Interrelations of drying heat and survival of different fungal spores within the tablets formulation
September 22, 2012
Interrelations of drying heat and survival of different fungal spores within the tablets formulation
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Title: | Interrelations of drying heat and survival of different fungal spores within the tablets formulation |
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Article_Title: | Interrelations of drying heat and survival of different fungal spores within the tablets formulation |
Authors: | Oday Husham Kamil, Dumitru Lupuliasa, Doina Draganescu, Lavinia Vlaia |
Affiliation: | University of Baghdad, faculty of Pharmacy, Iraq University of Medicine and Pharmacy “Carol Davila” Bucharest, Faculty of Pharmacy, Department of Pharmaceutical Technology, 6 Traian Vuia, 020956 University of Medicine and Pharmacy “Carol Davila” Bucharest, Faculty of Pharmacy, Department of Pharmaceutical Physics, 6 Traian Vuia, 020956 University of Medicine and Pharmacy “Victor Babes” Timisoara, Faculty of Pharmacy, Department of Pharmaceutical Technology, Eftimie Murgu, 300041 |
Abstract: | The level of temperature plays an important role in the survival of the microorganisms, the different species of molds must grow and develop at any temperature their environment is. However, high temperature for a certain period will cause the death of microorganisms. In this study the objective is to investigate the interrelations of drying heat (55 oC for 30 minutes) used in tablets manufacture on the survival of different fungal spores (Aspergillus flavus and Penicillium spp.) at different contamination levels (102, 104 and 106) (spores/g) within the prepared tablets. The results showed that the drying heat caused the inactivation of about 32% of Aspergillus flavus spores and 36.6 % of Penicillium spp. spores within the granules. In addition, the level of inactivation decrease with increasing the contamination level, especially with 106 (spores/g) which may be related to the possibility of mutation that lead to enhance the resistance toward heat. |
Keywords: | Tablets manufacture; drying heat; fungal spores survival |
References: | 1. Harriet Burge -How does heat affect fungi?; The Environmental Report. EMLab. March 2006; 4: 3; http://www.alliance-enviro.com/pdf/emlab_heataffectsfungi.pdf. 2. Shu-Ting Chang, John A. Buswell, Philip G. Miles–Genetics and breeding of Edible mushrooms; Gordon and Breach Science Publishers. Second Printing. 1999; 3: 44. 3. Bos C. E., Van Doorne H. and Lerk C. F. -On microbiological stability of tablets stored under tropical conditions; J. Pharm. Sci. 1989; 55: 175-183. 4. Herbert A. Lieberman, Leon Lachman and Kanig J. L. -The theory and practice of industrial pharmacy; Third Edition, 1986. 5. Samson R. A. -Introduction to food-born fungi; Second Edition. 1984; 3: 52-77. 6. Plumpton E. J. -Studies upon the survival of various microorganisms in solid dosage forms; Ph.D. Thesis, University of Manchester. 1982. 7. Plumpton E. J. Gilbert P. and Fell J. T. -Effect of special distribution on contaminant microorganism within tablet formulations on subsequent inactivation through compaction; Int. J. Pharm. 1986; 30: 237-240. 8. Fassihi A. R. and Parker M. S. -The influence of water activity and oxygen tension upon the survival of Aspergillus spp. and Penicillium spp. on tablets; Int. Bio. Bull. 1977; 13: 3: 75-80, 1977. 9. Brown M. R. W. and Melling J. -Inhibition and destruction of the microbial cell; Academic Press. London. 1971. 10. Leistner L. and Rodel W. -Inhibition and inactivation of vegetative microbes; W. B. Academic Press. London. 1976; 8: 218-219. |
Read_full_article: | pdf/21-2011/21-2-2011/SU21-2-2011Kamil.pdf |
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Article Title: | Interrelations of drying heat and survival of different fungal spores within the tablets formulation |
Authors: | Oday Husham Kamil, Dumitru Lupuliasa, Doina Draganescu, Lavinia Vlaia |
Affiliation: | University of Baghdad, faculty of Pharmacy, Iraq University of Medicine and Pharmacy “Carol Davila” Bucharest, Faculty of Pharmacy, Department of Pharmaceutical Technology, 6 Traian Vuia, 020956 University of Medicine and Pharmacy “Carol Davila” Bucharest, Faculty of Pharmacy, Department of Pharmaceutical Physics, 6 Traian Vuia, 020956 University of Medicine and Pharmacy “Victor Babes” Timisoara, Faculty of Pharmacy, Department of Pharmaceutical Technology, Eftimie Murgu, 300041 |
Abstract: | The level of temperature plays an important role in the survival of the microorganisms, the different species of molds must grow and develop at any temperature their environment is. However, high temperature for a certain period will cause the death of microorganisms. In this study the objective is to investigate the interrelations of drying heat (55 oC for 30 minutes) used in tablets manufacture on the survival of different fungal spores (Aspergillus flavus and Penicillium spp.) at different contamination levels (102, 104 and 106) (spores/g) within the prepared tablets. The results showed that the drying heat caused the inactivation of about 32% of Aspergillus flavus spores and 36.6 % of Penicillium spp. spores within the granules. In addition, the level of inactivation decrease with increasing the contamination level, especially with 106 (spores/g) which may be related to the possibility of mutation that lead to enhance the resistance toward heat. |
Keywords: | Tablets manufacture; drying heat; fungal spores survival |
References: | 1. Harriet Burge -How does heat affect fungi?; The Environmental Report. EMLab. March 2006; 4: 3; http://www.alliance-enviro.com/pdf/emlab_heataffectsfungi.pdf. 2. Shu-Ting Chang, John A. Buswell, Philip G. Miles–Genetics and breeding of Edible mushrooms; Gordon and Breach Science Publishers. Second Printing. 1999; 3: 44. 3. Bos C. E., Van Doorne H. and Lerk C. F. -On microbiological stability of tablets stored under tropical conditions; J. Pharm. Sci. 1989; 55: 175-183. 4. Herbert A. Lieberman, Leon Lachman and Kanig J. L. -The theory and practice of industrial pharmacy; Third Edition, 1986. 5. Samson R. A. -Introduction to food-born fungi; Second Edition. 1984; 3: 52-77. 6. Plumpton E. J. -Studies upon the survival of various microorganisms in solid dosage forms; Ph.D. Thesis, University of Manchester. 1982. 7. Plumpton E. J. Gilbert P. and Fell J. T. -Effect of special distribution on contaminant microorganism within tablet formulations on subsequent inactivation through compaction; Int. J. Pharm. 1986; 30: 237-240. 8. Fassihi A. R. and Parker M. S. -The influence of water activity and oxygen tension upon the survival of Aspergillus spp. and Penicillium spp. on tablets; Int. Bio. Bull. 1977; 13: 3: 75-80, 1977. 9. Brown M. R. W. and Melling J. -Inhibition and destruction of the microbial cell; Academic Press. London. 1971. 10. Leistner L. and Rodel W. -Inhibition and inactivation of vegetative microbes; W. B. Academic Press. London. 1976; 8: 218-219. |
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