INTRODUCTION: Infants who have dysphagia (difficulty swallowing) are often recommended thickened oral liquids, which can be easier to swallow and allow infants to continue feeding orally. In the last decade, a xanthan gum thickener, SimplyThick®, was commonly used in preterm infants with dysphagia because of its ability to thicken breast milk. In 2011, the FDA cautioned against the use of SimplyThick in preterm infants, because of case reports of necrotizing enterocolitis (NEC), a condition where the bowel becomes inflamed and can lead to intestinal perforation or necrosis, systemic infection, the failure of multiple organs and death (Moore, 2016; Press Announcements, 2011). However, since the FDA warning, there have been no studies examining the prevalence of necrotizing enterocolitis in infants who consume SimplyThick. AIMS: Among infants at BCH who used SimplyThick and other thickeners at <1-year old between October 1st, 2012- December 31st, 2015 to 1) describe the patients’ clinical characteristics, including indications for SimplyThick and other thickeners and 2) determine the prevalence of necrotizing enterocolitis and adverse effects. METHODS: We performed a retrospective chart review in infants who had been seen at Boston Children’s Hospital, and prescribed or recommended SimplyThick thickener under the age of 1 (defined as from 0 up to and including 12 months) from October 1, 2012 to December 31, 2015. We collected information from electronic medical records and an existing quality improvement database of infants who had an abnormal modified barium swallow study. We collected information regarding clinical variables (e.g. patient age, patient sex, patient weight, gestational age at birth, clinical indications), nutritional information, and outcomes (presence of NEC or other adverse effects). These data were entered into a REDCap database and analyzed using SAS statistical software. RESULTS: We identified 20 cases of infants meeting our inclusion criteria. The duration of follow-up ranged from 6 months to 9.3 months. This follow up was either until the case turned 12 months of age or 6 months after the use of SimplyThick if the age started SimplyThick was greater than 6 months old. Mean corrected age at the time that SimplyThick was started was 6.2 months (range, 2.7 to 10.6 months), and 6 (30%) were born preterm at a gestational age ranging from 24.7 to 36.5 weeks. In cases that eventually stopped using SimplyThick (14 cases, 70%), SimplyThick was continued for a mean duration of 42.1 weeks (range 1.1 to 117.1 weeks). The most common indications for SimplyThick were aspiration documented on a modified barium swallow test, dysphagia and GERD. The most common reasons for discontinuation of SimplyThick were no longer requiring thickened feeds, or needing to stop oral feeding. No cases of necrotizing enterocolitis were reported among the 20 subjects. No adverse effects of SimplyThick were reported. CONCLUSION: Among 20 infants started on SimplyThick at 6.2 months and followed for up to 6 to 9.3 months, there were no cases of necrotizing enterocolitis. Further data collection is required to confirm these findings. / 2019-07-11T00:00:00Z

This project consists of two parts. One area of focus in the first part is understanding the interactions between a non-ionic, block copolymer type dispersant and hydrophobically-modified, ethoxylated urethane (HEUR) associative thickeners in water. The dispersant was mixed at various concentrations (0-2% by weight) with HEUR thickeners at 1% by weight concentration in the aqueous medium. This study is an integral part of our attempts to determine mechanisms of viscosity drop when colorant dispersions are added to latex tint base formulations thickened with associative thickeners. One of the HEUR thickeners is a product that has been available for over three decades (HEUR RM-825), whereas the other, HEUR RM-995 is a product recently introduced to minimize the tint base viscosity drop. The old HEUR showed a definitive viscosity maximum as a function of the dispersant concentration. However, the new generation product did not indicate a viscosity maximum within the dispersant concentration range studied; instead it showed a small, but linear increase in viscosity as dispersant level was increased. The next area of focus was on understanding the phase behavior, rheology, and interactions between polymer latex particles and a hydrophobically-modified, ethoxylated urethane (HEUR) associative thickener in water. The influence of the addition of surfactant in some of the systems was also studied. Several types of dispersions were made using two types of polymer