Synergistic Effect of Surfactant on Disperser Energy and Liquefaction Potential of Macroalgae (Ulva intestinalis) for Biofuel Production

Rinsha Puthiya Veettil, Rabia, Dinesh Kumar Mathew, Rashmi Gondi, Kavitha Sankarapandian, Meganathan Kannan, Gopalakrishnan Kumar, Siham Y. Al-Qaradawi, Rajesh Banu Jeyakumar

Research output: Contribution to journalArticlepeer-review


The objective of this study was to evaluate the effect of surfactant on disperser homogenization pretreatment for macroalgae (Ulva intestinalis) to enhance biogas production. The macroalgae are subjected to surfactant coupled disperser pretreatment, which enhanced the liquefaction and improved the biomethane production. The outcome of this study revealed that 10,000 rpm at 20 min with a specific energy input of 1748.352 kJ/ kg total solids (TS) are the optimum conditions for surfactant disperser pretreatment (SDP), which resulted in the liquefaction rate of 20.08% with soluble organics release of 1215 mg/L and showed a better result than disperser pretreatment (DP) with a liquefaction rate of 14%. Biomethane production through the SDP method was found to be 0.2 g chemical oxygen demand (COD)/g COD, which was higher than DP (0.11 g COD/g COD). SDP was identified to be a synergetic pretreatment method with an energy ratio and net profit of about 0.91 and 104.04 United States dollars (USD)/ton, respectively.

Original languageEnglish
Article number55
Issue number1
Publication statusPublished - 2023 Jan

Bibliographical note

Funding Information:
This work is supported by Department of Biotechnology, India under its initiative Mission innovation Challenge Scheme (IC4). The grant from the project entitled “A novel integrated biorefinery for conversion of lignocellulosic agro waste into value added products and bioenergy (BT/PR31054/PBD/26/763/2019) is utilized for this study.

Publisher Copyright:
© 2023 by the authors.

All Science Journal Classification (ASJC) codes

  • Food Science
  • Biochemistry, Genetics and Molecular Biology (miscellaneous)
  • Plant Science


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