the.com/rancidity
fat's midlife crisis: oxygen shows up and everything goes wrong.
means the chemical breakdown of fats and oils into smelly, off-tasting compounds when oxygen or bacteria get to them.
from from latin rancidus, meaning stinking or rank, describing the sour stench of spoiled grease long before anyone knew what a free radical was.
two pathsoxidative rancidity and hydrolytic rancidity work differently
culpritoxygen attacks unsaturated fat bonds first
nose knowshumans detect it at parts per billion
not just smellproduces aldehydes linked to cellular damage