Cauliflower waste utilization for sustainable biobutanol production: revelation of drying kinetics and bioprocess development

Manisha A. Khedkar, Pranhita R. Nimbalkar, Prakash V. Chavan, Yogesh J. Chendake, Sandip B. Bankar*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

19 Citations (Scopus)
128 Downloads (Pure)

Abstract

Efficient yet economic production of biofuel(s) using varied second-generation feedstock needs to be explored in the current scenario to cope up with global fuel demand. Hence, the present study was performed to reveal the use of cauliflower waste for acetone–butanol–ethanol (ABE) production using Clostridium acetobutylicum NRRL B 527. The proximate analysis of cauliflower waste demonstrated to comprise 17.32% cellulose, 9.12% hemicellulose, and 5.94% lignin. Drying of cauliflower waste was carried out in the temperature range of 60–120 °C to investigate its effect on ABE production. The experimental drying data were simulated using moisture diffusion control model. The cauliflower waste dried at 80 °C showed maximum total sugar yield of 26.05 g L−1. Furthermore, the removal of phenolics, acetic acid, and total furans was found to be 90–97, 10–40, and 95–97%, respectively. Incidentally, maximum ABE titer obtained was 5.35 g L−1 with 50% sugar utilization.

Original languageEnglish
Pages (from-to)1493–1506
Number of pages14
JournalBIOPROCESS AND BIOSYSTEMS ENGINEERING
Volume40
Issue number10
DOIs
Publication statusPublished - Jul 2017
MoE publication typeA1 Journal article-refereed

Keywords

  • Biobutanol
  • Cauliflower waste
  • Detoxification
  • Drying
  • Fermentation

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