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Outline
Eucommia ulmoides bark is an important traditional Chinese medicinal material, but its harvesting often damages the trees. Eucommia ulmoides leaves and male flowers have emerged as excellent alternative resources due to their rich content of bioactive compounds such as lignans, iridoids and flavonoids, along with their higher sustainability. Notably, the inclusion of Eucommia ulmoides leaves in the medicinal and food homologous directory in 2023 has laid a foundation for their application in daily health products like herbal teas. Currently, the processing of Eucommia ulmoides tea primarily adapted techniques used for traditional tea [Camellia sinensis (L.) O. Ktze.], with a focus on green tea and black tea production, along with limited attempts in dark tea and oolong tea processing. This review summarized the existing processing techniques and research progress in key steps such as enzyme inactivation and drying, while also pointed out their limitations. However, due to significant compositional differences between leaves of Eucommia ulmoides and Camellia sinensis, whether the direct transfer of traditional tea processing techniques from Camellia sinensis was truly beneficial for enhancing the sensory quality and retaining functional components of Eucommia ulmoides tea remains a questionable issue. Therefore, future research should focus on investigating the substance transformation mechanisms during processing, with an emphasis on developing innovative techniques aimed at preserving color, enhancing aroma, optimizing flavor and improving functionality, so as to promote the high value utilization of Eucommia ulmoides resources.
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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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