Method for rapidly measuring content of cellulose in sargassum horneri with near-infrared spectroscopy technology

Abstract

A method for rapidly measuring content of cellulose in sargassum horneri with a near-infrared spectroscopy technology comprises steps as follows: S1, acquisition and pretreatment of a sargassum horneri sample; S2, measurement of the content of cellulose in the sargassum horneri sample with an improved sulfuric acid and potassium dichromate oxidation method; S3, acquisition of near-infrared spectrum of the sargassum horneri sample through scanning by a near-infrared spectrometer; S4, establishment and evaluation of a near-infrared spectrum quantitative analysis model; S5, application of the near-infrared spectrum quantitative analysis model. The method has the advantages of being rapid, accurate and environmentally friendly, is favorable for improving the quality control level of the content of the cellulose in sargassum horneri and can be popularized and applied to quality control of other seaweed biomass.

Description

technical field [0001] The invention belongs to the field of cellulose content analysis, and in particular relates to a method for rapidly determining the cellulose content of copper algae based on near-infrared spectroscopy. Background technique [0002] Marine biomass resources represented by macroalgae have the advantage of not occupying land and freshwater resources, and have great development potential. Copper algae (Sargassum horneri (Turn.) Ag. commonly known as "Lilac House", belonging to the genus Sargassum (Sargassum), distributed in the coastal shallow sea area of ​​China), hijiki and asparagus and other large seaweed plants are tall, with luxuriant branches and leaves. Known as the "sea forest", it is an ideal place for marine organisms to avoid enemies, feed, and lay eggs, and it is easy to scale artificial cultivation and environmental restoration (absorb nitrogen, phosphorus and heavy metals in the environment, release oxygen, adjust the pH of the water body, ...

AI Technical Summary

Problems solved by technology

If the above-mentioned national standard is used to measure the cellulose content, not only the measurement takes up to 2 to 3 days, but also because the measurement object of the national standard method embodiment is ramie and wood, it is not necessarily applicable to the determination of seaweed cellulose. In the actual measurement process It is also found that the measurement results of seaweed cellulose content obtained by this method have a large error

Other available methods include Van Soest and its improved method and chromatographic method, wherein, Van Soest and its improved method can simultaneously measure the contents of cellulose content, moisture, hemicellulose, lignin and ash, but the determination steps are cumbersome and time-consuming. If gas chromatography, high performance liquid chromatography and other chromatographic methods are used, although the measurement results are relatively accurate, there are disadvantages of high cost and long time consumption

[0005] It can be seen that the traditional methods for quantitative analysis of cellulose content in seaweed generally have the disadvantages of cumbersome determination steps and long time consumption, and the chromatography method has the disadvantage of high testing cost, which limits the promotion and application of these methods in the actual production process

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