己酸乙酯

研究制备了PEG柱，将其应用于浓香型白酒检测酒中己酸乙酯和乳酸乙酯含量，实践证明，PEG柱分离效果较好，检测速度快，结果准确，且经济耐用。

The preparation of PEG column and its application in the determination of the contents of ethyl caproate and ethyl lactate in Luzhou-flavor liquors had proved its superiorities including comparatively better separation effects , rapid determination operation , accurate determination results and economic durability .

纳米复合杂多酸催化合成己酸乙酯的研究

Study on Catalytic Synthesis of Ethyl Caproate by Nanometer Complex Heteropoly Acid

固体超强酸SO4~（2-）／Fe2O3-CoO催化合成己酸乙酯

Synthesis of isoamyl acetate by the solid superacid SO_4 ~ ( 2 - ) / Fe_2O_3-CoO as catalyst

诱变菌2113脂肪酶合成酶活的较大提高导致催化合成己酸乙酯能力明显增强，反应15h的转化率达到90%以上，所需时间只为出发菌的15.6%。

Ethyl hexanoate synthesis mediated by Mutant 2113 lipase had 90 % conversion at 15h reaction time that was 15.6 % of contrast .

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；

Ethyl caproate content in fermenting liquor ( produced by addition of M-6 ) was over two times of that in contrast liquor .

将不同培养时间的RhizopusChinensis-2全细胞脂肪酶用于催化己酸乙酯合成，具有高合成酶活的全细胞脂肪酶催化己酸乙酯合成反应较快。

Rhizopus chinensis - 2 whole-cell lipases of different culture time were used to catalyze synthesis of ethyl hexanoate and whole-cell lipase with high synthetic activity catalyzed esterification quickly .

有机介质中酶催化合成己酸乙酯的研究

Study on Enzymatic Synthesis of Ethyl Caproate in Organic Medium

碱性脂肪酶在正庚烷中催化合成己酸乙酯的研究

Alkaline Lipase Catalyzed Syntheses of Ethyl Hexanoate in Heptane

入窖酸度以1.8～2.0为佳，能生成较多的己酸乙酯。

Pit entry acidity as 1.8 ~ 2.0 , which could produce more ethyl caproate ;

己酸乙酯含量的测定

Measuring of The Content of Acetic Ester

气相色谱内标法测定浓香型白酒己酸乙酯含量的不确定度评定

Gas Chromatography Internal Standard Method for the Uncertainty Evaluation of Ethyl Caproate Content Measurement in Luzhou-flavor Liquor

己酸乙酯的提取：在比较了蒸馏产物分离方式的基础上，成功地用减压蒸馏提取出己酸乙酯。

Ethyl Hexanoate extraction : On basis of comparing product-collecting methods , vacuum distilling was selected and used successfully .

主体风味成分是己酸乙酯、苯乙醇、辛酸和辛酸乙酯。

The major aromas were hexylic acid ethyl ester , benzyl ethanol , octylic acid and octylic acid ethyl ester .

己酸乙酯生产工艺中采用硫酸做催化剂，会产生大量的工艺废水，对环境不利。

The old production process of ethyl caproate using sulfuric acid as catalyst produces large amount of waste water which is harmful to environment .

酯化酶增香技术可用于传统固态白酒，可使己酸乙酯含量成倍增加；

The content of ethyl caproate increased by times when the flavour-enhancing technique of esterase was used in the traditional production of solid fermentation liquor .

例如汾酒中以乙酸乙酯和乳酸乙酯为主体香，而己酸乙酯含量甚微。

For instance , the main body flavoring components in Fen-flavor liquors were ethyl acetate and ethyl lactate but just slight content of ethyl caproate .

酒鬼酒的己酸乙酯和乙酸乙酯含量突出，二者呈平行的量比关系；

Ethyl acetate content and ethyl caproate content in the liquor were evidently high ( The two substance showed parallel quantity relative ratio relation ) .

此外，还检测出乙酸乙酯、丁酸乙酯、己酸乙酯等猕猴桃特征香气成分。

And some characteristics of aroma components of kiwifruit were detected such as ethyl acetate ; butanoic acid , ethyl ester and hexanoic acid , ethyl ester etc.

