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科学美国人60秒 SSS 田纳西威士忌口感特别的秘密

时间:2019-12-31 06:37来源:互联网 提供网友:nan   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 Christopher Intagliata.

Bourbon whiskey doesn't have to be made in Bourbon County, Kentucky. But it does have to be produced from at least 51 percent corn and be aged1 in unused charred2 oak barrels.

Tennessee whiskey, on the other hand, must be made in Tennessee, as the name implies. And in? addition to the steps that create a bourbon, the distilled3 whiskey undergoes another one called the Lincoln County Process, "where you take your fresh whiskey distillate and you filter it through sugar maple4 charcoal5. It's also called charcoal mellowing7."

Trent Kerley is a graduate student in food science at the University of Tennessee Institute of Agriculture. And just for the record: "Personally, I prefer bourbon whiskeys."

Filtration through charcoal made from the wood of the sugar maple tree is known to mellow6 the flavor of Tennessee whiskeys like Jack8 Daniels. But the underlying9 chemistry was a bit more of a mystery. So Kerley t?eamed up with the Sugarlands Distilling10 Company in Gatlinburg, Tennessee to put their whiskey to the test.

He used gas chromatography, coupled with human sniffing11, to identify about three dozen aromatic12 compounds contributing to the whiskey's flavor profile. He then tracked the quantities of four of them — two branched alcohols and two ethyl esters — before and after the Lincoln County Process. Turns out the charcoal stripped out a third of the branched alcohols and nearly half of the ethyl esters. Kerley's advisor13, food chemist John Peter Munafo:

"Take-home message is that branched alcohols and the ethyl esters that we analyzed14 in this study decreased, and the distillate was smoother tasting and less harsh after the Lincoln County Process." The researchers presented the work at an American Chemical Society meeting in Orlando.

The goal, Kerley says, is to take some of the guesswork out of making great whiskey — especially when the stakes are high. "There was a head distiller at one of the big bourbon distilleries who said, you really only get two chances to make a 15-year-old whiskey." Munafo again: "Basically we're just optimizing15 the tools to help the distillers get to the flavor profile they want."

As for the flavor profile he wants? "Well, I'm not saying Tennessee whiskey is better. It just is."

Thanks for listening for Scientific American — 60-Second Science. I'm Christopher Intagliata.


点击收听单词发音收听单词发音  

1 aged 6zWzdI     
adj.年老的,陈年的
参考例句:
  • He had put on weight and aged a little.他胖了,也老点了。
  • He is aged,but his memory is still good.他已年老,然而记忆力还好。
2 charred 2d03ad55412d225c25ff6ea41516c90b     
v.把…烧成炭( char的过去式);烧焦
参考例句:
  • the charred remains of a burnt-out car 被烧焦的轿车残骸
  • The intensity of the explosion is recorded on the charred tree trunks. 那些烧焦的树干表明爆炸的强烈。 来自《简明英汉词典》
3 distilled 4e59b94e0e02e468188de436f8158165     
adj.由蒸馏得来的v.蒸馏( distil的过去式和过去分词 );从…提取精华
参考例句:
  • The televised interview was distilled from 16 hours of film. 那次电视采访是从16个小时的影片中选出的精华。 来自《简明英汉词典》
  • Gasoline is distilled from crude oil. 汽油是从原油中提炼出来的。 来自《简明英汉词典》
4 maple BBpxj     
n.槭树,枫树,槭木
参考例句:
  • Maple sugar is made from the sap of maple trees.枫糖是由枫树的树液制成的。
  • The maple leaves are tinge with autumn red.枫叶染上了秋天的红色。
5 charcoal prgzJ     
n.炭,木炭,生物炭
参考例句:
  • We need to get some more charcoal for the barbecue.我们烧烤需要更多的碳。
  • Charcoal is used to filter water.木炭是用来过滤水的。
6 mellow F2iyP     
adj.柔和的;熟透的;v.变柔和;(使)成熟
参考例句:
  • These apples are mellow at this time of year.每年这时节,苹果就熟透了。
  • The colours become mellow as the sun went down.当太阳落山时,色彩变得柔和了。
7 mellowing 8d64428870d69b7a07ec5af2679fae65     
软化,醇化
参考例句:
  • Sticking small needles into the hammer's felt creates mellowing. 在琴槌的毛毡上粘上小针以使音色圆润。
8 jack 53Hxp     
n.插座,千斤顶,男人;v.抬起,提醒,扛举;n.(Jake)杰克
参考例句:
  • I am looking for the headphone jack.我正在找寻头戴式耳机插孔。
  • He lifted the car with a jack to change the flat tyre.他用千斤顶把车顶起来换下瘪轮胎。
9 underlying 5fyz8c     
adj.在下面的,含蓄的,潜在的
参考例句:
  • The underlying theme of the novel is very serious.小说隐含的主题是十分严肃的。
  • This word has its underlying meaning.这个单词有它潜在的含义。
10 distilling f3783a7378d04a2dd506fe5837220cb7     
n.蒸馏(作用)v.蒸馏( distil的过去式和过去分词 )( distilled的过去分词 );从…提取精华
参考例句:
  • Water can be made pure by distilling it. 水经蒸馏可变得纯净。 来自《简明英汉词典》
  • More ammonium sulphate solution is being recovered in the process of distilling oil shale. 在提炼油页岩的过程中回收的硫酸铵液比过去多了。 来自《简明英汉词典》
11 sniffing 50b6416c50a7d3793e6172a8514a0576     
n.探查法v.以鼻吸气,嗅,闻( sniff的现在分词 );抽鼻子(尤指哭泣、患感冒等时出声地用鼻子吸气);抱怨,不以为然地说
参考例句:
  • We all had colds and couldn't stop sniffing and sneezing. 我们都感冒了,一个劲地抽鼻子,打喷嚏。
  • They all had colds and were sniffing and sneezing. 他们都伤风了,呼呼喘气而且打喷嚏。 来自《现代英汉综合大词典》
12 aromatic lv9z8     
adj.芳香的,有香味的
参考例句:
  • It has an agreeable aromatic smell.它有一种好闻的香味。
  • It is light,fruity aromatic and a perfect choice for ending a meal.它是口感轻淡,圆润,芳香的,用于结束一顿饭完美的选择。
13 advisor JKByk     
n.顾问,指导老师,劝告者
参考例句:
  • They employed me as an advisor.他们聘请我当顾问。
  • The professor is engaged as a technical advisor.这位教授被聘请为技术顾问。
14 analyzed 483f1acae53789fbee273a644fdcda80     
v.分析( analyze的过去式和过去分词 );分解;解释;对…进行心理分析
参考例句:
  • The doctors analyzed the blood sample for anemia. 医生们分析了贫血的血样。 来自《简明英汉词典》
  • The young man did not analyze the process of his captivation and enrapturement, for love to him was a mystery and could not be analyzed. 这年轻人没有分析自己蛊惑著迷的过程,因为对他来说,爱是个不可分析的迷。 来自《简明英汉词典》
15 optimizing 56a2ad080ec9d3c4cf573c347d6de828     
v.使最优化,使尽可能有效( optimize的现在分词 );最佳化;寻优
参考例句:
  • This model may be classified as either an optimizing model or simulation model. 这个模型可分为最佳化模型或模拟模型。 来自辞典例句
  • Need to design crossover operator rationally while optimizing ANN. 优化网络需要合理设计交叉算子。 来自互联网
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TAG标签:   科学美国人60秒  英语听力  sss
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