Isomer Definition: An isomer is a chemical species with the same number and types of atoms as another chemical species, but possessing different properties. There are structural isomers, geometric isomers, optical isomers, and stereoisomers.
Here are answers to some common queries that mothers â new and veteran â may have. You can freeze and/or refrigerate your pumped (or expressed) breast milk. Store it in clean bottles with screw caps, hard plastic cups that have tight caps, or nursing bags (pre-sterilized bags meant for breast milk).
If it was pasteurized and unopened, it will stay safe far longer than you were likely to have left your car unattended. Once pasteurized and sealed, milk is arguably sterile and does not require refrigeration, but at least in America, we expect our milk to be cold which is why it is kept in the chiller.