Bioethanol a by-product of agar and carrageenan production industry from the tropical red seaweeds, Gracilaria manilaensis and Kappaphycus alvarezii

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Hessami M.J.; SALLEH A.; PHANG S.M.

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Journal: Iranian Journal of Fisheries Sciences Year:2020 | Volume:19 | Issue:2 Page(s): 942-960

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Title

Bioethanol a by-product of agar and carrageenan production industry from the tropical red seaweeds, Gracilaria manilaensis and Kappaphycus alvarezii

Author(s)

Hessami M.J. | SALLEH A. | PHANG S.M. | Issue Writer Certificate

Keywords

Bioethanol

Cellulase

Agar residues

Gracilaria manilaensis

Kappaphycus alvarezii

Abstract

The two red seaweeds, Gracilaria manilaensis and Kappaphycus alvarezii are cultivated in Malaysia for producing agar and carrageenan, respectively. The residues of these seaweeds after removing agar and carrageenan by dilute acid treatment were subjected to enzymatic hydrolysis using Cellulase (Cellic CTec 2). In the optimization of enzymatic hydrolysis, highest glucose concentration was achieved in the sample with liquid: residue ratio of 7. 5: 1 and enzyme loading of 10 % w w-1 residue. The resulting glucose was converted to Bioethanol using Saccharomyces cerevisiae where Bioethanol yields from G. manilaensis and K. alvarezii were 56. 26± 1. 10 g L-1 and 51. 10± 1. 21 g L-1, respectively, which corresponded to 91 % and 95 % of the theoretical yield. The results of this study indicate that the residues of these seaweeds can be efficiently converted to Bioethanol and besides environmental benefits, additional profit can be achieved in the phycocolloid industry.

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APA: Copy

Hessami, M.J., SALLEH, A., & PHANG, S.M.. (2020). Bioethanol a by-product of agar and carrageenan production industry from the tropical red seaweeds, Gracilaria manilaensis and Kappaphycus alvarezii. IRANIAN JOURNAL OF FISHERIES SCIENCES, 19(2), 942-960. SID. https://sid.ir/paper/741983/en

Vancouver: Copy

Hessami M.J., SALLEH A., PHANG S.M.. Bioethanol a by-product of agar and carrageenan production industry from the tropical red seaweeds, Gracilaria manilaensis and Kappaphycus alvarezii. IRANIAN JOURNAL OF FISHERIES SCIENCES[Internet]. 2020;19(2):942-960. Available from: https://sid.ir/paper/741983/en

IEEE: Copy

M.J. Hessami, A. SALLEH, and S.M. PHANG, “Bioethanol a by-product of agar and carrageenan production industry from the tropical red seaweeds, Gracilaria manilaensis and Kappaphycus alvarezii,” IRANIAN JOURNAL OF FISHERIES SCIENCES, vol. 19, no. 2, pp. 942–960, 2020, [Online]. Available: https://sid.ir/paper/741983/en

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