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Showing 1 to 20 of 75 for “"Microencapsulation"”.
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Novel techniques for microencapsulation of probiotic bacteria
Microencapsulation of living cells such as probiotic bacteria can be used for the protection of the cells from harsh conditions such as low pH and mechanical stress in the digestive system. In this thesis we demonstrate various novel strategies to microencapsulate living yeast cells as a model for …
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Microencapsulation studies with P(HB-HV) polymers
Microencapsulation processes, based upon the concept of solvent evaporation, have been employed within these studies to prepare microparticles from poly--hydroxybutyrate homopolymers and copolymers thereof with 3-hydroxyvalerate [P(HB-HV) polymers]. Variations in the preparative technique have …
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Interfacial cationic polymerization and its application in microencapsulation
Direct polymerization on the solid surfaces of three crystalline biologically active drugs has been carried out in this study to provide a thin polymer film (capsule wall) around the crystals. This polymer film would act as a release controlling layer of the encapsulated crystals into a surrounding …
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Matrix-assisted concentration and microencapsulation of lime juice
MATRIX-ASSISTED CONCENTRATION AND MICROENCAPSULATION OF LIME JUICE Department of Food Science and Human Nutrition University of Illinois at Urbana-Champaign, 2011 Graciela W. Padua, Adviser Lime juice is widely used in American and international cuisine for its characteristic flavor and high taste …
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Microencapsulation of Bacillus calmette-guerin for use in cancer immunotherapy.
Microencapsulation of Bacillus calmette-guerin for use in cancer immunotherapy.
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Development of environmentally benign microencapsulation with polymer microspheres and liposomes
Microencapsulation means applying a shell-like coating to encapsulate the contents of interest in a particle form with a size range of few micrometers or below. In this work, aqueous liposome systems and polymer based encapsulation of fine particles in supercritical CO_2 were studied. Compared to …
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A nutritional evaluation and optimisation of infant foods using microencapsulation
… recent relevant legislation and to explore the microencapsulation of docasahexaenoic acid (DHA) to optimise the nutrient content of infant food products. New protocols were developed for the quantitative analysis of certain key nutrients including High Pressure Liquid Chromatography (HPLC) – …
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Microencapsulation of tributyrin to improve sensory qualities and intestinal delivery
Microencapsulation is commonly used in the food industry to provide functional and sensory benefits to a variety of compounds. Tributyrin (TB), a source of butyric acid, is characterized by a highly bitter taste and negative odor attributes. Its use in the maintenance of intestinal health and …
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Stabilization of resveratrol through microencapsulation and incorporation into food products
… of bioactive compounds by way of utilizing microencapsulation, which will increase the consumption of these healthful ingredients. This research utilized resveratrol, a polyphenol found in red grapes and wine, as a model compound which encapsulation was applied in order to overcome the light …
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Design and evaluation of novel microencapsulation technologies to enhance delivery of Ciclosporin
… objective of this thesis is to evaluate novel microencapsulation technologies in the production of size-specific and target-specific drug-loaded particles. The first part of this thesis describes the utility of PDMS and silicon microfluidic flow focusing devices (MFFDs) to produce PLGA-based …
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Microencapsulation of reactive amines and isocyanates and their application to self-healing systems
Microcapsule-based self-healing systems enable repair of crack damage in polymers and polymer matrix composites. Existing self-healing chemistries are limited by relatively weak chemical bonding between the matrix and the healing material, temperature stability, and side reactions that degrade the …
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Evaluation of the microencapsulation performance by spray drying with a three-fluid nozzle
Microencapsulation is an effective method to entrap core material with a wall material, which can increase the stability, control delivery, and mask off-notes of the core material. Spray drying is one of the most commonly used microencapsulation techniques in the food industry. Both material …
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Microencapsulation of an omega-3 polyunsaturated fatty acid source with polysaccharides for food applications
… the integrity of these unstable compounds. Microencapsulation of ω3 PUFA sources is one means of improving their stability. In this work, ω3 PUFA microcapsules were prepared by spray drying with chitosan and blends of chitosan, high-amylose starch, and pullulan as wall materials. The primary …
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Supercritical fluid spray processes for microencapsulation and formation of submicron aqueous dispersions of pharmaceutical compounds
Precipitation with a Compressed Fluid Antisolvent (PCA) and Rapid Expansion from Supercritical Solution (RESS) are two processes based on supercritical fluids that are capable of producing submicron particles. Novel variations of these basic processes have been examined to produce stable particles …
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Development of a novel 3-fluid nozzle for spray-dried microencapsulation of quercetin in zein and sodium caseinate
Microencapsulation is a powerful technology for stabilizing compounds of interest to the food industry that are difficult to incorporate into food matrices for a variety of reasons. Microfluidic assembly of microcapsules has recently been studied as a means for producing extremely uniform and small …
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Use Of Cryoprotectants, Prebiotics And Microencapsulation of Bacterial Cells in Improving the Viability of Probiotic Organisms in Freeze-Dried Yoghurt
… by 1.42 log during four weeks of storage at 4°C. Microencapsulation of probiotic organisms was assessed to determine whether further improvements in viability were possible. Microencapsulation with calciumalginate using the emulsion technique was found to improve the viability of the combined …
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Effect of atomization on viability of microencapsulated probiotics
… of probiotics in food matrices. Therefore, microencapsulation using spray drying has been used as an effective method for protecting probiotics from harsh environments and controlled release at desired conditions increasing the applicability of probiotics in various food products. Although …
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Methods for Zinc Ion Release from Orthodontic Cement Pastes
… to release zinc from orthodontic cement pastes. Microencapsulation and bioactive zinc glass were the two technologies studied. The cements were tested in neutral and acidic conditions as well as in the presence of competing ions. Results demonstrated competing ions cause zinc release profiles to …
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Sonochemically-produced proteinaceous microspheres
The field of microencapsulation has found increasing application since its industrial debut in carbonless copying paper some fifty years ago. Microencapsulated materials are found in a wide variety of technical, agricultural, food, and household products. There have been many methods developed for …
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