Cutting method for tobacco leaf segmenting, threshing and redrying

Abstract

The invention discloses a cutting method for tobacco leaf section threshing redrying. According to the length of the tobacco leaves, a 0.618 golden section method is adopted for cutting the leaves into 11 to 20 sections from the leaf bases to the leaf tops, the leaves are respectively baked and crushed under the condition of 40 to 45 DEG C and are then sieved by a 60-mesh sieve to be made into samples, near infrared scanning is carried out under the wavelength condition being 4000 to 10000cm, and a near infrared map is obtained; the near infrared map data is subjected to second derivative solution, then, smoothing treatment is carried out, 4000 to 7600cm map regions are selected, and a principal component analysis-Mahalanobis distance (PCA-MD) method is adopted for clustering analysis; and the cutting dimensions of the section threshing redrying raw materials are finally determined according to the similarity degree of the near infrared map information of each section of samples through being combined with the production practice. The method has the characteristics that the operation is simple, objective, fast and accurate, and the like.

Description

technical field [0001] The invention belongs to the technical field of tobacco processing, and in particular relates to a method for cutting tobacco leaves during segmental threshing and redrying. Background technique [0002] At present, the whole leaf threshing and redrying process in the tobacco industry mostly adopts the whole leaf threshing and redrying process. The scale of high-end cigarette brands continues to grow, and the structural contradictions of raw materials become more prominent. Based on this, in order to broaden the range of raw material selection for high-end cigarette brands and meet their demand for high-end cigarette raw materials, some enterprises have proposed the processing concept of segmental threshing and redrying. Patent CN101077213A and patent CN101181093 respectively propose to divide tobacco leaves into leaf base section, leaf middle section and leaf tip section, and carry out segmental processing, but lack reasonable cutting basis and metho...

AI Technical Summary

Problems solved by technology

Patent CN101077213A and patent CN101181093 respectively propose to divide tobacco leaves into leaf base section, leaf middle section and leaf tip section, and carry out segmental processing, but lack reasonable cutting basis and method; patent CN102279246A proposes a tobacco leaf cutting judgment method, but this method only relies on conventional chemical composition indicators and sensory quality total score as the judging factors for tobacco leaf cutting, the basis is too single, and the sensory quality is often easily affected by human and environmental factors

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