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A rapid detection method for tea quality based on characteristic aroma

A technology of characteristic aroma and detection method, which is applied to measurement devices, material analysis by electromagnetic means, instruments, etc., can solve problems such as poor results, avoid human factor interference, simplify detection steps, and achieve objective and accurate results.

Inactive Publication Date: 2016-05-25
HENAN AGRICULTURAL UNIVERSITY
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Problems solved by technology

However, the above two evaluation methods for tea quality have certain limitations, and the effect is not good.

Method used

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  • A rapid detection method for tea quality based on characteristic aroma

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Embodiment Construction

[0026] Such as figure 1 As shown, the tea quality rapid detection device based on characteristic aroma of the present invention includes a sampling chamber and a reaction chamber of a gas sensing device. The sampling chamber and the reaction chamber of a gas sensing device are connected by an air pump. The sampling chamber, the air pump is a micro air pump detachably connected with the sampling chamber. A gas sensor device is installed in the reaction chamber of the gas sensor device. The gas sensor device is a gas sensor array composed of a plurality of different cross-sensitive metal oxide gas sensors connected in parallel. The signal of the gas sensor device The output end is connected to the signal input end of the signal acquisition module, and the signal output end of the signal acquisition module is connected to the computer.

[0027] In this embodiment, the gas sensing device is a gas sensor array composed of four different cross-sensitive metal oxide gas sensors conn...

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Abstract

The invention discloses a tea quality rapid detection device and detection method based on characteristic aroma, which can quickly and accurately perform quantitative and qualitative analysis on tea quality by analyzing and processing characteristic information of tea aroma. In the present invention, the gas sensor array is used to analyze the odor accumulation gas of the tea sample sent into the reaction chamber of the gas sensor device, and the computer is compared with the data in the database to output the quality grade information of the tested sample or the tested sample according to the needs of the user. The characteristic aroma content information of the test sample can be analyzed and processed by the characteristic information of the tea aroma, and the tea quality can be quickly and accurately analyzed quantitatively and qualitatively, which greatly simplifies the detection steps and does not require pretreatment of the sample to be tested. The interference of human factors caused by sensory evaluation makes the determination results more objective and accurate, and provides a new type of non-destructive testing device and testing method for tea quality testing.

Description

technical field [0001] The invention relates to a tea quality detection device and detection method, in particular to a tea quality rapid detection device and detection method based on characteristic aroma. Background technique [0002] Tea aroma is composed of a wide variety of low-content volatile substances. Although the content of volatile substances only accounts for 0.02% of the dry weight of tea, they play an important role in the formation of tea aroma. The aroma of tea is an important factor determining the quality and flavor of tea. Since the 1950s, researchers at home and abroad have carried out a lot of research work on tea aroma. At present, many researchers try to study the quality of tea by extracting the overall characteristic information of tea aroma. However, due to the influence of many factors such as tea tree varieties, climatic conditions, and processing processes, even tea of ​​the same variety will have different aromas. How to correctly identify tea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/62G01N27/00
Inventor 张红梅王玲余泳昌何玉静张义俊田辉
Owner HENAN AGRICULTURAL UNIVERSITY
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