乙酯

Both in green house and in the open field ,relative content and total content of characteristic aroma components:of butanoic acid, methyl ester; butanoic acid, ethyl ester; hexanoic acid, methyl ester; hexanoic acid, ethyl ester; DMHF; DMMF trended to increase and then decline with the increment of nitrogen fertilizer, and the highest was the Mid-N fertilizer treatment. So favorable nitrogen application can promote the process of fruit aroma, that is , feasible fertilizer application could enhance fruit flavor.

在温室和露地两种栽培条件下，除成熟草莓果实的特征香气成分丁酸甲酯、丁酸乙酯、己酸甲酯、己酸乙酯、DMHF、DMMF的相对含量和总量均是随施氮量增加先增加后减少，中量氮肥处理最高，合理的施氮量有利于果实香气的形成，即适宜的施肥量有利于增进果实风味。3。

Ethyl caproate and ethyl lactate are the main flavour components of Luzhou－flavour liquor and their ratio is the key to the style and flavour of the liquor.

摘 要：己酸乙酯和乳酸乙酯是浓香型白酒风味物质的主体成分，己、乳比是影响浓香型白酒风味、风格的关键。

In order to improve interlayer pit mud fermentation, self-made pit mud fermenter was used and pit mud functional bacteria were supplied in each turn of fermentation. Such measures could evidently increase contact area between fermented grains and pit mud, enhance ethyl caproate content in fermented grains (enhanced by almost three times than before) with no adverse influence on liquor yield, and improve liquor quality. Its application could effectively settle the problems such as pit mud odor in liquor, difficult operation, recycle use and unsatisfactory effects etc.

采用自制夹泥发酵器和每轮补充窖泥功能菌的夹泥发酵法进行浓香型白酒生产，结果表明，该方法能明显增大糟醅接触窖泥的面积；提高糟醅中己酸乙酯等香味物质的含量，己酸乙酯的含量比对照糟醅增加了近3倍；不影响曲酒的出酒率；可明显提高曲酒的质量；有效地解决了窖泥易进入糟醅，使酒中出现明显的窖泥味、操作困难、难以循环使用、效果不明显等问题。

The trial use of M-6 in Xifeng Luzhou-flavor liquor had achieved satisfactory effects compared with contrast samples: evident increment of ethyl caproate content, pure and mellow liquor flavor, enjoyable liquor aftertaste and clean liquor body, and better liquor quality.

在酿酒生产试用中，加红曲霉M-6生产的麸曲发酵酒比对照酒己酸乙酯高2倍多；在西凤浓香酒生产中试用效果比较明显，产酒己酸乙酯增高，酒窖香纯正浓郁、酒体醇厚爽净、回味好，质量优于对照样。

Sesame-flavor liquor (produced by the combination of Luzhou-flavor liquor production techniques, Maotai-flavor liquor production techniques and Fen-flavor production techniques) contains multiple flavoring compositions including ethyl acetate, ethyl caproate, pyrazine, furan, phenols, thiazole and sulfur compound etc. The coexistence of those flavoring compositions in proper proportion finally forms the special sesame flavor.

其与浓清酱工艺的巧妙结合，香气成分复杂，除含适量的乙酸乙酯、己酸乙酯外，主要还含类似焦香的吡嗪类与呋喃类、酚类、噻唑、含硫化合物等成分，这些成分以适当的比例共存时才能构成芝麻香的特有香气。

So the ester type cinchona alkaloid derivatives should be the preferable catalysts for the IFB reaction withβ-phenyl substituted bromoketones as substrate.

由此可知，这类以酯键形成的金鸡纳生物碱衍生物适于催化β-苯取代溴乙酰甲酸乙酯为底物的IFB反应。

The main component was methoxy-ethyl cinnamate with content of 40.96%,next was ethyl cinnamate with content of 23.68%.

主要成分是对甲氧基肉桂酸乙酯，含量为40.96%；其次是肉桂酸乙酯，含量为23.68%。

The results showed that the condign technical conditions for preparing the composite were 30℃ for the reaction temperature, 0.8/1 for the molar ratio of ethyl acetate and SiO2, and 6.5% for the concentration of water glass.

结果表明，制备SiO2/NR复合材料较适宜的复合工艺为院水玻璃与乙酸乙酯反应温度30益，乙酸乙酯和水玻璃溶液中所含SiO2的摩尔比n为0.8∶1，水玻璃浓度为6.5%。

hydantoin was synthesized from diethyl malonate comprising condensation with 1, 2-dichloroethane, ammonolysis to diamide, Hoffmann degradation to give 5-cyclopropanespirohydantoin, and ring-opening with 40% hydrobromic acid.

以丙二酸二乙酯为原料，先与1， 2-二氯乙烷缩合生成1， 1-环丙烷二羧酸二乙酯，再经氨解生成1， 1-环丙烷二甲酰胺，然后在次氯酸钙溶液中进行Hoffmann降解成环生成5-环丙螺海因，最后在40%氢溴酸中开环得到5-溴乙基海因。

Ethyl acetate is one of the most important chemical solvents;nowadays it has a very large demand quantity in the whole world, especially in China.

乙酸乙酯是一种非常有用的基本工业溶剂，目前乙酸乙酯在国内外都有很大的需求。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。