Fermentation of Tacca leontopetaloides starch with ragi tapai for bioethanol production

  • Suhaila Mohd Sauid School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia
  • Muhamad Afiq Ab Wahab School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia
  • Mohamad Mohd Aliff Jamian School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia
  • Ahmad Fahmi Mat Zain School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia
  • Herlina Mustafa School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia

Abstract

This study investigates the potential of Tacca leontopetaloides starch as an alternative raw material for bioethanol production. Ragi tapai was used as the saccharification and fermentation agent and different origin of ragi tapai was evaluated for the highest glucose production. Ragi tapai from Sabah (RTSab) produced significantly higher glucose as compared to other origins of ragi tapai and was then used in the rest of the study. Fermentation of ragi tapai with T. leontopetaloides starch was compared with the fermentation of ragi tapai - Saccharomyces cerivisiae co-culture. Glucose and ethanol concentrations were measured by spectrophotometric method. It was found that ragi tapai alone is more efficient in producing bioethanol as the concentration was the highest (17.4% v/v) with productivity reaching 4.5 g/l/h in comparison to only 3.7 g/l/h for co-culture fermentation. Glucose concentration also varied at higher level throughout the fermentation and peaked at 84.28 g/L. This study concludes that T. leontopetaloides starch is a potential raw material for bioethanol and use of ragi tapai is effective in producing bioethanol.

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Published
2023-10-30
How to Cite
MOHD SAUID, Suhaila et al. Fermentation of Tacca leontopetaloides starch with ragi tapai for bioethanol production. Malaysian Journal of Chemical Engineering and Technology (MJCET), [S.l.], v. 6, n. 2, p. 75-80, oct. 2023. ISSN 2682-8588. Available at: <https://myjms.mohe.gov.my/index.php/mjcet/article/view/21822>. Date accessed: 26 june 2024. doi: https://doi.org/10.24191/mjcet.v6i2.21822.

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