with cigarette smoke,” notes Selmar.

Selmar’s team is also the first to show that peppermint plants can actually take up high concentrations of nicotine from contaminated soils. This follows the analysis of plants mulched with cigarette tobacco for more than nine days. The resulting nicotine concentrations are several times higher than the maximum residue level set by the European authorities.

“Our results suggest that the widespread occurrence of nicotine in medicinal, spice, and food plants may, at least in part, be due to other nicotine sources apart from the illegal use of insecticides,” says Selmar.

Apart from significance for the food industry, the findings prove that substances, such as alkaloids like nicotine, can be transferred from one plant, after its death, to another.

Related:
Discuss this article in our forum
Nicotine vaccine mooted for children
Nicotine receptor gets blame for Internet addiction
Can nicotine transmit disease through multiple generations?

Source: Agronomy for Sustainable Development

, ,

Comments are closed.
Wooden Enchase Smoking Pipe Tobacco Cigarettes Cigar Pipes Gift Hotsale
$1.99 Wooden Enchase Smoking Pipe Tobacco Cigarettes Cigar Pipes Gift Hotsale picture
WESTMINSTER Bruyere Garantie Briar Tobacco Smoking Pipe - Spectacular Finish
$86.05 WESTMINSTER Bruyere Garantie Briar Tobacco Smoking Pipe - Spectacular Finish picture
No Smoking Socony-Vacum Oil Company Sign 6X18
$20.0 No Smoking Socony-Vacum Oil Company Sign 6X18 picture
OLD CIGARETTE - TOBACCO PACKET LABEL. OUR ADVERTISER SMOKING TOBACCO
$4.69 OLD CIGARETTE - TOBACCO PACKET LABEL. OUR ADVERTISER SMOKING TOBACCO picture
5 Fruit Flavoured Smoking Cigarette Tobacco Rolling Papers 5 Books 250 Leaves T2
$6.45 5 Fruit Flavoured Smoking Cigarette Tobacco Rolling Papers 5 Books 250 Leaves T2 picture

Powered by WordPress. Designed by WooThemes