Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 34
Primeira ... 12 ... Última
Imagem não selecionada

Imprime registro no formato completo
Alginate-pomegranate peels' polyphenols beads: effects of formulation parameters on loading efficiency BJPS
Zam,Wissam; Bashour,Ghada; Abdelwahed,Wassim; Khayata,Warid.
Calcium alginate beads containing pomegranate peels' polyphenol extract were encapsulated by ionic gelation method. The effects of various formulation factors (sodium alginate concentration, calcium chloride concentration, calcium chloride exposure time, gelling bath time maintaining, and extract concentration) on the efficiency of extract loading were investigated. The formulation containing an extract of 1 g pomegranate peels in 100 mL distilled water encapsulated with 3 % of sodium alginate cured in 0.05 M calcium chloride for 20 minutes and kept in a gelling bath for 15 minutes was chosen as the best formula regarding the loading efficiency. These optimized conditions allowed the encapsulation of 43.90% of total extracted polyphenols and 46.34 % of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Pomegranate/polyphenols/microencapsulation; Calcium alginate beads/microencapsulation; Microencapsulation; Polyphenols; Natural antioxidants/microencapsulation.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502014000400741
Imagem não selecionada

Imprime registro no formato completo
Antimicrobial activity of microcapsules with aqueous extract of chambá (Justicia pectoralis Jacq) Rev. Ciênc. Agron.
Guimarães,Thays Lima Fama; Silva,Larissa Morais Ribeiro da; Lima,Carolline de Brito; Magalhães,Francisco Ernani Alves; Figueiredo,Evânia altina Teixeira de.
ABSTRACT To ensure the antimicrobial activity of the aqueous extract of chambá, it is essential to protect its bioactive compounds. The objective was to preserve its characteristics, aiming to provide the food industry with a natural antimicrobial. Three microcapsule formulations made with maltodextrin and cyclodextrin were developed, both including the aqueous extract of chambá leaves dried through lyophilization. The aqueous extract was initially submitted to in vivo toxicity analysis using zebrafish and the microcapsules were characterized through studies of morphology, hygroscopicity, water solubility, particle size, zeta potential, color determination, microencapsulation efficiency and antimicrobial activity. The aqueous extract of chambá was not...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aqueous extraction; Chambá leaves; Microencapsulation; Zebrafish; Microdilution.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902020000200412
Imagem não selecionada

Imprime registro no formato completo
Aplicação de amido modificado e extrato de soja na microencapsulação de óleo de canola por coacervação complexa. Repositório Alice
NASCIMENTO, A. B..
Dissertação (Mestre em Aproveitamento de Recursos Naturais) - Universidade Estadual do Ceará, Centro de Ciências e Tecnologia. 2023. Orientador: Profa. Dra. Roselayne Ferro Furtado.
Tipo: Teses Palavras-chave: Polímero catiônico; Polímero aniônico; Encapsulamento; Anionic polymer; Alimento; Microencapsulation.
Ano: 2023 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1157717
Imagem não selecionada

Imprime registro no formato completo
Assembly of HE800 exopolysaccharide produced by a deep-sea hydrothermal bacterium into microgels for protein delivery applications ArchiMer
Zykwinska, Agata; Marquis, Melanie; Sinquin, Corinne; Cuenot, Stephane; Colliec-jouault, Sylvia.
Assembly of biopolymers into microgels is an elegant strategy for bioencapsulation with various potential biomedical applications. Such biocompatible and biodegradable microassemblies are developed not only to protect the encapsulated molecule but also to ensure its sustained local delivery. The present study describes the fabrication of microassemblies from a marine HE800 exopolysaccharide (EPS), which displays a glycosaminoglycan (GAG)-like structure and biological properties. HE800 EPS was assembled, through physical cross-linking with divalent ions, into microgel particles and microfibers using microfluidics. The microparticle morphology was highly affected by the polysaccharide concentration and its molecular weight. A model protein, namely Bovine...
Tipo: Text Palavras-chave: Marine exopolysaccharide; Microgel particles; Microfibers; Microfluidic; Microencapsulation; Protein release.
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00311/42175/41475.pdf
Imagem não selecionada

