Quality and Antioxidant Activiy of Tomato Cultivated Under Different Sources and Doses of Nitrogen

Porto, John Silva; Rebouças, Tiyoko Nair Hojo; Moraes, Maria Olímpia Batista de; Bomfim, Marinês Pereira; Lemos, Odair Lacerda; Luz, José Magno Queiróz

doi:10.1590/1983-21252016v29n401rc

Cited by 12 publications

(8 citation statements)

References 32 publications

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“…Lycopene and other bioactive compounds are responsible for the antioxidant activity of tomato, which prevents the oxidation of essential molecules caused by free radicals. They significantly contribute to maintaining human health, including preventing heart disease and prostate cancer (Porto et al., 2016). The tomato crop has several cultivars, each with its peculiarity concerning different attributes, such as color, smell, flavor, texture, size, and loci number (Gerszberg et al., 2015).…”

Section: Introductionmentioning

confidence: 99%

Can saline irrigation improve the quality of tomato fruits?

et al. 2022

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This study aimed to investigate the effect of irrigation with saline water on fruit quality, yield, and plant nutrition of tomato (Lycopersicon esculentum Mill.) cultivars. Tomato cultivation was carried out under protected environment conditions in a double row system with drip irrigation performed according to the demand of the plants. Commercial fruit weight, commercial fruit number, fruit yield, absorption of Ca, N, P, S, K, and Mg were all affected by saline irrigation. The leaf Na concentration and the concentration of total phenolic compounds, total titratable acids, total soluble solids, vitamin C, carotenoids, and flavonoids in the fruits were favored from the increase in irrigation salinity. The Na+ causes a deficiency of Ca, which impairs seed formation in tomato fruits, as Ca is a structural element in the formation of the pollen grain. The Onix genotype had the highest yield, weight, and number of commercial fruits under control and moderate salt stress conditions. Saline water impaired nutrient absorption and improved tomato fruit quality. Under salt stress, tomato plants were able to absorb and translocate large amounts of Na+ to the shoot and even improved the organoleptic quality of fruits, increasing the content of carotenoids, flavonoids, vitamin C, total phenolic compounds, total soluble solids, and total titratable acids of tomato fruits. The clustering analysis was able to show the highest genetic dissimilarity between the group composed of Shanty, Maestrina, and Ipa 6 and the group with Sheena, Totalle, and Pizzadoro under salt stress conditions; also, it evidenced the greater stability of these genotypes.

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Section: Introductionmentioning

confidence: 99%

Can saline irrigation improve the quality of tomato fruits?

et al. 2022

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“…Values found in this study are higher than those obtained by Pedó et al (2014) who, evaluating the physicochemical characterization of sweet cultivar bell peppers submitted to different sources and organic fertilizer dosages, obtained values of 14.27; 11.78 and 12.08 mg g -1 of carotenoids. Porto et al (2016), when evaluating the quality and antioxidant activity of tomatoes grown under different sources and doses of nitrogen, found an increase from 3.33 to 4.47 g of 100 g -1 in the carotenoid content, when the N doses were elevated from 0 to 420 kg ha -1 .…”

Section: Resultsmentioning

confidence: 98%

“…Content of phenolic compounds and antioxidant activity of bell pepper fruits are of great relevance, thus accentuating its nutraceutical potential, a factor interconnected with the development of the plant grown in an environment favorable to a balanced fertilization. Porto et al (2016), describe that when there is a reduction in the ascorbic acid levels, in the flavonoids concentration, in the phenolic compounds content and in the antioxidant activity, the functional quality of the fruits is impaired.…”

Section: Introductionmentioning

confidence: 99%

Physical-chemical quality and bioactive compounds of red bell pepper, under soil cover and fertilization

Bomfim

Silva

Costa

et al. 2020

Agraria

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Bell pepper crop is among the ten most important vegetables in Brazil. Using organic fertilizers as an alternative to mineral fertilizers is an integral part of the search for safe food from organic production systems. The objective of the present study was to evaluate the quality of red bell pepper fruits, grown under soil cover and organic and or mineral fertilization. Treatments consisted of three soil cover types [no cover; covered with carnaúba straw (Copernicia prunifera) and covered with weeding] and fertilizers [100% organic (OF) and 0% mineral (MF); 100% OF and 50% MF; 50% OF and 50% MF; 50% of OF and 100% of MF and 0% of OF and 100% of MF], the design used was randomized blocks with a split plot arrangement of 3 x 5 and 4 replicates. Analyzed variables were color, firmness, pH, soluble solids (SS), titratable acidity (TA), ratio (SS/TA), vitamin C, carotenoids, total flavonoids and phenols. For bell pepper fruits, soil cover with carnaúba straw provided better carotenoid content. Organomineral fertilization increased carotenoids and phenols accumulation and the treatment with only organic fertilization resulted in lower contents of these bioactive compounds.

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“…In this sense, the values obtained can also differ depending on the type of extraction and quantification. The method used for this study through a spectrophotometry is considered easy, economical and fast (D'Souza et al 1992;Aguirre and Cabrera 2012;Kavitha et al 2014;Zouari et al 2014;Porto et al 2016;Del Giudice et al 2017), and is generally useful when associated with other parameters for a group analysis. Nevertheless, these measurements can be done through diverse techniques, many of them reported for tomato or related subproducts.…”

Section: Antioxidants Concentrationmentioning

confidence: 99%

Selection of promissory crops of wild cherry-type tomatoes using physicochemical parameters and antioxidant contents

et al. 2020

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Tomato is considered a fruit with a high food demand across the world due to its high antioxidant capacity. Lycopene content in tomato has been widely studied, particularly in cherry-type tomatoes which are considered a high source of lycopene for humans. The aim of this study was to analyze the differences in terms of concentration and variation of diverse physicochemical parameters of quality (acidity, vitamin C, pH, °Brix, color coordinates L*, a* and b*) and, antioxidants like β-carotene and lycopene in 11 accessions of cherry-type tomatoes, considering the advantages of antioxidants for human health. Multicriteria analysis and other tests showed substantial differences among the accessions. IAC401 was associated with the best physicochemical characteristics of a promissory cherry-type tomato for cultivation due to its association with functional food, followed by IAC426R and IAC1624. This study allowed an innovative association of physicochemical characteristics and antioxidant contents of cherry-type tomatoes through multicriteria analyses which enable the analysis, elimination, and proposal of promising accessions for their use in future crops which will promote the best intrinsic features of tomato to be used in the studied region. In this case accessions with the highest scores offer not only optimum amounts of antioxidants and highest levels of organic acids and sugars.

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Quality and Antioxidant Activiy of Tomato Cultivated Under Different Sources and Doses of Nitrogen

Cited by 12 publications

References 32 publications

Can saline irrigation improve the quality of tomato fruits?

Can saline irrigation improve the quality of tomato fruits?

Physical-chemical quality and bioactive compounds of red bell pepper, under soil cover and fertilization

Selection of promissory crops of wild cherry-type tomatoes using physicochemical parameters and antioxidant contents

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