| Carya cathayensis oil was extracted by cold pressing and aqueous enzymatic methods, respectively.The contents of total polyphenols, total flavonoids, vitamin E, squalene, β -sitosterol and fatty acids composition and content in the cold pressed oil and aqueous enzymatic oil were determined to analyze the effects of cold pressing and aqueous enzymatic extraction method on the content of active ingredients in Carya cathayensis oil.The results showed that the contents of total polyphenols, total flavonoids and vitamin E in cold pressed Carya cathayensis oil were significantly higher than those in aqueous enzymatic method, while the contents of squalene and β-sitosterol were significantly lower than those in aqueous enzymatic method. A total of 11 kinds of fatty acids were detected in cold pressed Carya cathayensis oil, and 8 kinds of fatty acids were detected in aqueous enzymatic Carya cathayensis oil. The total content of unsaturated fatty acids in Carya cathayensis oil extracted by the two methods was more than 90%. |