Imprime registro no formato completo
Beta-carotene: Beta-carotene microencapsulation process. Infoteca-e
MENDONCA, S..
Optimized microencapsulation process of beta-carotene extract by spray drying technique to enable the addition of beta-carotene in hydrophilic systems (food and pharmaceutical preparations) and to provide greater stability during processing and storage.
Tipo: Folders Palavras-chave: Beta-carotene; Microencapsulation; Hydrophilic interactions; Renewable resources.
Ano: 2021 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1133090
Imagem não selecionada

Imprime registro no formato completo
Blending of pressed vegetable oils from pomegranate seeds and soybean to increase functional lipids consume. Repositório Alice
SILVA-JAMES, N. K.; NOGUEIRA, R. I.; FREITAS, S. P..
Tipo: Separatas Palavras-chave: Functional lipids; Pomegranate seeds oil; Soybean oil; Microencapsulation.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1091992
Imagem não selecionada

Imprime registro no formato completo
Characterization and evaluation of sensory acceptability of ice creams incorporated with beta-carotene encapsulated in solid lipid microparticles Ciênc. Tecnol. Aliment.
LIMA,Juliana Gobbi de; BRITO-OLIVEIRA,Thais Carvalho; PINHO,Samantha Cristina de.
Abstract The feasibility of incorporating beta-carotene-loaded solid lipid microparticles (BCSLM) into vanilla ice creams was investigated, through the physico-chemical characterization and evaluation of sensory acceptability of the products products. The BCSLM were produced with palm stearin as the lipid phase, hydrolyzed soy protein isolate as the surfactant, and xanthan gum as the thickener. The results showed similar values of proximate composition, total soluble solids, pH, and overrun for all formulations. On the other hand, colorimetric evaluations showed that the ice cream produced with partial substitution of artificial additives by BCSLM containing alpha-tocopherol presented a more intense color, while in the product with non-encapsulated...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Lipid particles; Ice cream; Palm stearin; Microencapsulation; Beta-carotene.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612016000400664
Imagem não selecionada

Imprime registro no formato completo
Characterization and shelf life of β-carotene loaded solid lipid microparticles produced with stearic acid and sunflower oil BABT
Gomes,Graziela Veiga de Lara; Borrin,Thais Ribeiro; Cardoso,Lisandro Pavie; Souto,Eliana; Pinho,Samantha Cristina de.
Solid lipid microparticles were tested as microencapsulation systems for protecting β-carotene from degradation. Blends of long-chain (C18) solid lipids (70% stearic acid) and sunflower oil (30%) were used to produce lipid microparticles encapsulating the carotenoid. Polysorbate 80 (4%) was employed to stabilize the stearic acid microparticles. The concentration of β-carotene was monitored using spectrophotometry, the particle size distribution was measured by laser diffraction, the crystal structure was determined by wide angle X-ray diffraction (WAXD), and the thermal behaviour was characterized by differential scanning calorimetry (DSC) over a period of seven months. All of the systems had an average particle size smaller than 5 µm. To avoid β-carotene...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Solid lipid microparticles; Β-carotene; Microencapsulation.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132013000400017
Imagem não selecionada

Imprime registro no formato completo
Chemical stability of microparticles elaborated with hydroethanolic extract from Euterpe edulis co-product. Repositório Alice
RIBEIRO, L. de O.; BRITO, M. O. de; FREITAS, S. P.; MATTA, V. M. da; JUNG, E. P.; KUNIGAMI, C. N..
SIAN. 17 e 18 de junho de 2019. Oral. R001.
Tipo: Anais e Proceedings de eventos Palavras-chave: Juçara; Microencapsulation; Spray drying.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1110015
Imagem não selecionada

