The Atlantic Forest is recognized as a biome rich in biodiversity. Cambuci trees (Campomanesia phaea) produce fruits that may be consumed as both fresh and processed forms but are still underutilized. The aim of this study was to describe the physicochemical characteristics and bioactive compounds in cambuci fruits from Brazilian Atlantic Forest, located at Natividade da Serra-SP, Brazil. Cambuci fruits of the fifty-nine accessions were characterized according to fresh weight, pulp yield, peel percentage, longitudinal and transversal diameters (LD and TD, respectively), pH, soluble solids content (SSC), titratable acidity (TA), SSC/TA ratio, ascorbic acid, total phenolic compounds content, and antioxidant activity using the DPPH assay. The soluble solids contents varied from 5.10 °Brix to 11.00 °Brix. The titratable acidity varied from 1.29 to 2.90 g citric acid 100 g-1. Ascorbic acid content was of 31.12 to 139.38 mg 100 g-1. Total phenolic compounds varied from 330.5 mg GAE 100 g-1 to 3,526.04 mg GAE 100 g-1. The antioxidant activity was of 65.03 µmol Trolox g-1 fruit pulp (fresh weight) to 199.78 µmol Trolox g-1 fruit pulp (fresh weight), a factor of 6.7 difference between the extremes. These results showed cambuci fruits presented as rich source of ascorbic acid, total phenolic compounds, and with high antioxidant capacity.
Uvaia (Eugenia pyriformis Cambess) is a fruit tree native to the Atlantic Forest and that features peculiar aroma and flavor. Although this fruit is highly popular locally, its commercial farming is virtually nonexistent. In addition, limited studies on this fruit have been conducted. Therefore, the present study aimed to investigate the physical, chemical, and functional characteristics of two uvaia fruit populations grown in Salesópolis, SP, Brazil, in order to determine their potential for being consumed both in natura and processed. Uvaia fruits were evaluated as for skin color, whole fruit weight, longitudinal and transversal diameters, seed percentage, pulp yield, pulp firmness, pH, total soluble solids (TSS), total titratable acidity (TTA), TSS/TTA ratio, total soluble sugars, soluble and total pectins, total carotenoids, yellow flavonoids, total phenolic compounds, ascorbic acid, and in vitro antioxidant capacity (DPPH and ORAC assays). The total mineral content was also determined. Comparison among the two populations revealed that uvaia fruits showed significantly different firmness values, large fruits showing suitable characteristics for the fresh fruit market. However, small fruits were sweeter and richer in antioxidants, allowing the consumption of both natural and processed fruits. Thus, this native fruit denotes an important source of nutrients and bioactive compounds, especially iron. Características dos frutos de duas populações de uvaias cultivadas no município de Salesópolis-SPResumo -A uvaia (Eugenia pyriformis Cambess) é um fruto nativo da Mata Atlântica que apresenta características de aroma e sabor bastante peculiares. Embora seja apreciado por populações locais, o cultivo comercial é praticamente inexistente, assim como os trabalhos de pesquisa. Em vista disso, este trabalho teve como objetivo caracterizar frutos de duas populações de uvaia cultivadas em Salesópolis, SP, com relação aos aspectos físicos, químicos e funcionais, com vistas a determinar o potencial para consumo in natura e/ou para processamento. Os frutos de duas populações de uvaia (frutos grandes e frutos pequenos) foram colhidos manualmente, quando atingiram o completo amadurecimento. Foram avaliados quanto à coloração da casca, peso do fruto inteiro, diâmetros longitudinal e transversal, porcentagem de sementes, rendimento em polpa, firmeza da polpa, pH, teor de sólidos solúveis totais (SST), acidez titulável total (ATT), relação SST/ATT, açúcares solúveis totais, pectinas solúvel e total, carotenoides totais, flavonoides amarelos, compostos fenólicos totais, ácido ascórbico e capacidade antioxidante (DPPH e ORAC). Os teores de minerais totais (Fe, Mn, Cu, Zn, P, K, Ca e Mg) também foram determinados. Quando comparadas as duas populações, pode-se observar que as uvaias apresentaram diferenças expressivas na firmeza, sendo que os frutos do tipo grande apresentaram características vantajosas para a comercialização in natura. No entanto, os frutos do tipo pequeno mostraram-se mais doces e mais ricos em compostos antioxidant...
