己酸

Insecticidal sucrose octanoate and sucrose caproate were synthesized by transesterification method or reaction of acid chloride with sucrose.

分别以酯交换法和酰氯法合成了辛酸蔗糖酯和己酸蔗糖酯两种杀虫活性蔗糖酯，其中酯交换法产物单酯含量高，而酰氯法反应速度快。

The following points must be highly valued in the development of Luzhou-flavor liquor production techniques: full and objective understanding of liquor development trend in China; further study of Luzhou-flavor pure-grain liquor production without addition of external flavoring substances; elimination of off-flavor in base liquor; persistence in increasing natural growth quantity of ethyl caproate; proper understanding of the relations of liquor-making and liquor blending to advance better development of liquor-making industry.

必须全面、准确、客观地认识中国白酒的发展方向；努力实现浓香型纯粮白酒不添加外加香的目标；解决基酒中的怪杂味；坚持走以增加己酸乙酯的自然生成量为主的质量之路；正确对待白酒的酿造与勾调工作，才能把握和发展浓香型白酒的生产工艺，全面推进白酒业的进步。

With the fermenting very well,and improve Ethy1 caproate content by 500～800mg/L,and improve liquor quality by 2～3fens,and make the base liquor's characteristics of Luzhou-flavor liquor very well,Especially the additi.

在转型期间，添加活性干酵母和糖化酶，可以大大缩短转型期，在生产中添加活性干酵母，可以使主发酵期缩短2~5d，糟醅发酵更彻底，出酒率平均提高3.33%，同时，使酒中己酸乙酯平均提高500~800mg/L，酒质提2~3分，基酒具有很突出的浓香型主体香特征，特别是在度夏醅中使用，可以降低酒醅中的酸度，有效地防止掉排现象。

A mold strain producing ethyl caproate esterifying enzyme was isolated from Luzhou-flavor Daqu and it was identified as aspergillus flavus by Biolog microbes automated identification system.

从浓香型大曲中分离得到1株产己酸乙酯酯化酶霉菌，经Biolog微生物自动分析系统鉴定为黄曲霉。

The application of such esterifying monascus in liquor production could evidently increase total ester content and ethyl caproate content in product liquor and the product liquor had mellow and pure taste with enjoyable aftertaste.

将其应用于酿酒生产，能明显提高成品酒总酯及己酸乙酯含量，生产的成品酒窖香纯正浓郁，酒体醇厚爽净，回味悠长。

The approaches to improve the quality of new craft liquor were summed up as follows: proper selection and treatment of raw materials including alcohol, seriflux, food additives, heading liquor, and ending liquor etc.; scientific liquor body design including the relations between microconstituents and ethyl caproate in Luzhou-flavor lqiuor and the formula of new craft liquor etc; use of traditional liquor production techniques coupled with modern bio-techs, formulation of the quality standards of new craft liquor as soon as possible and strict enterprise supervision to perfect enterprise quality guarantee system and to advance the development of new craft liquor and the improvement of liquor quality.

提高新工艺白酒质量的措施为：做好生产新工艺白酒基本原料如酒精、加浆水、食品添加剂、酒头、酒尾等的选用及处理；对新工艺白酒酒体进行科学设计，包括浓香型白酒中微量成分与己酸乙酯的关系、新工艺白酒的配方等；运用传统白酒生产工艺，结合应用现代先进的生物技术，尽快制订新工艺白酒质量标准，加大监管力度，完善企业质量保证体系，促进新工艺白酒的发展和质量提高。关键词：新工艺白酒；酒精；质量措施中图分类号： TS262.3；TS261.4 文献标识码： B 文章编号： 1001－9286（2007）02－0058－04

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。

And the characteristics of body their trace components are as follows: Luzhou－flavour liquor has ethyl caproate the main flavour component with its content 160～250mg/100ml (above 40％ of total ester); Fen－flavour liquor has ethyl acetate the main body flavour component, above 50％ of total ester, and the content of ethyl lactate and ethyl acetate above 90％ of total ester; Tte main body flavour component of Maotai－flavour liquor is still uncertain, and it has higher furfural content (260mg/100ml); Sanhua－flavour liquor,β－phenethyl alcohol is a special characteristic for it and the content of ethyl lactate is 73％ of total ester; In other flavour liquors,the specific flavouring components vary because of different types.

其微量成分特征为：浓香型白酒以己酸乙酯为主，含量在160～250mg/100ml，占总酯40％以上；清香型白酒以乙酸乙酯为主体香，占总酯的50％以上，乙酸乙酯与乳酸乙酯的含量占总酯90％以上；酱香型白酒的主体香暂无定论，其糠醛含量较高，达260mg/100ml；米香型白酒以β－苯乙醇为特征成分，乳酸乙酯含量占总酯高达73％。其他香型白酒因门类不同，以数种成分为其特征。

The results indicated that the use of such membrane could achieve satisfactory separation effects (condensate of high alcoholicity and rich flavoring substances was obtained, membrane-flowing rate: ethanol＞esters except ethyl lactate＞aldehyde＞other alcohol＞water), the membrane had good selectivity to ethanol and ethyl caproate had good membrane-flowing rate and membrane-passing percentage, however, ethyl lactate, aldehyde and methanol had poor mambrane-passing percentage with heavy loss during membrane-passing.

结果表明，渗透汽化膜有良好的分离性能，可得到高酒精度、香味物质富集的冷凝液；过膜速率：乙醇＞酯类＞醛类＞其他醇类＞水；膜对乙醇选择性好，己酸乙酯的过膜率及过膜速率高；乳酸乙酯、醛类及甲醇过膜率较小、损失量较大；渗透汽化膜用于白酒的香气成分分离有良好的工业应用前景。

Second, among the seven yeast strains investigated, Rhodotorula gracilis AS 2.499 exhibited the highest activity and stereo-selectivity to tert-butyl-6-chloro-5-hydroxy-3-oxohexanoate.

其次，从实验室保藏的七株酵母菌株中筛选出对-6-氯-5-羟基-3-羰基己酸叔丁酯具有较高还原能力的菌株——Rhodotorula gracilis AS 2.499。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。