EVALUATION OF UBI GAJAH FOR BIOETHANOL VIA HYDROLYSIS AND FERMENTATION

Authors

  • A. A. SALEH Department of Mechanical and Manufacturing Engineering, Faculty of Engineering, Universiti Malaysia Sarawak, 94300 Kota Samarahan, Sarawak, Malaysia
  • A. N. R. REDDY Department of Mechanical and Manufacturing Engineering, Faculty of Engineering, Universiti Malaysia Sarawak, 94300 Kota Samarahan, Sarawak, Malaysia; Department of Mechanical Engineering, Malla Reddy College of Engineering & Technology, Secunderabad - 500100, Telangana, India
  • D. K. CHARYULU Department of Mechanical and Manufacturing Engineering, Faculty of Engineering, Universiti Malaysia Sarawak, 94300 Kota Samarahan, Sarawak, Malaysia; Department of Mechanical Engineering, Malla Reddy College of Engineering & Technology, Secunderabad - 500100, Telangana, India
  • S. HAMDAN Department of Mechanical and Manufacturing Engineering, Faculty of Engineering, Universiti Malaysia Sarawak, 94300 Kota Samarahan, Sarawak, Malaysia; Department of Mechanical Engineering, Malla Reddy College of Engineering & Technology, Secunderabad - 500100, Telangana, India

Keywords:

bioethanol, Ubi Gajah, acid hydrolysis

Abstract

This research was carried out to evaluate utilisation of Ubi Gajah (Manihot esculenta), a non-edible cassava species, as a feedstock for bioethanol production by acid hydrolysis. The Ubi Gajah peels and pulp substrates were hydrolysed for a max. of 48 hrs with H2SO4 acid concentration ranges 5% v/v to 15% v/v at high temperature and pressure before fermentation process. While the yield was noted at 24 hr of 15% v/v acid hydrolysis. From the experimental results yield of bioethanol for Ubi Gajah Peel and Pulp 156.65 g/L and 220.89 g/L were noted respectively when both the substrates were hydrolysed with 15% v/v of H2SO4. The FTIR Spectra of the bioethanol, confirms –OH, C-O and C=C groups by absorption bands at 3251.98 cm-1 to 3315.63 cm-1; 1045.42 cm-1 and 1085.92 cm-1; and 1633.71 cm-1 and 1645.28 cm-1 respectively. The biofuel properties were tested according to ASTM standards and found to be complacent. The Bioethanol - diesel blends (BDB) of 5% to 20% v/v were prepared and fuel performance test was conducted on a diesel engine. The performance and emission results confirm suitability of the bioethanol as an alternative fuel.

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Published

31-12-2019

How to Cite

SALEH, A. A., REDDY, A. N. R., CHARYULU, D. K., & HAMDAN, S. . (2019). EVALUATION OF UBI GAJAH FOR BIOETHANOL VIA HYDROLYSIS AND FERMENTATION. Malaysian Applied Biology, 48(5), 59–65. Retrieved from https://jms.mabjournal.com/index.php/mab/article/view/1587

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Research Articles