One-step preparation of high internal phase emulsions using natural edible Pickering stabilizers: Gliadin nanoparticles/gum Arabic AuthorLi Ma, Liqiang Zou, David Julian McClements, Wei Liu Year2020 SourceFood Hydrocolloids LanguageEnglish Pages105381 nutrition2012Gliadin nanoparticlesGum Arabic 16 more High internal phase emulsionsPickering emulsions β-caroteneBioaccessibilityLUMiFugeLFLUMiSizerLSPickering high internal phase emulsions (HIPEs) were prepared using a simple one-step process that involved blending an aqueous solution (15 vol%) containing gliadin nanoparticles (GNP2 wt%) and gum arabic (GA012and 4 wt%) with corn oil (85 vol%). The impact of GA addition into HIPEs on the microstructurerheologystabilityphotodegradation and bioaccessibility of the encapsulated β-carotene was determined. More details Edition100 Internal reference2012 Open publication →
Particle Detection and Characterization for Biopharmaceutical Applications: Current Principles of Established and Alternative Techniques AuthorJulia Gross-Rother, Michaela Blech, Eduard Preis, Udo Bakowsky, and Patrick Garidel Year2020 SourcePharmaceutics LanguageEnglish Pages1112-1160 2353LUMiSizerLSparticle detection; particle characterization; emerging particle techniques; protein aggregates; particle quantification; biopharmaceuticals 8 more psdpsaACanalytical centifugationanalytical photocentrifugeproteinspharmaceuticalviruses More details Edition12 Internal reference2353 Open publication →
Personal Care Composition With Increased Vapor Release AuthorBingham, Stephen; Jackova, Barbara; Hampton, Joshua; Newlon, Jason William; Kochhar, Jaspreet Singh;Khanolkar, Jayant; Fornear, Aline Year2020 SourceUnited States Patent Application 20200188293 LanguageEnglish LUMiSizerLS2648Provided herein is a personal care composition that can exhibit an increased vapor release while maintaining physical stability and texture. The personal care composition can contain from about 35% to about 90% petrolatum 24 more from about 20% to about 50% of an olfactory compositionand a gelling agent mixture. The gelling agent mixture can contain dibutyl lauroyl glutamidedibutyl ethylhexanoyl glutamideand a solvent selected from the group consisting of pentylene glycolpropylene glycolhexylene glycol3-methyl-13-butanediol2-butanediol15-pentanedioland combinations thereof. The personal care composition can exhibit a vapor release of from about 35 mg to about 300 mg at 8 hours and can have an Instability Index of less than about 0.8. homepersonal carecosmeticshpcThe Procter & Gamble CompanyInstability Index Test MethodInstability analysis is carried out on the samples to establish relative potential for separation of the olfactory composition oils from the petrolatum material based on applied centrifugal forces. The result is an indication of syneresis.The Instability Index Test Method is conducted as follows. A dispersion analyzersuch as a LUM LUMiSizer® (LUM GmbHBerlinGermany) or equivalentis used in this method. The dispersion analyzer is interfaced with a personal computer loaded with the associated LUM softwareSEPViewthat collects and analyzes the data inputted from the instrument. P&G More details Internal reference2648 Open publication →
Phagendisplay und Hochdurchsatz- Sequenzierung: Neue Werkzeuge zur Identifizierung Peptid-basierter Materialbinder AuthorCarmen Juds Year2020 SourceDissertation LanguageGerman Pages1-170 2611LUMiFracLFracEignung der Peptide als Haftvermittler 6 more Anwendung der PP‐bindenden Peptide als wasserbasierte Haftvermittlerumweltfreundlichewasserbasierte Systeme für Polyolefinoberflächen bisher kaum realisiert und daher sehr gefragtBricht die Probe zwischen der Trägerplatte und der Folie kann keine Aussage über den Einfluss des Peptids auf die Haftfestigkeit getroffen werden. Um dies zu verhindern wurde an dieser Stelle ein Klebstoff mit höherer Haftfestigkeit auf PP verwendet (LOCTITE® 460). Zusätzlich wurde die Corona‐ behandelte Folienseite mit einem Primer vorbehandelt. Anschließend konnte die unbehandelte Folienseite mit einer Peptid‐Stammlösung