Imprime registro no formato completo
Cross-linked coacervates of cashew gum and gelatin in the encapsulation of pequi oil. Repositório Alice
ALEXANDRE, J. DE B.; BARROSO, T. L. C. T.; OLIVEIRA, M. DE A.; MENDES, F. R. DA S.; COSTA, J. M. C. DA; MOREIRA, R. DE A.; FURTADO, R. F..
Tipo: Artigo de periódico Palavras-chave: Microencapsulamento; Coacervação complexa; Reticulação química; Acidotânico; Eficiência de encapsulamento; Complex coacervation; Tannic acid; Encapsulation efficiency; Microencapsulation; Cross-linking reagents.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1118297
Imagem não selecionada

Imprime registro no formato completo
Cross-linked coacervates of cashew gum and gelatin in the encapsulation of pequi oil Ciência Rural
Alexandre,Joana de Barros; Barroso,Tiago Linhares Cruz Tabosa; Oliveira,Marília de Albuquerque; Mendes,Francisco Rogênio da Silva; Costa,José Maria Correia da; Moreira,Renato de Azevedo; Furtado,Roselayne Ferro.
ABSTRACT: Pequi oil is rich in bioactive compounds which can be encapsulated to increase protection against extrinsic environmental factors. A delayed degradation of pequi oil may occur by using microencapsulation technology, in addition to masking unpleasant flavors and aromas. Complex coacervation is a technique based on the electrostatic interaction between two oppositely charged biopolymers which form a matrix complexed around an agent of interest. However, cross-linking the particles is often necessary in order to make them more rigid. The objective of this research was to produce and characterize pequi oil microparticles in a cashew gum (CG) and gelatin (GE) matrix cross-linked with tannic acid. Cross-linked pequi oil microparticles were produced by...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Microencapsulation; Complex coacervation; Cross-linking; Tannic acid; Encapsulation efficiency.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019001200753
Imagem não selecionada

Imprime registro no formato completo
Development, characterization and viability study of probiotic microcapsules produced by complex coacervation followed by freeze-drying Ciência Rural
Silva,Thaiane Marques da; Barin,Juliano Smanioto; Lopes,Eduardo Jacob; Cichoski,Alexandre José; Flores,Erico Marlon de Moraes; Silva,Cristiane de Bona da; Menezes,Cristiano Ragagnin de.
ABSTRACT: Technique of complex coacervation was used to produce microcapsules of Lactobacillus acidophilus La-5 encapsulated in gelatin and gum arabic which were then freeze-drying. Microcapsules were characterized using scanning electron and optical microscopy, and resistance of probiotics was evaluated during release into a simulated gastrointestinal tract and storage at different temperatures. The complex coacervation process produced microcapsules with a high encapsulation efficiency (77.60% and 87.53%), ranging from 127.14-227.05 μm with uniform distribution. Microencapsulation was an efficient approach to achieve significant protection of probiotics against simulated gastrointestinal conditions compared with free cells. Encapsulation also improved...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Microencapsulation; Lactobacillus acidophilus; Gelatin; Gum Arabic.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000700752
Imagem não selecionada

Imprime registro no formato completo
Efecto de la vitamina E en la función digestiva y composición de la leche de bovinos alimentados con un suplemento de ácido linoleico conjugado protegido. Colegio de Postgraduados
Ramírez Mella, Mónica.
La presente tesis se compone de la Introducción General, Revisión de literatura, tres capítulos que engloban la investigación, objeto de este estudio, y Conclusiones y Recomendaciones Generales. El Capítulo 1 consiste en un artículo de revisión de literatura que enmarca la importancia de proteger ingredientes y/o compuestos del ataque de microrganismos a nivel ruminal, donde la nanotecnología ocupa un papel importante. En el Capítulo 2 se discute el efecto de la vitamina E en la composición de la leche de vacas en pastoreo que recibieron un suplemento de ácido linoleico conjugado microencapsulado, así como un análisis económico del mismo. El Capítulo 3 consiste en el estudio del efecto de la vitamina E en la fermentación ruminal y la digestión de...
Palavras-chave: Nanotecnología; Microencapsulación; CLA; Grasa en leche; Vacas en pastoreo; Nanotechnology; Microencapsulation; Fat milk; Grazing dairy cows; Ganadería; Doctorado.
Ano: 2012 URL: http://hdl.handle.net/10521/1743
Imagem não selecionada

