Quantifying effects of moisture content on flow properties of microcrystalline cellulose using a ring shear tester

2016 ◽  
Vol 289 ◽  
pp. 104-108 ◽  
Author(s):  
Changquan Calvin Sun
Keyword(s):  
Moisture Content ◽  
Microcrystalline Cellulose ◽  
Flow Properties ◽  
Ring Shear ◽  
Shear Tester

scholarly journals Mechanical properties of native maize, wheat, and potato starches

2013 ◽  
Vol 31 (No. 4) ◽  
pp. 347-354 ◽  
Author(s):  
M. Stasiak ◽  
M. Molenda ◽  
I. Opaliński ◽  
W. Błaszczak
Keyword(s):  
Mechanical Properties ◽  
Moisture Content ◽  
Mechanical Behaviour ◽  
Potato Starch ◽  
Uniaxial Compression Test ◽  
Strength Parameters ◽  
Ring Shear ◽  
Potato Starches ◽  
Particle Sizer ◽  
Shear Tester

The interrelations between moisture content and mechanical properties of dry and wet native starches of wheat, maize, and potato were investigated. Strength parameters of powders were tested using direct shear and ring shear tester. Carr indices and associated parameters were determined using a Hosokawa Powder Tester. Particle size distribution of powder was analysed using an Infrared Particle Sizer. Uniaxial compression test was conducted to determine the reaction of powder in a cylindrical probe to vertical load. Mechanical behaviour of the material was found to be changing with increasing moisture content. Mechanical behaviour of potato starch was found to be different from that of cereal starches, which may require different utilisation in some processes.  

scholarly journals Flow Properties of Spices Measured with Powder Flow Tester and Ring Shear Tester-XS

2015 ◽  
Vol 19 (7) ◽  
pp. 1475-1482 ◽  
Author(s):  
Katarina Slettengren ◽  
Epameinondas Xanthakis ◽  
Lilia Ahrné ◽  
Erich J. Windhab
Keyword(s):  
Powder Flow ◽  
Flow Properties ◽  
Ring Shear ◽  
Shear Tester

Optimization of Microcrystalline Cellulose PH 101, Lactose, and Kollidon® K 30 To Obtain Co-Processed Excipient Through Spray Drying

2017 ◽  
Vol 7 (2) ◽  
Author(s):  
Kusuma P. ◽  
Syukri Y ◽  
Sholehuddin F. ◽  
Fazzri N. ◽  
Romdhonah . ◽  
...  
Keyword(s):  
Spray Drying ◽  
Microcrystalline Cellulose ◽  
Chemical Change ◽  
Direct Compression ◽  
Flow Properties ◽  
Scanning Calorimetry ◽  
Compression Process ◽  
Infrared Spectrophotometer ◽  
Physical Mixtures ◽  
Spray Dried

The most efficient tablet processing method is direct compression. For this method, the filler-binder can be made by coprocessing via spray drying method. The purpose of this study was to investigate the effect of spray dried co-processing on microcrystalline cellulose (MCC) PH 101, lactose and Kollidon® K 30 as well as to define the optimum proportions. Spray dried MCC PH 101, lactose, and Kollidon® K 30 were varied in 13 different mixture design proportions to obtain compact, free-flowing filler-binder co-processed excipients (CPE). Compactibility and flow properties became the key parameters to determine the optimum proportions of CPE that would be compared to their physical mixtures. The result showed that the optimum proportion of CPE had better compactibility and flow properties than the physical mixtures. The optimum CPE, consisting of only MCC PH 101 and Kollidon® K 30 without lactose, that were characterized using infrared spectrophotometer, differential scanning calorimetry (DSC), X-ray diffraction (XRD), and scanning electron microscope (SEM) indicated no chemical change therein. Therefore, this study showed that spray dried MCC PH 101, lactose and Kollidon® K 30 could be one of the filler-binder alternatives for direct compression process.

Effects of shear cell size on flowability of powders measured using a ring shear tester

2021 ◽  
Author(s):  
Chenguang Wang ◽  
Sichen Song ◽  
Chamara A. Gunawardana ◽  
David J. Sun ◽  
Changquan Calvin Sun
Keyword(s):  
Cell Size ◽  
Shear Cell ◽  
Ring Shear ◽  
Shear Tester

EVALUATION OF TRAPA BISPINOSA STARCH AS AN ALTERNATIVE TABLET EXCIPIENT TO MAIZE STARCH: ASSESSMENT BY PREFORMULATION AND FORMULATION STUDIES

