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A molecular identification method for cashmere fabric

A molecular identification, cashmere technology, applied in the field of cashmere identification, to achieve the effect of good detection effect and high accuracy

Active Publication Date: 2020-03-17
嘉兴市食品药品与产品质量检验检测院 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the biggest difficulty at present is how to obtain high-quality DNA from cashmere

Method used

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  • A molecular identification method for cashmere fabric
  • A molecular identification method for cashmere fabric
  • A molecular identification method for cashmere fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0057] 1. Experimental equipment

[0058] 1.1 Cashmere samples

[0059] Table 1 Cashmere samples and their contents

[0060] Sample serial number sample type Specific ingredient weight percentage (%) 1 the fabric Cashmere 26.6 Wool 73.4 2 the fabric Cashmere 92.3 Wool 7.7 4 the fabric Cashmere 8.5 wool 90.7 other fibers 0.8 (clean dry) 5 the fabric Cashmere 7.5 wool 61.8 rabbit hair 30.7 (containing traces of other fibers) 7 the fabric Cashmere 7.3 Wool 92.7 (except connecting thread) 8 loose fiber Xinjiang cashmere 9 loose fiber Cashmere (natural color) 10 loose fiber Cashmere (natural color)

[0061] 1.2 Experimental materials

[0062] Table 2 Main reagents and manufacturers

[0063]

[0064]

[0065] Table 3 main instruments and equipment

[0066] equipment name Producer VS-1300 clean bench Suzhou Suxin Purification Equipment Factory Vertical pressure steam ste...

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Abstract

The invention discloses a molecule identification method for cashmere fabric. The molecule identification method comprises steps as follows: mtDNA (mitochondrial DNA) is extracted from the cashmere fabric; PCR (polymerase chain reaction) amplification of a cytB gene is performed; an amplification product is subjected to agarose gel electrophoresis, the result is observed, and if a dark strip occurs, the cashmere fabric is identified to contain cashmere. The cashmere fabric comprises pure cashmere fabric and non-pure cashmere fabric, and the non-pure cashmere fabric comprises fabric containing part of cashmere and fabric containing no cashmere. Preferably, a Biomega kit method is used for extracting mtDNA from the cashmere fabric. MtDNA is extracted from pure cashmere and cashmere fabric with different methods, PCR amplification is performed according to a designed specific primer of the cytB gene, then agarose gel electrophoresis is performed, and cashmere molecules can be identified quantitatively.

Description

technical field [0001] The invention relates to the field of cashmere identification methods, in particular to a molecular identification method for cashmere fabrics. Background technique [0002] my country is one of the countries that mainly produce cashmere (cashmere for short) in the world. The annual output accounts for more than 70% of the world's total output, ranking first in the world, and the quality of cashmere also ranks first in the world. Cashmere fiber is a high-grade raw material in the textile industry. It has the reputation of "soft gold", and the transaction price is based on grams. In recent years, people's living standards have generally improved, and they are more interested in high-quality cashmere products, and the demand for cashmere market is also greater. However, due to the high price of cashmere and the high additional profit, some unscrupulous traders shoddy it for profit, which led to serious adulteration in the market. For example, wool, rab...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12Q1/6888C12Q1/686
CPCC12Q1/686C12Q1/6888C12Q2565/125
Inventor 孙世元刘晓侠周宇东魏晓英尤忠毓王玉洁吴建中付春红张娜石刚
Owner 嘉兴市食品药品与产品质量检验检测院
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