The “chemistry of indexes” parameters and related meaning.
|Refractive index||Unsaturation degree still used|
|Halphen reaction sterculic acid (Malvaceae oils)||No more used, GC of FAMEs and sterols|
|Villavecchia-Fabris and Isodoro Pavolini reactions (In Italy, for Sesame oil)||No more used, GC of FAMEs and sterols|
|Saponification Index||Amount of fatty acids, no more used|
|Esters index||Amount of TAGs, no more used|
|Iodine number||Unsaturation degree still used|
|Thermosulphuric index||Unsaturation degree no more used|
|Acidity index||Quality, still used|
|Peroxide value||Quality, still used|
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