scholarly journals Óleo essencial de Melaleuca alternifolia no tratamento da acne

2021 ◽  
Vol 10 (15) ◽  
pp. e488101523108
Author(s):  
Ana Loula dos Santos ◽  
Mayara Silva Rocha Araujo ◽  
Robson Dias de Souza ◽  
Weine Cordeiro de Lima Oliveira
Keyword(s):  
Melaleuca Alternifolia

Objetivo: Entre os diversos óleos essenciais, o óleo essencial de Melaleuca alternifolia se destaca diante das suas múltiplas atividades biológicas, sendo a principal a antimicrobiana, tornando-o um elemento atraente para tratamentos faciais. Dito isso, o objetivo deste estudo é avaliar a eficácia do óleo essencial de Melaleuca alternifolia no tratamento da acne. Métodos: O trabalho desenvolvido caracteriza-se como revisão sistemática da literatura. O levantamento bibliográfico foi realizado nas bases de dados Pubmed, ScienceDirect, Lilacs e Medline.  Durante a etapa de busca, se estabeleceram como critérios de inclusão artigos publicados no período de 2011 a 2021, artigos com dados primários e disponíveis em língua inglesa, portuguesa e espanhola. Já os critérios de exclusão foram: artigos que apresentaram incompatibilidade com o tema, duplicidade nas bases e artigos de revisão. Resultados: Após a realização das buscas nas bases de dados, da aplicação dos critérios de inclusão e leitura do título e resumo, foram selecionados dez artigos que se enquadravam nos requisitos de elegibilidade. Os dez artigos foram lidos na íntegra, com análise acurada de suas metodologias e principais resultados. Considerações finais: O óleo de melaleuca apresenta um grande potencial no tratamento da acne devido sua significativa atividade antimicrobiana, capacidade de reduzir lesões, bem como auxiliar na cicatrização de feridas. Ademais, apresenta vantagens em relação ao uso de antibióticos devido ao baixo impacto no desenvolvimento de resistência e suscetibilidade aos antimicrobianos. Ainda que apresente estudos acerca das atividades farmacológicas deste óleo, é imprescindível a realização de pesquisas mais apuradas para consolidar esses apanhados.

scholarly journals Evaluation of Seven Essential Oils as Seed Treatments against Seedborne Fungal Pathogens of Cucurbita maxima

Molecules ◽  
2021 ◽  
Vol 26 (8) ◽  
pp. 2354
Author(s):  
Marwa Moumni ◽  
Mohamed Bechir Allagui ◽  
Kaies Mezrioui ◽  
Hajer Ben Amara ◽  
Gianfranco Romanazzi
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Fungal Pathogens ◽  
Seedling Emergence ◽  
Cucurbita Maxima ◽  
Melaleuca Alternifolia ◽  
Seedborne Pathogens ◽  
Origanum Majorana ◽  
Potential Use

Essential oils are gaining interest as environmentally friendly alternatives to synthetic fungicides for management of seedborne pathogens. Here, seven essential oils were initially tested in vivo for disinfection of squash seeds (Cucurbita maxima) naturally contaminated by Stagonosporopsis cucurbitacearum, Alternaria alternata, Fusarium fujikuro, Fusarium solani, Paramyrothecium roridum, Albifimbria verrucaria, Curvularia spicifera, and Rhizopus stolonifer. The seeds were treated with essential oils from Cymbopogon citratus, Lavandula dentata, Lavandula hybrida, Melaleuca alternifolia, Laurus nobilis, and Origanum majorana (#1 and #2). Incidence of S. cucurbitacearum was reduced, representing a range between 67.0% in L. nobilis to 84.4% in O. majorana #2. Treatments at 0.5 mg/mL essential oils did not affect seed germination, although radicles were shorter than controls, except with C. citratus and O. majorana #1 essential oils. Four days after seeding, seedling emergence was 20%, 30%, and 10% for control seeds and seeds treated with C. citratus essential oil (0.5 mg/mL) and fungicides (25 g/L difenoconazole plus 25 g/L fludioxonil). S. cucurbitacearum incidence was reduced by ~40% for plantlets from seeds treated with C. citratus essential oil. These data show the effectiveness of this essential oil to control the transmission of S. cucurbitacearum from seeds to plantlets, and thus define their potential use for seed decontamination in integrated pest management and organic agriculture.

Addition of tea tree oil (Melaleuca alternifolia) in diet minimize biochemical disturbances in silver catfish Rhamdia quelen exposed to the antiparasitic amitraz

Aquaculture ◽  
2021 ◽  
pp. 736954
Author(s):  
Tamires R. dos Reis ◽  
Matheus D. Baldissera ◽  
Carine F. Souza ◽  
Bernardo Baldisserotto ◽  
Julia Corá Segat ◽  
...  
Keyword(s):  
Tea Tree Oil ◽  
Melaleuca Alternifolia ◽  
Tea Tree ◽  
Silver Catfish ◽  
Rhamdia Quelen

Nanotechnology improves the therapeutic efficacy of Melaleuca alternifolia essential oil in experimentally infected Rhamdia quelen with Pseudomonas aeruginosa

Aquaculture ◽  
2017 ◽  
Vol 473 ◽  
pp. 169-171 ◽  
Author(s):  
Carine F. Souza ◽  
Matheus D. Baldissera ◽  
Roberto C.V. Santos ◽  
Renata P. Raffin ◽  
Bernardo Baldisserotto
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Essential Oil ◽  
Therapeutic Efficacy ◽  
Melaleuca Alternifolia ◽  
Rhamdia Quelen