latex, two associative thickeners, and two surfactants. Mixtures containing a small particle size acrylic latex and HEUR RM-825 exhibited the most interesting and complex phase behavior and rheology. In experiments wherein the latex particle volume fraction was kept constant, the addition of HEUR caused stable, followed by phase separated (syneresis) and stable mixtures as HEUR concentration was increased. The observed phase behavior is consistent with previous work reported by other investigators. However, detailed rheological data on systems such as these have not been reported, and this report presents the rheological data and correlate rheology with the phase behavior. The stable latex-HEUR mixtures at low HEUR levels show shear-thinning viscosity with well-defined low-shear Newtonian plateaus. As HEUR level is increased wherein syneresis is observed, erratic rheological profiles with shear-thickening are observed. When HEUR level is increased to a region where no syneresis is observed, low shear Newtonian plateaus re-appeared albeit at higher viscosities. The effects of added non-ionic and anionic surfactants on the dispersion are also studied. The main focus of the second part of this project is hybrid organic-inorganic photovoltaics. They have been the focus of recent studies due to their promising use in low-cost, flexible electronics, which can be processed from solution by printing and coating techniques. Understanding the rheology of these nanocomposites is essential in controlling shear flows during printing and application processes. Through rheology, we can determine different properties of poly(3-hexylthiophene) and dodecanethiol (DDT) modified zinc oxide (ZnO-DDT). Semiconductor nanowires such as ZnO have rigid or rod-like macromolecule geometry. Therefore, they have a tendency to have a lytropic liquid crystal (LLC) phase. LLC orders occur spontaneously in solutions with rod-shaped or anistropic objects from isotropic phase to nematic phase above a critical volume fraction which was studied using ZnO-DDT. The shear-induced alignment of the liquid crystal molecules was analyzed, serving as a guide for LLC printing. Furthermore by using this nanocomposite we are able to induced gelation using the ZnO-DDT nanowires in what is considered as a “good solvent,” dichlorobenzene. The kinetics of this gelation process was determined to be of first-order reaction kinetics. Furthermore, a mechanism of this gelation process is also presented.

Fatty acid intercalated layered double hydroxides were used as additives for Jojoba oil and polymer matrices. The first phase of the study was to intercalate carboxylic acids (C14 to C22). These were successfully intercalated into layered double hydroxides (LDHs), with the formula [Mg0.7Al0.3 (OH) 2](CO3)0. 15•0.5H2O. The one-pot synthesis consistently yielded a bilayer intercalated product for the range of acids employed. The intercalated anions had an orientation tilt angle of 55–63°, depending on the length of the fatty acid chain. However, there is an indication that the anion exchange process employed in this study is accompanied by probable dissolution and recrystallisation of the LDH. This is supported by the different growth habits and sizes of platelets observed through scanning electron microscopy (SEM). Moreover, the organo-LDH platelets were found to have varying MII/MIII compositions, ranging from 1.65 to 6, indicating that the one-pot synthesis yields an array of mixed metal hydroxides. Polymer composites, containing 5% and 10 wt.% of stearate intercalated layered double hydroxides (LDH-stearate) and neat layered double hydroxides (LDH-CO3), were prepared via melt-compounding to explore the use of LDHs as an additive. The stearate modified starting material was bilayer-intercalated clay. During melt compounding, excess stearates were released and the clay reverted to a monolayer-intercalated form. Comprehensive characterisation and study of the fatty acid-intercalated LDH showed that these organoclay hybrids exhibit thermotropic behaviour. This behaviour ultimately leads to the exudation of excess fatty acid. The exuded stearates were found to have lubricating and plasticising effects on the poly(ethylene-co-vinyl acetate) (EVA) and linear low density polyethylene (LLDPE) matrices. Strong hydrogen bond interactions between the chains of poly(ethyleneco- vinyl alcohol) (EVAL) and the clay platelet surfaces overwhelmed the lubrication effect and caused an increase in the melt viscosity of this matrix. The notched Charpy impact strength of this composite was almost double that of the neat polymer. It appears that this can be attributed to the ability of the highly dispersed and randomly oriented nanosized clay platelets to promote extensive internal microcavitation during impact loading. The creation of a large internal surface area provided the requisite energy dissipation mechanism. The study also considered fatty acid-intercalated LDH as an argillaceous mineral for potential use as a rheological additive in Jojoba oil. A minimum of 20 wt.