Review identifies fermentation variables and optimization priorities for sugarcane-molasses ethanol

A review of recent studies identifies temperature, pH, substrate concentration, inoculum volume, mixing rate and fermentation time as critical operating variables in ethanol fermentation from sugarcane molasses. According to the published abstract, the review also highlights process-optimization approaches intended to address limitations in current industrial yields. This is a literature review, not a new experimental study or clinical investigation, and its conclusions summarize the research assessed by the authors rather than results from a newly conducted production trial.

Sugarcane molasses is described in the abstract as the main feedstock for ethanol production because of its cost, availability, sugar content and ease of conversion. The authors identify variability in raw materials and suboptimal process conditions as continuing challenges for maximizing conversion efficiency. Inhibitory compounds in molasses can also hinder the production of high-titer ethanol, while fermentation performance is sensitive to the six operating variables listed above.

The review synthesizes recent work on the use of sugarcane molasses and the process factors affecting its fermentation. Its stated scope extends beyond describing individual variables to identifying optimization approaches that target shortcomings in current industrial yields. The authors present these approaches as a roadmap for improving the efficiency of converting molasses into ethanol and, more broadly, supporting renewable-energy production. The available abstract does not specify the literature-search strategy, databases, study-selection criteria, number of included studies or quality-assessment methods, so the breadth and rigor of the evidence base cannot be independently characterized from the supplied material.

The abstract also reports no pooled effect estimate, direct comparison between optimized production systems, or quantitative measure of improvement in industrial output. Accordingly, the paper should be understood as a review of process factors and proposed optimization priorities, not as proof that any particular set of operating conditions will raise commercial ethanol production. The publisher states that the accessible article is peer-reviewed, accepted research shared ahead of the final Version of Record and remains subject to further edits; the supplied evidence is limited to the abstract and publisher information rather than the full article text.

Subject of Research: Review of fermentation factors and optimization strategies for ethanol production from sugarcane molasses

Article Title: A comprehensive review of the critical process factors and optimization strategies influencing ethanol production from sugarcane molasses

Article References: Reda, T. N., Gebreyohannes, G., & Abreha, G. W. (2026). A comprehensive review of the critical process factors and optimization strategies influencing ethanol production from sugarcane molasses. Discover Sustainability. https://doi.org/10.1007/s43621-026-04994-w

Image Credits: AI Generated

DOI: 10.1007/s43621-026-04994-w

Keywords: sugarcane molasses, ethanol production, fermentation, process optimization, industrial yields, renewable fuels, substrate concentration, fermentation time, comprehensive, review, critical, process