Factor Analysis and Modelling for Rapid Quality Assessment of Croatian Wheat Cultivars with Different Gluten Characteristics
Factor analysis and multivariate chemometric modelling for rapid assessment of baking quality of wheat cultivars from Slavonia region, Croatia, have been applied. The cultivars Žitarka, Kata, Monika, Ana, Demetra, Divana and Sana were grown under controlled conditions at the experimental field of Ag...
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| Format: | Article |
| Language: | English |
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University of Zagreb Faculty of Food Technology and Biotechnology
2008-01-01
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| Series: | Food Technology and Biotechnology |
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| Online Access: | http://hrcak.srce.hr/file/41723 |
| _version_ | 1797426269240950784 |
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| author | Želimir Kurtanjek Daniela Horvat Damir Magdić Georg Drezner |
| author_facet | Želimir Kurtanjek Daniela Horvat Damir Magdić Georg Drezner |
| author_sort | Želimir Kurtanjek |
| collection | DOAJ |
| description | Factor analysis and multivariate chemometric modelling for rapid assessment of baking quality of wheat cultivars from Slavonia region, Croatia, have been applied. The cultivars Žitarka, Kata, Monika, Ana, Demetra, Divana and Sana were grown under controlled conditions at the experimental field of Agricultural Institute Osijek during three years (2000–2002). Their quality properties were evaluated by 45 different chemical, physical and biochemical variables. The measured variables were grouped as: indirect quality parameters (6), farinographic parameters (7), extensographic parameters (5), baking test parameters (2) and reversed phase-high performance liquid chromatography (RP-HPLC) of gluten proteins (25). The aim of this study is to establish minimal number (three), i.e. principal factors, among the 45 variables and to derive multivariate linear regression models for their use in simple and fast prediction of wheat properties. Selection of the principal factors based on the principal component analysis (PCA) has been applied. The first three main factors of the analysis include: total glutenins (TGT), total ω-gliadins (Tω-) and the ratio of dough resistance/extensibility (R/Ext). These factors account for 76.45 % of the total variance. Linear regression models gave average regression coefficients (R) evaluated for the parameter groups: indirect quality R=0.91, baking test R=0.63, farinographic R=0.78, extensographic R=0.95 and RP-HPLC of gluten data R=0.90. Errors in the model predictions were evaluated by the 95 % significance intervals of the calibration lines. Practical applications of the models for rapid quality assessment and laboratory experiment planning were emphasized. |
| first_indexed | 2024-03-09T08:27:56Z |
| format | Article |
| id | doaj.art-9de68993d74b45f2b1c7412bbda868af |
| institution | Directory Open Access Journal |
| issn | 1330-9862 1334-2606 |
| language | English |
| last_indexed | 2024-03-09T08:27:56Z |
| publishDate | 2008-01-01 |
| publisher | University of Zagreb Faculty of Food Technology and Biotechnology |
| record_format | Article |
| series | Food Technology and Biotechnology |
| spelling | doaj.art-9de68993d74b45f2b1c7412bbda868af2023-12-02T20:46:33ZengUniversity of Zagreb Faculty of Food Technology and BiotechnologyFood Technology and Biotechnology1330-98621334-26062008-01-01463270277Factor Analysis and Modelling for Rapid Quality Assessment of Croatian Wheat Cultivars with Different Gluten CharacteristicsŽelimir Kurtanjek0Daniela Horvat1Damir Magdić2Georg Drezner3Faculty of Food Technology and Biotechnology, University of Zagreb, HR-10000 Zagreb, CroatiaAgricultural Institute Osijek, Južno predgrađe 17, HR-31003, Osijek, CroatiaFaculty of Food Technology, University J.J. Strossmayer of Osijek, F. Kuhača 18, HR-31000 Osijek, CroatiaAgricultural Institute Osijek, Južno predgrađe 17, HR-31003, Osijek, CroatiaFactor analysis and multivariate chemometric modelling for rapid assessment of baking quality of wheat cultivars from Slavonia region, Croatia, have been applied. The cultivars Žitarka, Kata, Monika, Ana, Demetra, Divana and Sana were grown under controlled conditions at the experimental field of Agricultural Institute Osijek during three years (2000–2002). Their quality properties were evaluated by 45 different chemical, physical and biochemical variables. The measured variables were grouped as: indirect quality parameters (6), farinographic parameters (7), extensographic parameters (5), baking test parameters (2) and reversed phase-high performance liquid chromatography (RP-HPLC) of gluten proteins (25). The aim of this study is to establish minimal number (three), i.e. principal factors, among the 45 variables and to derive multivariate linear regression models for their use in simple and fast prediction of wheat properties. Selection of the principal factors based on the principal component analysis (PCA) has been applied. The first three main factors of the analysis include: total glutenins (TGT), total ω-gliadins (Tω-) and the ratio of dough resistance/extensibility (R/Ext). These factors account for 76.45 % of the total variance. Linear regression models gave average regression coefficients (R) evaluated for the parameter groups: indirect quality R=0.91, baking test R=0.63, farinographic R=0.78, extensographic R=0.95 and RP-HPLC of gluten data R=0.90. Errors in the model predictions were evaluated by the 95 % significance intervals of the calibration lines. Practical applications of the models for rapid quality assessment and laboratory experiment planning were emphasized.http://hrcak.srce.hr/file/41723principal component analysiswheattechnological qualitygluten proteinsRP-HPLC |
| spellingShingle | Želimir Kurtanjek Daniela Horvat Damir Magdić Georg Drezner Factor Analysis and Modelling for Rapid Quality Assessment of Croatian Wheat Cultivars with Different Gluten Characteristics Food Technology and Biotechnology principal component analysis wheat technological quality gluten proteins RP-HPLC |
| title | Factor Analysis and Modelling for Rapid Quality Assessment of Croatian Wheat Cultivars with Different Gluten Characteristics |
| title_full | Factor Analysis and Modelling for Rapid Quality Assessment of Croatian Wheat Cultivars with Different Gluten Characteristics |
| title_fullStr | Factor Analysis and Modelling for Rapid Quality Assessment of Croatian Wheat Cultivars with Different Gluten Characteristics |
| title_full_unstemmed | Factor Analysis and Modelling for Rapid Quality Assessment of Croatian Wheat Cultivars with Different Gluten Characteristics |
| title_short | Factor Analysis and Modelling for Rapid Quality Assessment of Croatian Wheat Cultivars with Different Gluten Characteristics |
| title_sort | factor analysis and modelling for rapid quality assessment of croatian wheat cultivars with different gluten characteristics |
| topic | principal component analysis wheat technological quality gluten proteins RP-HPLC |
| url | http://hrcak.srce.hr/file/41723 |
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