3 Biotech

, 9:23 | Cite as

Benchmarking hydrolytic potential of cellulase cocktail obtained from mutant strain of Talaromyces verruculosus IIPC 324 with commercial biofuel enzymes

  • Lavika Jain
  • Akhilesh Kumar Kurmi
  • Deepti AgrawalEmail author
Original Article


In the present study, an attempt was made to benchmark the hydrolytic potential of cellulase cocktail obtained from stable mutant UV-8 of Talaromyces verruculosus IIPC 324 (NFCCI 4117) with three commercially available cellulases. With two experimental approaches, acid-pretreated sugarcane bagasse was subjected to hydrolysis for 72 h, where all the enzymes were dosed on the basis of common protein or common cellulase activity /g cellulose content. Concentrated fungal enzyme (CFE) of mutant UV-8 resulted in ~ 59% and 55% saccharification of acid-pretreated sugarcane bagasse after 72 h at 55 °C and pH 4.5 with respect to reducing sugar release, when dosed at 25 mg protein/g and 500 IU CMC’ase/g cellulose, respectively. On the other hand, at similar dosages, the performance of Cellic CTec2 was best resulting in 77% and 66% saccharification, respectively. When enzyme desorption studies were undertaken by carrying out cellulase activities in saccharified broth after 72 h CFE of UV-8 emerged as the best cellulase cocktail. A minimum of 90% endoglucanase and 60% cellobiohydrolase I was successfully desorbed from residual biomass, thereby increasing the probability of enzyme recycle and reuse for next round of hydrolysis.


Talaromyces verruculosus IIPC 324 Enzymatic saccharification Carboxy methyl cellulase (EG or CMC’ase) Reducing sugars (RS) CFE (concentrated fungal enzyme) Cellobiohydrolase (CBH) 



Authors are grateful to Dr Anjan Ray, Director CSIR-Indian Institute of Petroleum for providing necessary facilities to complete this work and constant encouragement. This research was funded by CSIR-IIP as in-house project under OLP- 350919. We would like to thank Dr Debashish Ghosh, Scientist Biofuel Division for kindly providing acid pretreated sugarcane bagasse for the entire study. Senior research fellowship awarded to Ms Lavika Jain by Council of Scientific and Industrial Research, New Delhi, India is greatly acknowledged.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

This article does not contain any studies with human participants or animals performed by any of the authors.

Supplementary material

13205_2018_1547_MOESM1_ESM.docx (11 kb)
Supplementary material 1 (DOCX 11 KB)


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Copyright information

© King Abdulaziz City for Science and Technology 2019

Authors and Affiliations

  1. 1.Biotechnology Conversion Area, Biofuels DivisionCSIR-Indian Institute of PetroleumDehradunIndia
  2. 2.Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC CampusGhaziabadIndia

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