日韩精品久久一区二区三区_亚洲色图p_亚洲综合在线最大成人_国产中出在线观看_日韩免费_亚洲综合在线一区

Probe reveals toxins in edible bird's nests

Updated: 2011-08-18 08:01

By Zhou Wenting (China Daily)

  Comments() Print Mail Large Medium  Small 分享按鈕 0

BEIJING - A national campaign has begun to ensure the safety of edible bird's nests after a spot check found a carcinogenic industrial chemical in samples of the food.

China's market watchdogs are being required to carry out inspections of cubilose, the edible component in bird's nests, and to order distributors to stop selling those products if they do not meet safety standards. Substandard products will be banned from shelves and destroyed, said a notice on the State Administration for Industry and Commerce's website.

The notice, which was posted on Tuesday, also called for an investigation into instances in which fake cubilose is known to have been sold.

The national inspection stems from a spot check conducted on more than 30,000 cups of red cubilose in East China's Zhejiang province. The results showed that some of the samples contained more than 350 times the amount of nitrite that health standards allow to be used in the curing of meat.

Nitrite is a toxic substance that is highly carcinogenic, food experts said.

"Frequently ingesting the chemical in small amounts will lead to chronic poisoning and cancer of the digestive system," said Fan Zhihong, an associate professor with China Agricultural University's college of food science and nutrition engineering. "It can be life-threatening in some cases."

The substandard products found in Zhejiang were mainly imported from Malaysia, according to the Zhejiang Administration for Industry and Commerce, the provincial market watchdog.

Some industry experts said it is hard to know if the nitrites occur naturally in cubilose. Others, though, said people must be to blame if the concentration of the chemical exceeds the standard by that much.

"Nitrite is used as a preservative in curing meat, and to make meat redder," said Fan Shengwu, deputy secretary-general of the Henan Provincial Restaurants Association.

"So criminals might add it to cubilose to make it the red variety, which sells at a higher price."

A salesman at a Hedantang drug store in Beijing's Chaoyang district said red cubilose often costs about 15 percent more than the white variety.

"But the red type hasn't been sold for a long time, largely because the quality and safety of the supply cannot be guaranteed," said the pharmaceuticals salesman, who declined to give his name.

Some dealers admitted to law enforcement officials in the Zhejiang Administration for Industry and Commerce that red cubilose is made from the white variety, and large amounts of nitrite are produced during that process.

Red cubilose forms after swiftlets, a type of bird, have built their nests in caves, Fan Shengwu said. Water dripping off the cave rocks carries minerals into the nests and those minerals then mix with other materials to make the substance.

"It commands a higher price because the minerals are believed to make it more nutritious and more rare," Fan said.

Experts said cubilose is subject to little oversight because it doesn't fall into a regulatory category.

"It is not listed on the national list of drugs or of health food," said Lu Guoping, secretary-general of the Shanghai Pharmaceutical Trade Association. "We cannot even tell if it's traditional Chinese medicine or a food."

Some experts said they doubt that cubilose is nutritious. The substance has long been believed to contain various water-soluble proteins and amino acids.

"In fact, we know too little about cubilose," Fan Zhihong said. "Most of what we have comes from traditions. We have no scientific proof showing how good it is for people's health.

"We can absorb protein from various foods, such as chicken and milk. So there is no need to eat this luxury product to get protein."

主站蜘蛛池模板: 成人在线中文字幕 | 99久久久无码国产精品 | 免费又粗又硬进去好爽A片视频 | 91亚洲国产成人精品性色 | 国产亚洲精品精品国产亚洲综合 | 亚洲在线一区二区三区 | 精品久久洲久久久久护士免费 | 精品久久久久一区 | 国产综合亚洲精品一区二 | 成人在线免费观看网站 | 日韩五月 | 久久一级| 精品av| 色婷婷视频在线 | 中文字幕一区在线观看视频 | 日韩精品一区二区三区 | 亚洲网站在线免费观看 | 亚洲欧美日韩另类精品一区二区三区 | 欧美成人免费在线视频 | 亚洲成av | 欧美日韩综合在线视频免费看 | 一级黄色毛片视频 | 欧美妇人 | 久久久久免费观看 | 天天狠天天干 | 亚洲国产精品久久人人爱 | 亚洲第一男人天堂 | 国产男女自拍视频 | 亚洲欧美成人综合在线 | 一级片观看| 成人在线中文字幕 | 一级毛片观看 | 五月天婷婷在线视频 | 在线播放av片 | 欧美成人午夜免费完成 | 91成人影院未满十八勿入 | 激情a | 国产精品亲子伦av一区二区三区 | 国产成人91激情在线播放 | 日韩一区二区在线观看视频 | 久久中文字幕美谷朱里 |