lactase

简明释义

英[ˈlækteɪs]美[ˈlækteɪs]

n. 乳糖分解酵素；乳糖酶

英英释义

单词用法

同义词

反义词

例句

1.Na, Fe and Ca helped to promote the enzyme activity of lactase.

矿质元素钠、铁和钙能促进乳糖酶的酶活力。

2.Organic whole milk from our pasture-fed cows is skimmed to the desired fat level, and then the enzyme "lactase" is added to the milk and slowly mixed for 24 hours.

有机全脂牛奶从我们的牧草喂养奶牛被撇到想要的脂肪水平，然后在酶的“乳糖酶”，添加到奶粉，并慢慢地混合，为24小时。

3.Indeed, the rise of farming has been linked to evolutionary changes in genes for other enzymes, such as amylase, which breaks down starch, and lactase, which breaks down lactose in milk.

确实，农业的兴起与基因上很多酶的进化变化紧密联系，如那分解淀粉的淀粉酶amylase，和乳糖分解酶，分解牛奶中的乳糖等。

4.If you are lactose intolerant, you might want to try lactase supplements.

如果你属于乳糖不耐受人群，就需要选择添加乳糖分解酵素补充剂。

5.What you're supposed to know: Milk (cow, goat, sheep, human . . .) contains a sugar called lactose, which is normally broken down by the enzyme lactase.

必备知识：奶类（包括牛奶、山羊奶、绵羊奶及母乳等）含有一种叫作乳糖的糖类，它通常由乳糖酶分解。

6.These allergies shouldn't be confused with lactose intolerance, which is when the body doesn't produce enough of the enzyme lactase to break down lactose, a sugar in cow's milk.

这些过敏症不应和乳糖不耐症混淆，乳糖不耐症指的是身体不能制造足够的乳糖酶来分解乳糖，这正是牛奶中所含的一种糖分。

7.The lactase we add is similar to the lactase created by the body during normal digestion of dairy products.

该乳糖酶，我们补充的是，类似的乳糖酶所造成的人体在正常消化奶类制品。

8.Characteristic and biological function of lactose, lactase deficiency and solving approach is expounded in this paper.

本文阐述了乳糖的特性、生理功能作用、乳糖酶缺乏症及解决途径。

9.A similar, less severe, metabolic disorder is congenital lactase deficiency.

类似的，病症略轻为一点的代谢紊乱疾病是乳糖分解酶素缺乏症。

10.Some dairy products are treated with lactase 乳糖酶 to reduce lactose content.

一些乳制品经过处理，添加了乳糖酶 乳糖酶以减少乳糖含量。

11.If you consume dairy without enough lactase 乳糖酶, it can lead to digestive discomfort.

如果你在没有足够的乳糖酶 乳糖酶的情况下摄入乳制品，可能会导致消化不适。

12.People who are lactose intolerant often lack enough lactase 乳糖酶 to digest dairy products.

乳糖不耐症患者通常缺乏足够的乳糖酶 乳糖酶来消化乳制品。

13.The human body produces lactase 乳糖酶 primarily during infancy.

人类在婴儿期主要产生乳糖酶 乳糖酶。

14.Taking a lactase 乳糖酶 supplement can help those with lactose intolerance enjoy ice cream.

