Method for measuring cellulose of reconstituted tobacco by virtue of near infrared reflectance spectroscopy technique

Abstract

The invention discloses a method for measuring cellulose of a reconstituted tobacco by virtue of a near infrared reflectance spectroscopy technique. The method comprises the following steps: (1) collecting and preparing a representative sample; (2) collecting an original spectrum; (3) selecting a correcting sample set and a verifying sample set; (4) measuring a reference value of the sample; (5) carrying out pretreatment on spectrum; (6) establishing a PLC model; (7) verifying the model; and (8) measuring cellulose. The method disclosed by the invention is simple, feasible and fast. By adopting a near infrared spectrum nondestructive detection technology, not only can the analytical efficiency be enhanced and the cost be lowered, but the method also has obvious practicality for accurately measuring the cellulose of the reconstituted tobacco, improving the detection efficiency and objectively reflecting the product quality. The method disclosed by the invention has the advantages of high detection speed, no pollution, greenness and environmental protection, high accuracy, good repeatability and the like, and is suitable for on-site analysis and fast detection of the cellulose of a reconstituted tobacco product as well as online monitoring of fluctuation of product quality.

Description

technical field [0001] The invention relates to a method for measuring the cellulose of reconstituted tobacco leaves by a papermaking method by near-infrared diffuse reflectance spectroscopy, and belongs to the field of reconstituted tobacco leaves by a papermaking method. Background technique [0002] Cellulose is one of the important components of tobacco cell walls. The higher the content of cell wall substances, the worse the quality of tobacco leaves, especially the high content of cell wall substances such as cellulose in low-grade tobacco leaves, the smoke will produce strong irritation, coughing, astringent mouth, and burnt gas. Reconstituted tobacco leaves are made by using discarded tobacco stems, tobacco leaf fragments, and tobacco dust as raw materials through a series of processes. The cellulose content is also an important factor affecting the quality of reconstituted tobacco leaves. Tobacco leaf quality is of great significance. [0003] At present, the de...

AI Technical Summary

Problems solved by technology

After the near-infrared diffuse reflection light enters the sample, it undergoes countless reflections, refraction, diffraction, and absorption, and then returns to the incident surface. This kind of analytical light loads the structure and composition information of the sample, and is a fast and environmentally friendly method. Detection technology. At present, the application of near-infrared diffuse reflectance spectroscopy to determine the conventional chemical composition, style, and uniformity of tobacco has been reported, but the method for the determination of cellulose content in reconstituted tobacco leaves by papermaking has not been reported.

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