Analysis of Zijuan tea aroma components of fully automatic HS-SPME

The aromatic components of Yunnan specific Zijuan sun-dry green tea and Zijuan basket-fired green tea were extracted by fully automated headspace solid-phase microextraction (HS-SPME) , and were identified by gas chromatography-mass spectrometry (GC-MS) . Then comparison difference with the regular Daye sundry green tea was made. Results showed that the aromatic components of Zijuan sun-dry green tea and Zijuan basket-fired green tea were very close, but more abundant than that of Daye sun-dry green tea. The major aromatic components in Zijuan sun-dry green tea were linalool, dihydroactinidiolide, 3, 7-octadiene-2, 6-diol2, 6-dimethyl, caffeine, 6, 10, 14-trimethyl-2-Pentadecanone, beta-ionone, hexadecane, phytol, geraniol, linalool oxide, α-terpineol, the major aromatic components in Zijuan basket-fired green tea were phytol, caffeine, linalool, hexadecane, linalool oxide, dihydroactinidiolide, octadecane, jasmone, benzoic acid cis-3-hexenyl ester, nerolidol, heptadecane, while the major aromatic components in Daye sun-dry green tea were phytol, linalool, caffeine, beta-ionone, diisobutyl phthalate, 6, 10, 14-trimethyl-2-Pentadecanone, hexadecylic acid, dibutyl phthalate, geranylacetone, etc.