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Solid-phase micro-extraction device and extraction method of fruit and vegetable flavor components

A technology of solid-phase micro-extraction head and extraction device, which is applied in measurement devices, ion exchange processing devices, material separation and other directions, can solve the problems of small headspace, inability to accurately reflect fruit aroma components, and large errors.

Inactive Publication Date: 2014-07-02
SHANDONG INST OF POMOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, using the extraction bottle with the GC-MS instrument, it was found that due to the small amount of sample in the bottle (about 8g) and small headspace space, the analysis results could not accurately reflect the aroma components of the fruit, especially pears, apples and other pome fruits, peaches, etc. There is a large error in the quantitative analysis of large fruits and vegetables such as stone fruits such as apricots, oranges, potatoes, and melons.

Method used

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  • Solid-phase micro-extraction device and extraction method of fruit and vegetable flavor components
  • Solid-phase micro-extraction device and extraction method of fruit and vegetable flavor components
  • Solid-phase micro-extraction device and extraction method of fruit and vegetable flavor components

Examples

Experimental program
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Effect test

Embodiment 1

[0015] Example 1: The extraction comparison test was carried out by the extraction device. The samples used were Apple Fuji varieties. 40g of the pulp was taken from different parts of the fruit, chopped and put into a dry and sterile jar with stopper 4 or a triangular flask , The sealing plug of the jar 4 is airtight tin foil, put the bottle body on the thermostatic heating magnetic stirrer 6, turn on the power, rotate the temperature setting knob 9 to set the heating temperature to 55℃, and let the sample be heated and magnetically stirred at the constant temperature After 30 minutes of extraction, the solid-phase micro-extraction head 3 is returned to the position and the sampling handle 2 is pulled out, and then the solid-phase micro-extraction head 3 is returned to the position and the sampling handle 2 is pulled out, and the GC-MS QP2010Plus (Shimadzu Corporation, Japan) ) Gas chromatography-mass spectrometer injection port sampling detection and analysis to obtain the tot...

Embodiment 2

[0019] Example 2: The sample used is Yangxin Yali. In the experiment, take multiple fruits to be beaten and homogenized, then measure 40ml of pear juice with a measuring cylinder and put it into a dry and sterile jar 4 or a triangular flask with a stopper. The sealing stopper of jar 4 is made of airtight tin foil. Put in the magnetic rotor, place the jar 4 on the thermostatic heating magnetic stirrer 6, rotate the temperature setting knob 9 to set the heating temperature to 55℃, and rotate the rotor speed setting knob 7 to set the rotor speed to 60 revolutions, and let the beating sample at a constant temperature Heat the magnetic stirrer 6 to stir and heat to equilibrate for 10 minutes, and then push down the solid phase microextraction head 3 to start extraction. After 35 minutes of extraction, the solid phase microextraction head 3 is returned to the position and the sampling handle 2 is pulled out, and the GC-MS QP2010Plus ( Japan Shimadzu Corporation) gas chromatography-ma...

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Abstract

The invention discloses a solid-phase micro-extraction device and extraction method of fruit and vegetable flavor components. The solid-phase micro-extraction device comprises an iron stand, a test tube clamp, a feed handle, a solid-phase micro-extraction head, a plugged jar and a constant temperature heating magnetic stirrer, wherein the right end of the test tube clamp is fixed at the upper part of the iron stand and the left end of the test tube clamp is fixed with the feed handle; the lower end of the feed handle is fixed with the solid-phase micro-extraction head which can move upwards and downwards; the plugged jar is arranged on the constant temperature heating magnetic stirrer. The solid-phase micro-extraction device has the characteristic of being reasonable in design, simple in structure and strong in operability and has the advantage of being low in extraction cost and good in analysis effect when the fruit and vegetable flavor is analyzed.

Description

technical field [0001] The invention relates to a device for extracting aroma components such as fruits and vegetables and a method for using the device. Background technique [0002] Aroma components are important factors affecting fresh and processed fruits, and their components, types and contents are one of the important components of fruit flavor quality, and are also important indicators for fruit quality evaluation. [0003] The aroma components of the fruit are often extracted and then combined with analytical instruments for analysis and detection. Solid Phase Micro-extraction (Solid Phase Micro-extraction, SPME) as a new non-solvent pretreatment method for fruit aroma analysis, its selective extraction characteristics overcome the traditional steam distillation, solvent extraction, supercritical fluid extraction It is easy to realize automation and easy to combine with high-efficiency separation and detection methods such as chromatography, electrophoresis, liquid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/08B01D15/08
Inventor 王淑贞王传增孙家正王超董飞王倩杨雪梅
Owner SHANDONG INST OF POMOLOGY