Imprime registro no formato completo
Effect of added prebiotic (Isomalto-oligosaccharide) and Coating of Beads on the Survival of Microencapsulated Lactobacillus rhamnosus GG Ciênc. Tecnol. Aliment.
SIANG,Sing Chee; WAI,Lai Ka; LIN,Nyam Kar; PHING,Pui Liew.
Abstract The study aimed to encapsulate Lactobacillus rhamnosus GG (LGG) with the selected prebiotic, using co-extrusion technology with a poly-L-lysine (PLL) coating and evaluate probiotic survival in simulated gastrointestinal conditions. Selection of ideal prebiotic was conducted using inulin, fructo-oligosaccharide (FOS) and isomalto-oligosaccharide (IMO) and its optimal concentration to be incorporated in microencapsulation was determined. Microcapsules without coating (S1: no prebiotic and S3: with prebiotic) and with coating (S2: no prebiotic and S4: with prebiotic) produced were evaluated based on its physical properties and survival in simulated gastrointestinal environment. The IMO with a concentration of 3.0% (w/v) was selected due to its best...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Microencapsulation; Probiotic; Co-extrusion; Isomalto-oligosaccharide; Poly-L-lysine; Lactobacillus.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019000600601
Imagem não selecionada

Imprime registro no formato completo
Effect of cellulose acetate phthalate and polyethylene glycol on physical properties and release of theophylline from microcapsules BJPS
Hussain,Amjad; Mumtaz,Ahmad Mehmood; Arshad,Muhammad Sohail; Abbas,Nasir; Latif,Abida; Shamim,Rahat; Bukhari,Nadeem Irfan; Hussain,Khalid.
ABSTRACT The present study describes the development of theophylline microcapsules by a non-solvent addition method and the effect of plasticizer addition on microencapsulation. The release was studied in distilled water and the data were analysed by various mathematical models for determining the mechanism of release. Prepared microcapsules were found to be spherical, free flowing and having more than 80% entrapped drug. The polymer - cellulose acetate phthalate and plasticizer - polyethylene glycol was considered to be affecting the properties of microcapsules including drug release (time for 50% drug release, T50). The formulation with the highest proportion of polymer and without plasticizer (F3) showed the slowest release with T50 = 4.3 h, while the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Theophylline/microcapsules; Microencapsulation; Cellulose acetate phthalate; Polyethylene glycol; Microcapsules/mechanism of release; Drugs/release..
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502016000100004
Imagem não selecionada

Imprime registro no formato completo
Effects of storage conditions on phytochemical and stability of purple corn cob extract powder Ciênc. Tecnol. Aliment.
KAPCUM,Chutikarn; URIYAPONGSON,Juntanee.
Abstract Recently, purple corn cob has been gaining popularity for a dietary supplement and natural colorant. However, phytochemicals in waxy purple corn cob (WPC) are likely degraded during storage; thus, the microencapsulation by spray drying was used for lengthening those compounds. This work focused on the phenolic and anthocyanin content and antioxidant activity (AOA) in WPC extract microcapsules by hydroxypropyl beta-cyclodextrin (HPβCD) during storage at 4 and 30 °C for 60 days. The results revealed that only peonodin-3-glucoside at 30 °C was found as a higher decrease than 4 °C. Pelagonidin-3-glucoside and AOA were found more stable at both storage temperatures; however, the increase of protocatechuic acid and hydroxybenzoic acid were observed...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Waxy purple corn cob; Microencapsulation; Phenolics; Anthocyanins; Hydroxypropyl beta-cyclodextrin.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612018000500301
Imagem não selecionada

