The characterization of the semi‐solid W/O/W emulsions with low concentrations of the primary polymeric emulsifier

Vasiljević, Dragana; Vuleta, Gordana; Primorac, Marija

doi:10.1111/j.1467-2494.2004.00247.x

Cited by 21 publications

(17 citation statements)

References 5 publications

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“…The use of polymeric surfactants in multiple emulsions has been superior to monomeric emulsifiers because the monomeric types tend to migrate from the inner interface and from the outer interface and/or solubilize in one of the phases (Magdassi et al, 1985;Benichout et al, 2007;Vasiljevic et al, 2005;Vasiljevic et al, 2006). The results enable us to affirm that, for the preparation of physically stable multiple emulsions, a 5% (w/w) concentration of polymeric surfactant was sufficient.…”

Section: Characteristics Of Multiple Emulsionsmentioning

confidence: 62%

Multiple emulsions containing amazon oil: açaí oil (Euterpe oleracea)

Ferrari¹,

Rocha‐Filho

2011

Rev. bras. farmacogn.

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Abstract:The aim of this work was to formulate O/W/O multiple emulsions containing açaí oil as a model system and to evaluate their physical stability and in vivo Sun Protection Factor (SPF). Multiple emulsions are complex dispersion systems, known also as, "emulsions of emulsions". These emulsion systems, have significant potential in the cosmetic industry. Euterpe oleracea Mart., Arecaceae, popularly known in Brazil as "açaí", is an economically important plant. Açaí oil has been used as antioxidant and as anti-inflammatory activities. The multiple emulsions were prepared using a two-step procedure. The investigated formulations were characterized and their stability over time was evaluated by preliminary and accelerated stability. O/W/O multiple emulsions containing the same concentration of sunscreens with and without açaí oil were evaluated by the International Sun Protection Factor Test Method. The samples containing 70% (w/w) of primary emulsion, 5% (w/w) PEG-30-dipolyhydroxystearate, 10% (w/w) of açaí oil and 5% (w/w) of sucrose polybehenate have been found to be stable. The rheological measurements revealed that the samples exhibited non-Newtonian pseudoplastic flow behavior and thixotropy. To conclude, no statistical difference could be observed on the in vivo SPF to both multiple systems with or without açaí oil.

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Section: Characteristics Of Multiple Emulsionsmentioning

confidence: 62%

Multiple emulsions containing amazon oil: açaí oil (Euterpe oleracea)

Ferrari¹,

Rocha‐Filho

2011

Rev. bras. farmacogn.

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“…[16] If an emulsion persists centrifuged at 3,750 rpm in 5 hours will show resistance to the effects of gravity for approximately 1 year. On conversion, then obtained that centrifugation speed with 2500 rpm for 5 h is equivalent to the effect of gravity is approximately 8 months, while for the speed 3000 rpm, is equivalent to the effect of gravity is approximately 10 months.…”

Section: Discussionmentioning

confidence: 99%

Formulation of tomato extracts (Solanum lycopersicum L.) as a sunscreen lotion

Sopyan¹,

Tiassetiana²

2017

Natl J Physiol Pharm Pharmacol

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Background: Tomato (Solanum lycopersicum L) has sunscreen efficacy consisting of lycopene which can provide ultraviolet (UV) irradiation in sunlight and protect skin from UV B induces photodamage. Objective: This work aims to formulate attractive, effective, and stable sunscreen lotion from tomato extract. Materials and Methods: Phytochemical screening and measurement of sun protection factor (SPF) values were performed first on tomato fruit extract. Thus, lotion formulations and SPF lotion measurements have been added tomato extract. Observations of pH, viscosity, frozen liquefaction cycle to see globule size, and centrifugation were performed to see the stability of the lotion preparation, and the latter was a qualitative test for the preparation of lotions compared with the extract. Results: The concentration of tomato extract on sunscreen lotion which has SPF value close to SPF 15 from extract is 1% and 1.5% tomato extract with SPF value 18.84 and 22.24. Physical observation of the lotion is done by organoleptic observation, pH and viscosity measurement, centrifugation, and freezing of liquefaction and qualitative test shows a stable profile for 28 days of storage. Conclusion:The results showed that the sunscreen lotion produced had good physical quality for 28 days of storage.