INDIAN DRUGS ◽  
2012 ◽  
Vol 49 (08) ◽  
pp. 27-32
Author(s):  
S Venkatesh ◽  
◽  
B. N Babu ◽  
K. Latha ◽  
R Alvala ◽  
...  
Keyword(s):  
Moisture Content ◽  
Sieve Analysis ◽  
Maize Starch ◽  
Compatibility Studies ◽  
Flow Properties ◽  
Pharmaceutical Excipient ◽  
Dry Granulation ◽  
Preformulation Studies

Starch isolated from Trapa bispinosa (Trapaceae) fruit was studied as an alternative pharmaceutical excipient to maize starch. T. bispinosa starch has been evaluated by series of tests as mentioned in Indian Pharmacopoeia before being used for evaluation. It was tested along with maize starch as an alternative excipient by performing battery of preformulation and formulation tests. Preformulation studies like sieve analysis, micrometry, flow properties, moisture content, swelling index and compatibility studies were done as per recommended procedures. The tablets were prepared by wet and dry granulation using paracetamol and aspirin respectively, with Trapa starch as binder, disintegrant, binder and disintegrant and tablets were evaluated. The results obtained for T. bispinosa starch were comparable with maize starch and the T. bispinosa starch can be used as a pharmaceutical excipient in tablets preparation.

scholarly journals Direct shear testing of flowability of food powders

2012 ◽  
Vol 50 (No. 1) ◽  
pp. 6-10 ◽  
Author(s):  
M. Stasiak ◽  
M. Molenda
Keyword(s):  
Direct Shear ◽  
Potato Flour ◽  
Flow Function ◽  
Flow Properties ◽  
Shear Testing ◽  
Powdered Milk ◽  
Food Powders ◽  
Direct Shear Testing ◽  
Shear Tester

The flow properties were determined for two groups of food powders used in industry: cereal powders and non-starch powders. Materials were different in mean sizes of particles d* ranging from 0.033&nbsp;mm for potato flour to 4.449&nbsp;mm for oatmeal. Experiments were performed in 60&nbsp;mm in diameter direct shear tester (Jenike shear tester) for four values of consolidating stress <sub>r</sub>: 30, 60, 80 and 100 kPa. The highest values of flow function (FF) and the widest range of its variability (ranging from 0.5 kPa to 35 kPa) were found in the case of pearl barley groats. For the non-starch powders values of FF were more stable and did not exceed a limit characteristic for easy flowing materials. The highest values of FF in the group of the non-starch materials were obtained for icing sugar (from 19 kPa to 24 kPa) while the lowest found were values of FF for salt (from 3 kPa to 7 kPa). Powdered milk and potato flour showed the widest variability of FF values within the non-starch materials.

scholarly journals A Comparative Analysis of the Flow Properties between Two Alumina-Based Dry Powders

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Milene Minniti de Campos ◽  
Maria do Carmo Ferreira
Keyword(s):  
Internal Friction ◽  
Moisture Content ◽  
Ceramic Powder ◽  
Morphological Characteristics ◽  
Angle Of Repose ◽  
Wall Friction ◽  
Flow Index ◽  
Alumina Powder ◽  
Flow Properties ◽  
Angle Of Internal Friction

We measured and compared the flow properties of two alumina-based powders. The alumina powder (AP) is irregularly shaped and has a smooth surface and moisture content of 0.16% (d.b.), and the ceramic powder (CP), obtained after atomization in a spray dryer, is spherical and has a rough surface and moisture content of 1.07%. We measured the Hausner ratio (HR), the static angle of repose (AoR), the flow index (FI), the angle of internal friction, and the wall's friction angle. The properties measured using aerated techniques (AoR and HR) demonstrated that AP presents true cohesiveness (and therefore a difficult flow), while CP presents some cohesiveness and its flow might be classified as half way between difficult and easy flow. Their FI values, which were obtained using a nonaerated technique, enable us to classify the alumina as cohesive and the ceramic powder as an easy-flow powder. The large mean diameter and morphological characteristics of CP reduce interparticle forces and improve flowability, in spite of the higher moisture content of their granules. The angles of internal friction and of wall friction were not significantly different when comparing the two powders.

Rheology and microstructure of concentrated microcrystalline cellulose (MCC)/1-allyl-3-methylimidazolium chloride (AmimCl)/water mixtures

Soft Matter ◽  
2018 ◽  
Vol 14 (37) ◽  
pp. 7615-7624 ◽  
Author(s):  
Ashna Rajeev ◽  
Abhijit P. Deshpande ◽  
Madivala G. Basavaraj
Keyword(s):  
Microcrystalline Cellulose ◽  
Flow Properties ◽  
Solvent Quality

Water added to a solution of microcrystalline cellulose (MCC) in 1-allyl-3-methylimidazolium chloride (AmimCl) reduces the solvent quality and causes significant changes in the flow properties and microstructure due to restructuring and aggregation of cellulose molecules.

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