inkubiert und anschließend zum Entfernen überflüssigen Peptids gewaschen werden (2). Im letzten Schritt wurde der Teststempel mit einer definierten Menge des Klebstoffs (LOCTITE® 496) versehen und unter Druck auf die Peptidbeschichtete PP‐Folie geklebt (3). Nach einer Aushärtung über 24 Stunden wurde die Haftfestigkeit der Proben in der LUMIFrac ®‐Zentrifuge geprüft. Charakterisierung ausgewählter Peptide in Hinblick auf haftvermittelnde Eigenschaften durch ZugversucheDie Untersuchung einer möglichen Anwendung dieser Polypropylen‐bindenden Peptidsequenz als wasserbasierter Haftvermittler erfolgte in Zugversuchen. Nach der Peptidbeschichtung wurden in Kombination mit einem kommerziellen Klebstoff signifikant höhere Haftfestigkeiten auf Polypropylen im Vergleich zur unbeschichteten Oberfläche erreicht. Im Vergleich zu einem kommerziell erhältlichen Primer erreicht das Peptid etwa 50% der Haftfestigkeit des Primers. Der bedeutende Vorteil des Peptids ist die Beschichtung ausgehend von einem vollständig wasserbasierten Systemwährend technische Primer in toxischen organischen Lösungsmitteln wie Heptan auf die Oberfläche aufgetragen werden. Sowohl die Bindungskräfte als auch der haftverbessernde Effekt des Peptids LYARDVSRYWHV ist sequenzabhängig. More details LocationMathematisch-Naturwissenschaftlichen Fakultät der Humboldt-Universität zu Berlin, Germany Internal reference2611 Open publication →
Phase separation behavior of whey protein isolate particle dispersions in the presence of xanthan AuthorAlev Emine İNCE COŞKUN Year2020 SourceTurkish Journal of Chemistry LanguageEnglish Pages1314-1326 2604LUMiFugeLFLUMiSizer 12 more LSColloidal particledepletion interactionflocculationrod-like depletantsize fractionationDetermination of turbidity profilesStability of dispersions against sedimentationfoodnutritionbiochemistrypharmaceutical More details Edition44 Internal reference2604 Open publication →
Physical stability of model emulsions based on ethyl cellulose oleogels AuthorIwona Szymańska, Anna Żbikowska, Małgorzata Kowalska Year2020 SourceInt. Agrophys. LanguageEnglish Pages289-300 LUMiSizerLS2192oleogels 12 more ethyl celluloseoil-in-water emulsionsMS-DWS methodstorage testCSA methodFood BiophysicsPhysics of Plant MaterialsColloid physicochemistrynutritionThe purpose of this study was the evaluation of the physical stability of low-fat oil-in-water model emulsions containing oleogels based on ethyl cellulose)compared to emulsions with anhydrous milk fat. centrifugal sedimentation analysisCentrifugal Stability Analysis More details Edition34 Internal reference2192 Open publication →
Physicochemical and bulk handling properties of micronised calcium salts and their application in calcium fortification of whey protein-based solutions AuthorGiovanni Barone, Jonathan O'Regan, Alan L.Kelly, James A.O'Mahony Year2020 SourceJournal of Food Engineering LanguageEnglish Pages110213 2231The whey protein solutions fortified with calcium salts at 0.50% (w/w) were assessed under accelerated conditions using analytical centrifugation (LUMiSizer). LSnutritionCalcium Micronisation 7 more FlowabilityTriboelectric chargeWhey proteinCalcium fortificationthree calcium salts (i.e.carbonatecitrate and phosphate) More details EditionAvailable online 20 June 2020, In Press, Journal Pre-proof Internal reference2231 Open publication →
Physicochemical properties and in vitro digestibility of lotus seed starch-lecithin complexes prepared by dynamic high pressure homogenization AuthorYixin Zheng, Yujia Ou, Yi Zhang, Baodong Zheng, Hongliang Zeng, Shaoxiao Zeng Year2020 SourceInternational Journal of Biological Macromolecules LanguageEnglish Pages196-203 2205After heating420 μL of each sample was loaded into the instrument-specific centrifuge tube and measured with a stability analyzer LUMiFugeLF 7 more Starch lecithin complexesPhysicochemical propertiesDigestibilityfoodnutritionLUMiSizerLS More details Edition156 Internal reference2205 Open publication →
