The cockroach, whose innards resemble cottage cheese, has an earthy taste,
with a slight twinge of ammonia. But they have become popular in China not
for their taste, but for their medicinal benefits.
"They really are a miracle drug," said Liu Yusheng, a professor at
the Shandong Agricultural university and the head of Shandong province's
Insect Association. "They can cure a number of
ailments and they work
much faster than other medicine."
Prof Liu said a cream made from powdered cockroaches is in use in some Chinese
hospitals as a treatment for burns and in Korea for cosmetic facial masks.
Meanwhile, a syrup invented by a pharmaceutical company in Sichuan promises to
cure gastroenteritis, duodenal ulcers and pulmonary tuberculosis.
"China has the problem of an ageing population," explained Prof Liu. "So
we are trying to find new medicines for older people, and these are
generally cheaper than Western medicine. Also we have a tradition of eating
bugs here in Shandong."
For a decade, Mr Wang farmed another type of insect, Eupolyphaga Sinensis,
which is also used in Traditional Chinese Medicine.
Mr. Wang the leading cocroach farmer in Shandong Province |
But in the past two years, the demand for cockroaches has soared, and Mr Wang
has switched his entire production to Periplaneta americana, or the American
cockroach, a copper-coloured insect that grows to just over an inch and a
half.
"These are not the same ones you see in your home, those are German
cockroaches," he said. "There are hundreds of species of
cockroaches, but only this one has any medicinal value. It is native to
Guangdong province."
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