Inibição do desenvolvimento de fungos fitopatogênicos por detergente derivado de óleo da mamona (Ricinus communis)

Takano, Eunice Hitomi; Busso, Cleverson; Gonçalves, E. A. L.; Chierice, Gilberto Orivaldo; Catanzaro-Guimarães, S. A.; Castro-Prado, Marialba Avezum Alves de

doi:10.1590/s0103-84782007000500003

Cited by 8 publications

(6 citation statements)

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“…It is noteworthy that no difference between treatments was found in the count of C. albicans and S. aureus , two important species found in the denture biofilm. Studies have reported that the detergent properties of R. communis cause damage to the cell wall, resulting in loss of the constituents of cytoplasm and subsequent cell death 12 , 30 . These action mechanisms however need to be further investigated.…”

Section: Discussionmentioning

confidence: 99%

Clinical trial for evaluation of Ricinus communis and sodium hypochlorite as denture cleanser

et al. 2017

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The development of opportunistic infections due to poor denture hygiene conditions justified the search for effective hygiene protocols for controlling denture biofilm. Objective This study evaluated Ricinus communis and sodium hypochlorite solutions in terms of biofilm removal ability, remission of candidiasis, antimicrobial activity, and participant satisfaction.Material and Methods It was conducted a controlled clinical trial, randomized, double-blind, and crossover. Sixty-four denture wearers with (n=24) and without candidiasis (n=40) were instructed to brush (3 times/day) and immerse their dentures (20 min/day) in different storage solutions (S1 / S2: 0.25% / 0.5% sodium hypochlorite; S3: 10% R. communis; S4: Saline).The trial period for each solution was seven days and a washout period of seven days was used before starting the use of another solution. The variables were analyzed at baseline and after each trial period. The biofilm of inner surfaces of maxillary dentures was disclosed, photographed, and total and dyed areas were measured (Image Tool software). The percentage of biofilm was calculated. Remission of candidiasis was assessed by visual scale and score were attributed. Antimicrobial activity was assessed by the DNA-Checkerboard hybridization method. Patient satisfaction was measured using a questionnaire.Results S1 (4.41±7.98%) and S2 (2.93±5.23%) were more effective then S3 (6.95±10.93%) in biofilm remotion(P<0.0001). All solutions were different from the control (11.07±11.99%). S3 was the most effective solution in remission of candidiasis (50%), followed by S1 (46%). Concerning antimicrobial action, S1/S2 were similar and resulted in the lowest microorganism mean count (P=0.04), followed by S3. No significant differences were found with patient’s satisfaction.Conclusions 10% R. communis and 0.25% sodium hypochlorite were effective in biofilm removal, causing remission of candidiasis and reducing the formation of microbial colonies in denture surfaces. All solutions were approved by patients.

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Section: Discussionmentioning

confidence: 99%

Clinical trial for evaluation of Ricinus communis and sodium hypochlorite as denture cleanser

et al. 2017

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“…é nativa da África tropical e atualmente, é cultivada em regiões tropicais e subtropicais do mundo (ALLAN et al, 2008). O óleo da mamona possui alto valor econômico em razão da sua versatilidade de aplicação na indústria, podendo ser utilizado na composição de cosméticos, de produtos farmacêuticos, de óleos lubrificantes, além de polímeros (ALLAN et al, 2008;SEVERINO et al, 2009;TAKANO et al, 2007). A versatilidade do óleo de mamona se deve à estrutura química do ácido ricinoléico (INTERNATIONAL CASTOR OIL ASSOCIATION -ICOA, 2008).…”

Section: Introductionunclassified

Descritores quantitativos na estimativa da divergência genética entre genótipos de mamoneira utilizando análises multivariadas

Neto¹,

Leal²,

Gonçalves³

et al. 2010

Rev. Ciênc. Agron.