Poly (methacrylic acid) modified spherical and platelet hybrid nanoparticles as reinforcing fillers for dentin bonding systems: Synthesis and properties AuthorLaleh Solhi, Mohammad Atai, Azizollah Nodehi, Mohammad Imani Year2020 SourceJournal of the Mechanical Behavior of Biomedical Materials LanguageEnglish Pages103840 2192LUMiReader PSALRPSADental adhesives 5 more NanoparticlesSurface modificationGraft polymerizationShear bond strengthThe stability of PMA-g–NC–Sil dispersion in the dentin adhesive was investigated using separation analysis (LUMi Reader) techniques. More details Edition109 Internal reference2192 Open publication →
Powder and Reconstituted Properties of Commercial Infant and Follow-On Formulas AuthorEoin G. Murphy, Nicolas E. Regost, Yrjö H. Roos and Mark A. Fenelon Year2020 SourceFoods LanguageEnglish Pages84 2074Stability of reconstituted powders to creaming and sedimentation was measured using a LumiFugeLFLUMiSIzer 4 more LSfoodnutritioninfant formula; microstructure; emulsion quality More details Edition9 Internal reference2074 Open publication →
Preparation and characterization of metformin hydrochloride controlled-release tablet using fatty acid coated granules AuthorJi-Hyun Kang, Myung-Hee Chun, Mi-Seo Cho, Yong-Bin Kwon, Jae-Cheol Choi, Dong-Wook Kim, Chun-Woong Park & Eun-Seok Park Year2020 SourceDrug Development and Industrial Pharmacy LanguageEnglish Pages852-860 2237Metformin hydrochloridealuminum stearatepolyethylene oxide 12 more micro-computed tomographydispersion analyzerLUMiSizerLSThe dispersion stability of the binder solution was optimized by the dispersion analyzer. A dispersion analyzer (LUMisizer)which employs centrifugal sedimentation to accelerate the cause of instability phenomenasuch as sedimentation and aggregationwas used to determine the separation stabilityvelocityand particle size distributionpsdpsa More details Edition46 Internal reference2237 Open publication →
Preparation and characterization of stabilizer-free phytantriol-based water-in-oil internally liquid crystalline emulsions AuthorSeysedeh Parinaz Akhlaghi, Lia Beraldo da Silveira Balestrin, César Brinatti, Franz Pirolt, WatsonLoh, Otto Glatter Year2020 SourceJournal of Pharmaceutical Sciences LanguageEnglish Despite the widespread use of surfactantsthere are known issues such as allergic reactions and formulation complications in their use as emulsion stabilizers. In this studystabilizer-free water-in-oil (W/O) emulsions containing waterphytantriol and almond oil were prepared by an ultra-turrax homogenizer 11 more a standard laboratory equipmentand a high specialized high-shear device. Parameters such as mixing timestirring ratecompositionorder of addition of phasesand temperature were investigated to systematically optimize the preparation of the formulations through evaluating their accelerated physical stability by a centrifugal sedimentation technique.2107Accelerated physical stability (LUMiSizer®) testsAccelerated physical stability testing of emulsions was performed using an analytical centrifugal analyzerLUMiSizer®LS More details EditionAvailable online 13 March 2020 In Press, Journal Pre-proof Internal reference2107 Open publication →
Preparation and cytotoxicity of lipid nanocarriers containing a hydrophobic flavanone AuthorDaniele O.Simão, Thalita D.Honorato, Graciely G.Gobo, Henrique L.Piva, Patrícia L.Goto, Larissa A.Rolima, Cédric-OlivierTurrin, Muriel Blanzat, Antonio C.Tedesco, Marigilson P.Siqueira-Moura Year2020 SourceColloids and Surfaces A: Physicochemical and Engineering Aspects LanguageEnglish Pages124982 2234LSStability study was performed by using the analytical centrifugation method with photometric detection at 865 nm (LUMiSizer)Hesperitin 5 more Nanostructured lipid carriersPIT methodCharacterizationGlioblastomaCytotoxicity More details Edition601 Internal reference2234 Open publication →
