【摘要】 为探讨投喂生物饵料（对照组J-A）与人工配合饲料（试验组J-B）对棘胸蛙(Quasipaa spinosa)肌肉挥发性风味物质的影响，本研究采用气相色谱-离子迁移谱(gas chromatography-ion mobility spectroscopy,GC-IMS)技术，分析了检测两种饵料饲养棘胸蛙后肌肉挥发性风味物质的组成与相对含量差异，并进行指纹图谱对比。结果显示，二组肌肉均检测出45个峰，共鉴定出30种挥发性物质，主要包括醛类、酮类和醇类；J-A组和J-B组的主要挥发性物质相对含量构成存在显著差异，具体为：醛类占比分别为50.45%和43.13%，醇类占比分别为18.72%和5.08%，酮类占比分别为28.40%和49.56%。与JA组相比，J-B组肌肉中己醛、壬醛和庚醛等腥味物质的含量显著降低，表明投喂人工配合饲料可以明显降低棘胸蛙肌肉的腥味，改善其肌肉品质。本研究结果可为棘胸蛙肌肉品质评价以及产品鉴别提供参考。更多还原

【Abstract】 In order to explore the effects of feeding biological bait(control group J-A) and artificial compound feed(experimental group J-B) on volatile flavor compounds in muscle of Quasipaa spinosa,the volatile flavor compounds in the muscle of Quasipaa spinosa reared on two feeds were detected by gas chromatography-ion mobility spectroscopy, and the fingerprints were compared and analyzed. The volatile flavor substances in the two groups of muscles were detected in 45 peaks with 30 substances, including aldehydes, ketones, alcohols and other substances, and there were 15 aldehydes, 8 ketones, 3 alcohols, 1 acid, 1 furan, 1 puzzle and 1 unknown substance. The relative contents of volatile substances in J-A and J-B were as follows: aldehydes(50.45%, 43.13%), alcohols(18.72%, 5.08%), ketones(28.40%, 49.56%), acids(0.65%, 0.84%), ethers(0.14%, 0.27%), furans(1.31%, 0.29%) and unknown substances(0.30%, 0.72%). Among the main volatile flavor substances, the relative content of aldehydes and alcohols J-A was greater than that of J-B, and the relative content of ketones was less than that of J-B. Feeding artificial compound feed can significantly reduce the volatile odor substances such as hexanal, nonanal and heptanal in the muscle of Quasipaa spinosa, improve the muscle quality of Quasipaa spinose. The results of this study provide a certain reference for the evaluation of muscle quality of Quasipaa spinosa and the identification of products.更多还原