With an emphasis on the impact of low temperature on sugars and carbohydrates.
It depends. You have probably found containers of food in your home refrigerator that have become fuzzy with molds or slimy with psychrophilic bacteria. The big question is whether the sample is completely dry. Dry samples are generally stable at 4C. But wet or damp samples can foster microbes that will metabolize your samples. The more concentrated your sample, the less likely it is that it will become colonized. Honey, for example, can be stored at room temperature even though it is full of carbohydrates that bacteria and fungi would love because honey is so concentrated that it prevents metabolism from occurring unless it gets diluted.
Also, note that if your sample is hygroscopic (and many extracts are) it will absorb water from the atmosphere in the refrigerator to form a dilute solution on the surface. This surface fluid can be colonized. But if your container is tightly sealed, this should not be a problem.
In addition to Jeo Olechino notation , the store your sample depends on the nature of your extract weather aqueous or alcoholic mixture. but generally cover you mixture aluminium foil from light source for precautions .
Dear Dr. Joe Olechno and Dr. Alaa J Mahrath,
Thank you very much for your help and your advices
- Badges
- Science topic
- Similar topics
- Biological Science
- Botany
- Pharmaceutical Botany
- Plant Extracts