phenols

简明释义

英[ˈfiːnɒlz]美[ˈfiˌnoʊlz]

n. 酚类；酚类化合物（phenol 的复数）；[药]石炭酸

英英释义

单词用法

同义词

反义词

例句

1.Flavonoids, Phenols and triterpenes are the main constituent exist in Desmodium triquetrum(L. )DC.

葫芦茶中主要含黄酮类、酚类及三萜类等化学成分。

2.Halogenated, sulphonated, nitrated or nitro-sated derivatives of phenols or phenolalco-hols.

酚及酚醇的卤化、磺化、硝化或亚硝化衍生物。

3.Phenols are one of the important secondary metabolism products of plants.

酚类物质是重要的植物次生代谢物质之一。

4.And phenols are also loaded with antioxidants which help to battle free radicals that can cause disease.

碱类物质也可以承载抗氧化剂物质，协助抵抗可能会导致疾病的自由基。

5.They found that on tannin-rich oak leaves, the virus is considerably less effective at killing caterpillars than when it is on aspen leaves, which are lower in phenols.

他们发现，在富含单宁酸的橡树叶上，病毒杀死毛虫的效果要比在白杨树叶子上的效果差得多，因为白杨树叶子的酚含量较低。

6.Phenols contents in the core was 2.7 times higher than that in the flesh.

分析表明，鸭梨果心有较高的底物含量，约为果肉的2.7倍。

7.For these reasons, the benefits to the caterpillars of ingesting phenols appear to outweigh the costs.

出于这些原因，对毛毛虫来说，摄入苯酚的好处似乎比代价多。

8.Phenols is the primary pollutant for the human health.

酚类是主要的危害健康污染物。

9.In the laboratory, we often test for phenols using specific reagents.

在实验室中，我们通常使用特定试剂测试酚类化合物。

10.The presence of phenols in the water can indicate pollution.

水中存在酚类化合物可能表明污染。

11.Many natural products contain phenols that have antioxidant properties.

许多天然产品含有具有抗氧化特性的酚类化合物。

12.The phenols in red wine are thought to contribute to its health benefits.

红酒中的酚类化合物被认为有助于其健康益处。

13.Some phenols can be toxic and require careful handling.

某些酚类化合物可能是有毒的，需要小心处理。

作文

In the world of chemistry, few compounds are as intriguing and versatile as phenols. These organic compounds, characterized by their hydroxyl (-OH) group attached to an aromatic hydrocarbon group, play a crucial role in various fields, including medicine, agriculture, and materials science. Understanding phenols is essential for anyone interested in the chemical sciences, as they have both beneficial properties and potential hazards that must be managed carefully.One of the most notable features of phenols is their presence in many natural substances. For instance, they are found in plants, where they contribute to the color, flavor, and aroma of fruits and vegetables. Many phenols exhibit antioxidant properties, which means they can neutralize free radicals in the body and help prevent cellular damage. This has led to a growing interest in the health benefits of consuming foods rich in phenols, such as berries, green tea, and dark chocolate. Research suggests that these compounds may play a role in reducing the risk of chronic diseases, including heart disease and cancer.However, while many phenols are beneficial, it is important to recognize that not all phenols are safe. Some synthetic phenols, such as bisphenol A (BPA), have been linked to adverse health effects. BPA is commonly used in the production of plastics and has raised concerns due to its potential endocrine-disrupting properties. This highlights the need for rigorous testing and regulation of phenols in consumer products to ensure public safety.In addition to their health implications, phenols are also significant in industrial applications. They are used in the manufacture of resins, adhesives, and coatings. For example, phenolic resins are known for their durability and resistance to heat, making them ideal for use in electrical insulators and automotive parts. The versatility of phenols allows for innovation in materials science, leading to the development of new products that enhance our daily lives.Moreover, the agricultural sector has recognized the importance of phenols in pest management. Certain phenols can act as natural pesticides, helping to protect crops from harmful insects and diseases without the need for synthetic chemicals. This approach not only supports sustainable farming practices but also aligns with the growing consumer demand for organic produce.In conclusion, phenols are a fascinating group of compounds that have far-reaching implications in our lives. From their natural occurrence in food to their industrial applications and health effects, understanding phenols is essential for advancing knowledge in chemistry and improving public health. As research continues to uncover the complexities of phenols, it is crucial to balance their benefits with potential risks, ensuring that we harness their power responsibly. Whether we are enjoying a cup of green tea or using a durable plastic product, phenols are undoubtedly present, influencing our health and environment in profound ways.

在化学的世界里，少有化合物像酚类那样引人入胜和多才多艺。这些有机化合物的特征是它们的羟基（-OH）基团与芳香烃基团相连，它们在医学、农业和材料科学等多个领域发挥着至关重要的作用。理解酚类对于任何对化学科学感兴趣的人来说都是必不可少的，因为它们具有有益的特性和潜在的危害，必须谨慎管理。酚类最显著的特点之一是它们存在于许多天然物质中。例如，它们在植物中被发现，促进水果和蔬菜的颜色、味道和香气。许多酚类表现出抗氧化特性，这意味着它们可以中和体内的自由基，帮助防止细胞损伤。这导致了对富含酚类食物健康益处的日益关注，例如浆果、绿茶和黑巧克力。研究表明，这些化合物可能在降低慢性疾病风险方面发挥作用，包括心脏病和癌症。然而，虽然许多酚类是有益的，但认识到并非所有酚类都是安全的也很重要。一些合成酚类，例如双酚A（BPA），已被与不良健康影响联系在一起。BPA通常用于塑料生产，并因其潜在的内分泌干扰特性而引发担忧。这突显了对消费者产品中酚类进行严格测试和监管的必要性，以确保公众安全。除了健康影响外，酚类在工业应用中也具有重要意义。它们用于制造树脂、粘合剂和涂料。例如，酚醛树脂以其耐用性和耐热性而闻名，使其成为电气绝缘体和汽车零件的理想材料。酚类的多才多艺使得材料科学中的创新成为可能，促使新产品的发展，改善我们的日常生活。此外，农业部门已经认识到酚类在害虫管理中的重要性。某些酚类可以作为天然农药，帮助保护作物免受有害昆虫和疾病的侵害，而无需使用合成化学品。这种方法不仅支持可持续农业实践，而且与消费者对有机农产品日益增长的需求相一致。总之，酚类是一组迷人的化合物，对我们的生活产生深远的影响。从它们在食物中的自然存在到它们的工业应用和健康影响，理解酚类对于推动化学知识的进步和改善公共健康至关重要。随着研究继续揭示酚类的复杂性，平衡它们的好处与潜在风险至关重要，确保我们负责任地利用它们的力量。无论是享用一杯绿茶，还是使用耐用的塑料制品，酚类无疑都存在，深刻影响着我们的健康和环境。