zsíroldék

Zsíroldék is a Hungarian term that translates to "fat-soluble" in English. It refers to substances that can be dissolved in fats or oils, as opposed to water-soluble substances. This property is important in various biological and chemical contexts.

In biology, many vitamins are classified as zsíroldék. These include vitamins A, D, E, and K. Because they dissolve in fat, these vitamins are absorbed by the body along with dietary fats and are stored in the body's fatty tissues and the liver. This storage allows the body to draw upon them when needed, but it also means that excessive intake can lead to toxicity.

In chemistry, the concept of zsíroldék is fundamental to understanding solubility and partitioning. Many organic compounds, such as lipids, steroids, and certain pesticides, are zsíroldék. This characteristic influences how these substances behave in different environments, such as their ability to penetrate cell membranes or their persistence in the environment. For example, zsíroldék pollutants can accumulate in the fatty tissues of organisms, leading to biomagnification up the food chain. The term is also relevant in the formulation of products like cosmetics and pharmaceuticals, where the solubility of ingredients in oily bases is crucial for delivery and efficacy.