JSCh
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Chinese ‘gutter oil’ is even more disgusting than it sounds
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JSCh
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Gutter oil to be used as auto fuel
A China Eastern Airlines ground crew fills an airliner with biofuel made from gutter oil and palm oil at Shanghai Hongqiao International Airport on April 14. The Airbus A320 succesfully made a one-and-a-half hour test flight with the fuel. CHEN FEI / XINHUA
Processed gutter oil is expected to be used as bus fuel within two years in Shanghai, as part of efforts to advance a circular economy and prevent recycled cooking oil from returning to the kitchen.
The Shanghai Municipal Food Safety Committee will cooperate with Tongji University and six businesses that process used cooking oil into biodiesel that can power vehicles, said Yan Zuqiang, the committee's director, in an interview with a local news portal on Saturday.
A China Eastern Airlines ground crew fills an airliner with biofuel made from gutter oil and palm oil at Shanghai Hongqiao International Airport on April 14. The Airbus A320 succesfully made a one-and-a-half hour test flight with the fuel. CHEN FEI / XINHUA
Processed gutter oil is expected to be used as bus fuel within two years in Shanghai, as part of efforts to advance a circular economy and prevent recycled cooking oil from returning to the kitchen.
The Shanghai Municipal Food Safety Committee will cooperate with Tongji University and six businesses that process used cooking oil into biodiesel that can power vehicles, said Yan Zuqiang, the committee's director, in an interview with a local news portal on Saturday.
JSCh
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Major advance to halt flow of 'gutter oil'
A community worker (center) in Shanghai recycles used cooking oil on March 6. Public concern over illegal oil pushed Chinese scientists to find ways to fight against "gutter oil". (Wu Kai / for China Daily)
University experts say new kit can test purity in one minute
Chinese scientists say they have made a major breakthrough in the battle against "gutter oil" — illegal cooking oil recycled from waste oil collected from sources such as restaurant fryers and drains.
Experts at the University of the Chinese Academy of Sciences have unveiled a kit that can test the purity of cooking oil in one minute.
The breakthrough comes as authorities continue to crack down on the illegal collection and reselling of waste oil to restaurants and supermarkets.
The test kit works by placing a small sample of any cooking oil in a test tube with a burgundy-colored reagent and then shaking them, co-creator He Yujian said.
"If the color doesn't change, the oil is safe," he said. However, if it becomes lighter, the mixture can be compared with a color chart that shows the severity of the contamination.
The change can be seen if the proportion of illegal oil in the sample is 5 percent or more, the professor of chemistry and chemical biology said.
For sellers of illegal oil to make a profit, the proportion of recycled oil in their products needs to be at least 5 to 10 percent, He said, adding that the test kit is suitable for most oils on the market in China.
The university team has spent nearly two years developing the reagent, with the aim of making detection easy, fast and cheap.
The professor said he is looking for an enterprise to manufacture the kit.
"I'm a scientist, so I don't know how to market a product. But the method is already mature," he said. "I'd say if any company was interested, it would take less than a month for industrial manufacture."
The term "gutter oil" usually refers to oil collected by using three illegal methods — oil skimmed from kitchen wastewater, oil reused several times by a kitchen (such as from a deep-fat fryer) and oil extracted from animal fat.
"All illegal cooking oil contains molecules that do not exist in normal oil," He said. "So we created a reagent that reacts with these molecules and changes color."
Most other detection methods require sophisticated laboratory instruments, He said.
"But it's simply not possible for law enforcement officials to take huge instruments with them when they conduct routine checks at small restaurants and markets."
Public concern over illegal oil began to grow in 2011 when police cracked a cross-province case. But a laboratory test could identify only two out of 10 oil samples from the illegal workshops.
By May last year, the Ministry of Health (later merged to form the National Health and Family Planning Commission), had received 762 proposed methods from the public for detecting illegal cooking oil.
The commission chose seven — four laboratory methods and three immediate tests, without disclosing the methods to the public.
However, at least one expert is not confident about testing illegal oil.
