| With oil-tea camellia seed oils from different processes (cold pressing, hot pressing, solvent extraction, supercritical CO2 extraction, fresh pressing and aqueous enzymatic extraction) as research objects, the contents of polyphenols, flavonoids, procyaninides, total triterpenoids and lignins were studied. The results showed that the contents of polyphenols, flavonoids, procyaninides, total triterpenoids and lignins in crude cold pressed oil were higher than those in crude solvent extracted oil. The contents of polyphenols, flavonoids, total triterpenoids and lignins in oil-tea camellia seed oils extracted by supercritical CO2 and aqueous enzymatic method were higher. The contents of polyphenols, flavonoids, procyaninides, lignins and total triterpenoids in fresh pressed oil-tea camellia seed oil were 271.6, 157.2, 1 400.0, 180.0 mg/kg and 125 mg/g, which were far higher than those in the other five processes. The fresh pressed oil-tea camellia seed oil was a kind of high-quality edible oil, and had wide edible and medicinal value. |
