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April 15, 2026The Open Agriculture JournalOpen Access

Comparative Analysis of Grain Sorghum and Corn as Raw Materials for Bioethanol Production using Very High Gravity Fermentation

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Authors

VSVolodymyr SamarinTITetiana S. IvanovaYVYevhenii Vovk

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Overview

Comparative assessment reveals grain sorghum's superiority in bioethanol production in arid climates, suggesting economic benefits.

Key Points

  • This study aims to compare the technological characteristics of grain sorghum and corn in bioethanol production.
  • Compared early-maturing grain sorghum with traditional corn varieties.
  • Prepared wort with high dry matter concentration for fermentation.
  • Measured dynamic viscosity using a rotational viscometer.
  • Fermented wort using dry yeast and analyzed the resulting distillates.
  • Both grains exhibit similar starch levels, with variations in protein and polysaccharide content.
  • Produced approximately 14% vol. ethanol after 72 hours of fermentation.
  • Bioethanol production yield reached 1.52–1.54 g/(l•h) for both feedstocks.
  • Sorghum distillates had 11.1% lower levels of volatile by-products compared to corn.

Cite This Study

Samarin et al. (2026) studied this question.

synapsesocial.com/papers/69df2c01e4eeef8a2a6b0ed2https://doi.org/10.2174/0118743315453033260408065709
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  5. 5Optimizing Bioethanol (C2H5OH) Yield of Sweet Sorghum Varieties in a Semi-Arid Environment: The Impact of Deheading and Deficit Irrigation2024