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Discrimination method of Maotai-flavor liquor brewing process based on support vector machine

A sauce-flavored liquor and support vector machine technology, which is applied in manufacturing computing systems, computer components, character and pattern recognition, etc., can solve the problems of strong subjectivity of sensory evaluation, limited experience of evaluators, and long time spent , to achieve the effect of maintaining word of mouth and quality, low instrument price, and simple sample preparation

Active Publication Date: 2020-11-27
贵州国台酒业集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many merchants in the market who use non-authentic Daqu Maotai-flavored liquors such as Broken Sand Wine and Fansha Wine to pretend to be authentic Daqu Maotai-flavored Baijiu for profit, resulting in irregularities in the Maotai-flavored liquor market.
[0005] At present, in the Maotai-flavored liquor market, the process discrimination of unknown wine samples is mainly judged by sensory evaluation, but the sensory evaluation has strong subjectivity, vague and uncertain factors, and is limited by the experience of the appraiser
The prior art also uses gas chromatography (GC) to analyze the components of liquor, but this method mainly focuses on the research of the microscopic chemical components of liquor. The process of authentic Daqu Maotai-flavored wine (second-generation wine) requires a lot of time to find out the difference in the process. At the same time, the detection of unknown samples also takes an hour or two, and it takes a long time

Method used

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  • Discrimination method of Maotai-flavor liquor brewing process based on support vector machine
  • Discrimination method of Maotai-flavor liquor brewing process based on support vector machine
  • Discrimination method of Maotai-flavor liquor brewing process based on support vector machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] 1. Collect samples of Maotai liquor from different manufacturers in Maotai Town, Guizhou Province (30 authentic Daqu Maotai liquor, 37 non-authentic Daqu Maotai liquor), and collect infrared spectra. Instrument: Bruker Tensor 27 Fourier transform infrared spectrometer, ATR crystal is Ge, 17 reflections. Acquisition parameters: 4000-650cm -1 , resolution 8cm -1 , scan 32 times. The scanning background was absolute ethanol, and the washing solution was absolute ethanol.

[0051] Table 1 Sample Details

[0052]

[0053]

[0054] 2. Hotelling's T 2 After analysis, no abnormal sample points were found, and all data entered the next step of modeling.

[0055] 3. SVM model establishment

[0056] (1) Import the data into The Unscrambler 10.4, keep 650cm -1 and 4000-700cm -1 Spectral preprocessing, including the following processing (single or superimposed): no processing (RAW), smoothing (Smoothing), normalization (Normalize), first-order derivative (1st Derivativ...

Embodiment 2

[0071] 1. Collect 18 broken sand wines and 30 Kunsha wines from different manufacturers in Maotai Town, Guizhou Province, and collect infrared spectra. Instrument: Bruker Tensor 27 Fourier transform infrared spectrometer, ATR crystal is Ge, 17 reflections. Acquisition parameters: 4000-650cm -1 , resolution 8cm -1 , scan 32 times. The scanning background was absolute ethanol, and the washing solution was absolute ethanol.

[0072] 2. Hotelling's T 2 After analysis, no abnormal sample points were found, and all data entered the next step of modeling operation (the comparison step is only for data verification, not every experiment needs to eliminate samples).

[0073] 3. Spectral data processing

[0074] (1) Import the data into The Unscrambler 10.4, for 4000-700cm -1 Spectral preprocessing, including the following processing (individually or superimposed): no processing (RAW), smoothing (Smoothing), normalization (Normalize), first-order derivative (1stDerivative), second...

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Abstract

The invention discloses a discrimination method of a Maotai-flavor liquor brewing process based on a support vector machine in the technical field of liquor discrimination. The method comprises the following steps: performing infrared spectroscopic analysis on Maotai-flavor liquor, processing an infrared spectrogram set X according to the difference of the Maotai-flavor liquor in different brewingprocesses, establishing a clustering model through adoption of a support vector machine method, and processing unknown samples to obtain the brewing process of the Maotai-flavor liquor, wherein the model is a discrimination model of different brewing processes. According to the method, authentic Daqu Maotai-flavor liquor and non-authentic Daqu Maotai-flavor liquor can be distinguished, the distinguishing accuracy reaches 94% or above, distinguishing only needs 10 min, the time is short, the detection cost is low, and application and popularization are convenient.

Description

technical field [0001] The invention relates to the technical field of liquor discrimination, in particular to a method for discriminating the Maotai-flavor liquor brewing process based on a support vector machine. Background technique [0002] Maotai-flavored liquor, also known as Maoxiang-flavored liquor, is one of the main flavor types of liquor in my country. The style of the liquor presents the characteristics of "prominent sauce aroma, elegant and delicate, full-bodied, long aftertaste, and lasting fragrance in an empty cup". Maotai-flavored liquor is a typical representative of complex systems, with complex components, and the quality and price of liquor with different brewing processes vary greatly. Common Maotai-flavored liquor can be divided into Kunsha wine, broken sand wine, fansha wine and Chuansha wine. Kunsha wine, or "bundle wine", is a traditional sauce-flavored liquor craft, which is often called authentic Daqu sauce-flavored liquor. The local Hongyingzi ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/27G06Q50/04G06K9/62
CPCG06F30/27G06Q50/04G06F18/2411Y02P90/30
Inventor 卢君王凡唐平山其木格王丽毕荣宇孟天毅冯海燕梁青松李长文
Owner 贵州国台酒业集团股份有限公司
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