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Method for detecting rape honey aroma components by solid phase microextraction

A technology for aroma components and rape honey, which is applied in the detection field of honey aroma components

Active Publication Date: 2014-01-08
CHINA NAT INST OF STANDARDIZATION
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Problems solved by technology

[0005] Rapeseed honey is the largest and most stable honey species in my country, accounting for more than 40% of the total honey production throughout the year. Using the aroma components of rapeseed honey to establish "characteristic marks" can identify the source and adulteration of rapeseed honey. At present, there is no Related reports on the detection of aroma components in rapeseed honey by solid phase microextraction

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  • Method for detecting rape honey aroma components by solid phase microextraction
  • Method for detecting rape honey aroma components by solid phase microextraction
  • Method for detecting rape honey aroma components by solid phase microextraction

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Embodiment Construction

[0018] The preferred implementation of the present invention will be described in detail below, so that the advantages and features of the present invention can be more easily understood by those skilled in the art.

[0019] 1 Materials and methods

[0020] 1.1 Materials

[0021] Rapeseed Honey; Sodium Chloride (Analytical Pure) Sinopharm Chemical Reagent Co., Ltd.

[0022] 1.2 Main instruments

[0023] 15mL headspace vial, PTFE / silica gel septum, aluminum cap (Agilent); manual SPME injector, 2cm 50 / 30μm DVB / CAR / PDMS extraction head (Supelco, USA); 7890A-5975C GC-MS Gas chromatography-mass spectrometry (Agilent Technology Corporation, USA).

[0024] 1.3 Experimental method

[0025] 1.3.1 Sample pretreatment

[0026] Weigh 6mL honey sample, add 400mg sodium chloride, age the extraction head in the gas chromatography inlet for 2 hours, the aging temperature is 250°C, insert the aged extraction head into the headspace of the sample bottle, push out the fiber head,...

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Abstract

The invention relates to a method for detecting rape honey aroma components by solid phase microextraction, and the method comprises the following steps: weighing 6 mL of rape honey, adding 400 mg of sodium chloride, aging an extraction head at an introduction port of a gas chromatograph at an aging temperature of 250 DEG C for 2 hours, inserting the aged extraction head into a headspace part of a sample bottle, pushing a fiber head out, carrying out constant temperature magnetic stirring adsorption at 60 DEG C for 50 min, inserting the extraction head into a GC-MS introduction port, carrying out desorption at 250 DEG C for 5 min, and then carrying out gas chromatography-mass spectrometry. The method of the invention can rapidly detect aroma components in rape honey, and can identify whether the rape honey is adulterated by comparison with standard rape honey aroma substances.

Description

technical field [0001] The invention relates to a method for detecting aroma components of honey, in particular to a method for detecting aroma components of rapeseed honey by using solid-phase microextraction technology. Background technique [0002] Because honey has multiple health care functions, it is favored by consumers, and the market demand for honey is also increasing in recent years. Because single-flower honey is superior to mixed-flower honey in terms of quality and nutrition, it is favored by consumers. In order to obtain high profits, some unscrupulous traders use mixed-flower honey to pretend to be single-flower honey or use low-priced single-flower honey to pretend to be high-priced single-flower honey, or directly Adding extraneous sweet substances such as molasses to unifloral nectars. The honey adulteration incident has been exposed by the media many times, but the honey adulteration phenomenon has never stopped. This is a problem that all relevant manag...

Claims

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Application Information

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IPC IPC(8): G01N30/88G01N30/06
Inventor 史波林裴高璞赵镭刘宁晶汪厚银支瑞聪张璐璐解楠
Owner CHINA NAT INST OF STANDARDIZATION
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