Preparation of emulsifiers from pea and corn starches using octenyl succinic anhydride modification AuthorFan Cheng Year2020 SourceMaster of Science Thesis LanguageEnglish Pages1-115 2247LUMiSizerLSAccelerated stability of emulsion 11 more objective of this thesis research was to modify pea starch –a representative pulse starch –using octenyl succinic anhydride (OSA) to prepare emulsifiers for enhanced industrial utilization. Pea starch (PS)normal corn starch (NCS)and waxy corn starch (WCS) were modified with 1%3% and 5% OSA (w/won a dry basis of starchdb). Native PS consisted of more amylose (41.5%) than NCS (32.9%) and WCS (1.7%).The OS starches displayed good capability of lowering canola oil-water interfacial tension (IFT). Canola oil-in-water (O/W) emulsions were prepared with the OS starches to evaluate their emulsifying propertieswith gum Arabic (GA) being included as the industry standard for comparison. Droplet-size distributionszeta potentialsaccelerated stabilityand storage stability of the resultant emulsions were determined and compared. nutrition More details LocationDepartment of Food and Bioproduct Sciences, University of Saskatchewan, Saskatoon, Canada Internal reference2247 Open publication →
Preparation of Water‐in‐Oil‐in‐Water Multiple Emulsions with Potential Use in Food Industry AuthorIveta Klojdová, Eva Feldeková, Monika Kumherová, Kristina Veselá, Šárka Horáčková, Jiří Štětina Year2020 SourceChemical Engineering Technology LanguageEnglish Pages523-530 Phase separations of w/o emulsions were observed visually and also evaluated by LUMiSizerLS2094Water‐in‐oil‐in‐water (w/o/w) emulsions were prepared using commonly available raw materials and a two‐step emulsification process. Several combinations of milk proteins and hydrocolloids were tested as internal water phases. Emulsions prepared with milk or colostrum exhibited the highest encapsulation efficiencies. In particular 3 more w/o/w emulsions with internal water phases composed of colostrumwithout addition of hydrocolloidswere the most stable. nutrition More details Edition43 Internal reference2094 Open publication →
PŘÍPRAVA STABILNÍCH PŘÍRODNÍCH BB KRÉMŮ A ZKOUMÁNÍ JEJICH VLASTNOSTÍ THE PREPARATION OF STABLE NATURE BB CREAMS AND DETERMINATION OF ITS PROPERTIES AuthorMilada Kolenová Year2020 SourceDIPLOMOVÁ PRÁCE MASTER'S THESIS LanguageCzech Pages1-86 2789LUMiSizerLSCieľom tejto diplomovej práce bolo vytvoriť prírodný BB krém 29 more ktorý by okrem dostatočnej hydratáciechránil pokožku pred slnečným žiarenímzjednocoval jej farebný tón a zároveň dostatočne prekrýval prípadné nedokonalosti. Po navrhnutí vhodnej receptúry bolo potrebné stanoviť stabilitu pripravených BB krémov. Stabilita bola vyhodnotená na základe porovnania výsledkov z analytickej odstredivky LUMisizer pri rôznych teplotách a súčasných záťažových testov v sušiarni. Charakterizáciou tokových vlastností pomocou reológie boli potvrdené pseudoplastické vlastnostivďaka ktorým vytvára BB krém po rozotrení na pokožke súvislú vrstvu. Za účelom ochrany pred slnečným žiarením bolo potrebné stanoviť SPF a zmerať farebné odtiene pripravených BB krémov pre zrovnanie s komerčne dostupnými prípravkami.The aim of this diploma thesis was create a natural BB cream thatin addition to sufficient hydrationwould protect the skin from sunlightunify its colour tone and at the same time sufficiently cover any imperfections. After proposition a suitable recipeit was necessary to determine the stability of the prepared BB creams. The stability was evaluated by comparing the results from the dispersion analyser LUMiSizer at various temperatures and current load tests in an oven. The pseudoplastic properties were confirmed by the rheology characterization of the flow propertieswhich makes the BB cream a continuous layer on the skin after it is spread. In order to protect against sunlightit was necessary to determine the SPF and measure the colour shades of the prepared BB creams for comparison with commercially available preparations. home personal carecosmeticsDisperzné systémyemulziestabilitakozmetický prípravokBB krémUV filtrereológiaDispersive systemsemulsionstabilitycosmetic preparationBB creamUV filtersrheologyStanovenie stability pomocou analytickej odstredivky LUMiSizerStanovenie stability pomocou analytickej odstredivky Meranie stability prebiehalo pomocou analytickej odstredivky LUMiSizerktorá je schopná určiť na základe tvaru a priebehu transmitančných kriviek stabilitu celého systémuVyhodnotenie stability pomocou LUMiSizer vzorku č. 5 pri 25 °C More details LocationVYSOKÉ UČENÍ TECHNICKÉ V BRNĚ BRNO UNIVERSITY OF TECHNOLOGY FAKULTA CHEMICKÁ FACULTY OF CHEMISTRY ÚSTAV FYZIKÁLNÍ A SPOTŘEBNÍ CHEMIE INSTITUTE OF PHYSICAL AND APPLIED CHEMISTRY, Czech Republic Internal reference2789 Open publication →
