Method for measuring hot water solvends of reconstituted tobacco by paper-making process by virtue of near infrared reflectance spectroscopy technique

Abstract

The invention discloses a method for measuring hot water solvends of a reconstituted tobacco by a paper-making process 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 the hot water solvends. 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 also the method has obvious practicality for accurately measuring the hot water solvends 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 hot water solvends as well as online monitoring of fluctuation of product quality.

Description

Technical field [0001] The invention relates to a method for measuring hot water soluble matter of reconstituted tobacco by papermaking method by near-infrared diffuse reflectance spectroscopy technology, and belongs to the field of reconstituted tobacco by papermaking method. Background technique [0002] Reconstituted tobacco is to use waste tobacco stems, tobacco leaf fragments, tobacco dust, etc. as raw materials, through extraction, concentration, separation, beating, refining, papermaking, drying, and flavoring processes to make natural tobacco flakes with excellent performance. Used as a cigarette filler and reused in cigarette production. The addition of reconstituted tobacco can not only reduce the cost of cigarettes, save raw materials, improve the filling capacity and combustibility of cigarettes, but also change the composition of the smoke. To a certain extent, the physical properties and chemical components of cigarettes can be obtained according to people's wishes ...

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, there have been reports on the application of near-infrared diffuse reflectance spectroscopy to determine the chemical composition, style, and uniformity of tobacco, but there has been no report on the method for the determination of hot water solubles in reconstituted tobacco leaves by papermaking.

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