The Claim
The formation of cholesteryl esters in saithe viscera oil increases with storage time at 4°C, and this increase is accompanied by a reduction in free fatty acid content, indicating that free fatty acids are consumed in esterification reactions rather than undergoing oxidation.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
When saithe viscera oil is stored at 4°C over time, cholesteryl esters form and free fatty acids decrease, showing that free fatty acids are being used to make esters instead of breaking down through oxidation.
See the scientific wording
The formation of cholesteryl esters in saithe viscera oil increases with storage time at 4°C, which is associated with a reduction in free fatty acid content in the oil, suggesting that free fatty acids are being consumed in esterification reactions rather than oxidizing.
When fish tissue is stored cold, enzymes break down fats to release free fatty acids, which then bind to cholesterol molecules to form new fat-cholesterol compounds. These new compounds are less detectable by standard tests, making it look like the free fatty acids disappeared, even though they were not spoiled or broken down by oxygen.
What the research says
1 studyWhen saithe fish parts are kept cold for a few days, the oil changes: some free fatty acids disappear because they bond with cholesterol to form new molecules, not because they spoil. This was seen directly in the lab using special scans.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.