A Preliminary Study on the near Infrared Spectral Characteristics of Purchased Flue-Cured Tobacco

Abstract:

In order to explore the application of near-infrared spectrum technology in the grading of purchased flue-cured tobacco, positive group of flue-cured tobacco with different grades was gathered; the near-infrared spectral data across different grades, in the same grade, and different test zones of the same tobacco leaf were determined and acquired to analyze their near-infrared spectral characteristics and their representativeness. The findings indicated that the positive group of flue-cured tobacco was highly homogeneous; there was identical near-infrared spectral characteristics in any zone of the same tobacco leaf; the peaks and troughs of wave length of the near-infrared spectral characteristics of different samples with identical grade were also consistent, with extremely insignificant difference in reflectivity; the near-infrared spectral difference between the tobacco leaves with different grades was much more significant than that in different test zones of the same tobacco leaf. It was highly probable to take the reflectance ratio of the peaks and troughs of wave length as the standard for grade classification. It is feasible to appraise the quality of purchased flue-cured tobacco using near-infrared spectral data.

• Periodical: Advanced Materials Research (Volumes 396-398)
• Pages: 2027-2032
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.396-398.2027
• Online since: November 2011
• Authors: Ying Zhang, Li Yuan He
• Keywords: Flue-Cured Tobacco Leaf, Grade, Near-Infrared Spectral, Purchased Quality

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