Complex Coacervation
Mostrando 1-12 de 17 artigos, teses e dissertações.
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1. Characterization and optimization of oil microcapsules from Attalea phalerata Mart. for the preservation of bioactive compounds
This study aimed microencapsulating Attalea phalerata Mart. oil, containing high carotenoid and phenolic compounds content, with Arabic gum and gelatin, using the complex coacervation method. The yield, efficiency, morphology of microcapsules and content of phenolic compounds, carotenoids and antioxidant activity in different processes conditions (concentrat
Braz. J. Pharm. Sci.. Publicado em: 20/12/2019
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2. Cross-linked coacervates of cashew gum and gelatin in the encapsulation of pequi oil
RESUMO: O óleo de pequi é rico em compostos bioativos, os quais podem ser encapsulados para aumentar a proteção a fatores extrínsecos. A tecnologia de microencapsulamento, além de retardar a degradação do composto ativo, possibilita mascarar aromas e sabores indesejáveis. A coacervação complexa é uma técnica baseada na interação eletrostátic
Cienc. Rural. Publicado em: 13/12/2019
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3. Synthesis and characterization of microalgae fatty acids or Aloe vera oil microcapsules
Abstract It’s proposed a single methodology for the encapsulation of Aloe vera oil or microalgae fatty acids using the complex coacervation process between gelatin and gum arabic. Although a very recurrent method, it is not trivial to establish a single coacervation methodology to encapsulate different compounds. The optimal synthesis conditions, that resu
Polímeros. Publicado em: 04/11/2019
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4. Development, characterization and viability study of probiotic microcapsules produced by complex coacervation followed by freeze-drying
RESUMO: A técnica de coacervação complexa foi utilizada para a produção de microcápsulas contendo Lactobacillus acidophilus La-5 em gelatina e goma arábica seguida de secagem por liofilização. As microcápsulas foram caracterizadas por microscopia óptica e eletrônica de varredura, assim como a resistência dos probióticos frente à liberação �
Cienc. Rural. Publicado em: 10/07/2019
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5. Erratum: Microencapsulation of pequi pulp oil by complex coacervation
Rev. Bras. Frutic.. Publicado em: 18/06/2018
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6. DEVELOPMENT AND VALIDATION OF ANALYTICAL METHOD FOR PALM OIL DETERMINATION IN MICROCAPSULES PRODUCED BY COMPLEX COACERVATION
The microencapsulation of palm oil may be a mechanism for protecting and promoting the controlled release of its bioactive compounds. To optimize the microencapsulation process, it is necessary to accurately quantify the palm oil present both external and internal to the microcapsules. In this study, we developed and validated a spectrophotometric method to
Quím. Nova. Publicado em: 2016-01
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7. Evaluating conditions for the formation of chitosan/gelatin microparticles
Chitosan/gelatin microparticles were prepared by complex coacervation. Three chitosan (CH) samples, with different acetylation degrees and intrinsic viscosities, were used together with commercial gelatin (G) samples. Microparticles formation was investigated at various CH/G ratios, within the pH range of 3.5 to 6.0. Reactions were carried out at 40 and 60 �
Polímeros. Publicado em: 2009-06
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8. Efeito da reticulação induzida pela transglutaminase e o glutaraldeido sobre as propriedades das microparticulas obtidas por coacervação complexa / Effect of transglutaminase and glutaraldehyde induced crosslinking on properties of microparticles obtained by complex coacervation
Microparticles were produced by complex coacervation using gelatin and gum Arabic as wall forming materials and a mixture of paprika oleoresin-soy oil (1:10) in a quantity that correspond to 50% of wall material mass. The emulsions production order, gelatin/ paprika oleoresin-soy oil or gum Arabic/paprika oleoresin:soy oil, the crosslinking of the microparti
Publicado em: 2009
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9. Production. characterization, stability and application of microcapsules of lycopene / Produção, caracterização, estabilidade e aplicação de microcapsulas de licopeno
O interesse no licopeno cresceu em anos recentes, devido aos estudos que o associam à diminuição do risco de desenvolvimento de doenças cardiovasculares e câncer. Porém, devido ao seu alto grau de insaturação, este carotenóide é propenso à isomerização e oxidação durante o processamento e a estocagem, dificultando sua utilização na indústri
Publicado em: 2009
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10. Extração e caracterização de gelatina de pele de tilapia e aplicação como agente encapsulante de oleo de salmão em microparticulas obtidas por coacervação complexa. / Extraction and characterization of fish skin gelatin and application as encapsulate agent of salmon oil in microparticles obtained by complex coacervation.
Two great challenges in the pisciculture production chain are the use of by-products generated during the fish processing and the production of more attractive microparticles for fish larvae feeding. The aim of this work was to extract and to characterize gelatin from tilapia skin to use it as a substitute of mammalian gelatins in the formation of matrix of
Publicado em: 2008
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11. Complexo pectina/caseína: aspectos básicos e aplicados / Pectin/casein complex: basic and functional aspects
Os sistemas de liberação de fármacos são parte integrante da investigação farmacêutica. Grande ênfase tem sido dada à utilização de polímeros hidrofílicos naturais como carreadores devido às vantagens inerentes a seu baixo custo, biocompatibilidade e segurança de uso. Os objetivos principais deste trabalho foram a preparação e avaliação de
Publicado em: 2007
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12. Estudo dos parametros fisico-quimicos envolvidos na formação de microcapsulas produzidas por coacervação complexa. / Study of the physical-chemical parameters in the microcapsules formation produced for complex coacervation.
Microencapsulation is a technology used as a potential tool in the protection of a product and the modulation of its core release. Currently, studies in the area of microparticles and controlled release are considerably advanced and a variety of techniques and products are available, among them differents processes for atomization (spray drying, spray coolin
Publicado em: 2006