Method of identifying producing area of white granulated sugar

A technology of white granulated sugar and source, which is applied in the field of identification of white granulated sugar source and origin, can solve the problems of identification and difficult detection methods

Active Publication Date: 2019-11-22
广东省科学院生物与医学工程研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The main component of white sugar is sucrose molecules with a purity greater than 99.6%. The physical and chemical properties of white sugar from different origins are very similar, so it is difficult to distinguish them by existing detection methods

Method used

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  • Method of identifying producing area of white granulated sugar
  • Method of identifying producing area of white granulated sugar
  • Method of identifying producing area of white granulated sugar

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Embodiment Construction

[0035] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the examples, which are not intended to limit the present invention.

[0036] A method for identifying the place of origin of a sucrose source, comprising the following steps:

[0037] 1. Preparation of standard stock solution

[0038] Accurately weigh 10.00mg of white granulated sugar standard substance, dissolve them in 10mL volumetric flasks with ultrapure water and adjust the volume to 10mL, prepare a single standard stock solution of 1000mg / L; and store in a refrigerator at 4°C.

[0039] Take the above-mentioned stock solution and dilute it step by step with ultrapure water to prepare a standard series solution with a specific concentration, store it in a refrigerator at 4°C, and use it for testing.

[0040] 2. Sample pretreatment

[0041] Accurately weigh 0.1g of white granulated sugar sample into a 50mL centrifuge tube,...

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Abstract

The invention relates to a method of identifying the producing area of white granulated sugar. The invention discloses a method of detecting the producing area of white granulated sugar by applying anultra-high performance liquid chromatography-ion mobility-triple quadrupole mass spectrometry tandem time-of-flight mass spectrometry technology. The ratios of molecular fragment peaks M / Z = 341.108and M / Z = 342.111 and the ratios of molecular fragment peaks M / Z = 179.057 and M / Z = 180.057 are used for the first time as characteristic indications of sucrose molecular isotopes in white granulatedsugar. The method is efficient, accurate, strong in selectivity and high in sensitivity, can meet the requirement of high-throughput detection, and can provide data and technical support for a fingerprint spectrum library of sugar.

Description

technical field [0001] The invention relates to the field of analysis and detection of white granulated sugar, in particular to a method for identifying the origin and origin of white granulated sugar. Background technique [0002] According to statistics, the national consumption of white granulated sugar reached 15 million tons in 2018, but the cumulative sugar production was 10.3141 million tons, an increase of 1.0222 million tons compared with the previous sugar refining period, an increase of 11% year-on-year. With population growth and improvement of living standards, domestic sugar consumption will continue to grow, and will continue to increase on the basis of a gap of 4 million tons between production and demand in the future. Due to the large difference between imported sugar prices and domestic sugar prices, there is a risk of smuggled sugar impacting domestic sugar prices. Therefore, the industry has an urgent need for identifying the origin of sugar. [0003] T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/06G01N30/14G01N30/72G01N30/34
CPCG01N30/02G01N30/06G01N30/14G01N30/72G01N30/34G01N2030/027G01N2030/146
Inventor 李硕聪余构彬高裕锋王桂华郭剑雄甄振鹏黄敏兴庞扬海王小鹏余希文许卓妍刘蓉
Owner 广东省科学院生物与医学工程研究所
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