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

As a key reagent in cell culture experiments, media products are the focus of attention of operators. The color change of the medium may be related to the storage method, temperature, or it may be because the product has deteriorated. Recently, some customers have telephoned this question. The technical staff of our company will analyze the reasons as follows:
First, the normal difference in dry powder color difference: the color difference within the allowable range caused by the batch-to-batch difference of the indicator.
Second, solution and plate color difference
1. normal difference 1 caused by the difference between batches of indicators;
2 Some media containing acid-base indicators have a pH range, and within this range, a slight difference in color is also a normal phenomenon.
2. Abnormal condition 1 The abnormal pH value may be caused by abnormal pH of the culture medium or the formulated water;
2 The autoclaving process has an effect on the color. Third, you should pay special attention to the preservation of the medium.
1. Storage conditions: Store in a cool, dry place away from light. After use, tighten the cap to avoid moisture absorption, oxidation or contamination.
2. Dry powder shelf life: Generally unopened culture medium can be guaranteed for 3 years, and the opened seal can be guaranteed for half a year. It is recommended to indicate the date of opening on the bottle.
3. Special preservation requirements for individual varieties: SC enrichment solution, it is recommended to refrigerate after opening, which can extend the shelf life.
Do you understand now? If you have any questions, please call us. Shanghai Hengyuan medium price guarantees double quality and technical services are in place.