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缬氨酸是一种氨基酸。Valine is one of the essential amino acids.

总之这个词是指三个必需的氨基酸-亮氨酸，异亮氨酸，缬氨酸。In short the term refers to three essential amino acids – leucine, isoleucine and valine.

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缬氨酸是动物体内蛋白质合成的必需氨基酸，可形成许多重要蛋白质。Valine is needed for protein biosynthesis in animals and forms part of all important proteins.

海水与淡水养殖锯缘青蟹肌肉的第一限制性氨基酸均为缬氨酸。The first limiting amino acids in the muscles of marine cultured and freshwater cultured Scylla serrata were both valine.

本文对由115个水分子包围一个中性缬氨酸分子所组成的分子集团做了蒙特卡罗模拟。The Monte Carlo simulation is performed for a cluster consisting of a neutral valine molecule surrounded by 115 water molecules.

但脊柱裂羊水中的苏氨酸、丝氨酸与异亮氨酸、亮氨酸、缬氨酸的比值明显地高于正常值。Moreover the ratio of threonine and serine to isoleucine leucine and valine in the amniotic fluid of spina bifid a fetus is higher than normal.

而以每100克蛋白质中氨基酸含量计算，除精氨酸、酪氨酸和谷氨酸外，HVS中其它氨基酸含量均低于DSBM。However, most amino acids, except arginine, valine and glutamic acid, were lower in HVS than DSBM if it is calculated per 100 g crude protein basis.

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方法将血红蛋白经酸水解后，释放出氨甲酸缬氨酸，并进一步转化成缬氨酸乙内酰脲后进行定量分析。Methods It was based on the quantification of valine hydantoin formed from the released carbamyl valine reside after acid hydrolysis of haemoglobin.

磷酸盐。它是谷氨酸发酵过程中必需的，但浓度不能过高，否则会转向缬氨酸发酵。Phosphate. It is essential glutamic acid fermentation process, but the concentration can not be too high, otherwise they will be to valine fermentation.

成虾的缬氨酸、异亮氨酸含量比小虾、中虾的低，而酪氨酸、苯丙氨酸、天门冬氨酸较高。The adult shrimp had significantly higher tyrosine, phenylalanine and asparagine content but lower valine and isoleucine levels compared to juvenile and middle shrimp.

该方法具有操作简单、选择性好、清洁环保的特点，使缬氨酸的收率和质量得到显著提高。The method has the characteristics of simple operation, good selectivity, cleanness and environment protection, so the yield and the quality of the valine are obviously improved.