不同产地梅干菜理化指标与挥发性成分差异分析Analysis of Physicochemical Indexes and Volatile Component Differences of Pickled and Dried Mustards from Different Places of Origin
陈穗婷,刘媛,曾扬应,赵玲艳,邓放明
摘要(Abstract):
为探讨不同产地梅干菜的品质与挥发性成分差异,该研究选取了15个不同产地的梅干菜为研究对象,利用电子鼻(electronic nose, E-nose)和顶空固相微萃取-气相色谱-质谱联用(headspace solid-phase microextraction-gas chromatography-mass spectrometry, HS-SPME-GC-MS)分析其挥发性成分,并比较其理化指标和挥发性成分的差异。结果表明,15个产地的梅干菜在水分含量、食盐含量、pH值、总酸含量、氨基酸态氮含量、总糖含量和硫代葡萄糖苷含量等理化指标上均存在显著性差异(P<0.05)。各种梅干菜对电子鼻W1W和W2W传感器的反应敏感,表明其含有较高丰度的无机硫化物和有机硫化物。在挥发性成分方面,共检测到75种挥发性成分,不同产地梅干菜中挥发性成分的种类和含量存在差异。通过偏最小二乘判别分析(partial least squares discriminant analysis, PLS-DA)进一步揭示了不同产地梅干菜的挥发性成分间存在显著性差异。该研究不仅揭示了不同产地梅干菜在品质和挥发性成分上差异显著,而且为梅干菜标准化加工及未来产品质量提升提供了科学依据。
关键词(KeyWords): 梅干菜;理化指标;电子鼻;挥发性成分
基金项目(Foundation): 国家特色蔬菜产业技术体系岗位科学家项目(CARS-24-E-02);; 湖南省科技创新计划项目(2024RC8185)
作者(Author): 陈穗婷,刘媛,曾扬应,赵玲艳,邓放明
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