% LDH in Jojoba oil formulation was found to be stable, i.e. it did not form separate layers on standing. The viscosity of the neat Jojoba oil demonstrated Newtonian behaviour, whereas the modified LDH/Jojoba oil formulation shear thinned, which is a typical non-Newtonian behaviour. Viscosity as a function of temperature showed complex rheological behaviour for the long chain fatty acids C16 to C22. The viscosity increase is assumed to be due to a combination of three events, which include the formation and changes of LDH microstructures within the oil, the loss of excess fatty acids into the oil matrix, and the formation of fatty acid crystal networks. Shear action also induced some delamination of the clay platelets. / Thesis (PhD(Eng))--University of Pretoria, 2012. / Chemical Engineering / unrestricted

A computer model for a general clarifier-thickener has been made and used for comparing different strategies for control of such dewatering units through simulations. The model builds on widely acknowledged theory for modelling clarifier-thickeners - discretizing the settling PDE into a set of ODEs so that concentrations of solids at discrete depths inside the unit become the states of the numerical model - and it was written in the Modelica language using the modelling and simulation environment Dymola. The work of estimating model parameters for themodel and comparing different control strategies was made looking at one particular clarifier-thickener at the company Boliden's mineral processing plant in Garpenberg. Among the control strategies that were compared in simulations were simple PID control and cascade control as well as more advanced control schemes. The simulations showed that the optimal control strategy to use is cascade control using rake torque as a secondary variable, which makes sense in particular for large thickeners such as the one mainly considered in this work.

En pigmentpasta består av ett antal olika kemikalier som alla bidrar med en specifik egenskap. Färgpigment, bindemedel och förtjockare är de tre komponenter som måste finnas i tryckpastan. Nackdelar med pigmenttryck är att trycket kan få dålig färg- och gnidhärdighet eftersom pigmentet inte tas upp av fibern utan binder till substratet genom ett bindemedel. Gnid- och tvätthärdighet bestäms nästan helt av vilket bindemedel som används. Vid pigmentryckning är bindemedlen som används oftast vattenbaserade syntetiska emulsionspolymerer.Syftet med detta examensarbete var att undersöka hur man kan optimera pigmenttryck och dess färg- och gnidhärdighet. En del av arbetet bestod av en laborationsdel där målet var att utvärdera hur olika fixeringsparametrar och olika bindemedel i en pigmentpasta kan påverka slutresultatet.I experimentet användes fyra olika bindemedel; Jaypol B2, Jaypol B3, Tubifast AS 40 och Tubifast ABN 10. För varje bindemedel gjordes två olika pastor. En pasta med 200 g/kg bindemedel och en pasta med 300 g/kg bindemedel. På proverna utfördes tester för gnidhärdighet och färghärdighet mot tvätt för att kunna utvärdera de olika bindemedlen. Testerna visade ett klart samband mellan en ökad koncentration av bindemedel i tryckpastan och en bättre färg- och gnidhärdighet. För att få bra egenskaper på ett pigmenttryck är det viktigt att det fixeras ordentligt. Om trycket inte fixeras tillräckligt kan inte bindemedlet binda fast pigmentet till textilen vilket ger dåliga härdigheter. Testerna visade att det inte finns någon optimal fixeringstid eller temperatur som gäller för alla tryck. Varje enskilt tryck kräver speciella förhållanden för att få så optimala egenskaper som möjligt. / <p>A pigment paste consists of a number of different chemicals that all contribute with a specific property. Color pigment, binder and thickener are the three components that must exist in the printing paste. The disadvantage of pigment printing is that the print may have poor color and crock fastness because the pigment is binding to the substrate by a binder and is not being absorbed by the fiber. Wash and crock fastness are determined almost entirely by which binder that are used. The binders that are used in pigment printing are usually water-based synthetic emulsion polymers. The purpose of this study was to examine how