生产实践证明，选用有机物培养的老窖泥，能够逐步提高浓香型原酒中己酸乙酯含量。

The production practice showed that the selection of organic substances for the culture of aged pit mud could gradually enhance ethyl acetate content in Luzhou-flavor base liquor .

浓香型白酒的风格及酒质的优劣，主要取决于酒体中己酸乙酯含量的高低以及与其它酯类物质的比例是否协调。

Luzhou-flavor liquor style and the advantages and disadvantages of wine quality depend on the level of ethyl esters in the wine contents as well as the co-ordination with other substances .

特别对冷混浊，指出其真正原因是由于己酸乙酯而非高级脂肪酸酯；

The concrete reason and solution for these problems , the special rightness to cold-turbid , point out that real reason is because of ethyl hexanoate rather than deluxe fatty acides ester .

以46种白酒为样本，以每个样本的乙酸乙酯、己酸乙酯等17种香味成分的气相色谱、气质联用定性定量分析数据和感官评价结果为指标，用聚类分析研究了白酒香型数据。

Based on the data of17 flavor components in46 samples that were obtained by GC , GC-MS and sensory evaluation the cluster analysis was used in the aroma recognition of the samples .

结果表明：两种啤酒中都分离出8种挥发性风味组分，分别为乙醛、正丙醇、乙酸乙酯、异丁醇、异戊醇、乙酸异戊酯、己酸乙酯和辛酸乙酯。

The result showed that eight compounds , i.e. acetaldehyde , N-propanol , ethyl acetate , isobutyl alcohol , isoamyl alcohol , isoamyl acetate , ethyl hexanoate and ethyl octanoate were separated thoroughly .

根霉酯化酶具有多向合成功能，既能同时合成浓香型酒己酸乙酯为主体香的四大酯，也可单一合成纯己酸乙酯，还可合成稀有酯类。从香味强度来探讨各类名酒的主体香

Esterifying enzyme of Rhizopus sp. not only has the ability to synthesize ethyl hexanoate but also synthesize other esters . INVESTIGATION OF THE MAIN TYPE BOUQUET FOR VARIOUS FAMOUS LIQUOR BY THE INTENSITY OF AROMA

生产实践表明，效果很好，所产酒己酸乙酯和总酯较高，乳酸乙酯相对较低。

The production practice indicated that the manmade pit mud had satisfactory production effects , and liquor made by it had higher ethyl caproate content and total ester content and comparatively lower ethyl lactate content .

又如己酸乙酯为浓香型酒主体香味成分，但清香型也同样含有己酸乙酯，只是量比不同，造成了风格迥异。

Again , ethyl caproate , the main flavoring component of Luzhou-flavor liquors , also containes in Fen-flavor liquors , but the different quantity relative ratio of ethyl caproate resultes in widely different liquor styles .

基础酒经大水泥池贮存后，己酸乙酯、乳酸乙酯、丁酸乙酯在7～8个月达到最高值，故以7～8个月贮存期为宜；

The contents of ethyl caproate , ethyl lactate and ethyl butyrate in base liquor reached the maximum values after 7-8 months storage in cement pits ( accordingly , 7 ~ 8 months is the best storage period ) .

生产的新工艺白酒的主要理化指标如酒精度、总酸、总酯、己酸乙酯含量、固形物及卫生指标和调加的其他添加剂必须符合国标要求。

Besides , the main physiochemical indexes of new craft liquor including alcohol content , total acid , total ester , the content of ethyl caproate , solids , and other additives must meet the requirements of national standards .

用有机溶剂处理菌体细胞，有机相酯化2天，己酸乙酯酯化率可达98%，在无溶剂相系统中酯化30天，酯化率可达70%以上。

Thallus cells , managed by organic solvent and two-day organic phase esterification , the esterification rate of its ethyl caproate could achieve 98 % and it could achieve 70 % if managed by thirty-day esterification in solventless phase system .

研究了以固体超强酸SO2-/TiO2/La3+为催化剂，己酸和无水乙醇为原料合成己酸乙酯，并考察了影响反应的因素。

Synthesis of ethyl hexanoate from ethyl alcohol and hexanoic acid with solid superacid SO 2 - 4 / TiO 2 / La 3 + as catalyst was studied .