Method for rapidly distinguishing different varieties of rice based on aldehyde compounds

A technology of aldehyde compounds and rice, which is applied in the field of rice identification, can solve the problems of difficulty in finding and distinguishing differences between groups, unclear differences between groups, etc., and achieve the effect of simple distinction

Pending Publication Date: 2021-08-27
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the difference between groups is not clear, and when the difference within a group is large, it is difficult to find and distinguish the difference between groups by PCA analysis

Method used

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  • Method for rapidly distinguishing different varieties of rice based on aldehyde compounds
  • Method for rapidly distinguishing different varieties of rice based on aldehyde compounds
  • Method for rapidly distinguishing different varieties of rice based on aldehyde compounds

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A method based on fast distinguishing between aldehyde compounds, including the following steps:

[0042] 1) Collect rice in different regions, ZCSMs, ZCSMs, Xihu Xiangmei (XHXM), Fu Linmen Su Soft (FMSR), Guangming Chongming rice (GMCM), Shanglin Xiangmi (SLXM), Wannong Gong Mi (WNGM), classic Royal Gongmi (JDYG), Jinlong Fish Longxiang Mei (JYCX), Jinlong Fish Panjin Earth (JYPJ), Wucong Rice (WCYX), Jinlong Fish Hanfang Northeast Earth (JYHD), Sweet Water Xiangmi (TSXM), Xuelius (XLRS), Jinlongfish High-quality Northeast Earth (JYYD).

[0043] Every time you weigh 150G left and right rice, meters: water = 1: 1.2, cook with rice cooker. After cooking, stir evenly, take 5g of ripe rice on 20 ml of transparent top air jaws into spots. Then, 20 μl of 2-octanol was added, and the quality control was carried out, and then the top empty jaw cap is sealed with the Topylon silica gel. The nature of 2-octanol is stable, and does not react with the target and solvent, and the boiling...

Embodiment 2

[0050] A method based on fast distinguishing between aldehyde compounds, including the following steps:

[0051] 1) Collect rice, ZCSM, ZCSM, Xihu Xiangmi (XHXM), Xihu Sucan (FMSR), Blessing Mei (SLXM), Shanglin Mei (SLXM), Fulinmen Pearl Xiangmi (FMZZ), Classic Royal Gon (JDYG), Jinlong Fish Longxiang Mei (JYCX), Jinlong Fish Panjin Earth (JYPJ), Wuchang Raw Rice (WCYX), Jinlong Fish Hanfang Northeast Millet (JYD), Sweet Water Metal Millet (TSXM), Snow Drans (XLRS), Golden Dragonfish High Quality Northeast Earth (JYYD).

[0052] Every time you weigh 150G left and right rice, meters: water = 1: 1.2, cook with rice cooker. After cooking, stir evenly, take 5g of ripe rice on 20 ml of transparent top air jaws into spots. 20 μl of 18 mg / L of 2-octanol was added, and the quality control was carried out, and the top air jaw cap is sealed with the top of the Teflon silica gel. The nature of 2-octanol is stable, and does not react with the target and solvent, and the boiling point is lo...

Embodiment 3

[0060] A method based on fast distinguishing between aldehyde compounds, including the following steps:

[0061] 1) Collect rice in different regions, ZCSMs, ZCSMs, Xihu Xiangmei (XHXM), Fu Linmen Su Soft (FMSR), Guangming Chongming rice (GMCM), Shanglin Xiangmi (SLXM), Wannong Gong Mi (WNGM), classic Royal Gongmi (JDYG), Jinlong Fish Longxiang Mei (JYCX), Jinlong Fish Panjin Earth (JYPJ), Wucong Rice (WCYX), Jinlong Fish Hanfang Northeast Earth (JYHD), Sweet Water Xiangmi (TSXM), Jinlongfish Milk Emperor (JYRH), Jinlongfish High Quality Northeast End of Jiyd.

[0062] Every time you weigh 150G left and right rice, meters: water = 1: 1.2, cook with rice cooker. After cooking, stir evenly, take 5g of ripe rice on 20 ml of transparent top air jaws into spots. Then 20 μl of 17 mg / L 2-octanol was mass-controlled, and then the top air jaw bottle cover with Tofil silica gel. The nature of 2-octanol is stable, and does not react with the target and solvent, and the boiling point is low...

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Abstract

The invention discloses a method for rapidly distinguishing different varieties of rice based on aldehyde compounds, which is characterized by comprising the following steps: collecting aroma components of rice in different regions by adopting headspace solid-phase microextraction; collecting data in aroma components of rice by adopting a gas chromatograph-mass spectrometer, and screening aldehydes; the result of the volatility analysis being provided in chromatographic peak area counting; using orthogonal partial least squares discriminant analysis OPLS-DA modeling to compare rice differences in different regions. and determining the content of aldehyde substances such as hexanal, heptanal, 3-methyl-butyraldehyde, 5-methyl-hexanal, n-octanal, 2-heptenal, nonanal, trans-2-octenal, benzaldehyde, trans-2-nonenal, trans-2-decenal, lauric aldehyde, trans-2-undecenal and the like as a recognition standard. The method disclosed by the invention is small in data volume and high in distinction degree. The method can quickly and accurately identify the rice producing area, and is beneficial to further processing and utilizing rice and developing related products.

Description

Technical field [0001] The present invention relates to a method of identifying rice in different regions by analyzing rice aroma components (aldehyde compounds) to distinguish between rice in different regions, belonging to the field of rice identification technology. Background technique [0002] my country is a country with rice as a major food crop, different regions, due to differences in climate geographical conditions and varieties of rice, their taste is also the same. The rice in different regions also has its most suitable cooking. Among them, the niometers are brittle and frangible, the viscosity is low, and the cooking is more used to make rice noodles, and the soup, mix, mixed and other cooking methods are mainly. The glutinous rice is not easy to cook, and the porridge will vice, mainly for cooking. At present, the difference between rice, the evaluation standard is not uniform and complex. The distinctive method currently used is primarily analyzed and instrumental...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/06G01N30/72
CPCG01N30/02G01N30/06G01N30/72G01N2030/062
Inventor 周一鸣朱思怡陈翔宇周小理
Owner SHANGHAI INST OF TECH
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