Carrageenan impurity and moisture content detecting method
A carrageenan and moisture technology, which can be used in measuring devices, analyzing materials, and analyzing materials by optical means, which can solve the problems of laborious, complicated operation, and time-consuming.
Active Publication Date: 2017-07-21
防城海关综合技术服务中心
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Problems solved by technology
The technical requirements and inspection methods of carrageenan are stipulated in GB 15044-2009 "Food Additive Carrageenan". The inspection methods specified in the standard are traditional conventional methods, which are cumbersome, time-consuming and laborious to operate.
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[0028] The embodiment of the present invention provides a carrageenan impurity and water content detection method, which adopts near-infrared spectrum analysis and detection. The specific detection method is:
[0029] Take several carrageenan samples and number each sample, and take two samples from each sample, one for routine chemical analysis, and the other for near-infrared spectroscopic analysis with a near-infrared spectrometer; the specific sampling method can be used The quartile method draws two copies from each sample.
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The invention discloses a carrageenan impurity and moisture content detecting method. The carrageenan impurity and moisture content detecting method adopts near infrared spectroscopic analysis detection. According to the carrageenan impurity and moisture content detecting method, an analysis library is established by combining a near-infrared spectroscopy with a spectrum preprocessing and model optimization method, and rapid and non-destructive green analysis of various parameter contents in carrageenan can be achieved. The carrageenan impurity and moisture content detecting method has the advantages of being rapid, nondestructive, convenient and friendly to environment.
Description
technical field [0001] The invention relates to the technical field of detection of impurities and moisture content, in particular to a method for detecting impurities and moisture content of carrageenan by using a near-infrared detector. Background technique [0002] Near infrared light (Near Infrared for short NIR) is an electromagnetic wave between visible light (Vis) and mid-infrared light (abbreviated as MIR or IR). Defined as 780-2526nm (wavenumber 12820-3959cm-1). Due to a series of unique advantages, the near-infrared spectroscopy method is being widely valued and promoted worldwide. Compared with other analytical techniques, it has the advantages of fast, simple, and non-destructive, and is widely used in the quality and safety testing of agricultural products and food. Near-infrared spectroscopy is an efficient and fast modern analysis technology developed in the 1970s. It mainly uses the overtone vibration or rotation of chemical bonds containing C-H, N-H, 0-H,...
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IPC IPC(8): G01N21/359
CPCG01N21/359
Inventor 陈廷伟
Owner 防城海关综合技术服务中心