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Method of simultaneously measuring maltol contents in edible vegetable oil by gas chromatography

A technology of gas chromatography and edible vegetable oil, which is applied in the field of determination of vegetable oil components, can solve problems such as illegal addition, and achieve the effects of avoiding time-consuming, accurate methods, and protecting legitimate rights and interests

Active Publication Date: 2019-03-29
CHONGQING INST FOR FOOD & DRUG CONTROL
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Problems solved by technology

Firstly, artificially synthesized flavors were screened out by high performance liquid chromatography time-of-flight mass spectrometry, and the unspoken rule of illegally adding maltol flavors to edible vegetable oils, especially sesame oil and sesame blended oils, was discovered, and the conditions for pretreatment and purification of samples containing a large amount of oils and fats were solved , to solve the detection method of illegal addition in edible vegetable oil

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  • Method of simultaneously measuring maltol contents in edible vegetable oil by gas chromatography
  • Method of simultaneously measuring maltol contents in edible vegetable oil by gas chromatography
  • Method of simultaneously measuring maltol contents in edible vegetable oil by gas chromatography

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[0051] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0052] In order to investigate illegal incidents such as illegal addition and protect the health of consumers, a gas chromatography method was established to simultaneously determine the content of maltol and ethyl maltol in edible vegetable oil. The sample was subjected to 80% methanol, vortex shaken for 10 minutes, refrigerated and centrifuged, and maltol and ethyl maltol were simultaneously determined by gas chromatography. Results: The contents of maltol and ethyl maltol had a good linear relationship within the range of 0.5-30 μg / mL. The linear equations were Y=1.0833X-0.2058 and Y=1.3716X+0.0487 respectively. The reco...

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Abstract

The invention belongs to the technical field of vegetable oil composition measurement, and discloses a method of simultaneously measuring maltol contents in edible vegetable oil by gas chromatography.After a sample is spiral shaken with 80% methanol for 10 minutes and then frozen and centrifuged, maltol and ethyl maltol are measured simultaneously by gas chromatography. According to the result, the content of the maltol and the content of the ethyl maltol have a good linear relationship in a range of 0.5 to 30 mug / mL, and linear equations are: Y=1.0833X-0.2058, Y=1.3716X+0.0487, the maltol recovery rate measured in the method is 88.82%, RSD is 5.04%, and the ethyl maltol recovery rate is 86. 56% and RSD is 3.60%. The method disclosed in the invention can be used for detecting maltol and ethyl maltol illegal additives in the edible vegetable oil.

Description

technical field [0001] The invention belongs to the technical field of determination of vegetable oil components, in particular to a method for simultaneously determining the content of maltols in edible vegetable oil by gas chromatography. Background technique [0002] At present, the existing technologies commonly used in the industry are as follows: [0003] Spices for food are food additives that can produce, change or improve the flavor of food. The aroma of food is very important to the commercial value of food. A very small amount of edible flavors and fragrances can greatly improve the quality of food, reduce production costs, increase the color and aroma of food, and greatly improve the quality of life and taste of the people. Therefore, almost all processed foods are added with edible flavors. Although the amount of food flavor added is extremely small, some food flavors may accumulate in the human body after long-term ingestion of a small amount with food, resu...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/06
CPCG01N30/02G01N30/06
Inventor 江生汪敏潘正唐红杨小珊白亚敏
Owner CHONGQING INST FOR FOOD & DRUG CONTROL
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