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“…Based on microscopic observation, we verified that the smaller and more homogeneous the globules, the greater a formulation's tendency toward stability. Emulsions with a large number of small cells are highly efficient as pharmaceuticals and/or cosmetics (36).…”

Section: Ensaios De Estabilidadementioning

confidence: 99%

Development and in vivo evaluation of the moisturising potential of cosmetic formulations containing Babassu (Orbignya phalerata Martius) oily extract

Vieira¹,

Sales²,

Cerqueira-Coutinho³

et al. 2017

BBR

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Biomedical and Biopharmaceutical Research J o r n a l d e I n v e s t i g a ç ã o B i o m é d i c a e B i o f a r m a c ê u t i c a Development and in vivo evaluation of the moisturising potential of cosmetic formulations containing Babassu (Orbignya phalerata Martius) oily extract AbstractThe objective of this study was to use oily extracts of the species Orbignya phalerata Martius (Babassu) from three ecological regions in Maranhão state, Brazil: Forest (BBF), Coast (BBC) and Lowlands (BBL) to develop cosmetic formulations. Formulations with 10 wt% of Babassu oily extracts were characterised regarding their stability for 30 days (separation of phases after centrifugation, pH, density, viscosity and droplets size distribution) and evaluation of efficacy in vivo by cutaneous biometry. Results indicated that the formulations were physically stable and presented pseudo-plastic fluid behavior as evaluated by rheology. Concerning the in vivo efficacy assays, the formulation containing BBL increased the hydration of the volunteers'skin when compared to a formulation containing only a commercial standard moisturising ingredient, without altering the skin pH. BBL showed to be a promising ingredient to cosmetics, behaving as an excellent moisturiser likely because it contains the highest amounts of lauric, myristic and oleic acids that present great emollient potential.Keywords: Cosmetic formulations, cutaneous biometry, in vivo evaluation of moisturising effect, Orbignya phalerata Martius, vegetal oily extract. ResumoO objetivo deste estudo foi utilizar extratos oleosos da espécie Orbignya phalerata Martius (Babaçu) de três regiões ecológicas do Estado do Maranhão (Brasil): Mata dos Cocais (BBF), Litoral (BBC) e Baixada Maranhense (BBL) para desenvolver formulações cosméticas. As formulações com 10% em peso de extratos oleosos de Babaçu foram caracterizadas quanto à sua estabilidade durante 30 dias (separação de fases após centrifugação, pH, densidade, viscosidade e distribuição de tamanho das gotículas) e avaliação da eficácia in vivo por biometria cutânea. Os resultados indicaram que as formulações foram fisicamente estáveis e apresentaram comportamento de fluido pseudoplástico, avaliado por reologia. Em relação aos ensaios de eficácia in vivo, a formulação contendo BBL aumentou a hidratação da pele dos voluntários quando comparada com uma formulação contendo apenas um ingrediente hidratante padrão comercial, sem alterar o pH da pele. BBL mostrou ser um ingrediente promissor para cosméticos, comportando-se como um excelente hidratante, provavelmente porque contém as maiores quantidades de ácidos láurico, mirístico e oleico que apresentam grande potencial emoliente.Palavras chave: Formulações cosméticas, biometria cutânea, avaliação in vivo do efeito hidratante, Orbignya phalerata Martius, extrato oleoso vegetal.

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The characterization of the semi‐solid W/O/W emulsions with low concentrations of the primary polymeric emulsifier

Cited by 21 publications

References 5 publications

Multiple emulsions containing amazon oil: açaí oil (Euterpe oleracea)

Multiple emulsions containing amazon oil: açaí oil (Euterpe oleracea)

Formulation of tomato extracts (Solanum lycopersicum L.) as a sunscreen lotion

Development and in vivo evaluation of the moisturising potential of cosmetic formulations containing Babassu (Orbignya phalerata Martius) oily extract

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