Composição De Ácidos Graxos Em Óleos Vegetais E O Uso Potencial No Tratamento Deferidas

Alves, Anselmo Queiroz; Silva, V. A.; Góes, Alexandre José Silva; Silva, M. S.; Godinho, C. C.; Oliveira, Gilson Gomes; Alves, Antonio José

doi:10.17648/ebit-2017-85662

Cited by 3 publications

(3 citation statements)

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“…Considering the physical-chemical characteristics of each oil (which were not assessed in this study), it can be noted that coconut oil has a high degree of saturation, allowing for more effective permeation. However, in copaiba and andiroba oils, low levels of long-chain saturated fatty acids are found in their composition, coupled with higher amounts of mono-and polyunsaturated fatty acids 4 . These characteristics may hinder permeation due to the properties of the fatty acid chains (mainly their hydrophobic nature and their tendency to form lipid bilayers, that act as barriers) 8 .…”

Section: Resultsmentioning

confidence: 99%

“…The chemical composition of copaiba oleoresin (Copaifera spp) is defined as a mixture of light terpenes, comprising 72% sesquiterpenes, and heavy terpenes, consisting of 28% diterpenic acids (copalic acid) [10][11][12]. The identified fatty acids are as follows: 22.4% saturated fatty acids, 42.7% monounsaturated fatty acids, and 34.66% unsaturated fatty acids 4 .…”

Section: Introductionmentioning

confidence: 99%

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Confocal Raman spectroscopy study of hair fiber: oil permeation

Grassi,

Martin,

Medeiros Neto

et al. 2024

Biomedical Vibrational Spectroscopy 2024: Advances in Research and Industry

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With the various forms of hair treatments, the challenge is to find oils that can better penetrate the hair fiber. The study aims to analyze the permeation of copaiba, andiroba, and coconut oil into human hair. Methods: Five untreated hair fibers were considered as a control, and five treated fibers for each oil were tested. The treatment consisted of depositing 10 µl of the test oil on the five fibers. Raman spectra were collected before and after 30 minutes of treatment with the oils, from the surface to a depth of 40 µm. After identifying the peaks, the concentration of the permeated oil was determined. Results: The calculation of the area under the curve revealed the average permeation profiles in the hair fiber. The quantification of the concentration of permeated oil showed proximity between copaiba oil (30.14 a.u.) and coconut oil (27.85 a.u.). However, andiroba oil, despite penetrating the deeper layer, had a lower concentration compared to other oils. Conclusion: This study demonstrated the efficiency of copaiba, coconut, and andiroba oils in terms of permeation in hair fibers, providing valuable information for the development of products capable of reaching specific layers of hair fibers.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Confocal Raman spectroscopy study of hair fiber: oil permeation

Grassi,

Martin,

Medeiros Neto

et al. 2024

Biomedical Vibrational Spectroscopy 2024: Advances in Research and Industry

View full text Add to dashboard Cite

show abstract

“…Mesmo que consideremos que a composição das fibras capilares seja semelhante, as características individuais entre cada uma, bem como outros aspectos como forma de obtenção, Considerando as características físico-química de cada óleo (avaliações não realizadas neste estudo), podemos notar que o óleo de coco possui alto grau de saturação, o que lhe permite uma melhor permeação. Ao analisar o óleo de andiroba, percebe-se baixa quantidade de ácido graxo saturado de cadeia longa em sua composição, associados a quantidades mais elevadas de ácidos graxos mono e poliinsaturados 16 , o que pode dificultar a permeação devido as características das cadeias de ácido graxo. 17…”

Section: Discussionunclassified

Efeito do óleo de andiroba X óleo de coco na fibra capilar

Grassi,

Pinto M. Neto

et al. 2023

VICV

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A fibra capilar sofre alterações em sua estrutura, causando a perca do óleo natural, deixando o cabelo vulnerável. A indústria de cosméticos tem interesse em encontrar óleos que permeiam a fibra capilar, utilizando a técnica espectroscopia Raman Confocal. O objetivo deste estudo foi analisar a permeação do óleo de andiroba na fibra capilar comparado com o óleo de coco. Foram avaliadas cinco fibras capilares sem óleo como controle do estudo e cinco fibras tratadas foram padronizadas para cada um dos óleos testados (andiroba e coco). As análises foram realizadas utilizando um espectrômetro Raman confocal com um laser com fonte de excitação em 785nm. O sinal Raman foi captado por um detector CCD. A segunda derivada foi feita utilizando o software OriginPro® 8.5 para melhor identificar os picos de permeação de óleo. Em suma os resultados mostram que o óleo de andiroba teve uma permeação até as camadas mais profundas, porém a quantidade de óleo permeado foi inferior ao óleo de coco,

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Unveiling the potential of confocal raman spectroscopy in the analysis of oil permeation in human hair fibers

Grassi,

Neto

et al. 2024

Res. Biomed. Eng.

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Composição De Ácidos Graxos Em Óleos Vegetais E O Uso Potencial No Tratamento Deferidas

Cited by 3 publications

References 0 publications

Confocal Raman spectroscopy study of hair fiber: oil permeation

Confocal Raman spectroscopy study of hair fiber: oil permeation

Efeito do óleo de andiroba X óleo de coco na fibra capilar

Unveiling the potential of confocal raman spectroscopy in the analysis of oil permeation in human hair fibers

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