Method for analyzing volatile components in rice

By combining fiber head aging, headspace extraction, and thermal desorption with GC-MS analysis of volatile components in rice, the problem of complex processes and limited detection range in existing technologies has been solved, achieving a simple, rapid, green and environmentally friendly analysis of multiple volatile components.

CN121364264APending Publication Date: 2026-01-20JIANGXI LIDU WINE CO LTD +1
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Patent Information

Application Number
CN202511485216.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-17
Publication Date
2026-01-20

AI Technical Summary

Technical Problem

Existing methods for analyzing volatile components in rice are complex, costly, and have limited detection range, making them unsuitable for detecting a wide variety of volatile components.

Method used

A method combining fiber head aging, headspace extraction, and thermal desorption was adopted, along with GC-MS analysis of volatile components in rice. This simplified the operation process and used headspace solid-phase microextraction technology to avoid the use of organic solvents.

Benefits of technology

It enables simple, rapid, and accurate analysis of various volatile components in rice, reducing operational complexity and cost, and is suitable for large-scale sample screening, while being environmentally friendly.

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Abstract

The invention relates to the technical field of food analytical chemistry, and particularly discloses a method for analyzing volatile components in rice, which comprises the following steps: S1, aging a fiber head: aging a solid phase microextraction fiber head at a gas chromatography sample inlet at 270 DEG C for 30 minutes; s2, sample preparation: weighing 3g of a rice sample, putting the rice sample into a headspace sample injection bottle, adding 6mL of water, and sealing the headspace sample injection bottle; s3, headspace balancing: stirring and balancing the sealed sample injection bottle at the temperature of 80 DEG C at the speed of 250 rpm; s4, headspace extraction: placing the aged fiber head at a position 3 cm above the headspace of the sample, and carrying out adsorption extraction for 30 minutes; s5, thermal desorption: inserting the extracted fiber head into a GC-MS (Gas Chromatography-Mass Spectrometer) sample inlet, and desorbing for 6 minutes at 230 DEG C; and S6, performing chromatographic analysis on the desorbed sample. The method is simple, convenient and rapid to operate, capable of completing large-scale detection in a short time and wide in application range.
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Citation Information

Patent Citations

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