Imprime registro no formato completo
Encapsulation of Lactobacillus acidophilus and different prebiotic agents by external ionic gelation followed by freeze-drying Ciência Rural
Poletto,Gabriela; Fonseca,Bruna de Souza; Raddatz,Greice Carine; Wagner,Roger; Lopes,Eduardo Jacob; Barin,Juliano Smanioto; Flores,Erico Marlon de Moraes; Menezes,Cristiano Ragagnin de.
ABSTRACT: The aim of this study was to investigate the influence of the addition of prebiotics rice bran, inulin and hi-maize, on the survival of Lactobacillus acidophilus in alginate microparticles obtained by external ionic gelation followed by freeze-drying. The microparticles size ranged from 127.5μm to 234.6μm. Microparticles added from the different prebiotics demonstrated an increase in the protection of the microorganism, which presented greater viability against the gastrointestinal simulation. As for storage under different conditions, rice bran treatment at 25ºC kept probiotics viable for 30 days. Under storage conditions -18°C and 7°C, treatments containing prebiotics hi-maize and rice bran maintained viable probiotic microorganisms for a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Microencapsulation; Probiotics; Rice bran; Inulin; Hi-maize.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000200751
Imagem não selecionada

Imprime registro no formato completo
Estabilização de óleos vegetais poli-insaturados (Punica granatum e Glicine max) por microencapsulamento em spray dryer. Repositório Alice
JAMES, N. K. da S..
O beneficiamento da romã para produção de sucos produz como resíduos cascas e sementes. As sementes possuem um óleo especial com propriedades anti-inflamatórias e terapêuticas, rico em ácido púnicico, um ácido graxo único. Apesar de altamente sensível à oxidação, o óleo de sementes de romã tem sido muito estudado na prevenção e tratamento de diversas doenças. A soja, utilizada integralmente na formulação de alimentos, tem papel importante no desenvolvimento agroindustrial brasileiro, e seu óleo, rico em ácido linoleico, é o óleo alimentar mais consumido no Brasil. A mistura de óleos vegetais é uma tendência recente na tentativa de disponibilizar lipídeos com propriedades bioativas e equilibrar a ingestão de ácidos graxos poli-insaturados, essenciais para o...
Tipo: Separatas Palavras-chave: Microencapsulamento; Compostos bioativos; Spray dryer; Pomegranate seed oil; Heat transport study; Óleo de semente de romã; Aproveitamento de resíduos; Estudo do transporte de calor.; Óleo; Semente; Romã; Waste management.; Microencapsulation.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1106669
Imagem não selecionada

Imprime registro no formato completo
Evaluation of some residual bioactivities of microencapsulated Phaseolus lunatus protein fraction with carboxymethylated flamboyant (Delonix regia) gum/sodium alginate Ciênc. Tecnol. Aliment.
Sandovai-Peraza,Mukthar; Betancur-Ancona,David; Gallegos-Tintoré,Santiago; Chel-Guerrero,Luis.
Recent studies have shown the beneficial effect of peptides, an unexploited source could be Phaseolus lunatus being an important raw material for those functional products in order to improve their utilization. In addition to improve the beneficial effect of bioactive peptides the microencapsulation could be a way to protect the peptides against the environment to which they are exposed. P. lunatus protein fraction (<10 kDa of weight) was encapsulated using a blend of carboxymethylated flamboyant gum (CFG) and sodium alginate (SA) at different concentrations of CaCl2 and hardening times. After in vitro digestion of microcapsules the residual activity, in the intestinal system, both inhibition of agiotensin-converting enzyme (I-ACE) and antioxidant...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Microencapsulation; Flamboyant gum; Antioxidant activity; ACE-I activity.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612014000400006
Imagem não selecionada

Imprime registro no formato completo
Goma do cajueiro (Anacardium occidentale): caracterização, microencapsulamento do ?-bisabolol e valação do efeito cicatrizante em camundongos. Repositório Alice
RODRIGUES FILHO, J. M. S..
Co-orientador: Dra. Ana Paula Dionisio
Tipo: Teses Palavras-chave: Goma do cajueiro; Microencapsulamento; Atividade Cicatrizante; Bisabolol; Atividade anti-inflamatória; Cashew gum; Wound Healing; Microencapsulation; Anti-inflammatory activity.
Ano: 2021 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1138514
Registros recuperados: 34
Primeira ... 12 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional