基于Heracles NEO超快速气相电子鼻对苘麻子清炒前后的快速识别及气味差异物质研究

Rapid Identification and Odor Difference Markers of Abutili Semen before and after Stir-Frying Based on Heracles NEO Ultra-Fast Gas-Phase Electronic Nose

    摘要
  • 摘要:
    目的 基于Heracles NEO超快速气相电子鼻对苘麻子饮片清炒前后气味差异标志物进行快速识别研究，拟建立一种基于气味的有效快速识别生、炒苘麻子饮片的方法。
    方法 采用清炒法炒制苘麻子饮片。通过超快速气相电子鼻建立苘麻子饮片清炒前后检测方法，采集气味图谱，结合Aro Chem Base数据库得出可能的气味成分及色谱峰面积，通过化学计量学模型进行分析。
    结果 建立了苘麻子清炒前后气味指纹图谱，苘麻子饮片及炒苘麻子共匹配出19个气味共有峰。正己醛、糠醇、叔丁醇、2-甲基丁醛、3-甲基丁醛、2-甲基丙醛、2，3，5-三甲基吡嗪7个气味成分在炒制后峰面积升高且VIP值均>1(P<0.05)，推测这7个成分为苘麻子炒制前后气味差异标志物。
    结论 Heracles NEO超快速气相电子鼻可快速识别苘麻子炒制前后气味特征成分，可为苘麻子质量控制提供新思路和新方法。

     

    Abstract:
    OBJECTIVE Based on the Heracles NEO ultra-fast gas phase electronic nose, to analyze the odor composition of Abutili Semen before and after stir-frying, and to establish an effective and rapid identification method of raw and stir-frying Abutili Semen based on odor.
    METHODS The decoction pieces of Abutili Semen were prepared by stir-frying method. An ultra-fast gas-phase electronic nose method was established for the detection of Abutili Semen before and after stir-frying, the odor spectrum was collected, and the possible odor components and chromatographic peak areas were obtained in combination with the AroChemBase database, and analyzed by chemometric model.
    RESULTS The odor fingerprints of Abutili Semen before and after stir-frying were established, and 19 odor peaks were matched between Abutili Semen decoction pieces and stir-fried Abutili Semen. The peak areas of 7 odor components, hexanal, 2-furanmethanol, 2-methyl-2-propanol, 2-methylbutanal, 3-methylbutanal, 2-methylpropanal, 2, 3, 5-trimethylpyrazine, all increased after stir-frying, and the VIP values of the peaks were greater than 1 (P<0.05), which were presumed to be the markers for the differences in the odors of Abutili Semen before and after stir-frying.
    CONCLUSION The Heracles NEO ultra-fast gas phase electronic nose can quickly identify the odor components of Abutili Semen before and after frying, which can provide new ideas and methods for quality control of Abutili Semen.

     

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