Characteristics of the fruits of two uvaia populations grown in Salesópolis, SP, Brazil

Silva, Aline Priscilla Gomes da; Tokairin, Tatiane de Oliveira; Alencar, Severino Matias de; Jacomino, Ângelo Pedro

doi:10.1590/0100-29452018511

Cited by 23 publications

(24 citation statements)

References 21 publications

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“…Plant 4 presented a high total carbohydrate content (116.4 g kg −1 ), and this was significantly different from the other plants. This can be explained because uvaia pulp has a high reducing sugar (glucose), soluble sugar, and soluble pectin content . Moreover, according to Silva et al ., uvaia is a fruit with a high carbohydrate content (536 g kg −1 dry weight).…”

Section: Resultsmentioning

confidence: 99%

“…Uvaia can be found from northeast Brazil to the south, in the Brazilian Atlantic Forest. The fruits of uvaia have a spherical appearance, 2–4 cm in diameter, with an acid and sweet taste, a velvety texture, a thin skin, and a yellow‐orange color . Studies performed with uvaia pulp demonstrate that the fruit has a high phenolic compound content and high total carotenoid content, especially lutein, zeaxanthin, β ‐cryptoxanthin, α ‐carotene, and β ‐carotene.…”

Section: Introductionmentioning

confidence: 99%

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Geographical discrimination of uvaia (Eugenia pyriformis Cambess) by principal component analysis

et al. 2019

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BACKGROUND The international marketing of native Brazilian fruits may benefit from research into discrimination between plants with particular properties. Plants with certain characteristics have strong potential for use in agroindustry and for the development of new processed products. In the current study, 12 uvaia plants (Eugenia pyriformis Cambess), native to Brazil, were geographically discriminated by chemometric methods, using nutritional composition, physicochemical characterization, bioactive compounds, and antioxidant capacity data. RESULTS Uvaia fruits presented good nutritional value, with a high moisture and carbohydrate content. All fruits presented a pH value lower than 4, being classified as highly acidic, and the total soluble solids (°Brix) ranged between 2.90 and 9.80. Some plants had a higher vitamin C content, and all the plants had a high bioactive compound content (phenolic and flavonoids) and antioxidant capacity in 1,1‐difenil‐2‐picrilhidrazil (DPPH), 2,2'‐azino‐bis(3‐ethylbenzothiazoline‐6‐sulfonic acid) (ABTS), and ferric reducing antioxidant power (FRAP) assays. Hydroethanolic solution was the best extraction solvent tested when compared with water and ethanol. Using principal component analysis, it was possible to discriminate among the plants in five different groups; however, just one group was responsible for higher antioxidant compound content. CONCLUSION In this work, 12 native uvaia plants were discriminated by their geographical origin using a chemometric approach. Genetic improvement based on natural selection could be accomplished with some of the plants to improve the quality of uvaia pulp and to develop new cultivars. © 2019 Society of Chemical Industry

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Geographical discrimination of uvaia (Eugenia pyriformis Cambess) by principal component analysis

et al. 2019

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“…O comprimento e diâmetro médio dos frutos de uvaieira nos estádios de maturação avaliados neste trabalho foram superiores aos reportados por Silva et al (2018b), cujas dimensões foram de 22,0 mm de comprimento e 27,5 mm de diâmetro, para frutos de uvaieira colhidos maduros. A massa fresca média dos frutos de uvaieira avaliados neste trabalho foi superior ao reportado por Silva et al (2018a), cujo valor médio foi de 8,25 g para frutos de uvaieira colhidos maduros provenientes do município de Salesópolis, SP.…”

Section: Discussão Atributos Físicosunclassified

“…Entretanto, os frutos da uvaieira apresentam curta vida útil quando armazenados sob condições de temperatura ambiente, requerendo a aplicação de métodos de conservação póscolheita (Silva et al, 2018b). Assim, a determinação do ponto de colheita é estratégia chave para que se tenha maior durabilidade com qualidade após a colheita.…”

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Atributos de qualidade, compostos bioativos e atividade antioxidante de frutos de uvaieira durante a maturação

Neto

Silva

Dantas³

2020

Agrarian

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Este trabalho teve como objetivo avaliar as mudanças nos aspectos de qualidade, compostos bioativos e atividade antioxidante de frutos de uvaieira (Eugenia pyriformis Cambess) em diferentes estádios de maturação. Os frutos foram avaliados quanto à massa fresca, comprimento e diâmetro, rendimento de polpa, sólidos solúveis (SS), acidez titulável (TA), relação SS/TA, ácido ascórbico, carotenoides totais, flavonoides amarelos e atividade antioxidante (DPPH). O delineamento experimental foi o inteiramente casualizado. Os frutos da uvaieira apresentam aumento na massa fresca e rendimento de polpa durante a maturação, atingindo médias de 11,69 g e 65,49% ao final, respectivamente. A uvaia é um fruto de elevada acidez, a qual diminui com a maturação, paralelamente ao aumento nos sólidos solúveis. A capacidade antioxidante total aumenta com o avanço da maturação da uvaia, em paralelo ao aumento dos teores de carotenoides e flavonoides, caracterizando as mudanças mais marcantes dos estádios finais da maturação.

