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Detection method of trace solvent residues in xanthan gum

A detection method, xanthan gum technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problem of no solvent alcohol content detection method, etc.

Active Publication Date: 2017-03-22
ORDOS ZHONGXUAN BIOCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most domestic food-grade xanthan gum manufacturers use edible alcohol as a solvent for extraction, and there is a certain amount of alcohol in the final product. However, the European Union and the United States have strict requirements on the alcohol content in food and food additives. A detection method specifically for trace residual solvent alcohol content in xanthan gum

Method used

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Embodiment Construction

[0019] The following are preferred embodiments of the present invention, which do not limit the protection scope of the present invention.

[0020] The detection method of xanthan gum trace solvent residue is characterized in that described detection method step is as follows:

[0021] (1) prepare the standard solution of n-propanol: prepare the n-propanol standard solution that concentration is 1mg / ml with chromatographically pure anhydrous n-propanol and twice distilled water, standby;

[0022] (2) prepare the standard solution of ethanol: prepare the ethanol standard solution that concentration is 1mg / ml with chromatographically pure absolute ethanol and twice distilled water, standby;

[0023] (3) Prepare mixed standard solution: Utilize the normal propanol standard solution of 1mg / ml and the ethanol standard solution of 1mg / ml and twice distilled water to prepare the concentration to be the mixed standard solution of ethanol 0.04mg / ml and n-propanol 0.04mg / ml, spare;

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Abstract

A disclosed detection method for residual quantity of a xanthan gum microscale solvent comprises the following main steps: (1) preparing a standard solution of n-propanol; (2) preparing a standard solution of ethanol; (3) preparing a mixed standard solution; (4) preparing a sample solution; (5) utilizing gas chromatograph for detection and recording the chromatogram; and (6) calculating the residual ethanol content in the xanthan gum sample. The method for detecting alcohol in xanthan gum is designed through a large amount of experiments and research based on the different characteristics of xanthan gum compared with other food and food additives. The method is simple, practicable and high in accuracy, is capable of the content of a microscale solvent with the detection limit of 1 ppm, and is extremely suitable for detection by xanthan gum production manufacturers and xanthan gum user laboratories, thereby enabling the food-grade xanthan gum to reach domestic and international food safety requirements during usage.

Description

technical field [0001] The invention relates to a detection method for trace solvent residues of xanthan gum, and belongs to the field of detection methods for solvent residues of xanthan gum. Background technique [0002] As a non-toxic and harmless colloid, xanthan gum is currently the bio-glue with the best performance in the world that integrates thickening, suspension, emulsification and stabilization. It is widely used in food and chemical industry. At present, most domestic food-grade xanthan gum manufacturers use edible alcohol as a solvent for extraction, and there is a certain amount of alcohol in the final product. However, the European Union and the United States have strict requirements on the alcohol content in food and food additives. This method is specially designed for the detection of trace residual solvent alcohol content in xanthan gum. According to the different characteristics of xanthan gum and other foods and food additives, through a large number ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/02G01N30/06
Inventor 托建刚董金儒
Owner ORDOS ZHONGXUAN BIOCHEM