The onion seed, a staple food staple, is now a potentially deadly poison, according to a new study.
Researchers at the University of Minnesota, the University at Buffalo, and University of California, Berkeley tested the seeds of three types of onion: a common type that comes from the seed of the tree known as the mustard, a white seed that comes in varieties known as sunflower and park, and a yellow seed known as sweet orange.
The researchers found that the mustard seed contained more toxic chemicals than the other two seeds tested, suggesting that the poison is not as strong as it appears.
“The chemical analysis was done with three different types of mustard seed,” said Dr. Thomas R. Sauer, a professor of food and agricultural sciences at the university and a co-author of the study published in the journal Proceedings of the National Academy of Sciences.
“The results indicate that the chemical profile of these seeds was similar to those found in mustard seed from the tree commonly known as mustard.”
In the study, the researchers measured the levels of pesticides, thiosulfonylmethane (TSME), a known carcinogen, and thioglycerides, a possible neurotoxin.TSME is also known to cause cancer.
“It is known that these compounds may be toxic to humans when inhaled, which is why we have to be careful,” Sauer said.
“In fact, we have a lot of studies in our field that have shown that exposure to these compounds could lead to cancer in humans.”
The study is important because it will help scientists better understand how to prevent and treat toxicity of mustard seeds, which can be a major source of food waste and pesticide exposure in the US.
The scientists found that mustard seeds are toxic to rats, which are also sensitive to toxicants, and that the toxicant levels were higher than those found on conventional mustard seeds.
“There is no other way to get the results, which shows the importance of the mustard seeds in food,” said Michael Gartrell, an assistant professor of microbiology at the New York University School of Medicine.
“This study shows that the toxicity to rats is actually very low.”
Sauer said that mustard seed can also cause a number of other health problems, including skin problems, allergies, and gastrointestinal problems.
“We need to get our focus back on prevention, which involves minimizing exposure to toxic substances,” he said.
The study found that most of the toxicants detected on mustard seeds were similar to ones that cause health problems in humans.
For example, the most toxic substance was thiophosphate, which causes an inflammatory response.
But in other cases, the chemicals were not harmful.
“Thiophosulfonylsulfonic acid is also very toxic to the skin,” said Sauer.
“That is because of the way the chemical behaves.
It can react with the skin to produce some very bad reactions.
It is a very, very potent toxin.”
In general, the amount of the chemicals detected varied by type of seed, with the most commonly used mustard seed containing about 2.5 times more THIs and 3.6 times more TSHEs than conventional seed.
“It is important to note that these results are only from one test,” said Gartrel.
“Other studies, which have shown the toxicity of some of these chemicals in rats, may show different results.
There are other things we need to look at to get a better picture of the toxicity.”
For more on the study and other chemicals found in the mustard family, visit: http://www.nature.com/articles/srep2095/full/s0893550a.html#ixzz1p7q9T1P8A