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“…Research has shown that E. pyriformis EO has acaricidal (De Assis et al 2011), antimicrobial, antioxidant (Stieven et al 2009), and antifungal (Souza 2013) potential against Tyrophagus putrescentiae and Suidasia pontifica Oudemans. Studies conducted with the fruits of "uvaia" revealed the presence of total flavonoids and phenolic compounds, highlighting the antioxidant potential of this species (Silva et al 2018, Da Silva et al 2019. However, there are no reports in the literature on the application of E. pyriformis oil in the control of southern cattle tick, which led our research group to evaluate the chemical composition of E. pyriformis leaf EO and its effectiveness in the control of this pathogen in vitro and ex situ (free-living cycle), as well as to measure the acaricidal activity of this EO in application under semi-natural conditions for the control of R.…”

Section: Introductionmentioning

confidence: 98%

Biocidal potential of Eugenia pyriformis essential oil in the control of Rhipicephalus (Boophilus) microplus in the free-living cycle

et al. 2019

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Brazil has one of the largest commercial cattle herds in the world, which naturally coexist with an enormous number of parasitic species. Southern cattle tick, Rhipicephalus (Boophilus) microplus, is among these species, interfering with animal productivity and causing losses to the beef and dairy cattle sector. The use of chemical acaricides in the control of this mite has resulted in the emergence of resistant populations. In this sense, alternative control measures using plants as sources of botanical acaricides have shown to be effective. Eugenia pyriformis Cambess is a Brazilian plant with antioxidant and antimicrobial activity; however, there are no reports on its acaricidal activity in the literature. The present study aimed to evaluate the acaricidal and larvicidal potential of E. pyriformis leaf essential oil (EO) on southern cattle tick at different stages of the reproductive cycle. E. pyriformis leaves were collected and dried, and had their EO extracted by hydrodistillation (3h) using a modified Clevenger apparatus. Chemical analysis was performed by gas chromatography coupled with mass spectrometry (GC/MS), and 32 compounds belonging to the sesquiterpene class were identified: hydrocarbons (17.98%) and oxygenated forms (81.96%), with spathulenol (43.65%) and caryophyllene oxide (12.17%) as the most common. The EO was evaluated by the Adult Immersion Test at the concentrations (500.00 to 3.12mg/mL) in which the following parameters were measured: mortality of females (%), hatchability of eggs (%), and product efficiency (%). Larvae were assessed by the Larval Packet Test at concentrations ranging from 25.00 to 0.00004mg/mL. Lethal concentrations (LC) required for killing 50 and 99.9% of adult females and larvae were determined using Probit analysis. LC50 and LC99.9 of EO were 0.06 and 24.60mg/mL and 1,208.80 and 2,538mg/mL for larvae and adult females, respectively. Action of the EO in the free-living cycle of R. (B.) microplus larvae was another parameter assessed. To this end, the larvae were deposited in pots containing Brachiaria decumbens and, after migration to the leaf apex, a solution containing LC99.9 (24.60mg/mL) of the EO was sprayed. After 24h, 72.25% of the larvae had died, indicating stability of the EO when subjected to uncontrolled temperature and humidity conditions. The mechanism of action through which the EO killed the larvae and adult females was investigated by the Bioautographic Method, which showed inhibition of 3.15mg/mL of the EO on the acetylcholinesterase (AChE) enzyme. The results found in the present experiment indicate that E. pyriformis essential oil is an alternative in the control of southern cattle tick in the larval (parasitic) and free-living cycle (non-parasitic) stages under field conditions.

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Characteristics of the fruits of two uvaia populations grown in Salesópolis, SP, Brazil

Cited by 23 publications

References 21 publications

Geographical discrimination of uvaia (Eugenia pyriformis Cambess) by principal component analysis

Geographical discrimination of uvaia (Eugenia pyriformis Cambess) by principal component analysis

Atributos de qualidade, compostos bioativos e atividade antioxidante de frutos de uvaieira durante a maturação

Biocidal potential of Eugenia pyriformis essential oil in the control of Rhipicephalus (Boophilus) microplus in the free-living cycle

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