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Fourier transform infrared spectroscopy technology-based method for detecting camellia oleosa seed oil

A technology of Fourier transform and camellia seed oil is applied in the field of oil quality detection, which can solve the problems of long detection time, high cost and complicated operation, and achieve the effects of rapid detection, simple method and easy operation.

Inactive Publication Date: 2015-11-25
GUANGDONG GRAIN SCI INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the most common method is to use gas chromatography to determine the fatty acid composition of vegetable oil as the main basis for vegetable oil identification. However, this method has high costs, long detection time, cumbersome operation, high requirements for experimenters, and it is difficult to quickly identify vegetable oils. identify

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  • Fourier transform infrared spectroscopy technology-based method for detecting camellia oleosa seed oil
  • Fourier transform infrared spectroscopy technology-based method for detecting camellia oleosa seed oil
  • Fourier transform infrared spectroscopy technology-based method for detecting camellia oleosa seed oil

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Embodiment 1

[0032] A method for detecting Camellia oleifera seed oil based on Fourier transform infrared spectroscopy, comprising the following steps:

[0033] Step 1, Sample Preparation,

[0034] Take 6 soybean oil samples with different sources as qualitative control samples with soybean oil as the control sample, take 6 peanut oil samples with different sources as qualitative control samples with peanut oil as the control samples, and take 6 corn oil samples with different sources as the qualitative control samples. Take corn oil as the qualitative control sample of the control sample, take 6 palm oil samples with different sources as the qualitative control sample with palm oil as the control sample, take 6 camellia seed oil samples with different sources as the control sample with camellia seed oil There are 5 qualitative control samples in total.

[0035] Take the unknown oil sample obtained by sampling as the sample to be tested.

[0036] Step 2, using Fourier transform infrared ...

Embodiment 2

[0044] The difference between the Camellia oleifera seed oil quantitative analysis model of the present embodiment and Example 1 is:

[0045] Step 7, analyze the infrared spectrum data of the quantitative control sample obtained in step 6 in Example 1, and take the peak area of ​​the unsaturated hydrocarbon (=CH) stretching vibration peak in each camellia seed oil quantitative control sample as the ordinate, each The mass content (%) of the corn oil mixed in the quantitative control sample of Camellia oleifera seed oil is taken as the abscissa as the standard curve, and the peak area- Camellia oleifera seed oil quantitative analysis model is established, see Figure 7 .

[0046] Step 8: Substitute the peak area of ​​2.025 of the unsaturated hydrocarbon (=CH) stretching vibration peak of the sample to be tested into Figure 7 According to the standard curve equation in the test sample, the mass content of non-Camellia oleifera seed oil, that is, the adulteration amount of Came...

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Abstract

The invention provides a Fourier transform infrared spectroscopy technology-based method for detecting camellia oleosa seed oil. The method comprises the following steps: 1, obtaining camellia oleosa seed oil and four kinds of other vegetable oil as qualitative contrast samples I, and obtaining an unknown oil sample as a to-be-measured sample; 2, scanning within a spectrum wave range of 4000-650 / cm to obtain infrared spectroscopy data of the qualitative contrast samples I and the to-be-measured sample; 3, building a qualitative analysis model I for the camellia oleosa seed oil; 4, judging whether the camellia oleosa seed oil exists in the to-be-measured sample; 5, when the camellia oleosa seed oil exists in the to-be-measured sample, preparing mixed plant oil adulteration oil and the camellia oleosa seed oil according to different mass ratios as qualitative contrast samples II; 6, performing infrared scanning to obtain infrared spectroscopy data of the qualitative contrast samples II; 7, building a qualitative analysis model II for the camellia oleosa seed oil; and 8, calculating the mass content of the camellia oleosa seed oil in the to-be-measured sample. By using the method, the camellia oleosa seed oil can be measured in a qualitative and quantitative manner; the method has the advantages of being easy and convenient to operate, fast to detect and high in accuracy.

Description

technical field [0001] The invention belongs to the field of oil quality detection, and in particular relates to a method for quickly identifying Camellia oleifera seed oil and determining the purity of Camellia oleifera seed oil based on Fourier transform infrared spectroscopy technology. Background technique [0002] Camellia oleifera seed oil is a pure natural high-grade edible vegetable oil extracted from the mature seeds of Camellia oleifera, a unique oil tree species in China. It is one of the four major woody vegetable oils in the world. Camellia seed oil is rich in nutrients such as oleic acid and linoleic acid, and its unsaturated fatty acid content is as high as 90%. It has the reputation of "Oriental Olive Oil". In the traditional Chinese diet, camellia seed oil has a long history. Since the Han Dynasty, people have recognized its special effects: hair care and beauty, detoxification, clearing heat and dampness, and prolonging life. It is the best for pregnant wom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/3577
Inventor 朱启思刘光亚钟国才朱丽琼邓常继曾彩虹关则恳江华邦老明斐吴秋婷
Owner GUANGDONG GRAIN SCI INST
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