Full
Outline
To investigate the flavor quality characteristics of sun-dried green tea from Mangjing Village, Jingmai Mountain.
Sun-dried green tea samples from different regions were selected as research objects. The quality components of tea samples were detected by biochemical component analysis, electronic nose technology and headspace solid-phase microextraction-gas chromatography-mass spectrometry, and the key aroma components were screened in combination with the relative odor activity value.
The biochemical components of sun-dried green tea from different regions showed certain differences, whereas the overall variation was relatively small. Electronic nose analysis indicated that all samples exhibited the highest response values on the W1S sensor. Although differences in volatile compounds were observed among samples, their overall odor profiles were highly similar. A total of 126 volatile compounds were identified by gas chromatography-mass spectrometry.Among them, linalool, hexanal, nonanal, octanal, heptanal, hexanol, α-ionone, α-terpineol and 1-octen-3-ol were identified as key aroma-active compounds in tea samples from different regions.
Under the same mountain ecological environment, regional differences exert relatively limited effects on the flavor characteristics of sun-dried green tea. This study provides a reference for revealing the regional flavor characteristics of sun-dried green tea from Mangjing Village, Jingmai Mountain.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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