1)diacetyl[,dai?'si:til]双乙酰
1.Discussion on the influencing factors of beer diacetyl's determination;啤酒双乙酰测定影响因素的研究
2.In Beer Diacetyl Ingredient Formation and Control;啤酒中双乙酰成分的形成与控制
3.Research Advance in Anti-aging and Low-diacetyl of Beer Yeast;关于抗老化低双乙酰啤酒酵母的研究进展
英文短句/例句
1.Selection of Diacetyl-less Brewer Yeast and Scaling-up Fermentation低双乙酰啤酒酵母菌种选育及其中试
2.Construction of Self-cloning Industrial Brewing Yeast with High-SOD and Low-diacetyl Production;高SOD，低双乙酰啤酒酵母工程菌的构建
3.Studies on Diacetyl Produced by Lactic Acid Bacteria in Traditional Fermented Diary Product;传统发酵乳制品中乳酸菌产双乙酰特性的研究
4.Apply Technology of Genetic Engineering Breeding to Control the Volume of Diacetyl Output in Brewing Beer;应用遗传育种技术控制啤酒双乙酰生成量
5.Requirements of Effective Measurement of Diacetyl Content in Beer & Relative Control Measures有效检测控制啤酒双乙酰含量的要求及措施
6.Synthesis and Characterization of Novel Schiff Base Containing Diacetylferrocene and Diamine双乙酰基二茂铁双缩二胺席夫碱的合成及结构表征
7.Quantum Chemistry of Bis(β-Diketonato) Bridged and 2,2′-Bipyridine Chelating Ligand Complex双乙酰丙酮和2,2′-联吡啶的双核钯(Ⅱ)配合物的量子化学研究
8.acetyl chemicals乙酰(xian-1)
9.The Application of EBS in Powder Coatings乙撑双硬脂酰胺在粉末涂料中的应用
10.Synthesis and Analysis of 4-Ethyl-1-Chloroformyl-2,3-Dioxopiperazine;4-乙基-2，3-双氧哌嗪酰氯的合成及分析
11.Studies on Compound Acetaminophen Two-layer Sustained Release Tablets;复方对乙酰氨基酚双层缓释片的研究
12.Synthesis of dichloroacetyl diben20-30-Crown-10 derivatives;双氯乙酰基二苯并-30-冠-10的合成
13.Study on the Preparation Technology and Properties of Acetylated Distarch Adipate and Acetylated Distarch Glycerol;乙酰化己二酸双淀粉和乙酰化二淀粉甘油酯制备工艺及性质研究
14.ethyl acetoacetic ester乙基乙酰乙酸酯[乙酯]
15.acetoacetic ester乙酰醋酸酯[乙酯]
16.acetoacetyl-CoA thiolase乙酰乙酰ＣｏＡ硫解酶
17.etyl-CoA transacetylase乙酰辅酶A转乙酰酶
18.Synthesis of Bis(1-Acetyl-4-Aroylthiosemicarbazides) and Their Derivatives双(1-乙酰基-4-取代苯甲酰基氨基硫脲)及其衍生物的合成
相关短句/例句
biacetyl[bai'?sitil]双乙酰
1.Sensitized Room-Temperature Phosphorescence of Biacetyl by Naphthalene in Micellar Systems;胶束介质中萘敏化双乙酰的室温磷光
2.The article briefly introduces the production of biacetyl and the relations of fermentation technology and biacetyl.简述了啤酒中双乙酰的形成机制及发酵工艺与双乙酰的关系,提出了在啤酒实际生产中双乙酰含量的控制方法。
3.High peak value of biacetyl occurred incidentally in beer brewing.啤酒生产中偶然会出现双乙酰峰值高的现象,可通过添加α-乙酰乳酸脱羧酶加以解决,可在发酵液中添加,也可在清酒中添加。
3)diacetyl monooxime双乙酰-肟
1.Ethyl nitrite and 2-butanone are condensed to give diacetyl monooxime,which canbe hydrolysed to form diacetyl.本文用亚硝酸乙酯与２－丁酮缩合制备双乙酰－肟。
4)diacetyl[,dai?'si:til]双乙酰酮
5)diacetylation双乙酰化
1.The results showed that diacetylation impurity amount was high and therefore reaction time was too long for the first route,the most reason is that diacetylation impurity is difficult to be removed.路线一在反应过程中有双乙酰化杂质产生,难以除去,造成有关物质偏高,且整个反应时间较长;路线二在以PEG-400为相转移催化剂条件下,反应时间大大缩短,且无上述的双乙酰化杂质。
6)diacetyl content双乙酰含量
1.pressure less than 300 MPa could advance decomposition of α-acet lactate and reduction of diacetyl and effectively reduce diacetyl content,and pressure more than 300 MPa would prolong the reduction of diacetyl and increase diacetyl content;3.②压力小于300 MPa时,促进清酒中α-乙酰乳酸的非酶分解及双乙酰的还原反应,具有降低双乙酰含量的作用;而压力大于300 MPa,会相对延缓双乙酰的还原,导致双乙酰含量的反弹。
延伸阅读
双乙酰国标编号 32081 CAS号分子式 C4H6O2;CH3COCOCH3分子量 86.09微绿黄色液体，有强烈的气味;闪 点 6℃;沸点 88℃;溶解性:溶于水、乙醇、乙醚;密度：相对密度(水=1)0.99;相对密度(空气=1)3.00;稳定性:稳定;危险标记 7(易燃液体);主要用途:用作食品香料载体 2.对环境的影响:一、健康危害侵入途径：吸入、食入、经皮吸收。健康危害：具有刺激性。接触后可引起恶心、头痛和呕吐。二、毒理学资料及环境行为急性毒性：LD501580mg/kg(大鼠经口)危险特性：其蒸气与空气形成爆炸性混合物，遇明火、高热能引起燃烧爆炸。与氧化剂能发生强烈反应。其蒸气比空气重，能在较低处扩散到相当远的地方，遇火源引着回燃。若遇高热，容器内压增大，有开裂和爆炸的危险。燃烧(分解)产物：一氧化碳、二氧化碳。3.现场应急监测方法: 4.实验室监测方法:气相色谱法5.环境标准: 6.应急处理处置方法:一、泄漏应急处理疏散泄漏污染区人员至安全区，禁止无关人员进入污染区，切断火源。建议应急处理人员戴自给式呼吸器，穿一般消防防护服。在确保安全情况下堵漏。喷水雾会减少蒸发，但不能降低泄漏物在受限制空间内的易燃性。用活性碳或其它惰性材料吸收，收集至废物处理场所处置。也可以用大量水冲洗，经稀释的洗水放入废水系统。如大量泄漏，利用围堤收容，然后收集、转移、回收或无害处理后废弃。二、防护措施呼吸系统防护：高浓度环境中，佩戴防毒口罩。眼睛防护：必要时戴化学安全防护眼镜。身体防护：穿相应的工作服。手防护：戴防护手套。其它：工作现场严禁吸烟。注意个人清洁卫生。避免长期反复接触。三、急救措施皮肤接触：脱去污染的衣着，用流动清水彻底冲洗。眼睛接触：立即提起眼睑，用大量流动清水彻底冲洗。吸入：迅速脱离现场至空气新鲜处。保持呼吸道通畅。必要时进行人工呼吸。就医。食入：误服者给饮大量温水，催吐。就医。灭火方法：泡沫、干粉、二氧化碳、砂土。用水灭火无效。
