The Application of Grey superior analysis in Evaluating the Impact of Chemical Compositions to Sensory Quality of Cigarette

摘要

In order to study the relative importance of polyphenols,poly-organic acids and higher aliphatic acids in tobacco quality evaluation index system,157 pieces of aged flue-cured tobacco leaves of 2006 were selected from tobacco growing area in southwest China as samples,the contents and sensory quality of whose chlorogenic acid,rutin,scopoletin,malonic acid,citric acid,oxalic acid,succinic acid,malic acid,oleic acid,stearic acid,palmitic acid,linoleic acid,myristic acid and lauric acid were detected in this article.Then from the perspectives of polyphenols,poly-organic acids,higher aliphatic acids as well as the aroma,taste and combustion characteristics of the sensory quality,the relative importance of all indexes of the polyphenol,pnly-organic acids and higher aliphatic acids were evaluated by adopting the grey superior analysis method.The results showed:① in the index system of the polyphenols (chlorogenic acid,scopoletin and rutin),the poly-organic acids and the higher aliphatic acids (oxalic acid,malonic acid,succinic acid,malic acid,citric acid,lauric acid,myristic acid,palmitic acid,linoleic acid,oleic acid and stearic acid) in flue-cured tobacco,chlorogenic acid,citric acid,malonic acid,oleic acid and rutin influenced the aroma characteristics of sensory quality more and thus were the principal factors affecting the aroma characteristics of sensory quality of tobacco; malonic acid,oleic acid,rutin and chlorogenic acid influenced the taste and the combustion characteristics of sensory quality of tobacco more and thus were the principal factors affecting the taste and combustion characteristics of sensory quality of tobacco; ② the indexes of polyphenols,poly-organic acids and higher aliphatic acids greatly influencing the sensory quality of tobacco could be found out by adopting the grey superior analysis method and be brought into the tobacco quality evaluation index system.