缬氨酸

The composition of amino in feed matter and feed draff after degradation for sixteen in rumen compared, from which we found the content of vary of amino acids in peanut meal and Soybean meal had increasing trends after sixteen hours cultured in rumen. The increasing trends of leucine, isoleucine, threonine, phenylalanine were greater. The increase trends of lysine, methionine, arginine and histidine were smaller. The content of varies of amino acid in cotton seed meal matter had decreasing trend s after sixteen hours cultured in rumen, but decreasing value was small. The compositions of amino acid in lees and rape seed meal matter were steady after sixteen hours cultured in rumen.

通过把饲料原料中氨基酸的组成和瘤胃降解16h后饲料残渣的氨基酸组成比较发现各种蛋白质饲料瘤胃降解前后氨基酸组成均发生了一定的变化，总的来说，氨基酸浓度在降解后有上升趋势(p＜0.05)的有亮氨酸、异亮氨酸、苯丙氨酸、缬氨酸、苏氨酸、丙氨酸和脯氨酸，氨基酸浓度在降解后有下降趋势(p＜0.05)的有赖氨酸、精氨酸、谷氨酸和胱氨酸，氨基酸浓度在降解后差异不显著的有组氨酸、天门冬氨酸、甘氨酸，降解后无明显规律的有蛋氨酸、丝氨酸和酪氨酸。

Development period of the parasitoid pupa from the 5th instar larva fed on MSB was significantly longer. Length of cocoon of MSB treatment was significantly shorter than the control. However, no obvious differences were detected in the development periods of egg to larva, cocoon mass size, wasp emergence rate, sex ratio, longevity and forewing length of wasp between KMD1 and the control. 3. Amino acid content in the haemolymph of SSB after fed with transgenic rice Although there were no changes on the components of amino acids in the haemolymph of SSB after fed with two transgenic rice lines, there were some changes on relative contents of amino acids.

取食KMD1 36h后0天，20种氨基酸中除天门冬酰胺、丝氨酸、苏氨酸和甲硫氨酸外，其它16种氨基酸的含量都高于对照，其中组氨酸、甘氨酸、苯丙氨酸、异亮氨酸、赖氨酸差异达显著水平，谷氨酰胺、脯氨酸差异达极显著水平，与氨基酸总量表现一致的变化趋势；取食KMD1后1天，除天门冬酰胺、谷氨酰胺和赖氨酸高于对照外，其它17种氨基酸均较对照低，但仅丝氨酸、苏氨酸和色氨酸与对照差异显著；取食KMD1后3天，绝大多数氨基酸含量的变化与取食KMD1后0天的趋势一致，除丙氨酸和色氨酸比对照稍低，其它18种氨基酸均高于对照，其中精氨酸、缬氨酸差异显著，丝氨酸差异达极显著。

Therelationship of the amount of catalyst and the ee% of product was seen to be negative nonlin-ear. Catalyst 3 was used in the enantioselective addition of diethylzinc to aromatic aldehydesand gave good results. The configuration of products was determined by the configuration ofthe catalysts' chiral carbon linked with hydroxy group. Using β- amino alcohols bearing only one chiral center as catalysts for the enantiose-lective addition were studied. D-N, N-dialkyl-2-amino butanol gave poor catalytic effect be-cause of their structure. The configuration of the product is the same as the catalyst. Anotherkind of β- amino alcohols - phenylglycine derivatives and valine derivatives have chiralcenter on the carbon linked with amino group. Catalyzed by-phenylglycine derivatives 6,7, 9, 10, the reactions gave satisfied results. The optical yields exceeded 80%.

在探讨了含有两个手性中心的β-氨基醇之后，选择了只有一个手性中心的β-氨基醇，一是手性中心为连羟基的手性碳原子：D-N，N-二烷基-2-氨基丁醇；二是手性中心为连氨基的手性碳原子：D-苯基甘氨酸衍生物和L-缬氨酸衍生物。D-2-氨基丁醇的催化效果不太好，这与其结构的空间位阻较小有关系，反应产物与连羟基手性碳构型一致；由苯基甘氨酸和缬氨酸出发合成五种β-氨基醇6-10，研究了不同ee％的-6作用下的二乙基锌-苯甲醛加成反应，发现该催化剂具有不对称放大效应；-7，9，lO的催化效果也比较令人满意，光学产率80％以上，所得产物构型与催化剂构型一致。

The purpose of this paper is to synthesize some phosphonium salts with PPh3 and some chiral quaternary ammonium salts with L-Valine. And we also use L-Valine and L-Phe-OMe to synthesize a new type catalyst —2,5-diketopiperazine , the simplest compound of cyclo-peptide.