Abstract-Pereskia aculeataMiller is a native cactaceae found from the Northeast to the South of Brazil. This plant is recognized by the high nutritional value of their leaves, which are the most used in cooking and folk medicine. However, studies on the chemical characteristics and antioxidant capacity of the ora-pro-nobis fruits are scarce. Therefore, the aim of this study was to determine the best harvest point of the ora-pro-nobis fruits to optimize the content of bioactive compounds and their antioxidant capacity. The fruits were manually harvested, defined by their peel colors in three maturity stages: unripe (green), intermediate (yellowish green), and ripe (yellow) stages. The following attributes were evaluated: soluble solids (SS), titratable acidity (TA), SS/TA ratio, pH, and content of bioactive compounds, such as total chlorophylls, carotenoids, yellow flavonoids, total phenolic compounds, and antioxidant capacity. There was a decrease in the content of chlorophyll followed by an increase in the of total carotenoids and yellow flavonoids, due to the maturity stage. For the total phenolic compounds, it was not observed significant difference between the stages. The antioxidant capacity was quantified by the ORAC method in lyophilized pulp in the unripe (1.95 mmol 100 g -1 trolox) and ripe (3.85 mmol 100 g -1 trolox) stages. The lowest contents were observed in the intermediate (0.80 mmol 100 g -1 trolox in lyophilized pulp) stage. The maturity stage significantly influenced the bioactive compounds of ora-pro-nobis, which presented higher values of total carotenoids, yellow flavonoids, and antioxidant capacity in ripe fruits. Index terms: Pereskia aculeata Miller; Maturity index; Harvest point; Postharvest; Brazilian native fruits. Frutos de ora-pro-nóbis (Pereskia aculeata miller) maduros expressam maiores conteúdos de compostos bioativos e capacidade antioxidanteResumo -Pereskia aculeata Miller é uma cactaceae nativa encontrada do Nordeste ao Sul Brasileiro. A planta é reconhecida pelo alto valor nutritivo das folhas, parte mais utilizada na culinária e na medicina popular. Entretanto, trabalhos sobre as características químicas e a capacidade antioxidante dos frutos de ora-pro-nóbis são escassos. Diante disso, o objetivo deste estudo foi determinar o melhor ponto de colheita em frutos de ora-pro-nóbis, visando a otimizar a presença de compostos bioativos e a capacidade antioxidante. Os frutos foram colhidos manualmente, e os três estádios de maturação foram definidos pela coloração da casca, sendo: estádio verde (coloração verde), intermediário (coloração verde -amarelada) e maduro (coloração amarela). Os atributos avaliados foram os sólidos solúveis (SS), acidez titulável (AT), relação SS/AT, pH, e os compostos bioativos, como as clorofilas totais,carotenoides totais, flavonoides amarelos, compostos fenólicos totais e capacidade antioxidante. Houve diminuição da clorofila e aumento no teor de carotenoides totais e flavonoides amarelos, em função do avanço no estádio de maturação. Para os compostos ...
A cebolinha é uma folhosa bastante utilizada como condimento no Brasil, onde as espécies popularmente conhecidas como comum e europeia são as mais utilizadas. Objetivou-se com este trabalho avaliar a qualidade físico-química de cebolinhas Allium fistulosum (comum) e Allium schoenoprasum (europeia). As amostras das diferentes espécies foram analisadas quanto a: coloração (luminosidade, ângulo hue e cromaticidade); sólidos solúveis (SS); acidez titulável (AT); relação SS/AT; pH; umidade; clorofila a; clorofila b; clorofila total e carotenoides totais. Com relação aos parâmetros de cor, as espécies mostraram resultados muito próximos, evidenciando coloração característica de cebolinha, expressa pela cor verde com tendência ao amarelo. Também em relação ao pH observou-se semelhanças, enquadrando-se na faixa de baixa acidez. Já para SS e acidez, a variedade europeia apresentou maiores teores. Encontrou-se também proximidade de valores para os pigmentos avaliados, sendo a proporção de clorofila a em relação à b em média de 2,3:1. Os resultados físico-químicos mostraram semelhanças entre as espécies, sendo observados baixa acidez, elevado conteúdo de umidade e de clorofila, além de razoáveis teores de sólidos solúveis e carotenoides. Essas informações sobre cebolinhas verdes cultivadas no Brasil, ainda escassas na literatura, vêm a contribuir com a produção de dados sobre essa hortaliça, podendo motivar seu consumo e a expansão de sua comercialização em formas diversificadas. Palavras-chave: Allium fistulosum; Allium schoenoprasum; Qualidade pós-colheita; Cebolinha comum; Cebolinha europeia. SummaryChives are a leafy vegetable widely used as a condiment in Brazil, where the most used species are popularly known as common and European. The aim of this study was to evaluate the physicochemical quality of in natura Allium fistulosum (common) and Allium schoenoprasum (European) chives. The samples of the different species were harvested and analysed for colour (brightness, hue angle and chromaticity); soluble solids (SS); titratable acidity (TA); SS/TA; pH; moisture; chlorophyll a; chlorophyll b; total chlorophyll and total carotenoids. Regarding the colour parameters, the species showed similar results, with the characteristic colour of chives, expressed by the colour green with a tendency to yellow. The pH values were also similar, both fitting into the low acid range. However for SS and acidity, the European variety showed higher levels. The values found for the pigments evaluated were also similar, the average ratio of chlorophyll a:b being 2.3:1. The physicochemical data also showed similarities, both species presenting low acidity, high moisture and chlorophyll contents, and reasonable levels of soluble solids and carotenoids. This information about the chives grown in Brazil, still scarce in the literature, contributes to the production of data about this plant and could motivate its consumption and the expansion of its marketing in diverse ways.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.