Method for establishing two-dimensional qualitative analysis model by using near-infrared spectroscopy to identify origin place of fresh Fresh Apostichopus japonicus

Abstract

The invention discloses a method for establishing a two-dimensional qualitative analysis model by using near-infrared spectroscopy to identify the origin place of a fresh Fresh Apostichopus japonicus.The method comprises the following steps: sampling fresh Fresh Apostichopus japonicus samples from different origin places to obtain corresponding fresh Fresh Apostichopus japonicus samples; carryingout spectrum acquisition on the Fresh Apostichopus japonicus samples to obtain original near-infrared spectrum data; selecting a target total lipid content; selecting a waveband corresponding to every fresh Fresh Apostichopus japonicus sample by an OPS algorithm, and creating a PLS quantitative model based on the selected wavebands; and establishing the two-dimensional series qualitative analysismodel which is Step I series Step II model, and identifying the origin place of a Fresh Apostichopus japonicus sample to be analyzed. The method realizes the establishment of the two-dimensional series qualitative analysis model by combining near-infrared spectroscopy technology with chemometrics in order to achieve the purpose of rapid and nondestructive identification of Fresh Apostichopus japonicus.

Description

technical field [0001] The invention belongs to identification technology, and in particular relates to a method for establishing a two-dimensional qualitative analysis model by using near-infrared spectroscopy to identify the origin of fresh sea cucumbers. Background technique [0002] Sea sashimi (Apostichopus japonicus) is a kind of rare seafood, mainly distributed in the northern waters of the Western Pacific Ocean. Because of its various health effects and medicinal value, it has a long history of edible and medicinal use in Asian countries. In the sea area of ​​China, there are more than 20 kinds of edible sea cucumber species, among which the sea cucumber (Apostichopus japonicus) produced in the sea area of ​​Huanghai Sea and Bohai Sea has the highest market value because of its excellent health care effect. However, the quality of sea cucumbers is greatly affected by the place of origin. Even if the same species of sea cucumbers are produced in different waters, the ...

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Problems solved by technology

For now, near-infrared spectroscopy combined with chemometrics is widely used in online monitoring, qualitative and quantitative analysis of food and pharmaceuticals due to its convenience, speed, accuracy, economy, no need for cumbersome sample pretreatment, and non-destructive characteristics. Detection. In recent years, there have been many reports on the detection of seafood using near-infrared spectroscopy. However, there has been no report on the identification of fresh sea cucumbers using near-infrared spectroscopy. At present, the existing sea cucumber quality detection methods cannot meet the requirements of fresh sea cucumbers. According to the requirements of rapid analysis and online analysis, the traditional method of identifying the origin of fresh sea cucumbers in the industry generally only relies on appearance and morphological differences, lacking a unified and standardized method; at the same time, modern detection methods for traceability and identification of sea cucumber origin Complicated processing of samples is required, the inspection process is cumbersome, high cost and low efficiency

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