"Illegal oil is especially complex to detect," Liu Zhihong, a chemistry professor at Wuhan University, was quoted as saying by Nanfang Daily.
Liu said there is no flawless method yet to recognize all illegal oil. Some methods, like nuclear magnetic resonance and gas chromatography, are too time-consuming and too expensive.
But He, from the University of the Chinese Academy of Sciences, said, "Based on laboratory results, our reagent has an accuracy rate of about 96 percent, which is enough for initial inspection and detection."
He estimated the cost for each test using the reagent to be no more than 0.5 yuan ($8 cents).
Meng Lingren, 20, a consumer from Beijing, is not confident about the reagent being available to individual buyers.
"Richer families prefer buying big brands or imported products, while people with lower incomes generally may care less about the oil quality," he said.
Meng believes the reagent alone is far from sufficient to protect consumers.
"The quality test, although with good intentions, will have little effect if there are no channels for individual consumers to complain about the gutter oil they find, along with severe punishment for the manufacturers," he said.
A community worker (center) in Shanghai recycles used cooking oil on March 6. Public concern over illegal oil pushed Chinese scientists to find ways to fight against "gutter oil". (Wu Kai / for China Daily)
University experts say new kit can test purity in one minute
Chinese scientists say they have made a major breakthrough in the battle against "gutter oil" — illegal cooking oil recycled from waste oil collected from sources such as restaurant fryers and drains.
Experts at the University of the Chinese Academy of Sciences have unveiled a kit that can test the purity of cooking oil in one minute.
The breakthrough comes as authorities continue to crack down on the illegal collection and reselling of waste oil to restaurants and supermarkets.
The test kit works by placing a small sample of any cooking oil in a test tube with a burgundy-colored reagent and then shaking them, co-creator He Yujian said.
"If the color doesn't change, the oil is safe," he said. However, if it becomes lighter, the mixture can be compared with a color chart that shows the severity of the contamination.
The change can be seen if the proportion of illegal oil in the sample is 5 percent or more, the professor of chemistry and chemical biology said.
For sellers of illegal oil to make a profit, the proportion of recycled oil in their products needs to be at least 5 to 10 percent, He said, adding that the test kit is suitable for most oils on the market in China.
The university team has spent nearly two years developing the reagent, with the aim of making detection easy, fast and cheap.
The professor said he is looking for an enterprise to manufacture the kit.
"I'm a scientist, so I don't know how to market a product. But the method is already mature," he said. "I'd say if any company was interested, it would take less than a month for industrial manufacture."
The term "gutter oil" usually refers to oil collected by using three illegal methods — oil skimmed from kitchen wastewater, oil reused several times by a kitchen (such as from a deep-fat fryer) and oil extracted from animal fat.
"All illegal cooking oil contains molecules that do not exist in normal oil," He said. "So we created a reagent that reacts with these molecules and changes color."
Most other detection methods require sophisticated laboratory instruments, He said.
"But it's simply not possible for law enforcement officials to take huge instruments with them when they conduct routine checks at small restaurants and markets."
Public concern over illegal oil began to grow in 2011 when police cracked a cross-province case. But a laboratory test could identify only two out of 10 oil samples from the illegal workshops.
By May last year, the Ministry of Health (later merged to form the National Health and Family Planning Commission), had received 762 proposed methods from the public for detecting illegal cooking oil.
The commission chose seven — four laboratory methods and three immediate tests, without disclosing the methods to the public.
However, at least one expert is not confident about testing illegal oil.
"Illegal oil is especially complex to detect," Liu Zhihong, a chemistry professor at Wuhan University, was quoted as saying by Nanfang Daily.
Liu said there is no flawless method yet to recognize all illegal oil. Some methods, like nuclear magnetic resonance and gas chromatography, are too time-consuming and too expensive.
But He, from the University of the Chinese Academy of Sciences, said, "Based on laboratory results, our reagent has an accuracy rate of about 96 percent, which is enough for initial inspection and detection."
