生物灾害科学
生物災害科學
생물재해과학
Biological Disaster Science
2015年
3期
239-245
,共7页
徐庆凯%黎查根%肖先仪%钟玉德%张清莉%陈学平%郭家明
徐慶凱%黎查根%肖先儀%鐘玉德%張清莉%陳學平%郭傢明
서경개%려사근%초선의%종옥덕%장청리%진학평%곽가명
烤烟%香味物质%主成分分析%聚类分析
烤煙%香味物質%主成分分析%聚類分析
고연%향미물질%주성분분석%취류분석
flue-cured tobacco%aroma component%principal component analysis%cluster analysis
为了对江西烤烟进行综合评价，利用DPS数据处理系统软件对江西烤烟71个烟叶样本的香气成分进行主成分分析，按累积贡献率79.60%提取前7个主成分，计算综合得分，并将综合得分以卡方距离为衡量样本间品质差异的指标，运用离差平方法进行聚类分析，将71个样本分为4类。从第1类到第4类，评吸总分和香气指数B值逐渐降低。
為瞭對江西烤煙進行綜閤評價，利用DPS數據處理繫統軟件對江西烤煙71箇煙葉樣本的香氣成分進行主成分分析，按纍積貢獻率79.60%提取前7箇主成分，計算綜閤得分，併將綜閤得分以卡方距離為衡量樣本間品質差異的指標，運用離差平方法進行聚類分析，將71箇樣本分為4類。從第1類到第4類，評吸總分和香氣指數B值逐漸降低。
위료대강서고연진행종합평개，이용DPS수거처리계통연건대강서고연71개연협양본적향기성분진행주성분분석，안루적공헌솔79.60%제취전7개주성분，계산종합득분，병장종합득분이잡방거리위형량양본간품질차이적지표，운용리차평방법진행취류분석，장71개양본분위4류。종제1류도제4류，평흡총분화향기지수B치축점강저。
In order to evaluate the quality of flue-tobacco grown in Jiangxi Province comprehensively, the content of aroma components in 71 flue-cured tobacco samples were analyzed by principal component analysis with DPS (Data Processing System) software. Seven principal components with accumulative contribution rate over 79.60%were obtained, and the scores of the seven principal components and comprehensive scores of the tobacco samples were also obtained. The Chi-square distance between the comprehensive scores was taken as a measurement of tobacco samples’ differences, the system was clustered by square sum of deviation method, and the 71 samples were divided into 4 ranks. The comprehensive scores and aroma index B values gradually reduced from Rank 1 to Rank 4.
