酯酶

The results showed that:(1) 5'-nucleotide contents in yeast autolysate was slightly increased by adding RNase frommalted barley roots;(2) higher pH did not improve the 5'-nucleotide contents even in the presence of RNase from malted barleyroots, but at the pH 8.0, the addition of Acalase could increase the final yield, soluble protein contents and 5'-nucleotide inthe presence of RNase from malted barley roots.

酵母核酸酶的pH稳定性和温度稳定性均比麦芽根核酸酶的要差。这说明自溶法生产酵母提取物时，即使外加5'-磷酸二酯酶不能有效提高呈味核苷酸的原因并非由于外加的5'-磷酸二酯酶性质不稳定，而是另有其它原因。

In April 2004, 30 Boleophthalmus pectinirostris samples were collected from the lagune in Xiepu Villege, Zhenhai Town, Ningbo City, Zhejiang Province. Polyarylamide gel electrophoresis was used to detect the expression of isozymes in liver tissue. LDH, FDH, GDH, GCDH, G6PDH, MDH, ME, SOD, CAT and EST were analyzed and the biochemical genetic results showed that, among the 10 isozymes in this paper, 9 of which obtained clear enzyme patterns except for CAT.

于2004年4月，在浙江省宁波市镇海区澥浦滩涂采集野生大弹涂鱼30尾，采用聚丙烯酰胺凝胶电泳方法，分析了乳酸脱氢酶、甲酸脱氢酶、谷氨酸脱氢酶、D-葡糖脱氢酶、葡萄糖－6-磷酸脱氢酶(G6PDH)、苹果酸脱氢酶、苹果酸酶、超氧化物歧化酶、过氧化氢酶和酯酶等10种酶在大弹涂鱼肝脏组织中的表达，并对同工酶表型进行了生化遗传分析。

S40Q enhanced the esterase activity 1.2-fold when p-nitrophenyl butyrate was used as the substrate; S40G increased the esterase activity 1.2-fold when p-nitrophenyl valerate was used.

以对硝基苯丁酸酯为底物，S40Q使AIbD酶酯酶活性提高1.2倍；以对硝基苯戊酸酯为底物，S40G使活性提高1.3倍。

For increasing our knowledge on the pathology of entomopathogenic nematodes to ticks, the changes of total protein level, esterase activity and esterase bands in the hemolymph of female Haemaphysalis longicornis Neumann after infection by the nematode Heterorhabditis bacteriophora E-6-7 (Hb E-6-7) were detected.

用嗜菌异小杆线虫Heterorhabditis bacteriophora E-6-7 (Hb E-6-7)感染长角血蜱Haemaphysalis longicornis雌蜱，测定感染后雌蜱血淋巴总蛋白含量、酯酶活性及酯酶同工酶的变化，以探讨昆虫病原线虫对蜱的致病机理。

B Similarity degree of EST traits between different taxa is not correlative to that of morphological characters. Some morphological taxa in traditional classification are not monophyletic group.

分析结果表明(1)酯酶同工酶酶谱特征在不同属级单元之间以及同属的不同种类之间都存在着明显的差异；(2)不同属种之间酯酶同工酶特征的相似程度与外部形态特征之间的相似程度不一致性，以外部形态为主要依据的传统分类的一些属不是真正的单系群。

Esterases and lipases have been widely applied in various industrial process and thermophilic esterases have a great potential application for their thermo-stability.

中文摘要酯酶和脂肪酶已经被广泛的应用于多种工业中，嗜高温酯酶因优良的热稳定性有很大的应用潜力。

Both of the venoms showed activities of multiplehydrolases including hyaluronidase, protease, DNase, acid phosphetase,alkaline phosphetase and choline esterase, of which hyaluronidase, protease and DNase were more active. The activity of protease in VDPGwas higher than that of protease in VES and the activities of the resthydrolases in VDPG were lower than those of hydrolases in VES.

通过对粗毒进行酶活性分析，发现两种粗毒都具有透明质酸酶、蛋白水解酶、DNA酶、酸性磷酸酶、碱性磷酸酶、乙酰胆碱酯酶等酶活性；其中透明质酸酶、蛋白水解酶、DNA酶活性较高；毒囊粗毒中蛋白水解酶活性高于电刺激粗毒，而其它几种酶活性均低于电刺激粗毒。

The studies on metabolic enzymes、synergists and neurobioassays suggest that the monooxygenases、esterase and decreased nerve sensitity are involved in resistance to pyrethroids in the resistant HJ-R strain . The resistance to both organophosphorus and carbamate insecticides is mainly caused by metabolic mechanisms. The significantly synergistic effects of Pbo infer that the resistance to carbamata may be principally attributable to monooxygenases detoxification.

代谢酶系、增效作用以及神经电生理研究表明，HJ-R种群对拟除虫菊酯类杀虫剂的抗性是由多功能氧化酶及酯酶代谢增强、神经敏感性降低几个因子综合作用的结果；对有机磷、氨基甲酸酯类杀虫剂的抗性主要是由代谢机制引起，与靶标部位敏感性降低机制抗性无关，Pbo对HJ-R种群突出的增效作用，表明多功能氧化酶代谢在对灭多威的抗性中可能起主导作用。

The results demonstrated that esterase-mediated metabolism plays an important role in phoxim resistance in the BK77-R strain, and enhanced detoxification mediated by both esterases and oxidases is an important factor conferring broad cross-resistance to different classes of insecticides.

上述结果表明，酯酶解毒代谢在棉铃虫BK77-R品系对辛硫磷的抗性中起重要作用，酯酶和多功能氧化酶解毒作用增强是该抗性品系对不同类型药剂产生交互抗性的重要原因。

School of Public Health,Southeast University,Nanjing 210009,ChinaAbstract : Objective:To measure the effect of beta-cypermethrin to the general esterase and acetylcholine esterase activity of German cockroach.

目的：了解高效氯氰菊酯对德国小蠊乙酰胆碱酯酶和非特异性酯酶活性的影响，为探索抗性机制及抗药性生化检测方法提供理论依据。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。