Activité antioxydante in vitro des extraits des graines de Hibiscus sabdariffa L. récoltées dans quatre localités du Mali

2020 ◽  
Vol 6 (10) ◽  
pp. 557-560
Author(s):  
Samaké Edouard Savio ◽  
Togola Issiaka ◽  
Tounkara Fatoumata
Keyword(s):  
Hibiscus Sabdariffa ◽  
Activité Antioxydante

scholarly journals In vitro vasorelaxation mechanisms of bioactive compounds extracted from Hibiscus sabdariffa on rat thoracic aorta

2009 ◽  
Vol 6 (1) ◽  
pp. 45 ◽  
Author(s):  
Mamadou Sarr ◽  
Saliou Ngom ◽  
Modou O Kane ◽  
Alassane Wele ◽  
Doudou Diop ◽  
...  
Keyword(s):  
Thoracic Aorta ◽  
Bioactive Compounds ◽  
Hibiscus Sabdariffa ◽  
Rat Thoracic Aorta

In vitro gastrointestinal digestion of Hibiscus sabdariffa L.: The use of its natural matrix to improve the concentration of phenolic compounds in gut

LWT ◽  
2013 ◽  
Vol 51 (1) ◽  
pp. 260-265 ◽  
Author(s):  
Adriana Villanueva-Carvajal ◽  
Luz Raquel Bernal-Martínez ◽  
Margarita Teresa García-Gasca ◽  
Aurelio Dominguez-Lopez
Keyword(s):  
Phenolic Compounds ◽  
Hibiscus Sabdariffa ◽  
Gastrointestinal Digestion ◽  
In Vitro Gastrointestinal Digestion

scholarly journals Protective Signatures of Roselle (Hibiscus sabdariffa L.) Calyx Fractions against Staphylococcus aureus in Drosophila Infection Model

2020 ◽  
Vol 27 (4) ◽  
pp. 306
Author(s):  
Firzan Nainu ◽  
M. Natsir Djide ◽  
Subehan Subehan ◽  
Sartini Sartini ◽  
Tri Puspita Roska ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Early Death ◽  
Luciferase Reporter ◽  
Infection Model ◽  
Hibiscus Sabdariffa ◽  
Immune Stimulation ◽  
Wild Type ◽  
Toll Pathway

The rise of antibiotic-resistant Staphylococcus aureus-related clinical cases is an alarming chronicle for global communities. This research was conducted to examine the antistaphylococcal effect of roselle (Hibiscus sabdariffa L.) calyx fractions in the Drosophila model. In the infection experiment, wild-type and immunodeficient Drosophila were pricked with S. aureus and subsequently subjected to fly survivorship and colony-forming assays, in the presence or absence of roselle calyx fractions. The Involvement of immune stimulation in the host antibacterial protection was assessed in vitro using cell-based luciferase reporter assay and in vivo using RT-qPCR analysis on adult flies. A declining rate of fly survivorship and augmentation of bacterial growth were observable in S. aureus-infected wild-type flies but subject to improvement in the presence of roselle calyx fractions. Cell-based analysis revealed the absence of host immune stimulation via Drosophila Toll pathway and roselle calyx fractions-treated immune-deficient flies lacking for components in the Toll pathway were protected from infection-induced early death phenotype and harbored reduced number of S. aureus colonies. Overall, our data confirmed the in vivo anti-staphylococcal activity of roselle calyx fractions in Drosophila infection model and such protective signature was devoid of host immune stimulation.

scholarly journals The difference of the salivary volume before and after drinking the rosella tea (Hibiscus sabdariffa)

2010 ◽  
Vol 22 (3) ◽  
Author(s):  
Mutiara Indah Permata Sari Islami ◽  
Edeh Roletta Haroen ◽  
Sri Tjahajawati
Keyword(s):  
In Vitro Study ◽  
T Test ◽  
Hibiscus Sabdariffa ◽  
Test Analysis ◽  
Community Benefits ◽  
Significant Difference ◽  
Before And After ◽  
Quasi Experimental ◽  
The Difference

Introduction: Roselle plants (Hibiscus sabdariffa) is one of the herbs that began to be used by the community. Benefits of this plant is quite a lot for health. The portion taken for consumption is the red flower petals. oselle tea is one of the sour beverages which can affect the salivary gland secretion. The purpose of this study is to analyzed the difference of salivary volume before and after drinking roselle tea. Methods: This study has been conducted to 40 students of Faculty of Dentistry, Padjadjaran University, ranging from 18-23 years of age with good general condition. This study is quasi-experimental in vitro study using the paired test analysis with α = 0,05 of the data collected from salivary volume. Results: The result of study indicates that the average of salivary volume before drinking roselle tea is 1,90 milliliter. After drinking roselle tea, the average of salivary volume is 4,54 milliliter. The result of paired test analysis shows that t-test is 16,172 and t-table is 2,022. The value of t-test > t-table. Result of statistic shown there is significant difference of salivary volume before and after drinking roselle tea. Conclusion: There is a difference of salivary volume before and after drinking roselle tea.

scholarly journals INDUCTION OF ANTHOCYANINS AND PHENOLIC COMPOUNDS IN CELL CULTURES OF ROSELLE (Hibiscus sabdariffa L.) in vitro

