A method for identification of yellow rice wine residues in ancient wine-bodied porous ceramic materials

Abstract

The invention discloses a method for extracting a porous ceramic material residue of an ancient wine body. Lactic acid and acetic acid are adopted as main calibration objects of yellow rice wine, the adopted simulated sample is a cup formed by kneading coarse slurry or fine mud and the simulated sample is soaked into different wines for over half a year without firing. The method comprises the steps of firstly extracting the residue in a simulated sample according to an organic acid extraction method and conditions provided in the literature; carrying out qualitative analysis on the extracted sample; and determining whether the ideal calibration object-lactic acid for people is obtained or not. The extraction method is reliable and effective. After the effective extraction method is searched, the extraction method is optimized by adopting a response surface method and the simulated sample is extracted under the conditions of different extracting agents, temperatures and time to complete a series of experiments; then malic acid is added as an internal standard substance to qualitative and quantitative treatment through the peak area ratio of the lactic acid and the malic acid obtained through liquid chromatography detection; and data are finally processed through software Design Expert to obtain the optimum extraction conditions.

Description

technical field [0001] The present invention relates to a method for identification of ancient rice wine residues, in particular to provide a method for identifying rice wine based on organic acids in porous ceramic materials extracted by a rapid solvent extraction method, which is suitable for analyzing ancient wine vessel residues and identifying rice wine . Background technique [0002] Wine is closely related to human life. The origin, development and trade of wine reflect rich information on politics, economy, technology and other aspects of ancient society. Therefore, people often regard wine culture as an important part of ancient civilization. However, except for the bronze ware that has been confirmed as a wine vessel by document records, there is no direct evidence to prove that it is indeed a wine vessel for other containers—especially pottery in the Neolithic Age. Here comes the difficulty, and there are different views on it. [0003] Relevant studies abroad h...

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Problems solved by technology

[0004] However, few studies have specifically explored a complete method for extracting and analyzing residues in the porous ceramic materials of ancient wine bodies, and few studies have devoted themselves to specifically identifying the three major ancient wine bodies (wine, yellow rice wine, rice wine

This may be due to the following reasons: 1. The composition and texture of ceramic materials are different, resulting in different absorption and residual degrees of residues. At the same time, due to the unknown nature of archaeological samples, it is difficult for us to know whether any residues are absorbed and what kind The residues are absorbed, which makes the selection of calibration objects difficult; 2. The archaeological samples have gone through thousands of years, and the humidity, temperature and microbial corrosion of the environment will affect the analysis of the residues; 3. The residue content in the archaeological samples Relatively small, which has a certain accuracy requirement for the detection of residues

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