He estimated the cost for each test using the reagent to be no more than 0.5 yuan ($8 cents).
Meng Lingren, 20, a consumer from Beijing, is not confident about the reagent being available to individual buyers.
"Richer families prefer buying big brands or imported products, while people with lower incomes generally may care less about the oil quality," he said.
Meng believes the reagent alone is far from sufficient to protect consumers.
"The quality test, although with good intentions, will have little effect if there are no channels for individual consumers to complain about the gutter oil they find, along with severe punishment for the manufacturers," he said.
iam not greek
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Yuck, that's disgusting. Chinese have record of such fake and disgusting cheap products.
As if throwing poor out of cities and confining them to 'god knows where' was not enough that they are now serving these people with such a poop quality oil.
As if throwing poor out of cities and confining them to 'god knows where' was not enough that they are now serving these people with such a poop quality oil.
dray
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INDIC
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I never thought that anyone can even create fake eggs and fake plastic rice to earn profit.
JSCh
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About the fake egg, I remember reading a news report of a interview with the Chinese version of official agency for food safety. The agency claim that so far they didn't received a single case of real fake egg(fake egg that are actually fake). All the reported cases of fake egg would be found to be real egg after lab test. What happen is, some egg were deep freeze for long distance transportation and that would change the elasticity of the egg york making them behaving differently from real egg.
I am too lazy to dig up the link, so you just have to take my word for it. It is in Chinese anyway.
And for the plastic rice, I have never heard of it and too lazy to google. Anyway it sound too ludicrous that only the really gullible would fall for it.
China do have food safety problem, and like in the case of the "gutter oil", the Chinese government is working with the Chinese public together to tackle the problem. And in time, the problem would be solved.
Chinese citizen is well aware of both the problem itself AND the government effort/process in dealing with the problem.
I am too lazy to dig up the link, so you just have to take my word for it. It is in Chinese anyway.
And for the plastic rice, I have never heard of it and too lazy to google. Anyway it sound too ludicrous that only the really gullible would fall for it.
China do have food safety problem, and like in the case of the "gutter oil", the Chinese government is working with the Chinese public together to tackle the problem. And in time, the problem would be solved.
Chinese citizen is well aware of both the problem itself AND the government effort/process in dealing with the problem.
dray
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There are videos on internet showing in detail how to make fake eggs, I have to check for fake rice. But plastic is very dangerous, may be they use a very thin layer of it to hold the shape, but still it is dangerous.
Capt.Popeye
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Do not underestimate the human digestive system. People in China may have better developed digestive systems than humans in the rest of the world. Chairman Miao did spend many years working on the both the psyche and physiology of his people.
JSCh
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Yes, I do know there are video showing if I remember a university student making fake egg. But it is just a video. The authenticity could not be checked. Anyway, FYI fake egg is fringe news, there are numerous report but never truly substantiated.
Maybe given you guy set mentality, you would not believe this, but if fake egg is a real risk, the Chinese government would have put it in prime CCTV news and measures taken, but that did not happened.
Bad thing do happened in China just like everywhere else, it is a billion plus people going through changes in break neck speed, but it is definitely not like what western media is trying to lead you to believe. These media is designed to fool people outside China, because for people that lived inside, it wouldn't work because it is obviously not as they described.
These things are like urban myths, but if you insist on believing it, that is your problem. I cannot run round all days busting all the crazy thing that just pop up at random.
profit at the expense of lives!!!
shuttler
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cheerleaders:
Read post #258 of the following thread and the above #16 to 18 by @JSCh
https://defence.pk/threads/china-prepares-to-spend-billions-on-science-and-technology.249386/page-18
I am very confident we are better, much better in cleaning up our acts done by some of our social scumbags than failed state india!
Read post #258 of the following thread and the above #16 to 18 by @JSCh
https://defence.pk/threads/china-prepares-to-spend-billions-on-science-and-technology.249386/page-18
I am very confident we are better, much better in cleaning up our acts done by some of our social scumbags than failed state india!
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