Genuine-fake identification method of west lake dragon well tea with geographical sign
A geographical indication, authenticity technology, applied in the preparation of test samples, measuring devices, instruments, etc., can solve the problems of indistinguishable form, taste, aroma, and high price, and achieve the standard use, promote development, and strengthen protection. Effect
Inactive Publication Date: 2010-08-11
TEA RES INST CHINESE ACAD OF AGRI SCI
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, at present, West Lake Longjing is very seriously affected by counterfeit and shoddy products. Due to the high quality and high price of West Lake Longjing, in the tea market in various places, it is a phenomenon that tea produced outside the origin of West Lake Longjing is used to pretend to be West Lake Longjing. very common
But for now, it is difficult to distinguish West Lake Longjing tea from other flat teas made with Longjing tea processing techniques in other areas in terms of shape, taste, aroma, etc.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
Embodiment 2
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The present invention provides a method for discriminating West Lake Dragon Well tea protected by geographic identification, which incorporates near infrared technique and chemometrics (PLS method) and provides a reliable method for discriminating West Lake Dragon Well tea in the market. The method comprises: crushing and sieving tea samples, and collecting the data on an IFS 28 / N near infrared spectrograph at a room temperature controlled within 20-25 DEG C; establishing the dependent variable 'Y' and independent variable 'X' of genuine and fake samples of West Lake Dragon Well tea; choosingthe samples randomly as a training set; utilizing a cross validation method and the original light spectrum to establish an evaluation model for West Lake Dragon Well tea with PLS method, and then making a judgment with '0' as the median value. The present invention establishes a reliable method for discriminating West Lake Dragon Well tea, overcomes the challenge of discriminating West Lake Dragon Well tea in the market, and is helpful for enhancing protection of West Lake Dragon Well tea, regulating the use of geographic identification of West Lake Dragon Well tea in the market, and promoting the development of West Lake Dragon Well tea.
Description
technical field The invention belongs to an identification method of West Lake Longjing, and mainly relates to authenticity identification of West Lake Longjing protected by geographical indications, and specifically uses near-infrared combined with partial least squares (PLS) analysis technology to identify the authenticity of West Lake Longjing. Background technique With the establishment of TRIPS on January 1, 1995, the protection of geographical indications has attracted the attention of various countries. With the development of the economy and the development of the market, the correct use and protection of geographical indications is becoming more and more important. But on the other hand, many enterprises have greatly reduced the competitiveness of their agricultural products in the international market due to ignoring the use of geographical indications. Therefore, how to protect geographical indications from abuse and counterfeiting has attracted the attention of ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/35G01N1/28G01N21/3563G01N21/359
Inventor 成浩周健王丽鸳刘栩
Owner TEA RES INST CHINESE ACAD OF AGRI SCI