本文利用廉价易得的三苯基磷和手性L-缬氨酸作为起始原料，合成了几种普通季鏻盐和手性季铵盐，并且利用L-缬氨酸与L-苯丙氨酸甲酯反应，合成了一种新型的相转移催化剂——2，5-二酮哌嗪环类的化合物。

Results\ The levels of some essential amino acids like valine,leucine and histidine were significantly lower than those of normal controls.

结果 血透患者在透析前的必需氨基酸除苯丙氨酸外均较正常对照组降低，其中以缬氨酸、亮氨酸和组氨酸下降为显著；非必需氨基酸中精氨酸、甘氨酸和鸟氨酸明显升高；酪氨酸/苯丙氨酸和丝氨酸/甘氨酸的比值较对照组明显降低。

Xinjiang medicine's content of amino acid of fruit juice of mulberry fruit is concrete: 2,6-diaminocaproic acid 0.089, serine 0.044, histidine 0.025, glycine 0.049, ammonia 0.088, valine 0.057, 2-amino-5-guanidinovaleric acid 0.051, isoleucine 0.042, Radix Asparagi 0.068, 0.020, threonine 0.076, 0.022, 0.128, 0.069, third 0.048, benzene third 0.042 leucine glutaminic acid methionine hydroxyphenylaminopropionic acid.

新疆药桑椹果汁氨基酸含量具体为：赖氨酸0.089、丝氨酸0.044、组氨酸0.025、甘氨酸0.049、氨0.088、缬氨酸0.057、精氨酸0.051、异亮氨酸0.042、天门冬氨酸0.068、酪氨酸0.020、苏氨酸0.076、蛋氨酸0.022 、谷氨酸0.128、亮氨酸0.069、丙氨酸0.048、苯丙氨酸0.042。

The patients with methylmalonic acidemia and homocystinuria should be mainly treated with vitamin B12, betaine and L-carnitine, while the patients with isolated methymalonic acidemia should be treated with protein restriction, the special milk formula without isoleucine, valine, methionine, and threonine, and be given L-carnitine.

对伴有同型半胱氨酸血症患儿，治疗以维生素B12、甜菜碱和左旋肉碱为主；对不伴有同型半胱氨酸血症患儿以限制天然蛋白质摄入，给予去除异亮氨酸、缬氨酸、甲硫氨酸和苏氨酸的特殊奶粉及左旋肉碱治疗为主。

They were two new compounds, [cyclo(Pro-Val-Phe-Phe-Pro-Val-Phe-Ser-Leu),7],[2-N-(1-methoxycarbonylethyl)guanosine, 10], and eight known compounds,(p-hydroxybenzoic acid, 1),(methyl succinate, 2),(russulaceramide, 3),(phenylalanine, 4),(guanine, 5),(β-carboline, 6),(uridine, 8), and (adenosine, 9). All the compounds were isolated from Amanita exitialis for the first time.

分别为：对羟基苯甲酸(p-hydroxybenzoic acid，1)、丁二酸二甲酯(methyl succinate，2)、神经酰胺(russulaceramide，3)、苯丙氨酸（phenylalanine，4）、鸟嘌呤核苷(guanine，5)、β-咔啉(β-carboline，6)、环（脯氨酸-缬氨酸-苯丙氨酸-苯丙氨酸-脯氨酸-缬氨酸-苯丙氨酸-丝氨酸-亮氨酸） [cyclo(Pro-Val-Phe-Phe-Pro-Val-Phe-Ser-Leu)，7]、尿嘧啶核苷(uridine，8)、腺嘌呤核苷(adenosine，9)、2-N-(1-甲氧羰基乙基)鸟苷[2-N-(1-Methoxycarbonylethyl)guanosine， 10]。10个化合物均为首次从致命鹅膏中分离得到，其中化合物7和10为新化合物。

Linear free energy relationships exist between the stability of the ternary mixed ligand complex compounds and the base strengths of the a-amino acids and with the stability of the parent binary complex compounds as well.

此处应用的α-氨基酸为L-脯氨酸， D，L-α-氨基异丁酸， L-异亮氨酸， L-缬氨酸，甘氨酸、L-丝氨酸、L-苏氨酸，结果发现，三元混配合物的稳定性与α-氨基酸的碱性强度间以及与原来的二元络合物间存在有线性自由能关系。

There was 4 amino acids in fat body which were different from midgut.

中肠和脂肪体氨基酸序列有4个氨基酸位点不同，中肠丝氨酸Ser-脂肪体为天冬氨酸N、中肠丙氨酸A-脂肪体缬氨酸V、尤其是脂肪体部位中的血红素保守区由甲硫氨酸M变为缬氨酸V，有可能改变了对底物的催化活性，这在比较的其它几种CYP6B家族的基因中没有发现。

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。