烟草科技
煙草科技
연초과기
TOBACCO SCIENCE & TECHNOLOGY
2014年
12期
36-42
,共7页
胡建军%李广才%李耀光%冯晓民%周冀衡%柳昕
鬍建軍%李廣纔%李耀光%馮曉民%週冀衡%柳昕
호건군%리엄재%리요광%풍효민%주기형%류흔
烤烟%常规化学成分%评吸质量%广义可加模型%非线性关系
烤煙%常規化學成分%評吸質量%廣義可加模型%非線性關繫
고연%상규화학성분%평흡질량%엄의가가모형%비선성관계
Flue-cured tobacco%Routine chemical component%Sensory quality%Generalized additive model%Nonlinear relationship
为分析烟叶化学成分与感官评吸质量之间的关系，建立了基于广义可加模型的非线性关系识别方法，并以国内主产烟区烤烟中部烟叶（8~12叶位）497个样本为研究对象，研究了烤烟烟叶总氮、烟碱、总糖和还原糖4种常规化学成分含量与感官评价指标间的线性与非线性关系。结果表明：①在样品烟叶化学成分的分布范围内和5%显著水平下，总氮与香气质、香气量、杂气、刺激性和余味呈显著线性负相关，烟碱与香气量、余味分别呈显著线性正相关和负相关，总糖、还原糖与香气质、香气量、杂气、刺激性和余味均呈显著线性正相关；②总氮与香气质、杂气、刺激性和余味之间，烟碱、总糖、还原糖与香气质、香气量、杂气、刺激性和余味之间均存在显著的非线性关系，且均表现为明显的“∩”型曲线关系，而总氮与香气量的非线性关系在5%显著水平下不显著；③烤烟烟叶总氮、烟碱、总糖和还原糖含量的适宜区间分别为1.5%~2.8%，2.0%~3.5%，15%~28%和15%~25%。
為分析煙葉化學成分與感官評吸質量之間的關繫，建立瞭基于廣義可加模型的非線性關繫識彆方法，併以國內主產煙區烤煙中部煙葉（8~12葉位）497箇樣本為研究對象，研究瞭烤煙煙葉總氮、煙堿、總糖和還原糖4種常規化學成分含量與感官評價指標間的線性與非線性關繫。結果錶明：①在樣品煙葉化學成分的分佈範圍內和5%顯著水平下，總氮與香氣質、香氣量、雜氣、刺激性和餘味呈顯著線性負相關，煙堿與香氣量、餘味分彆呈顯著線性正相關和負相關，總糖、還原糖與香氣質、香氣量、雜氣、刺激性和餘味均呈顯著線性正相關；②總氮與香氣質、雜氣、刺激性和餘味之間，煙堿、總糖、還原糖與香氣質、香氣量、雜氣、刺激性和餘味之間均存在顯著的非線性關繫，且均錶現為明顯的“∩”型麯線關繫，而總氮與香氣量的非線性關繫在5%顯著水平下不顯著；③烤煙煙葉總氮、煙堿、總糖和還原糖含量的適宜區間分彆為1.5%~2.8%，2.0%~3.5%，15%~28%和15%~25%。
위분석연협화학성분여감관평흡질량지간적관계，건립료기우엄의가가모형적비선성관계식별방법，병이국내주산연구고연중부연협（8~12협위）497개양본위연구대상，연구료고연연협총담、연감、총당화환원당4충상규화학성분함량여감관평개지표간적선성여비선성관계。결과표명：①재양품연협화학성분적분포범위내화5%현저수평하，총담여향기질、향기량、잡기、자격성화여미정현저선성부상관，연감여향기량、여미분별정현저선성정상관화부상관，총당、환원당여향기질、향기량、잡기、자격성화여미균정현저선성정상관；②총담여향기질、잡기、자격성화여미지간，연감、총당、환원당여향기질、향기량、잡기、자격성화여미지간균존재현저적비선성관계，차균표현위명현적“∩”형곡선관계，이총담여향기량적비선성관계재5%현저수평하불현저；③고연연협총담、연감、총당화환원당함량적괄의구간분별위1.5%~2.8%，2.0%~3.5%，15%~28%화15%~25%。
For analyzing the relationships between chemical components and sensory quality of tobacco leaves, an identification method for nonlinear relationship was developed based on generalized additive models. The linear and nonlinear relationships between four routine chemical components (total nitrogen, nicotine, total sugar and reducing sugar) and sensory evaluation indexes of 497 samples of middle leaves of flue-cured tobacco from main tobacco producing areas in China were studied. The results showed that: 1) At the significant level of 0.05, total nitrogen significantly negatively linearly correlated to aroma quality and quantity, offensive odor, irritancy and aftertaste; nicotine possessed a significantly negatively linear correlation with aftertaste and a significantly positively linear correlation with aroma quantity; total sugar and reducing sugar significantly positively linearly correlated to aroma quality and quantity, offensive odor, irritancy and aftertaste. 2) There were significantly nonlinear relationships between total nitrogen and aroma quality, offensive odor, irritancy,aftertaste; and between nicotine, total sugar, reducing sugar and aroma quality, aroma quantity, offensive odor, irritancy, aftertaste; all of them presented an obvious "∩"-shaped curve relationship; while the nonlinear relationship between total nitrogen and aroma quantity was not significant at the significant level of 0.05. 3) The appropriate ranges for total nitrogen, nicotine, total sugar and reducing sugar contents in flue-cured tobacco leaves were 1.5%-2.8%, 2.0%-3.5%, 15%-28%, and 15%-25%, respectively.
