以新疆尉犁地区微波杀青的罗布白麻茶和红麻茶为样品,从感官、无机与有机成分含量、体外抗氧化能力等多个方面进行比较,并检测了2种罗布麻茶的强心苷含量。结果显示:罗布白麻茶在香气、有益矿质元素含量上不及罗布红麻茶,但其主要有机物质含量,包括水浸出物、游离氨基酸、茶多酚以及总黄酮含量等多个方面均高于罗布红麻茶,其体外清除.OH和DPPH的能力也显著强于罗布红麻茶;2种罗布麻茶中的强心苷含量均微弱。但由于罗布白麻叶片表面角质层较厚,阻碍了有效物质泡出,从而使条形茶茶汤的总黄酮含量远低于同样条件下冲泡的罗布红麻。由此可见,罗布白麻可以代替罗布红麻生产保健茶,但加工工艺需要改进。

Sensory qualities,inorganic contents,organic components and cardiac glycosides,and antioxidant abilities of Apocynum venetum tea and Poacynum hendersonii tea from Yuli,Xinjiang province were compared.The tea leaves were killed out by microwave.Results showed that A.venetum tea had better aroma and higher mineral elements while P.hendersonii tea had higher contents of water extracts,free amino acids,polyphenol and total flavonoid,and its scavenging abilities against.OH and DPPH were also stronger;cardiac glycosides were not detected out in both teas.However,the heavy cuticles on the surface of P.hendersonii leaves affected the infusion of active substances.The total flavonoid contents in its infusions were far lower than those from A.venetum tea.This indicated that Poacynum hendersonii tea can substitute of A.venetum for healthy tea production if the processing method improved.