acetaldehyde

简明释义

英[ˌæsɪˈtældɪˌhaɪd]美[ˌæseˈtældəˌhaɪd]

n. [有化] 乙醛；醋醛

英英释义

单词用法

同义词

反义词

例句

1.Lining your stomach reduces the rate at which acetaldehyde is absorbed, meaning that symptoms of a nasty hangover are slowed to a crawl.

帮助你的胃降低酒精被吸收的速度，也就是说宿醉的症状就会有所延缓。

2.The reasons and countermeasures for the high acetaldehyde content in the bottle grade polyester chips are discussed.

探讨瓶级聚酯切片乙醛含量高的原因和采取的对策。

3.Alcohol dehydrogenase an enzyme that converts ethanol into acetaldehyde (ethanal).

醇脱氢酶：把乙醇转化为乙醛的酶。

4.In addition, acetaldehyde, ethyl acetate, ethyl caproate, ethyl valerate, ethyl lactate and some other unidentified compositions were also detected.

发酵过程中还检测到乙醛、乙酸乙酯、己酸乙酯、戊酸乙酯和乳酸乙酯等成分及一些未知成分。

5.Acetaldehyde eventually turns into something called acetate, and when that happens, your symptoms let up and you start to feel much better.

乙醛最终会变成一种叫醋酸的东西，当这种情况发生时，你的症状会缓解，这时你就会感觉好多了。

6.The products acetaldehyde, ketones and organic acids accumulate in the culture medium.

反应产生的乙醛、酮和有机酸可以在培养基中积累。

7.It was formerly derived by fermentation of carbohydrates but is now made synthetically by aldol condensation of acetaldehyde or by oxidation of petroleum gases.

以前它是由碳水化合物发酵得到，现在由乙醛醛醇缩合或石油气体氧化的合成方法制得。

8.Alcohol and acetaldehyde altered fluidity of VYS and lead to functional disorder, this probably plays important roles in human fetal alcohol syndrome induced.

乙醇，乙醛均能改变VYS细胞膜脂质流动性引起VYS细胞功能紊乱，它很可能在诱发胎儿酒精综合征起重要作用。

9.And it can mean a toxic breakdown product of alcohol called acetaldehyde - another carcinogen - can accumulate in the oral cavity when swished around the mouth.

而且酒精的代谢产物乙醛也容易通过漱口过程在口腔中堆积，这种物质也会致癌。

10.Exposure to high levels of acetaldehyde can cause irritation to the eyes, skin, and respiratory system.

暴露于高浓度的乙醛可能会导致眼睛、皮肤和呼吸系统的刺激。

11.Researchers are studying the role of acetaldehyde in the metabolism of alcohol and its effects on human health.

研究人员正在研究乙醛在酒精代谢中的作用及其对人类健康的影响。

12.In industrial applications, acetaldehyde is used as a precursor for various chemicals, including plastics and resins.

在工业应用中，乙醛被用作多种化学品的前体，包括塑料和树脂。

13.The production of ethanol involves the intermediate formation of acetaldehyde, which is a key component in the fermentation process.

乙醇的生产涉及中间产物的形成，即乙醛，这是发酵过程中的关键成分。

14.The presence of acetaldehyde in tobacco smoke is one of the reasons for its harmful effects on health.

烟草烟雾中存在的乙醛是其对健康有害的原因之一。

作文

Acetaldehyde, or 乙醛, is a colorless, volatile liquid that has a distinctive fruity odor. It is an important organic chemical compound and serves as a precursor in the synthesis of various chemicals. Acetaldehyde is primarily produced by the oxidation of ethanol, which is found in alcoholic beverages. This compound plays a significant role in the production of acetic acid, which is widely used in the food industry as a preservative and flavoring agent. In addition to its industrial applications, 乙醛 is also naturally present in small amounts in fruits and vegetables, contributing to their aroma and flavor profile.The significance of acetaldehyde extends beyond its use in manufacturing. In the human body, it is produced during the metabolism of alcohol. When a person consumes alcohol, the liver converts it into acetaldehyde before further breaking it down into acetic acid. This process is crucial because acetaldehyde is considered toxic and is associated with various health issues, including hangovers and potential carcinogenic effects. Research has shown that high levels of 乙醛 can lead to oxidative stress and damage to cells, emphasizing the importance of understanding this compound in the context of health and safety.Environmental concerns also arise from the presence of acetaldehyde. It is classified as a volatile organic compound (VOC), which means it can easily evaporate into the atmosphere. VOCs contribute to air pollution and can have detrimental effects on both human health and the environment. In urban areas, the combustion of fossil fuels and emissions from vehicles can increase the concentration of 乙醛 in the air, leading to respiratory problems and other health risks for the population.In conclusion, acetaldehyde is a multifaceted compound with significant implications in various fields, including chemistry, biology, and environmental science. Its role as a byproduct of alcohol metabolism highlights the need for moderation in alcohol consumption to avoid the adverse effects associated with high levels of 乙醛. Additionally, as we strive for cleaner air and a healthier environment, understanding the sources and impacts of this compound is essential. Continued research into acetaldehyde will help us mitigate its negative effects while harnessing its benefits in industry and nature.

乙醛是一种无色、挥发性的液体，具有独特的水果香味。它是重要的有机化合物，在各种化学品的合成中起着前体的作用。乙醛主要通过氧化乙醇产生，乙醇存在于酒精饮料中。该化合物在醋酸的生产中发挥着重要作用，醋酸广泛用于食品工业，作为防腐剂和调味剂。除了工业应用外，乙醛在水果和蔬菜中也自然存在少量，贡献了它们的香气和风味特征。乙醛的重要性超越了其在制造中的使用。在人体内，它是在酒精代谢过程中产生的。当一个人摄入酒精时，肝脏将其转化为乙醛，然后进一步分解为醋酸。这个过程至关重要，因为乙醛被认为是有毒的，并与各种健康问题相关，包括宿醉和潜在的致癌效应。研究表明，高水平的乙醛会导致氧化压力和细胞损伤，这强调了在健康和安全背景下理解这种化合物的重要性。环境问题也源于乙醛的存在。它被归类为挥发性有机化合物（VOC），这意味着它可以很容易地蒸发到大气中。挥发性有机化合物会导致空气污染，并可能对人类健康和环境产生不利影响。在城市地区，化石燃料的燃烧和车辆排放会增加空气中乙醛的浓度，导致呼吸问题和其他健康风险。总之，乙醛是一种多面化合物，在化学、生物学和环境科学等各个领域具有重要意义。它作为酒精代谢的副产品的角色突显了适度饮酒的必要性，以避免与高水平乙醛相关的不良影响。此外，随着我们努力实现更清洁的空气和更健康的环境，理解这种化合物的来源和影响至关重要。对乙醛的持续研究将帮助我们减轻其负面影响，同时利用其在工业和自然界中的益处。