denature

简明释义

英[diːˈneɪtʃə]美[diˈnetʃər]

vt. 使……失去人性；改变……的性质

vi. 变性

第 三 人 称 单 数 d e n a t u r e s

现 在 分 词 d e n a t u r i n g

过 去 式 d e n a t u r e d

过 去 分 词 d e n a t u r e d

英英释义

单词用法

同义词

反义词

例句

1.METHODS the serum samples were processed with acetonitrile to denature the protein.

方法血清样品用乙腈沉淀蛋白。

2.Adequate facilities to render or denature the inedible meat product as applicable must be provided.

必须提供将非食用肉类炼油或使其变性成为可适用产品的适当设施。

3.When these stabilizing interactions are disrupted, the molecules unfold or denature AND typically lose biological activity.

当这些稳定作用因素被破坏时，分子就会展开或变性，并且通常失去了它的生物活性。

4.The object of the invention is to denature hemoglobin in a sample solution rapidly and reliably, and to achieve the rapid and precise measurement of hemoglobin and a hemoglobin derivative.

在迅速且可靠地使试样液中的血红蛋白变性的同时，实现迅速且准确的血红蛋白及血红蛋白衍生物的测定。

5.A hot blood meal should denature mosquito digestive enzymes, but other mosquito molecules protect those compounds.

一餐热血本应使蚊子的消化酶变性，但蚊子的其他分子却保护着这些化合物。

6.In certain methods, the lysate is heated for a time and at a temperature sufficient to denature proteins present in the lysate and cause their aggregation and precipitation.

在某些方法中，将所述溶胞产物在一定温度下加热一定时间，所述温度和时间足以使所述溶胞产物中存在的蛋白质变性并使其聚集和沉淀。

7.It is easier to denature plutonium than it is to denature the evil spirit of man.

改变钚元素的性质，比改变人类邪恶的心灵容易。

8.Of course, one basis for heat processing is to denature and inactivate enzymes so that the food is not subjected to continuing enzymes activity.

当然，食品热处理的理论根据之一就是使食品中的酶变性和钝化，从而使食品不再继续受到酶的作用。

9.The heat from cooking can denature the proteins in the meat, making it tender.

烹饪时的热量可以使蛋白质变性，使肉变得嫩滑。

10.When exposed to strong acids, enzymes may denature, losing their catalytic properties.

当暴露于强酸时，酶可能会变性，失去其催化特性。

11.The process of pasteurization involves heating milk to denature harmful bacteria.

巴氏消毒过程涉及加热牛奶以使有害细菌变性。

12.In the lab, scientists often denature DNA to study its components.

在实验室中，科学家们经常使DNA变性以研究其成分。

13.Certain detergents can denature proteins in stains, making them easier to wash out.

某些洗涤剂可以使污渍中的蛋白质变性，使其更容易清洗。

作文

In the field of science, particularly in biology and chemistry, the term denature refers to a process that alters the natural structure of a molecule, typically a protein or nucleic acid. When a protein denatures, it loses its three-dimensional structure, which is crucial for its function. This can occur due to various factors, including changes in temperature, pH levels, or exposure to certain chemicals. Understanding the concept of denature is essential for scientists working in areas such as biochemistry, molecular biology, and food science. For instance, when cooking an egg, the heat causes the proteins in the egg white to denature. Initially, the egg white is clear and viscous, but as it cooks, the proteins unfold and aggregate, resulting in a solid, opaque structure. This transformation is not just a culinary phenomenon; it illustrates how denatured proteins can change their physical properties and functionality. In this case, the denatured proteins form a network that traps water, giving the cooked egg its characteristic texture. Similarly, in the context of DNA, denature refers to the separation of the two strands of the double helix. This process is crucial during DNA replication and polymerase chain reactions (PCR), where the DNA strands need to be separated to allow for copying or amplification. The denatured state of DNA is temporary, and the strands can re-anneal once the conditions are right, demonstrating the dynamic nature of biological molecules. In the food industry, denatured proteins play a significant role in the texture and flavor of various products. For example, the denature process is critical in the production of cheese. When milk is heated and combined with an acid or rennet, the casein proteins denature, causing them to coagulate and form curds. This is the foundation of cheese-making, where the denatured proteins create a new structure that traps fats and flavors, resulting in the diverse range of cheeses available today. However, denature is not always a beneficial process. In some cases, such as in the production of certain pharmaceuticals, denatured proteins may lose their efficacy, leading to ineffective treatments. Therefore, controlling the conditions that lead to denature is crucial in many scientific and industrial applications. In conclusion, the concept of denature is fundamental to understanding how proteins and other biological molecules behave under different conditions. Whether in the kitchen, laboratory, or industry, denatured molecules demonstrate the delicate balance of structure and function that is vital for life. By studying the mechanisms and effects of denature, scientists can manipulate these processes for various applications, from creating delicious food to developing new medical therapies. The implications of denature extend far beyond simple definitions; they touch upon the very essence of molecular biology and the intricate dance of life itself.

在科学领域，特别是在生物学和化学中，术语denature指的是一种改变分子天然结构的过程，通常是蛋白质或核酸。当蛋白质denature时，它会失去其三维结构，而这个结构对其功能至关重要。这种情况可能由于多种因素引起，包括温度、pH值的变化或暴露于某些化学物质。理解denature的概念对于从事生物化学、分子生物学和食品科学等领域的科学家来说至关重要。 例如，当烹饪鸡蛋时，热量使蛋清中的蛋白质denature。最初，蛋清是清澈而粘稠的，但随着烹饪，蛋白质展开并聚集，形成固体的不透明结构。这一转变不仅仅是烹饪现象；它展示了denature蛋白质如何改变其物理特性和功能。在这种情况下，denature的蛋白质形成一个网络，捕获水分，使熟鸡蛋具有特征的质地。 类似地，在DNA的上下文中，denature指的是双螺旋的两条链分离。这一过程在DNA复制和聚合酶链反应（PCR）中至关重要，在这些过程中，DNA链需要分开以便进行复制或扩增。DNA的denature状态是暂时的，一旦条件适合，链可以重新结合，展示了生物分子的动态特性。 在食品工业中，denature的蛋白质在各种产品的质地和风味中扮演着重要角色。例如，denature过程在奶酪生产中至关重要。当牛奶加热并与酸或凝乳酶结合时，酪蛋白蛋白质denature，导致它们凝结形成凝乳。这是奶酪制作的基础，在这一过程中，denature的蛋白质创造出一种新的结构，捕获脂肪和风味，形成今天多样化的奶酪。 然而，denature并不总是一个有益的过程。在某些情况下，例如在某些药物的生产中，denature的蛋白质可能失去其效能，导致治疗无效。因此，在许多科学和工业应用中，控制导致denature的条件至关重要。 总之，denature的概念是理解蛋白质和其他生物分子在不同条件下如何表现的基础。无论是在厨房、实验室还是工业中，denature的分子展示了结构与功能之间的微妙平衡，这对生命至关重要。通过研究denature的机制和影响，科学家可以操控这些过程以用于各种应用，从创造美味食物到开发新的医疗疗法。denature的影响远远超出了简单定义；它们触及了分子生物学的本质以及生命本身的复杂舞蹈。