Cited by 683Biofuel production and bioconversionAlgal biology and biofuel productionMicrobial Metabolic Engineering and Bioproduction

Bioethanol production using carbohydrate-rich microalgae biomass as feedstock

Ho, Shih-Hsin, Huang, Shu-Wen, Chen, Chun-Yen, Hasunuma, Tomohisa, Kondo, Akihiko, Chang, Jo-Shu·2013·Bioresource Technology

Abstract

This study aimed to evaluate the potential of using a carbohydrate-rich microalga Chlorella vulgaris FSP-E as feedstock for bioethanol production via various hydrolysis strategies and fermentation processes. Enzymatic hydrolysis of C. vulgaris FSP-E biomass (containing 51% carbohydrate per dry weight) gave a glucose yield of 90.4% (or 0.461 g (g biomass)(-1)). The SHF and SSF processes converted the enzymatic microalgae hydrolysate into ethanol with a 79.9% and 92.3% theoretical yield, respectively. Dilute acidic hydrolysis with 1% sulfuric acid was also very effective in saccharifying C. vulgaris FSP-E biomass, achieving a glucose yield of nearly 93.6% from the microalgal carbohydrates at a starting biomass concentration of 50 g L(-1). Using the acidic hydrolysate of C. vulgaris FSP-E biomass as feedstock, the SHF process produced ethanol at a concentration of 11.7 g L(-1) and an 87.6% theoretical yield. These findings indicate the feasibility of using carbohydrate-producing microalgae as feedstock for fermentative bioethanol production.

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Crossref · 10.1016/j.biortech.2012.10.015

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Authors
Ho, S.-H., Huang, S.-W., Chen, C.-Y., Hasunuma, T., Kondo, A., & Chang, J.-S.
Affiliations
  • National Cheng Kung University (TW)
  • Kobe University (JP)
Corresponding author
Chang, Jo-Shu
Venue
Bioresource Technology
Publisher
Elsevier BV
Published
2013-05
Volume
135
Pages
191-198
ISSN
0960-8524 (ISSN-L)
OpenAlex
W2043626982
Cited by
683
References
36
Citations by year
2026: 19 · 2025: 34 · 2024: 42 · 2023: 45 · 2022: 78 · 2021: 70 · 2020: 62 · 2019: 80 · 2018: 55 · 2017: 61 · 2016: 46 · 2015: 45 · 2014: 32 · 2013: 14
FWCI
16.59
Type
journal article
Language
en
Open access
closed
Locations
  • Bioresource Technology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Biofuel production and bioconversion
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Microbial Metabolic Engineering and Bioproduction
Keywords
bioethanol production, Chlorella vulgaris, microalgal biomass, enzymatic hydrolysis, simultaneous saccharification and fermentation, dilute acid hydrolysis, glucose yield, ethanol yield
MeSH terms
Ethanol, Biotechnology, Carbohydrates, Fermentation, Glucose, Glucosidases, Hydrolysis, Lipids, Nitrates, Nitrogen, Proteins, Sulfuric Acids, Time Factors, Zymomonas, Biomass, Chlorella vulgaris, Carbohydrate Metabolism, Biofuels, Microalgae

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