to optimize a pigment print and its color and crock fastness. The work included a laboratory test where the focus was to evaluate how different fixation parameters and different binders in a pigment paste can affect the final result. In the experiment four different binders were used; Jaypol B2, Jaypol B3, Tubifast AS 40, Tubifast ABN 10. For each binder two different pastes were made. One paste with 200 g/kg binder and one paste with 300 g/kg binder. Tests were made on the samples for crock fastness and color fastness to washing with the purpose to evaluate the various binders. The tests showed a clear correlation between an increased concentration of binder in the printing paste and a better color and crock fastness. In order to obtain good properties of a pigment print it is vital that the fixation is done properly. If the print is not adequately fixated the binder cannot attach the pigment to the fabric, resulting in poor fastness. The tests showed that there is no optimal fixation time or temperature for all prints. Each individual print requires special settings to obtain as optimal properties as possible</p><p>Program: Textilingenjörsutbildningen</p>

Made available in DSpace on 2014-06-11T19:29:12Z (GMT). No. of bitstreams: 0 Previous issue date: 2008-10-30Bitstream added on 2014-06-13T18:38:58Z : No. of bitstreams: 1 peixoto_gj_me_ilha.pdf: 3639925 bytes, checksum: e19f2ebbc3c46fda991b86aa7db634e8 (MD5) / No Brasil, existe um problema comum à maioria das comunidades onde o abastecimento público de água é realizado com água superficial e há a necessidade de tratamento. No processo de tratamento ocorre a formação de resíduos na forma de lodo, o qual periodicamente necessita ser descartado do processo. Exceção feita a algumas Estações de Tratamento de Água (ETA), em nível nacional, todas despejam esses resíduos, de forma bruta, sem nenhum tratamento, em corpos de água. O presente trabalho foi realizado com o objetivo de encontrar solução adequada para destinar, de forma correta, o lodo produzido pela ETA da cidade de Presidente Prudente, operada pela Companhia de Saneamento Básico do Estado de São Paulo (SABESP). O estudo baseou-se na premissa em aplicar o lodo da ETA na Estação de Tratamento de Esgotos (ETE), no adensador por gravidade existente. E, para tanto, foi montada uma ETE Piloto, com a qual foram realizadas as simulações de aplicação de cargas de 2000 mg/L e 4000 mg/L de lodo de ETA A avaliação do desempenho da unidade piloto foi conseguida por meio de monitoramento analítico de parâmetros como: pH, temperatura, oxigênio dissolvido, alcalinidade, DBO, DQO, Fósforo, Nitrogênio, sólidos dissolvidos, totais, fixos e voláteis, turbidez, Índice Volumétrico de Lodo (IVL) e Teor de Lodo (TL). Os resultados mostraram que a carga de 2000 mg/L de lodo de ETA no adensador por gravidade, pode ser realizada sem causar problemas. No entanto, com carga de 4000 mg/L, constatou que as aplicações progressivas de lodo devem ser melhor pesquisadas / In Brazil, very common problem to the biggest part of the communities, where the public water supply is realized using the surface water, and needs to pass by the water treatment plant (WTP). In the treatment process, a residue formation in the form of sludge occurs, which periodically needs to be discarded out the process. Except some WTP, on a nation level all they discarded these residues, in brutal way and without treatment, in watercourses. In this work was realized with the objective to finding an adequate solution to properly allocate the sludge produced in the Water Treatment Plant (WTP) from Presidente Prudente, which is operated by SABESP. This study was based in premise to apply the WTP sludge in the Wastewater Treatment Plant (WWTP), in the thickener by an existing gravity. And however, it was built a WWTP Pilot plant where were realized the simulations of applying dosages of 2000 mg/L and 4000 mg/L of WTP sludge. The evaluation of the performance of the pilot unit was gotten by analytical monitoring of many parameters as: pH, temperature, dissolved oxygen, alkalinity, BOD, COD, phosphorus, nitrogen, dissolved solids, fixed and volatile ones, turbidity, Sludge Volumetric Index (IVL) and sludge concentration (TL). The results showed that the application of 2000 mg/l of WTP sludge in the WWTP gravity thickener can be realized without problems. On the other hand the application of 4000 mg/l showed that progressive applications of sludge have to be better researched

