Pharmacopoeial and physicochemical properties of α-cellulose and microcrystalline cellulose powders derived from cornstalks
DOI:
https://doi.org/10.22377/ijgp.v6i3.260Abstract
Background: Suitable α-cellulose and microcrystalline cellulose powders for use in the pharmaceutical industry can be derivedfrom agricultural wastes. Aims: The pharmacopoeial and physicochemical properties of cornstalk α-cellulose (CCC) and cornstalk microcrystalline cellulose powders (MCCC) were compared to a commercial brand of microcrystalline cellulose (Avicel PH101) to evaluate their usefulness as pharmaceutical excipients. Settings and Design: Physicochemical properties of an excipient play a very crucial role in the functions of the excipient; hence, these properties were evaluated and compared with a commercial brand. Materials and Methods: α-cellulose was extracted from cornstalks. Modification of this α-cellulose powder was carried out by its partial hydrolysis with hydrochloric acid (HCl) to obtain a microcrystalline cellulose powder. Their pharmacopoeial, physicochemical and microbiological properties were evaluated using standard methods. Statistical Analysis: OriginPro 8 SR2 v. 0891 (B891) software (OriginLab Corporation USA) was used for statistical evaluation. One-way analysis of variance was used to differentiate between samples and decide where significant differences were established. Results: The yield of α–cellulose from the cornstalks was 32.5%w/w
and that of microcrystalline cellulose 26%w/w. All the cellulose samples met all the pharmacopoeial parameters that were carried out. The comparison of physicochemical properties of the CCC, MCCC and Avicel PH101 suggests that the microcrystalline celluloses might have better flow and compression properties than the CCC sample. The three cellulose powders were of high microbial excipient quality. For almost all parameters evaluated, it was generally observed that the MCCC has similar characteristics to Avicel PH101. Conclusions: MCCC can be a suitable alternative to the expensive Avicel PH101as pharmaceutical excipients.
Key words: Cornstalk, microcrystalline cellulose, pharmacopoeial properties, physicochemical properties, α-cellulose
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