Hibiscus Sabdariffa
Mostrando 1-12 de 30 artigos, teses e dissertações.
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1. Expandindo a distribuição geográfica de Hibiscus sabdariffa L. (Malvaceae): uma espécie naturalizada e negligenciada para a flora brasileira
RESUMO Hibiscus sabdariffaé uma espécie pantropicalmente distribuída e cultivada devido à sua importância econômica. Possivelmente esta espécie é originária do Sudão, tendo sido, posteriormente, levada para o restante da África, sudeste da Ásia e América Central. Registros da naturalização de H. sabdariffa são conhecidos para a região neotro
Hoehnea. Publicado em: 25/04/2019
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2. Control químico del manchado de hojas y cálices de jamaica en Guerrero, México
RESUMO A mancha de folhas e cálices da jamaica, causada por Corynespora cassiicola, é a principal limitante fitossanitária da cultura da vinagreira (Hibiscus sabdariffa) no Estado de Guerrero, México, provocando perdas significativas na produção. Para seu controle, se avaliou a eficácia biológica de vários produtos químicos (convencionais e alterna
Summa phytopathol.. Publicado em: 2019-03
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3. Characterization of hibiscus sabdariffa fiber as potential reinforcement for denture acrylic resins
ABSTRACT This study aimed to determine the characteristics of Hibiscus sabdariffa as a fiber-reinforcement material for denture acrylic resins. The Hibiscus sabdariffa fiber was extracted by hot water retting. The fiber was treated at room temperature in aqueous solution of NaOH for 8 hours at 8% concentration. Micrometre gauge and Field emission scanning el
Matéria (Rio J.). Publicado em: 06/12/2018
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4. AVALIAÇÃO DA ADSORÇÃO E ESTUDO ELETROQUÍMICO DE CÉLULAS SOLARES PRODUZIDAS COM TiO2 E CORANTE EXTRAÍDO DO HIBISCUS
Dye-sensitized solar cells using natural dyes have lower cost when compared to ruthenium-based dyes. This paper aims to evaluate, electrochemically, solar cells composed of TiO2 with dye extracted from the Hibiscus(var. Sabdariffa) and propose an adsorption model capable of predicting the adsorption mechanism of the dye on the semiconductor surface. The char
Quím. Nova. Publicado em: 2018-05
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5. Nutritional Evaluation of Non-Conventional Vegetables in Brazil
ABSTRACT The objective of this study was to characterize the nutritional compounds of interest present in vegetables known as non-conventional, in Brazil. The following evaluations were carried out: antioxidant activity, phenolic compounds, vitamin C, calories, carbohydrates, humidity, lipids, proteins, fiber, acidity and quantification of minerals (P, K, Ca
An. Acad. Bras. Ciênc.. Publicado em: 23/04/2018
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6. Identification of roselle varieties through simple discriminating physicochemical characteristics using multivariate analysis
Abstract The objective of this work is to study the feasibility of a more objective and rigorous classification of the calices of Hibiscus sabdariffa based on their physicochemical profile. To do so, 19 analyses were carried out on 4 varieties of calices cultivated in Senegal: Vimto, Koor, Thaï and CLT92. Principal component analysis results showed that 15
Food Sci. Technol. Publicado em: 11/01/2018
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7. Unconventional vegetables collected in Brazil: chromosome number and description of nuclear DNA content
Abstract The aim of this study was to perform chromosome counts and nuclear DNA quantification of the unconventional vegetables species: bertalha (Basella alba L.), vinagreira verde (Hibiscus sabdariffa L.), azedinha (Rumex acetosa L.), peixinho (Stachys byzantina K. Koch), and capuchinha (Tropaeolum majus L.). Metaphase chromosomes were obtained from the pr
Crop Breed. Appl. Biotechnol.. Publicado em: 2017-12
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8. Stability and degradation kinetics of crude anthocyanin extracts from H. sabdariffa
Abstract Hibiscus sabdariffa is an under-utilized plant that has reported to have great potential in the food industry. The vibrant red pigment from the calyces indicate a source of anthocyanins. Anthocyanins would make ideal natural food colourants with additional nutritional benefits however stability is a hindering factor. Stability studies were the main
Food Sci. Technol. Publicado em: 29/05/2017
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9. Anti-Escherichia coli effect of Hibiscus sabdariffa L. in a meat model
Abstract Hibiscus sabdariffa L. is used in traditional medicine because of its bioactive properties, such as antioxidant and antibacterial. Escherichia coli is a Gram-negative bacteria and as an indicator of contamination in food. The aim of this work was to evaluate the anti-Escherichia coli effect and the change in pH on the control of aerobic mesophilic m
Food Sci. Technol. Publicado em: 27/04/2017
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10. APPLICATION OF PARAFAC AND OPLS-DA ANALYSES ON HPLC FINGERPRINTS FOR THE CHARACTERIZATION OF Hibiscus sabdariffaCALYXES
The calyxes of Hibiscus sabdariffa are used in traditional medicine around the world. However, quality assurance protocols and chemical variability have not been previously analyzed. In the present study, chemical characterization of a set of samples of H. sabdariffa calyxes commercialized in Colombia was accomplished with the aim to explore the chemical var
Quím. Nova. Publicado em: 2016-02
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11. Produtividade de vinagreira, pimenta rosa e carobinha cultivadas em sucessão a mucuna preta e feijão de porco
RESUMO O uso de adubos verdes e/ou de plantas de cobertura é uma técnica que vem sendo difundida para o cultivo de espécies medicinais, por garantir a sustentabilidade do solo agrícola, ser flexível em seu uso e por melhorar a atividade biológica do solo. O objetivo do trabalho foi avaliar o uso de culturas de cobertura para incrementar a produção de
Rev. bras. plantas med.. Publicado em: 2016
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12. Compostos fenólicos de Hibiscus sabdariffa e influência de resíduos orgânicos em sua propriedade antitumoral e antioxidante
O objetivo deste estudo foi avaliar a atividade antioxidante, antitumoral e o conteúdo de fenólicos e flavonoides do extrato metanólico das folhas e cálices de Hibiscus sabdariffa (rosela) cultivada com cama de frango e organosuper ® em três modos de aplicação. O conteúdo fenólico total de cada extrato foi determinado utilizando o reagente de Folin
Braz. J. Biol.. Publicado em: 2015-03