species discrimination among three kinds of puffer fish using an electronic nose combined with olfactory sensory evaluation物种歧视中三种河豚鱼使用电子鼻子嗅觉感官评价相结合.pdf

Sensors 2012, 12, 12562-12571; doi:10.3390/s120912562 OPEN ACCESS sensors ISSN 1424-8220 /journal/sensors Article Species Discrimination among Three Kinds of Puffer Fish Using an Electronic Nose Combined with Olfactory Sensory Evaluation Meixiu Zhang 1, Xichang Wang 1, Yuan Liu 1,2,*, Xinglian Xu 2 and Guanghong Zhou 2 1 College of Food Science and Technology, Shanghai Engineering Research Center of Aquatic-Product Processing Preservation, Shanghai Ocean University, Shanghai 201306, China; E-Mails: mxzhan (M.Z.); xcwang@ (X.W.) 2 National Center of Meat Quality and Safety Control, Nanjing Agricultural University, Nanjing 210095, China; E-Mails: xlxu@ (X.X.); ghzhou@ (G.Z.) * Author to whom correspondence should be addressed; E-Mail: yliu@; Tel.: +86-21-6190-0380; Fax: +86-21-6190-0365. Received: 11 May 2012; in revised form: 31 July 2012 / Accepted: 2 August 2012 / Published: 13 September 2012 Abstract: Species discrimination among three kinds of puffer fish, Takifugu obscurus, Takifuguflavidus and Takifugu rubripes, was conducted using an electronic nose combined with olfactory sensory evaluation. All data were treated by multivariate data processing based on principal component analysis (PCA) and discriminant factor analysis (DFA). The results showed the discriminant model by PCA method and DFA method. Using PCA and DFA, it was shown that the electronic nose was able to reasonably distinguish between each of the eleven puffer fish