The granulation of a tablet formulation in a high-speed mixer, Diosna P 25
Författare
Summary, in English
The impeller speed, the loss-on-drying of starch, and the added amount of water significantly influenced these response variables: granule fractions of less than 0.150 mm and more than 2.00 mm; and granule median diameter. The influence of the drug concentration on the response variables was less important. All the response variables showed significant interactions.
At a fixed impeller speed, the fine fraction was reduced when the loss-on-drying of starch increased, and when water was added in increasing amounts. The coarse fraction and granule median diameter increased along with an increasing moisture content in the starch. Increasing amounts of added water had the same effect.
The response surface contours of a fraction less than 0.150 mm, and a fraction exceeding 2.00 mm, were plotted. So was the granule median diameter. Suitable levels for the processing variables involved in obtaining a granulation of the desired proportions - fine or coarse fraction - can be read from the contour plots.
Heat was generated in the mixer during kneading, which caused some evaporation of water.
The change in the rotation rate of the impeller during the addition of the granulating liquid can be used as an indication of the fraction percentages below 0.150 mm and above 2.00 mm, but not of the median diameter.
At a fixed impeller speed, the fine fraction was reduced when the loss-on-drying of starch increased, and when water was added in increasing amounts. The coarse fraction and granule median diameter increased along with an increasing moisture content in the starch. Increasing amounts of added water had the same effect.
The response surface contours of a fraction less than 0.150 mm, and a fraction exceeding 2.00 mm, were plotted. So was the granule median diameter. Suitable levels for the processing variables involved in obtaining a granulation of the desired proportions - fine or coarse fraction - can be read from the contour plots.
Heat was generated in the mixer during kneading, which caused some evaporation of water.
The change in the rotation rate of the impeller during the addition of the granulating liquid can be used as an indication of the fraction percentages below 0.150 mm and above 2.00 mm, but not of the median diameter.
Avdelning/ar
Publiceringsår
1985
Språk
Engelska
Sidor
917-930
Publikation/Tidskrift/Serie
Drug Development and Industrial Pharmacy
Volym
11
Issue
4
Dokumenttyp
Artikel i tidskrift
Förlag
Marcel Dekker
Ämne
- Probability Theory and Statistics
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 0363-9045