Sidra Iqbal1, Muhammad Irfan2*, Hafiz Abdullah Shakir1, Fouzia Tabbsum1, Javed Iqbal Qazi1
... 2% v/v inoculum size in submerged fermentation for 24h. Results showed that among these two treatments, only chemical treated substrates gave better enzyme yield as compared to chemical followed by steam. The highest FPase (2.526 IU/ml/min) activity was found at pretreatment conditions of 0.6% NaOH conc., 10% biomass loading and 4h reaction time while CMCase (2.803 IU/ml/min) at 1% NaOH conc., 15% biomass loading and 6h of reaction time. The proposed model wa...

Fatima Arshad1, Muhammad Irfan2*, Hafiz Abdullah Shakir3, Fouzia Tabbsum3, Javed Iqbal Qazi3

...acillus subtilis K-18 in submerged fermentation at 50 °C for 24 h. Results revealed that acid pretreatment was found more effective for cellulase production as compared to thermochemical pretreatment. The maximum CMCase activity was 1.757 1U/ml/min under conditions of 0.6% acid concentration, 10% substrate concentration, and resident time of 4h. The maximum FPase activity was 2.015 1U/ml/min under conditions of 0.8% acid concentration, 10% substrate concen...

 Mohsin Arshad1, Muhammad Irfan*2, Asad-Ur-Rehman1, Muhammad Nadeem3, Zile Huma3, Hafiz Abdullah Shakir4, Quratulain Syed3

Optimization of medium and substrate for CMCase production by Bacillus subtilis-BS06 in submerged fermentation and its applications in saccharification
Umar Farooq Gohar1, Hamid Mukhtar1,*, Ali Nawaz1, Ikram-ul-Haq1 and Asad Mehmmood2
Tehreem Zahra1, Muhammad Irfan1, Muhammad Nadeem2, Misbah Ghazanfar1, Qurratulain Ahmad3, Shaukat Ali4, Farzana Siddique5, Zarina Yasmeen6, Marcelo Franco7
...ton tree as substrate in submerged fermentation by response surface methodology has been investigated. Three variables like substrate concentration, peptone and KH2PO4 were optimized at three levels. The optimum carboxymethylcellulase (CMCase) activity and filter paper cellulase (FPase) activity was obtained after 96 hours of incubation with optimum conditions of media containing 5% substrate concentration, 0.05% peptone and KH2

Punjab University Journal of Zoology


Vol. 36, Iss. 2, pp. 125-252


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