《Characterization of the key aroma compounds in Longjing tea using stir bar sorptive extraction (SBSE) combined with gas chromatography-mass spectrometry (GC-MS), gas chromatography-olfactometry (GC-O), odor activity value (OAV), and aroma recombination》 was published in Food Research International in 2020. These research results belong to Wang, Meng-Qi; Ma, Wan-Jun; Shi, Jiang; Zhu, Yin; Lin, Zhi; Lv, Hai-Peng. Safety of Methyl Salicylate The article mentions the following:
Longjing tea is the most famous premium green tea, and is regarded as the national tea in China, with its attractive aroma contributing as a prime factor for its general acceptability; however, its key aroma compounds are essentially unknown. In the present study, volatile compounds from Longjing tea were extracted and examined using stir bar sorptive extraction (SBSE) combined with gas chromatog.-mass spectrometry (GC-MS). Data obtained from the present study revealed that 151 volatile compounds from 16 different chem. classes were identified by GC-MS anal. Enols (8096 μg/kg), alkanes (6744 μg/kg), aldehydes (6442 μg/kg), and esters (6161 μg/kg) were the four major chem. classes and accounted for 54% of the total content of volatile compounds Geraniol (6736 μg/kg) was the most abundant volatile compound in Longjing tea, followed by hexanal (1876 μg/kg) and β-ionone (1837 μg/kg). Moreover, 14 volatile compounds were distinguished as the key aroma compounds of Longjing tea based on gas chromatog.-olfactometry (GC-O) anal., odor activity value (OAV) calculations, and a preliminary aroma recombination experiment, including 2-Me butyraldehyde, DMSO, heptanal, benzaldehyde, 1-octen-3-ol, (E, E)-2,4-heptadienal, benzeneacetaldehyde, linalool oxide I, (E, E)-3,5-octadien-2-one, linalool, nonanal, Me salicylate, geraniol, and β-ionone. This is the first comprehensive report describing the aroma characterizations and the key aroma compounds in Longjing tea using SBSE/GC-MS. The findings from this study contribute to the scientific elucidation of the chem. basis for the aromatic qualities of Longjing tea. In the experimental materials used by the author, we found Methyl Salicylate(cas: 119-36-8Safety of Methyl Salicylate)
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