瓜氨酸

An amino acid, C6H13N3O3, originally isolated from watermelon, that is produced as an intermediate in the conversion of ornithine to ''.

瓜氨酸一种氨基酸，c6h13n3o3，最初从西瓜中分离出来，在肝部的尿素形成过程中，其作为中介物将鸟氨酸转为精氨酸

ObjectiveTo develop an TLC method for the determination of trichosanthin Citrullin content from different habitats.

目的采用薄层色谱扫描法测定不同产地天花粉中瓜氨酸的含量，建立瓜氨酸的含量测定方法。

The average recovery was 99.12%, rsd=1.12%.conclusionthe proposed method is simple,rapid and accurate.it can be used to determine the contents of citrullin in radix trichosanthis..

结果瓜氨酸在0.200 8～2.008 μg时，与峰面积呈良好的线性关系（r=0.999）；平均回收率为99.12%，rsd =1.12%。结论该方法操作简便，快速，准确，可用于瓜氨酸的含量测定。

Recent years many foreign researches show citrulline has a lot of important physiological functions such as radical-scavenging hydroxyl,indicator of the foreign exclusive effect,vasodilatation,stabilizing blood pressure, diagnosing rheumatoidal arthritis,antioxidation and so on.

近年来国外的众多研究表明，瓜氨酸具有很多重要的生理功能，如清除自由基、异体排斥效应指示剂、血管舒张作用、稳定血压以及诊断类风湿关节炎、抗氧化等，瓜氨酸正越来越多地被运用到食品、化妆品和药物上。

The thesis investigated the analysis approach of citrulline and the producing process of citrulline by extract process and fermentation....

本文建立了瓜氨酸的分析方法，研究天然提取法及发酵法制备瓜氨酸的工艺，试图找到一条原料易得，成本低廉，生产方便，产品质量高的路线，为今后工业化生产瓜氨酸奠定基础。

It can convert arginine, a semi-necessary amino acid, into citrulline and ammonia. And the absence of arginine can restrain the growth of cell.

精氨酸脱亚氨基酶可把非必需氨基酸——精氨酸转变为瓜氨酸，而精氨酸的缺失将使细胞生长受到抑制。

Watermelon has more citrulline in the edible part than previously believed, he says.

卡城德州农工大学水果蔬菜发展中心负责人哲学博士对Bhimu Patil对 WebMD的记者说：&我们早就了解西瓜含有瓜氨酸，但直到最近，科学家们还认为大部分的瓜氨酸是在瓜皮里，其实西瓜的瓜瓤含有更多的瓜氨酸。&

In this paper, it is reported that five amino acids'compounds which are S-carboxymethyl-L-Cysteine, Erdosteine, L–Citrulline, L-Homocitrulline and Ornithine respectively.

本文以化学方法合成了五种氨基酸化合物，分别为：羧甲基半胱氨酸、厄多司坦、L-瓜氨酸、L-高瓜氨酸和鸟氨酸。

It is mainly formed by the reaction between urea (produced by the breakdown of arginine by the yeast) and citrulline (produced by the degradation of arginine by malolactic bacteria and ethanol).

葡萄酒中氨基甲酸乙酯主要由酵母降解精氨酸产生的尿素和苹果酸-乳酸菌降解精氨酸产生的瓜氨酸与乙醇自发反应产生。

In metabolizing argine, there had no obvious difference among three strains and the control 3 1 DH. Thus, three selected strains had better characters of degrading argininc that they couldn"t over-degrade arginine to produce large numbers" precursors of carcinogenic ethyl carbamate as citrulline, etc.

分析表明，精氨酸分解代谢方面，三个菌株与对照31DH没有明显差异，由此说明，三个优选菌株精氨酸代谢特性良好，不会过多降解精氨酸、代谢产生瓜氨酸等前体物质，从而不会导致致癌物质——氨基甲酸乙酯的大量合成。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。