Surfactants and Thickeners are both additives used in fully-formulated waterborne coatings to provide colloidal stability, thickening, and other functionality. The behavior of each ingredient in a coating must be understood and controlled to maintain colloidal stability as well as balance other desired properties of the liquid coating and the dry paint film. In this work, quaternary systems of Water-Latex-Thickener-Surfactant were investigated to further the understanding of their behavior in coatings. The thickener used was a well characterized, hydrophobically-modified, ethoxylated urethane (HEUR) with two C18 terminal hydrophobes and 795 average repeat units of ethylene oxide as the hydrophilic spacer. Two latexes, a hydrophobic butyl acrylate/styrene and a hydrophilic butyl acrylate/methyl methacrylate, each containing a small amount of methacrylic acid monomer were used. Six different surfactants, three non-ionic and three-anionic, were used. By maintaining the concentrations of latex and HEUR thickener as constants and varying the surfactant concentration, effects of the surfactant loading on rheology were determined. As concentration of surfactant increases, a characteristic shear-thickening maximum associated with bridging of latex particles by the HEUR thickener was seen to shift to higher shear rates; surfactants at all concentrations studied, except SDS, lowered the viscosities within the low shear rate region. Dynamic viscoelastic measurements shed further light into the behavior of the mixtures. The results will be explained based on surfactant and latex surface polarities and the competitive adsorption between the v surfactant and HEUR hydrophobes, and other interactions between surfactants and thickeners.

Rheology modifiers such as hydrophobically-modified ethoxylated urethane (HEUR)thickeners are included in waterborne latex coatings to optimize shear-rate dependent viscosity and other rheological properties. While these HEUR polymers are commonly used in industry, the complex chemical interactions that contribute to rheological properties are still not completely understood. Prior work in this area has focused on understanding latex-HEUR and latex-surfactant-HEUR interactions that affect rheological properties. Additionally, studies have been previously conducted to understand the relaxation mechanisms of complex interactions present in HEUR-thickened waterborne latex coatings under various dynamic conditions. The objective of this work is to extend the experimental work to fully-formulated coatings and determine the effects of additional ingredients in a fully-formulated system. Coating formulations were prepared with a target 90 KU (Kreb Units) viscosity, having 0.23wt% HEUR. The pigment volume concentration (PVC) and non-volatiles by volume (NVV) were kept constant at 19.87% and 30.47%, respectively. An analysis of phase stability (presence or absence of syneresis), flow sweep (10-2 to 103 s-1), oscillatory strain (10-2 to 102 %), and oscillatory frequency (10-2 to 102 Hz) data was carried out in an attempt to determine connections among these properties. Furthermore, brief comparisons were made with previous results on latex-HEUR and latex-HEUR-surfactant systems that utilized the same HEUR thickener and latex used in this study. In the fully-formulated system, 0.23wt% HEUR was found to be in excess of what is needed to saturate latex surfaces. This HEUR level is less than half of the level needed to saturate latex surfaces in simpler latex-HEUR systems in previous studies. Fully-formulated coatings, in addition to having TiO2 and other ingredients are more crowded than the previous systems. It appeared that a depletion flocculation mechanism dominated at low surfactant concentrations for fully-formulated systems in this study as evident from syneresis; large HEUR aggregates appear to build enough osmotic pressure to drive aggregation of latex and pigment particles resulting in depletion flocculation. At increasing surfactant levels, the depletion flocculation mechanism was negated allowing the associative HEUR bridge networks to dominate and stabilize the system. Phase stability for fully-formulated systems in this study were associated with Newtonian viscosity plateaus on flow sweeps, strain hardening on oscillatory strain sweeps, and formation of high frequency moduli plateaus in frequency sweeps. Further increase of surfactant concentration appeared to disrupt the stable latex-HEUR network due to competitive adsorption of surfactant on latex particles, resulting in syneresis from bridging flocculation. Possible correlations between phase stability and high relaxation times were seen, although further analysis of relaxation time data and simulations will need to be carried out to better understand the behavior of HEUR in fully-formulated systems.

