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6 results on '"Faliarivony Randriamialinoro"'

1. In vitro efficacy of essential oils against Sarcoptes scabiei

Author

Valérie Andriantsoanirina, Jacques Guillot, Michel Ratsimbason, Ghozlene Mekhloufi, Faliarivony Randriamialinoro, Lalasoanirina Ranarivelo, Frédéric Ariey, and Rémy Durand

Subjects
Medicine, Science
Abstract

Abstract The mite Sarcoptes scabiei is responsible for scabies, a pruritic and contagious skin disease in humans. S. scabiei is also responsible for mange in a wide range of animal species. The treatment of S. scabiei infection is hampered by an under-effectiveness of the few available drugs. The objective of this work was to evaluate the in vitro acaricide activity of a large number of plant essential oils (EOs) against S. scabiei. EOs were selected mainly on the basis of traditional treatments for dermatological infections in Madagascar. The sarcoptes originating from a porcine animal model were tested at concentrations ranging from 10 to 0.1%. The viability of sarcoptes was assessed by stereomicroscopic observation at 5 min, 15 min, 30 min, 45 min and then every hour until 6 h after treatment. Estimates of lethal time and lethal concentration producing 50% mortality were generated using a probit analysis. The survival curves were estimated using the Kaplan Meier method. A total of 31 EOs from different plants were tested. Cinnamomum zeylanicum (cinnamom) and Ocimum sanctum (tulsi) oils were the most active for all concentrations tested. They may be included in in vivo studies, in order to further assess their potential interest as topical treatments.

Published
2022
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2. Fractionation and bioassay-guided isolation of Loganin from the bark of Breonia perrieri Homolle, an endemic Rubiaceae from Madagascar

Author

Marrino Rakotoarisoa, Vahinalahaja Eliane Razafintsalama, Jeannoda Victor, Sylvia Tiana Rasoarivelo Ralambonirina, Faliarivony Randriamialinoro, and Mbolatiana Abigaila Rakotoarisoa

Subjects
chemistry.chemical_classification, Traditional medicine, Iridoid, Chemistry, DPPH, Loganin, medicine.drug_class, Ethyl acetate, Glycoside, Antimicrobial, chemistry.chemical_compound, visual_art, visual_art.visual_art_medium, medicine, Bark, Antibacterial activity
Abstract

For the valorization of endemic plants of Madagascar’s flora, the study of plant Breonia perrieri (Rubiaceae) was performed. This study aimed to assess the potential antioxidant and antimicrobial activities from the bark of Breonia perrieri. The methanolic crude extract, the fractions resulting from the fractionation of the methanolic extract and the isolated compound from the active extract were tested. The antimicrobial activities were evaluated by disc diffusion method and microdilution technic and the potential antioxidant by the method of DPPH assay. Streptococcus pneumonia is the most sensitive bacterium tested with crude methanolic extract and soluble ethyl acetat (IZD = 11mm, MIC = 250 µg/mL). Soluble ethyl acetat showed the most powerful extract in scavenging ability on DPPH free radicals (IC50 = 5.43 ± 0.15µg/mL). The bioassay-guided of the ethyl acetate extract resulted in the isolation of iridoid glycoside namely Loganin. Its structure was established by spectroscopic methods. This compound exhibited strong DPPH scavenging activity with IC50 value of 1.50 µg/mL and showed antibacterial activity against Streptococcus pneumonia (IZD = 10 ± 0.5 mm). This is the first work of chemical and biological studies on B. perrieri.

Published
2021

3. Chemical Composition and Antimicrobial Activity of Leaf Essential Oil of Tetradenia nervosa Codd from Madagascar, Collected at Different Stages of Vegetative Growth and Age

Author

Lalasoa Ranarivelo, Marylin Lecsö-Bornet, Stephan Rakotonandrasana, Faliarivony Randriamialinoro, Sylvia Tiana Rasoarivelo Ralambonirina, Michel Ratsimbason, and Philippe Vérité

Subjects
Horticulture, food.ingredient, food, law, Vegetative reproduction, Tetradenia, Biology, Antimicrobial, Chemical composition, Essential oil, law.invention
Published
2020

6. African Natural Plant Products, Volume III: Discoveries and Innovations in Chemistry, Bioactivity, and Applications

Author

H. Rodolfo Juliani, James E. Simon, Chi-Tang Ho, Larry C. Hwang, Ramu Govindasamy, Iwanette du Preez, Whitney Shingenge, Davis Ropafadzo Mumbengegwi, Albertina MN Shatri, Davis R Mumbengegwi, Himoonga Bernard Moonga, Sydney Phiri, Sijmen E. Schoustra, Justin Chileshe, Taonga Chirwa-Moonga, John Shindano, Bo Yuan, Weiting Lyu, Fekadu Dinssa, Daniel Hoffman, Qingli Wu, Adolfina R. Koroch, Stefan Louw, Rianatiana H. Ranaivoarisoa, Sylvia T. Rasoarivelo Ralambonirina, Faliarivony Randriamialinoro, Rivoarison Randrianasolo, Michel Ratsimbason, Lalasoa R. Ranarivelo, Lorraine S. Cordeiro, Timothy Johns, Jerusha Nelson-Peterman, Lindiwe Sibeko, Erik Nunes Gomes, Kirsten A. Allen, Martin Zorde, Daniel J. Giurleo, Larry S. Amakuse, Julie Asante Dartey, Larry S. Amekuse, Kelsey Gustafson, Ed Dager, Sylvia Tiana Rasoarivelo Ralambonirina, Elisabeth Seguin, Philippe Vérité, Lalasoa Ranarivelo, Stephan Rakotonandrasana, Marylin Lecso-Bornet, Sylvia T. R. Ralambonirina, Jing Zhen, Cara Welch, Yue Guo, Emmanuel Bassène, Ilya Raskin, Thomas Brendler, H. Rodolfo Juliani, James E. Simon, Chi-Tang Ho, Larry C. Hwang, Ramu Govindasamy, Iwanette du Preez, Whitney Shingenge, Davis Ropafadzo Mumbengegwi, Albertina MN Shatri, Davis R Mumbengegwi, Himoonga Bernard Moonga, Sydney Phiri, Sijmen E. Schoustra, Justin Chileshe, Taonga Chirwa-Moonga, John Shindano, Bo Yuan, Weiting Lyu, Fekadu Dinssa, Daniel Hoffman, Qingli Wu, Adolfina R. Koroch, Stefan Louw, Rianatiana H. Ranaivoarisoa, Sylvia T. Rasoarivelo Ralambonirina, Faliarivony Randriamialinoro, Rivoarison Randrianasolo, Michel Ratsimbason, Lalasoa R. Ranarivelo, Lorraine S. Cordeiro, Timothy Johns, Jerusha Nelson-Peterman, Lindiwe Sibeko, Erik Nunes Gomes, Kirsten A. Allen, Martin Zorde, Daniel J. Giurleo, Larry S. Amakuse, Julie Asante Dartey, Larry S. Amekuse, Kelsey Gustafson, Ed Dager, Sylvia Tiana Rasoarivelo Ralambonirina, Elisabeth Seguin, Philippe Vérité, Lalasoa Ranarivelo, Stephan Rakotonandrasana, Marylin Lecso-Bornet, Sylvia T. R. Ralambonirina, Jing Zhen, Cara Welch, Yue Guo, Emmanuel Bassène, Ilya Raskin, and Thomas Brendler

Subjects
Essences and essential oils--Africa, Materia medica, Vegetable--Africa, Aromatic plants--Africa, Medicinal plants--Africa
Published
2020

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