不同产地陈皮油中3种多甲氧基黄酮含量及香气成分分析

Contents of three kinds of multi-methoxy flavonoids and aroma components in tangerine peel oils from different origins

测定了广西、广东新会、广州近郊、江西、湖南等5个陈皮主产地的陈皮油中3种多甲氧基黄酮(川陈皮素、七甲氧基黄酮、橘皮素)的含量及其香气成分,并进行了比较分析,为陈皮原料的选择及陈皮产地的鉴别提供依据。多甲氧基黄酮的测定结果表明,5个不同产地的陈皮油中,3种多甲氧基黄酮含量存在明显差异;其中广西产地的陈皮油中3种多甲氧基黄酮的含量最高、为33.401 mg/m L;其次是广东新会、江西和广州近郊的陈皮油,分别为19.091、18.058、16.710 mg/m L;而湖南的陈皮油含量最低、为8.705 mg/m L。GC/MS结果表明,广东新会产陈皮油含41个成分,远丰富于其他产地,其他4个产地陈皮油所含成分主要是烯类物质(如D-柠檬烯等),含量均达到陈皮油的95%以上,而广东新会陈皮油除了含烯类物质外,还含有较多的烷类和少量的醛、醇类物质,以及维他命E、甜橙素等。

In this study, the contents of three individual polymethoxylated flavonoids （nobiletin, seven- methoxy flavonoids, tangeretin ） and the aroma components were compared and analyzed in the tangerine peel oils from Guangxi, Guangdong Xinhui, Guangzhou suburbs, Jiangxi and Hunan, to provide evidence for the selection of tangerine peel and the origin identification. The results of the determination of polymethoxylated flavonoids showed that the contents of three individual polymathoxylated flavonoids in tangerine peel oils from the five different origins varied significantly, the tangerine peel from Guangxi ranked the highest, with the total of 33.401 mg/mL, followed by the tangerine peel oils from Guangdong Xinhui, Jiangxi and Guangzhou suburbans, which were 19.091, 18.058 and 16.710 mg/mL respectively; and the total contents of the three individual polymethoxylated flavonoids from Hunan origin Tangerine peel was the lowest with 8.705 mg/mL. The GC/MS results showed that tangerine peel oil from Guangdong Xinhui contained 41 constituents, with the main component of olefine, alkane and also a small amount of aldehyde, alcohols, vitamin E, sinensetin and so on, which was far richer than other 4 tangerine peel oils, whose constituents were mainly alkene substances （ such as D- limonene etc. ） . These substances accounted for above 95% of the total tangerine peel oil component.