ketose

简明释义

英[ˈkiːtəʊz]美[ˈkitos]

n. [生化] 酮糖

英英释义

单词用法

同义词

反义词

例句

1.The conditional, product and mechanism of Bormine Water oxidating Aldose and Ketose are discussed in this paper.

通过大量实验，研究了溴水氧化醛糖和酮糖的条件、产物和机理。

2.Sedoheptulose is a ketose composed of seven carbon atoms.

景天庚酮糖是由七个碳原子构成的酮糖。

3.Thus, the simplest ketose, HOCH2-C:O-CH2OH, is a triulose; the most common ketose, D-fructose (levulose), is a hexlose.

这样，最简单的酮糖HOCH 2 -C：O-CH 2 OH即为triulose（丙酮糖）；最常见得酮糖D-果糖（左旋糖）即为hexulose（己酮糖）。

4.Ketohexose a ketose SUGAR with six carbon atoms, e. g. fructose.

己酮糖：一种六碳的酮糖。例如果糖。

5.Thus, the simplest ketose, HOCH2-C:O-CH2OH, is a triulose; the most common ketose, D-fructose (levulose), is a hexlose.

这样，最简单的酮糖HOCH 2 -C：O-CH 2 OH即为triulose（丙酮糖）；最常见得酮糖D-果糖（左旋糖）即为hexulose（己酮糖）。

6.The ketose (酮糖) structure allows for different isomeric forms that can affect taste and texture in food products.

由于ketose（酮糖）的结构，可以形成不同的异构体，这会影响食品的味道和质地。

7.Fructose is a common example of a ketose (酮糖) found in many fruits.

果糖是许多水果中常见的ketose（酮糖）的一个例子。

8.Some sugar substitutes are made from ketose (酮糖) derivatives, which can provide sweetness without calories.

一些糖替代品是由ketose（酮糖）衍生物制成的，可以提供无热量的甜味。

9.In biochemistry, a sugar molecule can be classified as an aldose or a ketose (酮糖) based on the position of its carbonyl group.

在生物化学中，糖分子可以根据其羰基的位置被分类为醛糖或ketose（酮糖）。

10.When studying carbohydrate metabolism, it's important to understand the role of ketose (酮糖) in energy production.

在研究碳水化合物代谢时，了解ketose（酮糖）在能量产生中的作用是很重要的。

作文

In the realm of biochemistry, understanding different types of sugars is crucial for comprehending metabolic processes. One such type of sugar is a ketose, which is a monosaccharide containing a ketone group. Ketoses are significant because they play essential roles in various biological functions and energy production. The simplest example of a ketose is fructose, which is found in many fruits and honey. Unlike aldoses, which have an aldehyde group, ketoses have their carbonyl group located at the second carbon atom. This structural difference leads to various properties and reactions that are vital in biological systems.Ketoses can be classified based on the number of carbon atoms they possess. For instance, dihydroxyacetone is a three-carbon ketose, while fructose has six carbons. The classification of ketoses is important in understanding their function in metabolism. In the human body, ketoses are metabolized differently from aldoses, primarily due to their unique structure. When consumed, ketoses can be converted into glucose through gluconeogenesis, providing a source of energy when carbohydrates are scarce.Moreover, ketoses are also involved in the Maillard reaction, a chemical reaction between amino acids and reducing sugars that gives browned food its distinctive flavor and color. This reaction is particularly important in cooking and food processing, where the presence of ketoses can enhance the taste and appearance of various dishes.In addition to their metabolic significance, ketoses have implications in health and nutrition. For example, the consumption of high-fructose corn syrup, which is a sweetener derived from corn that contains significant amounts of fructose (a ketose), has been linked to obesity and other metabolic disorders. Understanding the role of ketoses in our diet can help individuals make informed dietary choices and manage their health more effectively.Furthermore, research into ketoses continues to evolve, revealing new insights into their potential benefits and risks. For instance, some studies suggest that ketoses may have antioxidant properties, which could contribute to reducing oxidative stress in the body. This aspect of ketoses is particularly intriguing, as oxidative stress is associated with various chronic diseases, including heart disease and diabetes.In conclusion, the study of ketoses is integral to understanding both biochemistry and nutrition. Their unique structures and functions highlight the complexity of sugar metabolism and its impact on human health. As we continue to explore the roles of different sugars, including ketoses, we gain valuable knowledge that can inform dietary practices and improve overall well-being. Therefore, recognizing the significance of ketoses is essential not just for scientists but for anyone interested in maintaining a healthy lifestyle.

在生物化学领域，理解不同类型的糖对于理解代谢过程至关重要。其中一种糖是酮糖，它是一种含有酮基的单糖。酮糖的重要性在于它们在各种生物功能和能量生产中发挥着重要作用。最简单的酮糖例子是果糖，它存在于许多水果和蜂蜜中。与含有醛基的醛糖不同，酮糖的羰基位于第二个碳原子上。这种结构差异导致了不同的特性和反应，这对生物系统至关重要。根据碳原子的数量，酮糖可以被分类。例如，二羟基丙酮是一种三碳酮糖，而果糖则有六个碳原子。对酮糖的分类对理解它们在代谢中的功能非常重要。在人体内，酮糖的代谢方式与醛糖不同，主要是由于它们独特的结构。当摄入时，酮糖可以通过糖异生转化为葡萄糖，在缺乏碳水化合物时提供能量来源。此外，酮糖还参与美拉德反应，这是一种氨基酸与还原糖之间的化学反应，使得烹饪食品具有独特的风味和颜色。这一反应在烹饪和食品加工中尤为重要，酮糖的存在可以增强各种菜肴的味道和外观。除了代谢的重要性外，酮糖在健康和营养方面也有影响。例如，消费高果糖玉米糖浆，这是一种从玉米中提取的甜味剂，含有大量的果糖（酮糖），已被关联到肥胖和其他代谢疾病。理解酮糖在饮食中的作用可以帮助个人做出明智的饮食选择，更有效地管理他们的健康。此外，对酮糖的研究仍在不断发展，揭示了它们潜在的益处和风险。例如，一些研究表明，酮糖可能具有抗氧化特性，这可能有助于减少体内的氧化压力。酮糖的这一方面尤其引人注目，因为氧化压力与多种慢性疾病相关，包括心脏病和糖尿病。总之，研究酮糖对于理解生物化学和营养至关重要。它们独特的结构和功能突显了糖代谢的复杂性及其对人类健康的影响。随着我们继续探索不同糖类（包括酮糖）的作用，我们获得了宝贵的知识，可以为饮食实践提供信息并改善整体健康。因此，认识到酮糖的重要性不仅对科学家而言至关重要，也对任何希望保持健康生活方式的人而言同样重要。