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. 2022 Jan 20;11(3):268.
doi: 10.3390/plants11030268.

Phytochemical Characterization of a Tree Tomato (Solanum betaceum Cav.) Breeding Population Grown in the Inter-Andean Valley of Ecuador

William Viera  1 , Iván Samaniego  2 , Diana Camacho  3 , Nasratullah Habibi  4 , Lenin Ron  5 , Naveedullah Sediqui  6 , Javier Álvarez  2 , Pablo Viteri  1 , Andrea Sotomayor  1 , Jorge Merino  1 , Wilson Vásquez-Castillo  7 , Beatriz Brito  8
Affiliations

Phytochemical Characterization of a Tree Tomato (Solanum betaceum Cav.) Breeding Population Grown in the Inter-Andean Valley of Ecuador

William Viera et al. Plants (Basel). .

Abstract

Tree tomato (Solanum betaceum Cav.) is an Andean fruit crop that is grown in Ecuador. It is an exceptional source of minerals and vitamins, thus has nutraceutical properties. The objective of this research was to carry out a phytochemical characterization of a breeding population composed of 90 segregants. Pulp (including mesocarp, mucilage, seeds and placenta) was ground and sieved in order to obtain the liquid pulp to be lyophilized for the chemical analyzes. Antioxidants compounds were determined by spectrophotometry and vitamin C by reflectometry. Data were analyzed by principal components, grouping, and variance analyses; in addition, Z Score estimation was carried out to select elite individuals. There was a broad variability in the data obtained for the breeding population, polyphenol content varied from 5.11 to 16.59 mg GAE g-1, flavonoids from 1.24 to 6.70 mg cat g-1, carotenoids from 50.39 to 460.72 µg β-carotene g-1, anthocyanins from 1.06 to 240.49 mg cy-3-glu 100 g-1, antioxidant capacity from 49.51 to 312.30 µm Trolox g-1, and vitamin C from 78.29 to 420.16 mg 100 g-1. It can be concluded that tree tomato is a good source of beneficial biocompounds and has a high antioxidant capacity.

Keywords: anthocyanins; antioxidant activity; antioxidants; carotenoids; flavonoids; polyphenols; pulp.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Data variability observed in some relevant traits from the tree tomato breeding population. Red color represents the low category, black the medium category and blue the high category (Table 2). The percentage of individuals belonging to each category is shown in the legend of each trait. The dotted line indicates the mean.
Figure 1
Figure 1
Data variability observed in some relevant traits from the tree tomato breeding population. Red color represents the low category, black the medium category and blue the high category (Table 2). The percentage of individuals belonging to each category is shown in the legend of each trait. The dotted line indicates the mean.
Figure 2
Figure 2
Principal component analysis for chemical fruit traits in a tree tomato breeding population.
Figure 3
Figure 3
Different pulp fruit colors obtained from tree tomato samples of the breeding population.
See this image and copyright information in PMC

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