2011 ◽  
Vol XVII (2) ◽  
pp. 77-87 ◽  
Author(s):  
Alonso de Dios-López ◽  
◽  
Efigenia Montalvo-González ◽  
Isaac Andrade-González ◽  
Juan Florencio Gómez-Leyva
Keyword(s):  
Phenolic Compounds ◽  
Cell Cultures ◽  
Hibiscus Sabdariffa

scholarly journals STUDY IN VIVO, IN SILICO AND IN VITRO OF ALPHA-AMYRIN AND LUPEOL, COMPOUNDS ISOLATED OF HIBISCUS SABDARIFFA L., AS DUAL AGONISTS OF PPARdelta/gamma

2018 ◽  
Vol WCP2018 (0) ◽  
pp. PO4-8-25
Author(s):  
Abraham Giacoman ◽  
Alejandro Zamilpa-Alvarez ◽  
Sergio N. Hidalgo-Figueroa ◽  
Gabriel Navarrete-Vazquez ◽  
Ruben Roman-Ramos ◽  
...  
Keyword(s):  
In Silico ◽  
Hibiscus Sabdariffa

scholarly journals Hibiscus sabdariffa anthocyanins-rich extract: Chemical stability, in vitro antioxidant and antiproliferative activities

2018 ◽  
Vol 113 ◽  
pp. 187-197 ◽  
Author(s):  
Laércio Galvão Maciel ◽  
Mariana Araújo Vieira do Carmo ◽  
Luciana Azevedo ◽  
Heitor Daguer ◽  
Luciano Molognoni ◽  
...  
Keyword(s):  
Chemical Stability ◽  
Hibiscus Sabdariffa ◽  
Antiproliferative Activities

scholarly journals RIZOBACTERIAS NATIVAS EN JAMAICA ANTAGONISTAS A Phytophthora parasitica Dastur: AISLAMIENTO Y CARACTERIZACIÓN

2016 ◽  
Vol 39 (2) ◽  
pp. 151-158
Author(s):  
Magnolia Meléndez-Monroy ◽  
Sergio Aranda-Ocampo ◽  
Guillermo Carrillo-Castañeda ◽  
Javier Hernández-Morales ◽  
Lauro Soto-Rojas
Keyword(s):  
Hibiscus Sabdariffa ◽  
Phytophthora Parasitica

Las comunidades microbianas en la rizosfera son importantes en la nutrición y sanidad de las plantas. En esta investigación se estudiaron las poblaciones bacterianas cultivables nativas en la rizosfera de jamaica (Hibiscus sabdariffa L.) var. Tecoanapa en los estados fenológicos de crecimiento inicial, desarrollo de botones florales y floración, en las localidades: Las Ánimas, Saucitos, Pueblo Largo, Santa Rosa y Xalpatláhuac municipio de Tecoanapa, Guerrero, con el objetivo de caracterizar fenotípica y genotípicamente rizobacterias antagonistas in vitro a Phytophthora parasitica. La densidad de población bacteriana total en la rizosfera fue log 3.50 y 6.56 UFC g-1 de raíz. El estudio comparativo entre sitios mostró que el promedio de UFC g-1 de raíz en la etapa de crecimiento inicial fue estadísticamente mayor (P > 0.05) y que el magnesio (r = 0.93) y el fósforo en el suelo (r = 0.81) tienen una correlación significativa con los valores de UFC. El antagonismo de 450 aislados bacterianos a P. parasitica mediante ensayos in vitro generó 18 cepas bacterianas eficientes. La caracterizaron de las bacterias mostró que 100 % de ellas expresaron actividad enzimática lipolítica y proteolítica, 88.9 % produjeron sideróforos, 44.4 % produjeron ácido indol-3 acético, y 72.2 % solubilizaron fosfatos. De las 18 cepas iniciales, seis expresaron las cinco actividades relacionadas con el antagonismo o promoción del crecimiento. Las cepas (n = 18) se identificaron genéticamente por la técnica de reacción en cadena de la polimerasa (PCR, por sus siglas en inglés) mediante la amplificación y secuenciación de la región 16S rADN con los iniciadores 27F y 1492R. Los géneros identificados en la rizosfera de jamaica y con actividad antagonista a P. parasitica y promotoras del crecimiento vegetal fueron Serratia, Pseudomonas y Stenotrophomonas con una homología del 99 %. Este estudio es el primero que se ha publicado sobre las comunidades bacterianas cultivables nativas en la rizosfera de jamaica.

scholarly journals Aqueous extract of Hibiscus sabdariffa inhibits pedestal induction by enteropathogenic E. coli and promotes bacterial filamentation in vitro

PLoS ONE ◽  
2019 ◽  
Vol 14 (3) ◽  
pp. e0213580
Author(s):  
Reda Mohamed-Salem ◽  
Carmina Rodríguez Fernández ◽  
Elvira Nieto-Pelegrín ◽  
Beatriz Conde-Valentín ◽  
Angel Rumbero ◽  
...  
Keyword(s):  
Aqueous Extract ◽  
Hibiscus Sabdariffa ◽  
E Coli
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