The Compositional HJ-Biplot—A New Approach to Identifying the Links among Bioactive Compounds of Tomatoes
Tomatoes have been described as a functional food because of their particular composition of different bioactive compounds. In this study, the proximate composition, minerals and trace elements, and antioxidant compounds were determined in two tomato cultivars (Mariana and Dunkan) that were grown in...
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doaj-4f0d8e9903a24fa0b077102a6204d7002020-11-25T01:05:47ZengMDPI AGInternational Journal of Molecular Sciences1422-00672016-11-011711182810.3390/ijms17111828ijms17111828The Compositional HJ-Biplot—A New Approach to Identifying the Links among Bioactive Compounds of TomatoesMarcos Hernández Suárez0Daniel Molina Pérez1Elena M. Rodríguez-Rodríguez2Carlos Díaz Romero3Francisco Espinosa Borreguero4Purificación Galindo-Villardón5Aula Dei Scientific Technological Park Foundation, Av. Montañana 930, 50059 Zaragoza, SpainDepartment of Chemical Engineering and Pharmaceutical Technology, Food Science and Nutrition Area, University of La Laguna, 38206 La Laguna, Santa Cruz de Tenerife, SpainDepartment of Chemical Engineering and Pharmaceutical Technology, Food Science and Nutrition Area, University of La Laguna, 38206 La Laguna, Santa Cruz de Tenerife, SpainDepartment of Chemical Engineering and Pharmaceutical Technology, Food Science and Nutrition Area, University of La Laguna, 38206 La Laguna, Santa Cruz de Tenerife, SpainPlant Biology, Ecology and Earth Sciences Department, Extremadura University, Av. Elvas s/n, 06071 Badajoz, SpainStatistics Department, University of Salamanca, c/Alfonso X El Sabio s/n, 37008 Salamanca, SpainTomatoes have been described as a functional food because of their particular composition of different bioactive compounds. In this study, the proximate composition, minerals and trace elements, and antioxidant compounds were determined in two tomato cultivars (Mariana and Dunkan) that were grown in Gran Canaria (Spain) either conventionally or hydroponically. Although compositional data of this type require being subjected to the specific statistical techniques of compositional analysis, this approach has not usually been considered in this context. In the present case, a compositional Mann–Whitney U test of the data showed significant differences for each factor (cultivar and cultivation system) in several of the compositional variables studied. For the differences between cultivars, these parameters were the protein, Mg, lycopene, ascorbic acid, citric acid, and fumaric acid contents. For the differences between cultivation systems, they were mainly those of the mineral and trace elements group. Although one-year data are insufficient to make clear relationship among compounds because more repetitions in several localities and years are necessary, the compositional HJ-biplot (in which the links provide estimates of the linear relationship among variables) results agreed with other scientific results about linear relationship among some compounds analyzed.http://www.mdpi.com/1422-0067/17/11/1828tomatolinkcompositional Mann–Whitney U testcompositional HJ-biplot |
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DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Marcos Hernández Suárez Daniel Molina Pérez Elena M. Rodríguez-Rodríguez Carlos Díaz Romero Francisco Espinosa Borreguero Purificación Galindo-Villardón |
spellingShingle |
Marcos Hernández Suárez Daniel Molina Pérez Elena M. Rodríguez-Rodríguez Carlos Díaz Romero Francisco Espinosa Borreguero Purificación Galindo-Villardón The Compositional HJ-Biplot—A New Approach to Identifying the Links among Bioactive Compounds of Tomatoes International Journal of Molecular Sciences tomato link compositional Mann–Whitney U test compositional HJ-biplot |
author_facet |
Marcos Hernández Suárez Daniel Molina Pérez Elena M. Rodríguez-Rodríguez Carlos Díaz Romero Francisco Espinosa Borreguero Purificación Galindo-Villardón |
author_sort |
Marcos Hernández Suárez |
title |
The Compositional HJ-Biplot—A New Approach to Identifying the Links among Bioactive Compounds of Tomatoes |
title_short |
The Compositional HJ-Biplot—A New Approach to Identifying the Links among Bioactive Compounds of Tomatoes |
title_full |
The Compositional HJ-Biplot—A New Approach to Identifying the Links among Bioactive Compounds of Tomatoes |
title_fullStr |
The Compositional HJ-Biplot—A New Approach to Identifying the Links among Bioactive Compounds of Tomatoes |
title_full_unstemmed |
The Compositional HJ-Biplot—A New Approach to Identifying the Links among Bioactive Compounds of Tomatoes |
title_sort |
compositional hj-biplot—a new approach to identifying the links among bioactive compounds of tomatoes |
publisher |
MDPI AG |
series |
International Journal of Molecular Sciences |
issn |
1422-0067 |
publishDate |
2016-11-01 |
description |
Tomatoes have been described as a functional food because of their particular composition of different bioactive compounds. In this study, the proximate composition, minerals and trace elements, and antioxidant compounds were determined in two tomato cultivars (Mariana and Dunkan) that were grown in Gran Canaria (Spain) either conventionally or hydroponically. Although compositional data of this type require being subjected to the specific statistical techniques of compositional analysis, this approach has not usually been considered in this context. In the present case, a compositional Mann–Whitney U test of the data showed significant differences for each factor (cultivar and cultivation system) in several of the compositional variables studied. For the differences between cultivars, these parameters were the protein, Mg, lycopene, ascorbic acid, citric acid, and fumaric acid contents. For the differences between cultivation systems, they were mainly those of the mineral and trace elements group. Although one-year data are insufficient to make clear relationship among compounds because more repetitions in several localities and years are necessary, the compositional HJ-biplot (in which the links provide estimates of the linear relationship among variables) results agreed with other scientific results about linear relationship among some compounds analyzed. |
topic |
tomato link compositional Mann–Whitney U test compositional HJ-biplot |
url |
http://www.mdpi.com/1422-0067/17/11/1828 |
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