Reproductive biology of Melaleuca alternifolia (Myrtaceae) 1. Floral biology

2010 ◽  
Vol 58 (5) ◽  
pp. 373 ◽  
Author(s):  
L. Baskorowati ◽  
M. W. Moncur ◽  
J. C. Doran ◽  
P. J. Kanowski
Keyword(s):  
Reproductive Biology ◽  
Floral Biology ◽  
Morphological Development ◽  
Tea Tree Oil ◽  
Melaleuca Alternifolia ◽  
Tea Tree ◽  
Viable Seeds ◽  
Individual Trees ◽  
Days After Anthesis ◽  
Flowering Intensity

Melaleuca alternifolia (Maiden & Betche) Cheel is commercially important as the source of essential oil for the Australian tea tree-oil industry. Information on reproductive biology of M. alternifolia is important to the Australian breeding program directed at improving the quality and quantity of tea tree oil. Flowering in three geographically separated sites – two planted seed orchards and one managed natural population, all in NSW – was observed in the present study, with supporting data obtained from glasshouse-grown plants in Canberra. The majority of the work was conducted from 2004 to 2007, although the study also drew on some prior observations. M. alternifolia has spikes of flowers that open acropetally over a 6-day period. No strong separation of male and female phases was found in any individual flower; pollen was shed by 1.4 days after anthesis and the stigma reached peak receptivity 3–5 days after anthesis. Dichogamy and acropetal floral development may lead to geitonogamy. Flowering occurred during the months of October–November, with the peak in November, and was synchronous across all three sites. Flowering intensity and success in producing capsules appeared to be associated with total spring rainfall. Initiation of flowering in M. alternifolia appears to be correlated with daylength, or an environmental parameter closely correlated with daylength. Flowering intensity varied considerably among the years surveyed, sites and families, and appears to be promoted by a period of winter minimum temperatures below 5°C. In M. alternifolia, the morphological development of buds, flowers and fruit leading to the development of mature seed takes place over a period 16–18 months from flowering. M. alternifolia differed significantly in the number of viable seeds per capsule from individual trees, from 26 ± 3.8 to 57 ± 3.8 germinants.

scholarly journals Comparative Study of Natural Terpenoid Precursors in Reactive Plasmas for Thin Film Deposition

Molecules ◽  
2021 ◽  
Vol 26 (16) ◽  
pp. 4762
Author(s):  
Daniel S. Grant ◽  
Jakaria Ahmed ◽  
Jason D. Whittle ◽  
Andrew Michelmore ◽  
Krasimir Vasilev ◽  
...  
Keyword(s):  
Comparative Study ◽  
Mass Spectra ◽  
Thin Film Deposition ◽  
Eukaryotic Cell ◽  
Film Deposition ◽  
Plasma Polymer ◽  
Melaleuca Alternifolia ◽  
Naturally Occurring ◽  
Polymer Deposition ◽  
Positive Ion

If plasma polymer thin films are to be synthesised from sustainable and natural precursors of chemically heterogeneous composition, it is important to understand the extent to which this composition influences the mechanism of polymerisation. To this end, a well-studied monoterpene alcohol, terpinen-4-ol, has been targeted for a comparative study with the naturally occurring mix of terpenes (viz. Melaleuca alternifolia oil) from which it is commonly distilled. Positive ion mode mass spectra of both terpinen-4-ol and M. alternifolia oil showed a decrease in disparities between the type and abundance of cationic species formed in their respective plasma environments as applied plasma power was increased. Supplementary biological assay revealed the antibacterial action of both terpinen-4-ol and M. alternifolia derived coatings with respect to S. aureus bacteria, whilst cytocompatibility was demonstrated by comparable eukaryotic cell adhesion to both coatings. Elucidating the processes occurring within the reactive plasmas can enhance the economics of plasma polymer deposition by permitting use of the minimum power, time and precursor pre-processing required to control the extent of monomer fragmentation and fabricate a film of the desired thickness and functionality.

scholarly journals Emprego do óleo de Melaleuca alternifolia Cheel (Myrtaceae) na odontologia: perspectivas quanto à utilização como antimicrobiano alternativo às doenças infecciosas de origem bucal

2011 ◽  
Vol 13 (4) ◽  
pp. 492-499 ◽  
Author(s):  
A.C.M. Oliveira ◽  
A. Fontana ◽  
T.C. Negrini ◽  
M.N.M. Nogueira ◽  
T.B.L. Bedran ◽  
...  
Keyword(s):  
Tea Tree Oil ◽  
Melaleuca Alternifolia ◽  
Tea Tree

O interesse por medicamentos alternativos, principalmente daqueles provenientes de extratos naturais, tem aumentado nas últimas décadas. A Melaleuca alternifolia é um arbusto pertencente ao gênero Melaleuca, popularmente conhecida como "árvore de chá", cujo principal produto é o óleo essencial (TTO - tea tree oil), de grande importância medicinal por possuir comprovada ação bactericida e antifúngica contra diversos patógenos humanos. Em virtude da atividade terapêutica em diversas especialidades médicas, o TTO passou a ser empregado na área odontológica. Esta revisão de literatura foi realizada com o objetivo de discutir os ensaios já realizados com o TTO contra microrganismos relacionados à doença cárie, doença periodontal e problemas pulpares. O óleo de Melaleuca tem demonstrado boa ação antibacteriana in vitro contra microrganismos bucais, porém, pesquisas envolvendo o estudo do mecanismo de ação sobre as células microbianas ou estudos in vivo ainda são escassos e precisam ser realizados, já que esse produto pode ser útil na odontologia, seja na manutenção química da higiene ou prevenção de doenças bucais.

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