| Title: | Discrimination of Malus Taxa with Different Scent Intensities Using Electronic Nose and Gas Chromatography(-)Mass Spectrometry |
| Author(s): | Fan J; Zhang W; Zhou T; Zhang D; Zhang D; Zhang L; Wang G; Cao F; |
| Address: | "College of Forestry, Nanjing Forestry University, Nanjing 210037, China. Junjun.Fan@uga.edu. Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China. Junjun.Fan@uga.edu. Department of Horticulture, University of Georgia, Athens, GA 30602, USA. Junjun.Fan@uga.edu. College of Forestry, Nanjing Forestry University, Nanjing 210037, China. malus2011@163.com. Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China. malus2011@163.com. Yangzhou Crabapple Horticulture Limited Company, Yangzhou 225200, China. malus2011@163.com. College of Forestry, Nanjing Forestry University, Nanjing 210037, China. 15905184674@163.com. Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China. 15905184674@163.com. College of Forestry, Nanjing Forestry University, Nanjing 210037, China. nanlindandan@126.com. Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China. nanlindandan@126.com. Department of Horticulture, University of Georgia, Athens, GA 30602, USA. Donglin@uga.edu. College of Forestry, Nanjing Forestry University, Nanjing 210037, China. 15298395916@163.com. Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China. 15298395916@163.com. College of Forestry, Nanjing Forestry University, Nanjing 210037, China. guibinwang99@163.com. Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China. guibinwang99@163.com. College of Forestry, Nanjing Forestry University, Nanjing 210037, China. 13913028679@163.com. Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China. 13913028679@163.com" |
| ISSN/ISBN: | 1424-8220 (Electronic) 1424-8220 (Linking) |
| Abstract: | "Floral scent is important in plant reproduction and also has aesthetic implications. However, the accurate determination of aroma is presently limited by the available collection and analysis tools. In this study, the floral scents of four crabapple taxa exhibiting faint, weak, clear, and strong scent intensities were comparatively analyzed by electronic nose (E-nose) and gas chromatography(-)mass spectrometry (GC(-)MS). The E-nose was able to effectively group the different taxa in the principal component analysis in correspondence with scent intensity. GC(-)MS analysis identified a total of 60 volatile compounds. The content of nitrogen-containing compounds and aliphatics and the number of unique components of the more aromatic taxa was significantly higher than the less aromatic taxa. alpha-Cedrene, beta-cedrene, 5-methyl-1,3-dihydro-2H-benzimidazol-2-one, benzyl alcohol, linalool, and 4-pyrrolidinopyridine contributed significantly to taxon separation. The pattern recognition results confirmed that the E-nose results corroborated the GC(-)MS results. Furthermore, partial least squares regression analysis between the aromatic constituents and sensors indicated that particular sensors were highly sensitive to N-containing compounds, aliphatics, and terpenes. In conclusion, the E-nose is capable of discriminating crabapple taxa of different scent intensities in both a qualitative and quantitative respect, presenting a rapid and accurate reference approach for future applications" |
| Keywords: | *Electronic Nose Flowers/*physiology Gas Chromatography-Mass Spectrometry/*methods Least-Squares Analysis Malus/chemistry/*classification/physiology Odorants/analysis Principal Component Analysis Species Specificity Volatile Organic Compounds/*analysis/ch; |
| Notes: | "MedlineFan, Junjun Zhang, Wangxiang Zhou, Ting Zhang, Dandan Zhang, Donglin Zhang, Long Wang, Guibin Cao, Fuliang eng 164010189/the Priority Academic Program Development of Jiangsu Higher Education Institution (PAPD)/ 164010065/National Germplasm Center of Crabapple in China/ BE2017375-2/Jiangsu Provincial Science and Technology Department/ Switzerland 2018/10/17 Sensors (Basel). 2018 Oct 12; 18(10):3429. doi: 10.3390/s18103429" |