ABSTRACT THE EFFECTS OF COLOR CONCENTRATES ON THE RHEOLOGY OF TINT BASES Douglas James Herrick Waterborne coatings are formulated with a number of different ingredients; water, latex polymers, pigments, surfactants, dispersants, defoamers, biocides, coalescing aids, and rheology modifiers or thickeners. Rheology modifiers are necessary in order to improve the physical properties of the coating before, during, and after application to a substrate. There are two kinds of rheology modifiers used in waterborne coatings; associative thickeners and non-associative thickeners. Coatings formulated with associative thickeners are quite sensitive to coating variations; the slightest change in the formulation has profound effects on the rheology of the coating. The opposite is true for coatings formulated with non-associative thickeners, where the rheology of the coating is not affected by minor changes in the formulation. The rheological properties of coatings are most influenced by the latex, thickener, and surfactant components of the coating. Previous studies have shown that the most ideal balance of rheological properties come from using associative thickeners. However, when waterborne coatings with associative thickeners are tinted with colorants containing high levels of surfactants they exhibit a significant decrease in viscosity. This change in viscosity results in poor sag resistance, poor brush loading, and may also cause a reduction in tint strength of the coating. In this work, the effect of tinting paints with six different colorants on the viscosity of the paint was studied for four different paint formulations: a pastel base and a deeptone base formulated with hydroxyethylcellulose (HEC-type) non-associative thickeners, and a pastel base and a deeptone base formulated with hydrophobically-modified, ethoxylated polyurethane (HEUR-type) associative thickeners. Gloss values and tinting strengths were obtained in accordance with ASTM methods D523-08 and D4838-88. In addition, dynamic stress and frequency sweeps were taken in order to study the effect of colorant addition on the viscoelastic properties of each sample. Colorant addition had little to no effects on the viscosity of the bases formulated with HEC thickeners, while there was a dramatic decrease in viscosity upon colorant addition to the bases with HEUR thickeners. Similar results were observed in the viscoelastic property analysis: little to no effects on the elastic and viscous moduli was seen with the tinted coatings formulated with the non-associative thickeners, while both the elastic and viscous moduli decreased for the coatings formulated with associative thickeners. A few of the deeptone bases showed increased moduli upon tinting compared to the parent deeptone base. The addition of colorant resulted in a decrease in tinting strength and an increase in gloss for those samples with associative thickeners, while the opposite was found for those samples with non-associative thickeners.

