Do you know what caused the color of the culture product to change? -Huaqiang Electronic Network

As a critical component in cell culture experiments, media products are always a top concern for lab operators. It's not uncommon for users to notice changes in the color of the medium and wonder about the cause. This can be due to various factors such as storage conditions, temperature, or even product degradation. Recently, several customers have reached out with this question, so our technical team has put together the following analysis: First, it’s important to note that slight variations in the color of dry powder media are normal. These differences are often due to batch-to-batch variations in the indicators used. Second, when it comes to liquid media or plates, color differences may occur for a few reasons: 1. Normal variation caused by different batches of indicators. 2. Some media contain pH indicators that may show minor color shifts within their normal pH range — this is still considered normal. However, there are also abnormal situations to watch out for: 1. If the pH of the medium or the water used for preparation is off, this can lead to unexpected color changes. 2. The autoclaving process itself can affect the color of the medium, especially if the temperature or time was not properly controlled. Third, proper storage is essential to maintain the quality of your media: 1. Store the media in a cool, dry place away from direct sunlight. After opening, make sure the container is tightly sealed to prevent moisture absorption, oxidation, or contamination. 2. Unopened media typically has a shelf life of up to three years, while opened media should be used within six months. It's a good practice to label the bottle with the date it was opened. 3. Some specific types, like SC enrichment solution, require refrigeration after opening to extend their usability. Understanding these factors can help you better manage your media and avoid unnecessary concerns. If you have any questions or need further assistance, feel free to contact us. At Shanghai Hengyuan, we guarantee competitive pricing, high-quality products, and reliable technical support. Let us help you achieve the best results in your experiments.

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