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Solid-phase microextraction optimization method of fruit volatile components

A technology for volatile components and optimization methods, used in material separation, analytical materials, instruments, etc.

Pending Publication Date: 2021-06-08
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no effective method for extracting the volatile components of taro-flavored wax gourd well.

Method used

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  • Solid-phase microextraction optimization method of fruit volatile components
  • Solid-phase microextraction optimization method of fruit volatile components
  • Solid-phase microextraction optimization method of fruit volatile components

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Embodiment Construction

[0036] In order to make the object, technical solution and advantages of the present invention clearer, preferred embodiments are given below to further describe the present invention in detail. However, it should be noted that many of the details listed in the specification are only for readers to have a thorough understanding of one or more aspects of the present invention, and these aspects of the present invention can be implemented even without these specific details.

[0037] 1. Materials and methods

[0038] 1.1 Raw materials and equipment

[0039] In this example, the taro-flavored wax gourd fruit planted in Nanning, Guangxi is taken as the test material. Chemical reagents: n-hexane, Tianjin Fuyu Fine Chemical Co., Ltd.

[0040] 50 / 30μm DVB / CAR / PDMS extraction head, American Supleco Company; solid phase microextraction (solid phasemicro extraction, SPME) system includes handle, GHAJ-5190-4048 straight ultra-high inert liner, quartz capillary column HP-INNOWAX ( 60m×...

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Abstract

The invention discloses a solid-phase microextraction optimization method of fruit volatile components, which comprises the following steps: taking a mature fruit of a sample to be detected, juicing the pulp of the fruit to obtain fruit juice, filtering, taking the filtered juice by using a transfer pipette, putting the filtered juice into a sample bottle, adding sodium chloride and n-hexane as internal standards, and carrying out cryopreservation; magnetically heating, inserting the extraction needle into the sample bottle for adsorption, and taking out the extraction needle for later use; after the extraction needle after adsorption is completed is inserted into a sample inlet of a gas chromatography-mass spectrometry analyzer for desorption, starting the analyzer to collect volatile substance data; selecting a plurality of factors influencing extraction, performing multiple regression fitting analysis on the total peak area result of the volatile substances, and establishing a regression model; and taking the total peak area of the volatile substance as a target variable, and taking a dependent variable corresponding to the maximum response value as an optimal process value. The invention provides a method capable of effectively searching a fruit solid-phase micro-extraction process, so that extracted components are accurate and high in content.

Description

technical field [0001] The invention relates to the technical field of flavor extraction, in particular to a solid-phase microextraction optimization method for volatile components of fruits. Background technique [0002] Wax gourd (Benincasa hispida Cogn.) is an annual climbing herb belonging to Cucurbitaceae, and it is one of the main vegetables in summer and autumn. Winter melon is native to southern China, Southeast Asia, and India, and is distributed in tropical, subtropical, and temperate regions of Asia. Because of its wide adaptability, strong stress resistance, high and stable yield, etc., it has a wide range of cultivation and high economic value. Although there are many varieties of wax gourds, the fruit flavor of most wax gourd varieties is ordinary. In recent years, breeders have bred a new variety of wax gourd with aromatic characteristics - taro-flavored wax gourd, with green and beautiful skin and high nutritional value. Taro-flavored wax gourd is very dist...

Claims

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Application Information

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IPC IPC(8): G01N30/02G01N30/06G01N30/88
CPCG01N30/02G01N30/06G01N30/88G01N2030/025G01N2030/062G01N2030/8809
Inventor 于文进吕先绪钟川刘政国阳燕娟
Owner GUANGXI UNIV
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