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Resumo-O conhecimento da diversidade é de fundamental importância para o melhoramento de plantas, pois além de identificar combinações que possam expressar elevada heterose, aumenta a perspectiva de seleção de segregantes superiores, com a potencialização da variabilidade no cruzamento entre genótipos divergentes. Diversos métodos multivariados podem ser aplicados no estudo da diversidade e a escolha baseia-se na precisão desejada pelo pesquisador, na facilidade da análise e na forma como os dados foram obtidos. A presente pesquisa teve como objetivos avaliar a diversidade de onze genótipos de mamoneira (Ricinus communis L.) nas regiões Norte e Noroeste do Estado do Rio de Janeiro e investigar o potencial do uso dos genótipos avaliados em futuros programas de melhoramento. Foram avaliados seis descritores quantitativos (altura de planta, comprimento total dos racemos, comprimento da região com frutificação do racemo, comprimento da região sem frutificação no racemo, número de frutos por racemo e produção total), utilizando-se delineamento de blocos ao acaso com quatro repetições. Houve diferenças significativas entre os tratamentos para todas as características avaliadas. As análises multivariadas (UPGMA, Tocher e Variáveis Canônicas) foram similares formando três grupos. Os genótipos Nordestina, IAC 80, Al Guarany, Paraguaçu, Mirante e IAC 226 revelaram-se promissores para as regiões avaliadas. Em programas de intercruzamentos, recomendam-se as combinações Al Guarany x Nordestina, Al Guarany x IAC 80 e Nordestina x IAC 80. Palavras-chave-Ricinus communis L. Análise multivariada. Genética vegetal. Plantas-melhoramento genético.

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“…Castor oil, a natural derivative of the Ricinus communis plant, has a long history of therapeutic use. [54][55][56][57] It possesses recognised anti-inflammatory, 58 anti-nociceptive, 59 antioxidant, [60][61][62] anti-microbial, 63,64 insecticidal properties, 65 with a good safety and tolerance profile. 66,67 Recently, castor oil has found application within commercial ophthalmic eyedrop preparations, proving effective in counteracting tear film lipid insufficiency and tear film instability, and showing potential in managing dry eye disease secondary to meibomian gland dysfunction, without reported side effects.…”

Section: Treatmentmentioning

confidence: 99%

Therapeutic potential of castor oil in managing blepharitis, meibomian gland dysfunction and dry eye

Sandford

Müntz

Craig

2021

Clinical and Experimental Optometry

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The multifactorial pathogenesis and interrelationship of blepharitis, meibomian gland dysfunction and dry eye disease poses challenges to any therapeutic approach. Current treatments are mostly palliative, with success limited by perceived inefficacy and poor patient compliance. Castor oil, a natural derivative of the Ricinus communis plant, is widely used as an emollient in cosmetics and personal care products, drug delivery systems and wound dressings. Castor oil is deemed safe and tolerable, with strong anti-microbial, anti-inflammatory, anti-nociceptive, analgesic, antioxidant, wound healing and vaso-constrictive properties. Its main constituent, ricinoleic acid, has a bipolar molecular structure that promotes the formation of esters, amides and polymers. These can supplement deficient physiological tear film lipids, enabling enhanced lipid spreading characteristics and reducing aqueous tear evaporation. Studies reveal that castor oil applied topically to the ocular surface has a prolonged residence time, facilitating increased tear film lipid layer thickness, stability, improved ocular surface staining and symptoms. This review summarises the properties, current uses of, and therapeutic potential of castor oil in managing ocular surface disease. The biochemical, medicinal actions of castor oil are explored from the perspective of ocular surface pathology, and include microbial and demodectic over-colonisation, inflammatory and oxidative processes, as well as clinical signs and symptoms of dryness and discomfort.

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Inibição do desenvolvimento de fungos fitopatogênicos por detergente derivado de óleo da mamona (Ricinus communis)

Cited by 8 publications

References 14 publications

Clinical trial for evaluation of Ricinus communis and sodium hypochlorite as denture cleanser

Clinical trial for evaluation of Ricinus communis and sodium hypochlorite as denture cleanser

Descritores quantitativos na estimativa da divergência genética entre genótipos de mamoneira utilizando análises multivariadas

Therapeutic potential of castor oil in managing blepharitis, meibomian gland dysfunction and dry eye

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