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SSS 2010-11-15

时间:2010-12-07 06:51来源:互联网 提供网友:seniorboy   字体: [ ]
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    (单词翻译:双击或拖选)

This is Scientific American’s 60-Second Science. I’m Cynthia Graber. This’ll just take a minute.


Here’s a strange tale of two previously1 unrelated food products. First: chitlins, that delicacy2 of fried pig large intestines3. They’re well-loved throughout the South, especially during the upcoming holiday season. But the smell of them cooking inspires significantly less affection, because the cooking process sometimes smells like, well, feces.

 


Researchers in Japan thought that cilantro could help, because cilantro is used in a variety of cuisines4 around the world to mask smells, as well as to add distinctive5 flavors. And in a previous study, the research team had shown that cilantro can mask the cooking-chitlin stench.

 


In the new research, in the Journal of Agricultural and Food Chemistry, they isolated6 cilantro’s volatile7 compounds and tested each one for its odor-fighting power. Many seemed to lessen8 the stink9, but one in particular, according to human sniffers, entirely10 cancels out the odor.

 


It’s called (E,E)-2,4-Undecadienal. It works at a very low concentration—10 parts per billion—so you can’t smell the compound. It’s not masking the chitlin odor, it’s actually neutralizing11 it. So it’s not just better living through chemistry. It’s better chitlins, too.

 


Thanks for the minute. For Scientific American’s 60-Second Science, I’m Cynthia Graber.


点击收听单词发音收听单词发音  

1 previously bkzzzC     
adv.以前,先前(地)
参考例句:
  • The bicycle tyre blew out at a previously damaged point.自行车胎在以前损坏过的地方又爆开了。
  • Let me digress for a moment and explain what had happened previously.让我岔开一会儿,解释原先发生了什么。
2 delicacy mxuxS     
n.精致,细微,微妙,精良;美味,佳肴
参考例句:
  • We admired the delicacy of the craftsmanship.我们佩服工艺师精巧的手艺。
  • He sensed the delicacy of the situation.他感觉到了形势的微妙。
3 intestines e809cc608db249eaf1b13d564503dbca     
n.肠( intestine的名词复数 )
参考例句:
  • Perhaps the most serious problems occur in the stomach and intestines. 最严重的问题或许出现在胃和肠里。 来自辞典例句
  • The traps of carnivorous plants function a little like the stomachs and small intestines of animals. 食肉植物的捕蝇器起着动物的胃和小肠的作用。 来自辞典例句
4 cuisines 43f81cfb27ea2137d12801c0fe58128f     
n.烹饪( cuisine的名词复数 );菜肴;(通常指昂贵的饭店中的)饭菜;烹饪艺术
参考例句:
  • Could you tell me the different features of these cuisines? 能不能告诉我这些不同的烹调流派各自有哪些特点? 来自地道口语脱口SHOW 高中超越版
  • Ice sculptures are used as decorations in some cuisines, especially in Asia. 冰雕在某些菜肴中被当作装饰品,尤其在亚洲。 来自互联网
5 distinctive Es5xr     
adj.特别的,有特色的,与众不同的
参考例句:
  • She has a very distinctive way of walking.她走路的样子与别人很不相同。
  • This bird has several distinctive features.这个鸟具有几种突出的特征。
6 isolated bqmzTd     
adj.与世隔绝的
参考例句:
  • His bad behaviour was just an isolated incident. 他的不良行为只是个别事件。
  • Patients with the disease should be isolated. 这种病的患者应予以隔离。
7 volatile tLQzQ     
adj.反复无常的,挥发性的,稍纵即逝的,脾气火爆的;n.挥发性物质
参考例句:
  • With the markets being so volatile,investments are at great risk.由于市场那么变化不定,投资冒着很大的风险。
  • His character was weak and volatile.他这个人意志薄弱,喜怒无常。
8 lessen 01gx4     
vt.减少,减轻;缩小
参考例句:
  • Regular exercise can help to lessen the pain.经常运动有助于减轻痛感。
  • They've made great effort to lessen the noise of planes.他们尽力减小飞机的噪音。
9 stink ZG5zA     
vi.发出恶臭;糟透,招人厌恶;n.恶臭
参考例句:
  • The stink of the rotten fish turned my stomach.腐烂的鱼臭味使我恶心。
  • The room has awful stink.那个房间散发着难闻的臭气。
10 entirely entirely     
ad.全部地,完整地;完全地,彻底地
参考例句:
  • The fire was entirely caused by their neglect of duty. 那场火灾完全是由于他们失职而引起的。
  • His life was entirely given up to the educational work. 他的一生统统献给了教育工作。
11 neutralizing 1f9a9888520b7110fb38e89e7840b0f5     
v.使失效( neutralize的现在分词 );抵消;中和;使(一个国家)中立化
参考例句:
  • This juice-about a quart a day--pours into my duodenum, neutralizing acids. 这种消化液(每天约分泌1品脱)流入我的十二指肠,把酸中和了。 来自辞典例句
  • AIM: To verify the role of a synthetic peptide in neutralizing endotoxins. 目的:检验一条合成肽在中和内毒素活性方面的作用。 来自互联网
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