Probing particle heteroaggregation using analytical centrifugation AuthorMarcel Rey, Maximilian J. Uttinger, Wolfgang Peukert, Johannes Walter and Nicolas Vogel Year2020 SourceSoft Matter LanguageEnglish For each sedimentation experimentpolycarbonate cells with a path length of 2 mm were filled with 400 mL of each dispersion. AC experiments of dispersions were carried out using the LUMiSizerLS2117 3 more controlled aggregation of colloidal particlesuse of analytical centrifugation to characterize the heteroaggregation of silica particles and soft microgels bearing similar surface charges. We investigate the attachment as well as the stability of the formed heteroaggregates as a function of particle to microgel surface ratiomicrogel size and the influence of temperature More details EditionAdvance Article Internal reference2117 Open publication →
PRODUÇÃO E CARACTERIZAÇÃO DE PEPTÍDEOS À PARTIR DA HIDRÓLISE ENZIMÁTICA DA QUERATINA ASSOCIADA COM ULTRASSOM E MICRO-ONDAS AuthorNely de Almeida Pedrosa Year2020 SourceTese LanguagePortuguese Pages1-115 A distribuição do tamanho de partículas foi determinada em Dispersion Analyser Lumisizer para os hidrolisados enzimáticos finaisLS2556Dados da análise de tamanho de partículas do solubilizado (controle) e solubilizado com tratamento de ultrassom (SL-US) 19 more Comparativo da distribuição do tamanho de partículas do solubilizado sem e com tratamento com ultrassomparticle size distributionanalysispsdpsaEnzima. Hidrolisado. Pena. Proteína. Tecnologia emergenteEmergent technology. Enzyme. Feather. Hydrolysate. Proteinchciken feathers are used mainly for animal feed feather mealhoweverdue to their high protein contentgreater than 75 % crude proteinwhich keratin is the major protein (90 %) could be applied for others purposes such as food industrycosmeticsfilmsfibershydrogels and biomedical material. Thusthis research proposed to obtain and characterize keratin hydrolyzate from chicken feathers using ultrasound and microwave technologies as process adjuvants. The results obtained in this research showed that keratin hydrolysate has technological and bioactive propertiesas well as outstanding nutritional quality. foodnutrition More details Editionwith English abstract LocationUNIVERSIDADE FEDERAL DE SANTA CATARINA CENTRO TECNOLÓGICO DEPARTAMENTO DE ENGENHARIA QUÍMICA E DE ALIMENTOS PROGRAMA DE PÓS-GRADUAÇÃO EM ENGENHARIA DE ALIMENTOS, FLORIANÓPOLIS - SC, Brazil Internal reference2556 Open publication →
Progressing Towards the Sustainable Development of Cream Formulations AuthorAna Simões, Francisco Veiga and Carla Vitorino Year2020 SourcePharmaceutics 2020 LanguageEnglish Pages647 opical dermatological product; cream formulation; quality by design; Box–Behnken design; microstructure; rheology; performance2212Stability Analysispredictive assessment of the formulation’s physical stability was carried out after 4 days of manufacture using the LUMiSizer 7 more LScosmeticshome personal carehpcInstability indexSedimentation ratecreaming rate More details Edition12(7) Internal reference2212 Open publication →
Properties of Sulfur Particles Formed in Biodesulfurization of Biogas AuthorAnnemerel R. Mol , Renata D. van der Weijden, Johannes B.M. Klok, and Cees J.N. Buisman Year2020 SourceMinerals LanguageEnglish Pages433 2193LUMiSizerLScrystallization; full-scale desulfurization; particle size analysis; settleability; sulfur 6 more particle analysissettling behavior under elevated 725 gsulfur particlesfuelenergyAcknowledgments: We thank Klaus Mannweiler of GEA Westfalia Separator Group GmbH for the LUMiSizer® analyses More details Edition10 Internal reference2193 Open publication →
