基于质构仪的烟梗回透程度定量表征方法及其应用
Quantitative characterization method of tobacco stem re-permeability based on texture analyzer and its application
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摘要: 利用质构仪建立了烟梗回透程度定量表征方法,确定了最佳仪器测试参数,并用该方法检测了不同产地、不同规格及不同回潮参数烟梗样品的回透程度。结果表明:1)最佳测试参数中探头型号为HDP/BSK剪切型探头,探头测前、测试以及回程速度分别为5.0 mm/s、1.0 mm/s、5.0 mm/s,触发力为15 g,应变为170%;所测烟梗回透程度的日内和日间精密度分别为6.44%和4.26%,该定量表征方法精密度高、重复性好,可客观评价烟梗的回透程度。2)不同产地烟梗的回透程度存在一定的差异,河南三门峡烟梗回透程度最低,黔西南烟梗回透程度最高。3)烟梗回透程度随着烟梗长度和直径的增加呈降低趋势,随洗梗时间和洗梗水温的增加呈升高趋势,随贮梗时间的增加呈先升高后降低的趋势。4)产地、洗梗时间、水温、贮梗时间,以及产地与贮梗时间的交互作用均对烟梗的回透程度有极显著影响,产地与洗梗时间、水温的交互作用不显著。Abstract: A quantitative characterization method of tobacco stem re-permeability was established by texture analyzer, and the best instrument test parameters were determined. The method was used to characterize the degree of tobacco stem re-premeability under different regions, specifications and moisture regain parameters. The results showed that the best test parameters: the probe model was HDP/BSK shear type probe, the probe's pre-test, test and return speed was 5.0 mm/s, 1.0 mm/s, 5.0 mm/s, respectively trigger force was 15 g, and strain was 170%; the intra-day and inter-day precisions were 6.44% and 4.26%, indicating that this quantitative characterization method had high precision and good repeatability, which could objectively evaluate the degree of re-permeability of tobacco stem. There were some differences in the degree of re-permeability of tobacco stem in different regions. The degree of re-permeability of tobacco stem was lowest in Sanmenxia, He'nan, and highest in Qianxi'nan. The degree of re-permeability of tobacco stem decreased with the increase of the stem length and diameter, increased with the increase of stem washing time and water temperature, and increased first and then decreased with the increase of stem storage time. Place of origin, stem washing time, water temperature, stem storage time, and the interaction between place of origin and stem storage time had a very significant impact on the degree of tobacco stem re-permeability, but the interaction between place of origin and stem washing time and water temperature was not significant.
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Key words:
- tobacco stem /
- degree of re-permeability /
- texture analyzer /
- moisture regain parameters
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