《环境昆虫学报》

探讨不同红火蚁Solenopsis invicta Buren监测诱饵的风味成分，以期获得优化诱饵配方的科学依据。本文采用顶空气相色谱-离子迁移谱法分析不同红火蚁监测诱饵在60℃下的气味指纹图谱，并通过主成分分析法分析其风味物质的差异。结果共鉴定出93个信号峰和87种挥发性化合物，载体物质（CK）中具有较高强度峰的化合物包括3种苯、2种醇、3种酮、2种酯、4种醛、1种呋喃和1种烯；自主配制的诱饵（JR、ZR、JZ）的风味组成相似，较高强度峰的化合物包括2种醇、1种酸、12种醛和1-8桉叶素等；市售火腿肠（HT）中的3种烯、10种酮、1种苯、5种醛、1种呋喃、3种醚、7种醇和4种酯是具有较高强度峰的化合物。主成分分析表明，CK、HT与自主研发的诱饵聚集距离较远，三者均单独聚为一类，相互风味成分区别较大。综上所述，JR、ZR和JZ诱饵中醛类物质较多，而HT中酮类与醇类物质较为丰富。上述诱饵的风味成分分析结果能为研发精准高效的红火蚁监测专用诱饵提供重要信息。

英文摘要:

In order to obtain the scientific basis for optimal bait formulation, the flavor components of different monitoring baits for red imported fire ant (Solenopsis invicta) were studied. Headspace-gas chromatography-ion mobility spectroscopy was used to analyze the odor fingerprints of different monitoring baits at 60℃, and principal component analysis was used to analyze the differences of flavor substances. A total of 93 signal peaks and 87 volatile compounds were identified. The compounds with high strength peaks in carrier material (CK) included 3 benzenes, 2 alcohols, 3 ketones, 2 esters, 4 aldehydes, 1 furan and 1 alkene. The flavor compositions of JR, ZR and JZ samples were similar, and the compounds with higher intensity peaks included 2 alcohols, 1 acid, 12 aldehydes and 1-8 cineole, etc. 3 alkenes, 10 ketones, 1 benzene, 5 aldehydes, 1 furan, 3 ethers, 7 alcohols and 4 esters in HT were compounds with high strength peaks. Principal component analysis showed that CK, HT and monitoring baits had a long clustering distance, and the three were clustered into a single category, with great differences in flavor components. There were more aldehydes in JR, ZR and JZ bait, and more ketones and alcohols in HT bait. The results of the above mentioned bait flavor composition analysis can provide important information for the development of accurate and efficient special bait for the monitoring of S. invicta.

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