acid value

简明释义

酸值

英英释义

例句

1.A high acid value in the sample indicates degradation.

样品中的高酸值表明降解。

2.The acid value of the oil is tested to determine its quality.

油的酸值被测试以确定其质量。

3.Manufacturers often specify the maximum allowable acid value in product specifications.

制造商通常在产品规格中指定最大允许的酸值。

4.To ensure safety, the acid value of food products must be monitored.

为了确保安全，食品产品的酸值必须进行监测。

5.The acid value is an important parameter in the assessment of biodiesel quality.

在生物柴油质量评估中，酸值是一个重要参数。

作文

The concept of acid value is crucial in the field of chemistry and various industries, particularly in the production and analysis of fats and oils. The acid value is defined as the amount of potassium hydroxide (KOH) in milligrams that is required to neutralize the free fatty acids present in one gram of a substance. This measurement is significant because it provides insight into the quality and purity of fats and oils. A higher acid value indicates a greater presence of free fatty acids, which can suggest degradation or spoilage of the oil. In the food industry, the acid value is an important parameter to monitor, especially for edible oils. For instance, when manufacturers produce olive oil, they must ensure that the acid value remains low to guarantee the oil's freshness and quality. Consumers often associate lower acid values with better quality oils, as high levels can lead to off-flavors and health concerns. Moreover, the acid value can also affect the shelf life of the product; oils with high acid values tend to have shorter shelf lives due to increased oxidation rates. Beyond the food industry, the acid value is also relevant in the production of biodiesel. As the world shifts towards renewable energy sources, understanding the acid value of feedstocks used in biodiesel production becomes essential. High acid values in feedstocks can complicate the transesterification process, leading to lower yields and increased costs. Therefore, producers often pre-treat oils with high acid values to reduce their acidity before processing them into biodiesel. Additionally, the acid value plays a role in the cosmetic and personal care industries. Many skincare products contain oils that can be evaluated based on their acid values. Products with high acid values may irritate the skin or indicate poor quality, making it essential for manufacturers to monitor this parameter closely. In conclusion, the acid value serves as a vital indicator of the quality and stability of fats and oils across various industries. Understanding its implications can help consumers make informed choices about the products they use, while also guiding manufacturers in maintaining high standards of quality. As we continue to explore the significance of acid value, it becomes clear that this simple measurement carries profound implications for health, safety, and sustainability in our daily lives.

“酸值”这一概念在化学领域和各个行业中至关重要，特别是在脂肪和油的生产与分析中。“酸值”被定义为中和一克物质中游离脂肪酸所需的氢氧化钾（KOH）毫克数。这个测量是重要的，因为它提供了脂肪和油的质量和纯度的洞察。较高的“酸值”表明游离脂肪酸的存在更大，这可能表明油的降解或变质。在食品行业中，“酸值”是一个重要的监测参数，尤其是对于食用油。例如，当制造商生产橄榄油时，他们必须确保“酸值”保持在低水平，以保证油的鲜度和质量。消费者通常将较低的“酸值”与更好的油类质量联系在一起，因为高水平可能导致异味和健康问题。此外，“酸值”也会影响产品的保质期；“酸值”较高的油由于氧化速率增加，往往具有较短的保质期。除了食品行业外，“酸值”在生物柴油的生产中也很相关。随着世界向可再生能源的转变，了解用于生物柴油生产的原料的“酸值”变得至关重要。原料中的高“酸值”可能会使酯化过程复杂化，从而导致产量降低和成本增加。因此，生产者通常会在将其加工成生物柴油之前，对“酸值”较高的油进行预处理，以降低其酸度。此外，“酸值”在化妆品和个人护理行业中也起着作用。许多护肤产品含有可以根据其“酸值”进行评估的油。高“酸值”的产品可能会刺激皮肤或表明质量差，因此制造商需要密切监测这一参数。总之，“酸值”作为脂肪和油质量与稳定性的重要指标，在各个行业中发挥着至关重要的作用。理解其意义可以帮助消费者对所使用的产品做出明智的选择，同时也指导制造商保持高标准的质量。随着我们继续探索“酸值”的重要性，很明显，这一简单的测量对我们日常生活中的健康、安全和可持续性具有深远的影响。