A method for identifying the origin of agricultural products

Abstract

The invention relates to a discrimination method, in particular to a method for identifying the origin of agricultural products, which is mainly applicable to the origin identification of schisandra chinensis. Through qualitative and / or quantitative determination of the independent variable factor in the pulverized Schisandra chinensis sample, after regression using the independent variable factor model, determine the origin of the sample according to the level of the dependent variable; the independent variable factor (Xj) is δ15N, schisandra alcohol A content, schisandrin A content, schisandrin A content, schisandrin B content, B content, Sr content. Taking Schisandra chinensis as an example to carry out research on origin traceability technology, and to screen out "geo-tags" that effectively indicate the origin of Schisandra chinensis, it will not only help to ensure the safety of consumers' medicine and food, realize the protection of the origin of authentic medicinal materials, but also provide a theory for the optimal planting of Schisandra chinensis in accordance with. This technology can also be popularized and applied to the quality safety and control of agricultural products in our country, and has broad application prospects.

Description

technical field

[0001] The invention relates to a discrimination method, in particular to a method for identifying the origin of agricultural products, which is mainly applicable to the origin identification of schisandra chinensis. Background technique

[0002] As a multifunctional and multipurpose plant with both medicinal and edible uses, Schisandra chinensis is widely distributed in more than 20 provinces and autonomous regions in my country. Introduction and cultivation is the main method for the expansion and regeneration of Schisandra resources. Due to the influence of environmental factors such as climate, soil, water quality, and atmosphere, and the difference in planting patterns, the quality of Schisandra in different regions varies significantly. The traditional view in the field of traditional Chinese medicine believes that the northern five flavors are superior to the southern Schisandra. The 2010 edition of the Pharmacopoeia also separates the southern and no...

Examples

Embodiment Construction

[0052] A total of 30 batches of Schisandra samples from Liaoning (10 batches), Heilongjiang (5 batches), Hubei (6 batches), Hunan (3 batches) and Guangxi (6 batches) were used for analysis and research. Finally, wash, dry, and dry to constant weight, then grind and sieve for later use.

[0053] (1) EA-IRMS, HPLC and ICP-MS were used to determine the δ in Schisandra samples 15 N, content of schisandrin A, schisandrin ester A, schisandrin A, schisandrin B, B, and Sr, the results are shown in Table 2. (2) 92 batches of samples were used as blind samples, and their measured values ​​were substituted into the established model formula to obtain corresponding discrimination results. The comparison of the discriminant results with the actual source is shown in Table 3. It can be seen from Table 3 that the discrimination accuracy rate of Schisandra chinensis in the five provinces is 100%, showing a good discrimination effect.

[0054] The measured values ​​of each index in the Schi...

technical field

[0001] The invention relates to a discrimination method, in particular to a method for identifying the origin of agricultural products, which is mainly applicable to the origin identification of schisandra chinensis. Background technique

[0002] As a multifunctional and multipurpose plant with both medicinal and edible uses, Schisandra chinensis is widely distributed in more than 20 provinces and autonomous regions in my country. Introduction and cultivation is the main method for the expansion and regeneration of Schisandra resources. Due to the influence of environmental factors such as climate, soil, water quality, and atmosphere, and the difference in planting patterns, the quality of Schisandra in different regions varies significantly. The traditional view in the field of traditional Chinese medicine believes that the northern five flavors are superior to the southern Schisandra. The 2010 edition of the Pharmacopoeia also separates the southern and no...

Examples

Embodiment Construction

[0052] A total of 30 batches of Schisandra samples from Liaoning (10 batches), Heilongjiang (5 batches), Hubei (6 batches), Hunan (3 batches) and Guangxi (6 batches) were used for analysis and research. Finally, wash, dry, and dry to constant weight, then grind and sieve for later use.

[0053] (1) EA-IRMS, HPLC and ICP-MS were used to determine the δ in Schisandra samples 15 N, content of schisandrin A, schisandrin ester A, schisandrin A, schisandrin B, B, and Sr, the results are shown in Table 2. (2) 92 batches of samples were used as blind samples, and their measured values ​​were substituted into the established model formula to obtain corresponding discrimination results. The comparison of the discriminant results with the actual source is shown in Table 3. It can be seen from Table 3 that the discrimination accuracy rate of Schisandra chinensis in the five provinces is 100%, showing a good discrimination effect.

[0054] The measured values ​​of each index in the Schi...

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