Application of zNose™ for classification of enzymatically-macerated and steamed pumpkin using principal component analysis
High resolution olfactory images, called VaporPrintsTM, derived from the frequency of a surface acoustic wave (SAW) detector, are particularly useful to human because of their ability to recognize and differentiate visual images. In this study, the VaporPrintTM of fresh pumpkin (Cucurbita moscha...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
Faculty of Food Science and Technology, Universiti Putra Malaysia
2011
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| Online Access: | http://psasir.upm.edu.my/id/eprint/24037/ http://psasir.upm.edu.my/id/eprint/24037/1/24037.pdf |
| _version_ | 1848844924884090880 |
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| author | Shavakhi, Forough Boo, Huey Chern Osman, Azizah Mohd Ghazali, Hasanah |
| author_facet | Shavakhi, Forough Boo, Huey Chern Osman, Azizah Mohd Ghazali, Hasanah |
| author_sort | Shavakhi, Forough |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | High resolution olfactory images, called VaporPrintsTM, derived from the frequency of a surface acoustic
wave (SAW) detector, are particularly useful to human because of their ability to recognize and differentiate
visual images. In this study, the VaporPrintTM of fresh pumpkin (Cucurbita moschata) and different products of
the pumpkin including steamed pumpkin and also pumpkin purees as affected by different enzymes (Pectinex®
Ultra SP-L and Celluclast®; Novozyme, Denmark) were determined using an ultra-fast GC (zNoseTM) based on
a SAW sensor. The zNose™ fingerprints served as a potential tool for qualitative and discriminative distinction
of aroma between the different pumpkin products. Principal component analysis (PCA) was used to analyse the
data. Based on the results, samples were categorized into three different groups. According to the score plot of
PC 2 (second component) versus PC 1 (first component), aromas of enzymatically macerated pumpkin were
close together. The PC 1 and PC 2 factors resulted in the model that describe the 82.9% of the total variance and
seemed sufficient to define a good model. |
| first_indexed | 2025-11-15T08:38:39Z |
| format | Article |
| id | upm-24037 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T08:38:39Z |
| publishDate | 2011 |
| publisher | Faculty of Food Science and Technology, Universiti Putra Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-240372015-06-03T04:02:45Z http://psasir.upm.edu.my/id/eprint/24037/ Application of zNose™ for classification of enzymatically-macerated and steamed pumpkin using principal component analysis Shavakhi, Forough Boo, Huey Chern Osman, Azizah Mohd Ghazali, Hasanah High resolution olfactory images, called VaporPrintsTM, derived from the frequency of a surface acoustic wave (SAW) detector, are particularly useful to human because of their ability to recognize and differentiate visual images. In this study, the VaporPrintTM of fresh pumpkin (Cucurbita moschata) and different products of the pumpkin including steamed pumpkin and also pumpkin purees as affected by different enzymes (Pectinex® Ultra SP-L and Celluclast®; Novozyme, Denmark) were determined using an ultra-fast GC (zNoseTM) based on a SAW sensor. The zNose™ fingerprints served as a potential tool for qualitative and discriminative distinction of aroma between the different pumpkin products. Principal component analysis (PCA) was used to analyse the data. Based on the results, samples were categorized into three different groups. According to the score plot of PC 2 (second component) versus PC 1 (first component), aromas of enzymatically macerated pumpkin were close together. The PC 1 and PC 2 factors resulted in the model that describe the 82.9% of the total variance and seemed sufficient to define a good model. Faculty of Food Science and Technology, Universiti Putra Malaysia 2011 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/24037/1/24037.pdf Shavakhi, Forough and Boo, Huey Chern and Osman, Azizah and Mohd Ghazali, Hasanah (2011) Application of zNose™ for classification of enzymatically-macerated and steamed pumpkin using principal component analysis. International Food Research Journal, 18 (1). pp. 311-318. ISSN 1985-4668; ESSN: 2231-7546 http://www.ifrj.upm.edu.my/volume-18-2011.html English |
| spellingShingle | Shavakhi, Forough Boo, Huey Chern Osman, Azizah Mohd Ghazali, Hasanah Application of zNose™ for classification of enzymatically-macerated and steamed pumpkin using principal component analysis |
| title | Application of zNose™ for classification of enzymatically-macerated and steamed pumpkin using principal component analysis |
| title_full | Application of zNose™ for classification of enzymatically-macerated and steamed pumpkin using principal component analysis |
| title_fullStr | Application of zNose™ for classification of enzymatically-macerated and steamed pumpkin using principal component analysis |
| title_full_unstemmed | Application of zNose™ for classification of enzymatically-macerated and steamed pumpkin using principal component analysis |
| title_short | Application of zNose™ for classification of enzymatically-macerated and steamed pumpkin using principal component analysis |
| title_sort | application of znose™ for classification of enzymatically-macerated and steamed pumpkin using principal component analysis |
| url | http://psasir.upm.edu.my/id/eprint/24037/ http://psasir.upm.edu.my/id/eprint/24037/ http://psasir.upm.edu.my/id/eprint/24037/1/24037.pdf |