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A method for quickly identifying the origin of ham

A technology of ham and origin, which is applied in the field of rapid identification of ham origin based on gas phase-ion mobility spectrometry technology combined with chemical analysis, can solve the problem that sensory evaluation and detection methods cannot meet the evaluation effect and efficiency, and achieves no need for sample pretreatment and operation Simple, fast analysis results

Active Publication Date: 2022-02-18
YUNNAN AGRICULTURAL UNIVERSITY
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Problems solved by technology

[0005] In order to achieve the above purpose, the present invention provides a method for quickly identifying the origin of ham, which solves the problem that the conventional sensory evaluation and detection methods in the prior art cannot satisfy the evaluation effect and efficiency.

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  • A method for quickly identifying the origin of ham
  • A method for quickly identifying the origin of ham
  • A method for quickly identifying the origin of ham

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Embodiment 1

[0039] A method for quickly identifying the quality and origin of Yunnan ham, the method comprising the following steps:

[0040] Step S1, the establishment of the volatile organic compound database of Yunnan ham from different origins:

[0041] The Yunnan hams from different origins were washed and trimmed, and then the biceps femoris was taken to remove the fat and connective tissue. After being chopped with a chopping machine, the gas-phase ions of Yunnan ham samples from different origins were obtained by using a flavor analyzer. Migration spectra and fingerprints;

[0042] Specifically: take Xuanwei ham, Sanchuan ham, Nuodeng ham, Saba ham and Heqing ham respectively, after washing and trimming, take the biceps femoris of the ham, remove fat and connective tissue, and chop it with a chopping machine. Take 1 g of ham samples from each origin and place them in 20 mL headspace sampling vials. The detection conditions of the flavor analyzer are shown in Table 1, and the sys...

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Abstract

The invention relates to a method for quickly identifying the origin of ham. The method includes the following steps: using gas phase-ion mobility spectrometry to detect the volatile components of hams from different origins, characterizing the characteristic information of the ham samples with the ion drift time and ionic strength corresponding to the compounds at different retention times, and using statistical analysis methods to analyze the ham samples. The response intensity data of different samples were compared and analyzed, and the database of volatile organic compounds in hams from different origins was established; the volatile compounds of the hams to be tested were detected by gas phase-ion mobility spectrometry with the same parameters, and compared with the established database, the hams to be tested were determined. origin. The present invention can objectively, quickly and accurately analyze the differences in the flavors of hams from different origins, make up for the subjective defects in the previous sensory analysis, and fill the vacancy in the existing detection technology that cannot meet the evaluation effect and efficiency requirements, and can be applied Identification of the origin of ham.

Description

technical field [0001] The invention belongs to the field of rapid analysis and detection, and relates to a method for quickly identifying the origin of ham based on a gas phase-ion mobility spectrometry (GC-IMS) technology combined with a chemical analysis method. Background technique [0002] Ham is a cured meat product processed by traditional techniques. It is deeply loved by consumers because of its unique flavor and taste. There are many kinds of ham, and the flavor of ham is closely related to the place of origin, processing technology and fermentation time, etc. These differences can lead to the difference of volatile compounds in ham. Generally speaking, ham should not be less than 10 months from curing to maturity, and the older it is, the more fragrant it will be, and the higher its value will be. In order to pursue high profits, unscrupulous merchants pass off cold storage hams as well-known brand hams. In addition, hams from different origins will have differe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/88
CPCG01N30/88G01N2030/8809
Inventor 廖国周丁习林王桂瑛普岳红葛长荣
Owner YUNNAN AGRICULTURAL UNIVERSITY
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