服用乳糖酶 乳糖酶补充剂可以帮助乳糖不耐症患者享受冰淇淋。

作文

Lactose intolerance is a common condition that affects millions of people worldwide. This condition arises when the body does not produce enough of an enzyme called lactase, which is essential for the digestion of lactose, a sugar found in milk and dairy products. When individuals with lactose intolerance consume dairy, they may experience symptoms such as bloating, gas, diarrhea, and stomach cramps. Understanding the role of lactase in our digestive system can help us navigate dietary choices and maintain our health.The enzyme lactase is produced in the small intestine and is responsible for breaking down lactose into two simpler sugars: glucose and galactose. These simpler sugars can then be easily absorbed into the bloodstream. For those who have a deficiency in lactase, lactose remains undigested in the gut, leading to fermentation by bacteria, which causes the uncomfortable symptoms associated with lactose intolerance.There are various reasons why some people may have low levels of lactase. In many cases, this is a genetic trait, where the production of lactase decreases after weaning from breast milk. This decline is particularly common in certain ethnic groups, such as East Asian and Native American populations, where dairy consumption has historically been low. In contrast, populations with a long history of dairy farming, such as those in Northern Europe, tend to retain higher levels of lactase into adulthood.For individuals who are lactose intolerant, there are several strategies to manage their condition. One approach is to limit or avoid dairy products altogether. Fortunately, there are many lactose-free alternatives available on the market, such as lactose-free milk, yogurt, and cheese. These products are treated with lactase to break down the lactose, making them easier to digest for those with intolerance.Another option is to take lactase supplements before consuming dairy products. These supplements contain concentrated amounts of lactase and can help individuals enjoy dairy without discomfort. However, it is important to consult a healthcare professional before starting any supplementation.Additionally, some people find that they can tolerate small amounts of lactose, especially when consumed with other foods. Fermented dairy products, such as yogurt and kefir, often contain lower levels of lactose and are sometimes better tolerated due to the presence of beneficial bacteria that can aid digestion.In conclusion, understanding the role of the enzyme lactase is crucial for anyone dealing with lactose intolerance. By being aware of how lactase functions in the body and exploring dietary adjustments or supplements, individuals can enjoy a varied diet while managing their symptoms. As research continues to evolve, we may discover even more ways to support those with lactose intolerance, ensuring that everyone can enjoy the nutritional benefits of dairy in a way that suits their bodies.

乳糖不耐症是一种常见的疾病，影响着全球数百万人的生活。这种状况发生在身体无法产生足够的酶——乳糖酶，这种酶对于消化乳糖至关重要，乳糖是一种存在于牛奶和乳制品中的糖。当乳糖不耐症患者摄入乳制品时，他们可能会经历腹胀、气体、腹泻和胃痉挛等症状。理解乳糖酶在我们消化系统中的作用可以帮助我们导航饮食选择，保持健康。酶乳糖酶是在小肠中产生的，负责将乳糖分解为两种更简单的糖：葡萄糖和半乳糖。这些简单的糖可以被轻松吸收到血液中。对于那些缺乏乳糖酶的人来说，乳糖在肠道中未被消化，导致细菌发酵，从而引起与乳糖不耐症相关的不适症状。人们可能出现低水平乳糖酶的原因有很多。在许多情况下，这是一种遗传特征，乳糖酶的产生在断奶后减少。这种下降在某些民族群体中尤其常见，例如东亚和美洲土著人群，他们的乳制品消费历史上较低。相比之下，有着较长乳制品养殖历史的人群，如北欧人，往往在成年后保持更高水平的乳糖酶。对于乳糖不耐症患者，有几种管理他们状况的策略。一种方法是完全限制或避免乳制品。幸运的是，市场上有许多无乳糖替代品可供选择，例如无乳糖牛奶、酸奶和奶酪。这些产品经过乳糖酶处理，以分解乳糖，使其对不耐受者更易消化。另一种选择是在食用乳制品之前服用乳糖酶补充剂。这些补充剂含有浓缩的乳糖酶，可以帮助人们在不适的情况下享受乳制品。然而，在开始任何补充之前，咨询医疗专业人士是非常重要的。此外，有些人发现他们能够耐受少量乳糖，尤其是在与其他食物一起摄入时。发酵乳制品，如酸奶和开菲尔，通常含有较低水平的乳糖，并且由于存在有益细菌，可以帮助消化，因此有时更容易耐受。总之，了解酶乳糖酶的作用对于任何应对乳糖不耐症的人来说都是至关重要的。通过了解乳糖酶在体内的功能并探索饮食调整或补充，个人可以在管理症状的同时享受多样化的饮食。随着研究的不断发展，我们可能会发现更多支持乳糖不耐症患者的方法，确保每个人都能以适合自己身体的方式享受乳制品的营养益处。