Made available in DSpace on 2015-04-17T14:49:16Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 1272716 bytes, checksum: d982a13cfede81d5211e1cb2bb68ab85 (MD5) Previous issue date: 2011-09-29 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / The dairy sector is seeking to produce foods with functionality as main attribute. In this context, a market to be explored is that of dairy goats, since goat milk is a food alternative of excellent dietary and nutritional characteristics. However, due to its physical and chemical characteristics, the milk produces a soft clot after fermentation, giving a product with poor texture. The objective of this study was to develop a goat milk fermented by the action of probiotic strains Lactobacillus acidophilus LA-5, Bifidobacterium BB-12 and Streptococcus thermophilus added of the prebiotic ingredient inulin and thickeners starch and gelatin and to evaluate its physicochemical composition susceptibility to syneresis, bacterial counts and sensory analysis on the first day of preparation and after 15 days of refrigerated storage. The tests were elaborated according to a factorial experimental design with three levels and three central points totaling eleven trials. The minimum and maximum levels were selected based on legal limits, literature data and preliminary tests considering the sensory quality evaluated by tasters. Starch, gelatin and inulin represented the variable ingredients and the fixed ingredients were: milk powder, sugar, milk and yeast. The process steps were milk weighing, mix preparation, heat treatment, cooling, direct inoculation, incubation, cooling, clot breaking, filling and storage. The developed formulations met the legal requirements for fermented milk regarding protein, fat and acidity average values. The starch and gelatin levels, combinations and interaction with inulin were sufficient to promote a significant decrease in the serum separation rate. Most formulations reached the minimum number of microorganisms required by legislation for fermented milk. The sensory properties appearance, color and consistency achieved high scores and aroma and flavor scored around five. In general, no significant changes were observed in the counts of probiotic bacteria and sensory quality of the newly developed formulations in relation to formulations after 15 days of refrigerated storage. The addition of probiotic bacteria and prebiotic ingredient inulin improved the potential of goat milk to provide beneficial effects to human health. / O setor lácteo busca produzir alimentos tendo como atributo principal a funcionalidade. Nesse contexto um mercado a ser explorado é o de lácteos caprinos, uma vez que, o leite de cabra representa uma opção alimentar de excelentes qualidades nutricionais e dietéticas. Contudo, em razão de suas particularidades físicas e químicas, após a fermentação do leite, gera um coágulo macio, conferindo um produto pobre em textura. O objetivo deste trabalho foi desenvolver um leite de cabra fermentado mediante ação das cepas probióticas Lactobacillus acidophilus LA-5, Bifidobacterium BB-12 e da bactéria Streptococcus thermophilus, adicionado do ingrediente prebiótico inulina e dos espessantes amido e gelatina bem como avaliar sua composição físico-química, susceptibilidade à sinérese, contagem das bactérias e análise sensorial no primeiro dia da elaboração e após 15 dias de armazenado refrigerado. Os ensaios foram elaborados segundo um planejamento experimental do tipo fatorial com três níveis e três pontos centrais totalizando onze ensaios. Os níveis mínimos e máximos foram escolhidos com base nos limites legais, dados da literatura e testes preliminares considerando a qualidade sensorial emitida por degustadores. O amido, gelatina e inulina representaram os ingredientes das variáveis e os ingredientes fixos foram: leite em pó, açúcar e fermento lácteo. As etapas do processo foram pesagem do leite, preparo da mistura, tratamento térmico, resfriamento, inoculação direta, incubação, resfriamento, quebra do coágulo, envase e armazenamento. As formulações desenvolvidas atenderam as especificações legais para um leite fermentado quanto aos valores médios de proteínas, gordura e acidez. Os teores e combinações de amido e gelatina e suas interações com inulina foram suficientes para promover uma diminuição significativa no índice de separação do soro. A maioria das formulações atingiu o número mínimo necessário de micro-organismos estabelecido na legislação para um leite fermentado. As propriedades sensoriais aparência, cor e consistência alcançaram notas altas e o aroma e sabor obtiveram notas em torno de cinco. De um modo geral não houve alteração significativa na enumeração das bactérias probióticas e na qualidade sensorial das formulações recém-elaboradas em relação às formulações após 15 dias de armazenamento refrigerado. As adições das bactérias probióticas e do ingrediente prebiótico inulina poderão ampliar, ainda mais, a potencialidade do leite caprino em prover efeitos benéficos à saúde das pessoas.