Fusel Oil: Chemical Composition and an Overview of Its Potential Application

Massa, Thainara Bovo; Raspe, Djéssica Tatiane; Feiten, Mirian Cristina; Cardozo‐Filho, Lúcio; Silva, Camila da

doi:10.21577/0103-5053.20220145

Cited by 4 publications

(4 citation statements)

References 68 publications

(124 reference statements)

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“…In this context, research efforts have been initiated with the aim of harnessing fusel oil, which has become an object of interest due to its broad applicability, especially in the chemical industry where isoamyl alcohol and isobutanol are recovered for the production of biosolvents, extractors, avorings, medicine, and plasticizers. This is particularly relevant in countries where large-scale production is prevalent [10,11,12,13].…”

Section: Introductionmentioning

confidence: 99%

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Isoamyl alcohol and isobutanol production in sugarcane molasses fermentation in a microdistillery: pH, refrigeration, and supplementation effects

Santos,

Almeida,

Andrade

et al. 2024

Preprint

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Fusel oil, a blend of higher alcohols generated during fermentation, predominantly comprises isoamyl alcohol and isobutanol. Despite their adverse effects on distillation and ethanol quality, these alcohols find widespread use, notably in the fine chemical industry. Fusel oil quality and quantity vary due to multiple factors, including raw materials and fermentation conditions. This study aimed to investigate the effects of pH, refrigeration, and supplementation on isoamyl alcohol and isobutanol formation during molasses must fermentation in a microdistillery. The fermentations were conducted in batches that were fed with 25 °Brix must and 25% v/v commercial dry yeast for 10 hours. A complete 2³ factorial design was used to assess the effects of the studied factors and their interactions on the response variables: fermentation efficiency (nf), process efficiency (np), ethanol productivity (P), substrate-to-cell conversion factor (YX/S), isoamyl alcohol produced (A), isobutanol produced (B) and the A/B Ratio between these alcohols. Statistical analysis employed ANOVA and Tukey’s test. The results of the substrate-to-cell conversion factor (YX/S) indicated good yeast performance under different fermentation conditions. The interaction effects among the evaluated factors significantly influenced the formation of isoamyl alcohol and isobutanol, as well as the A/B Ratio.

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Section: Introductionmentioning

confidence: 99%

“…Recent research has focused on the isoamyl alcohol present in fusel oil, both during the distillation process for extraction and in various applications [18,19,20,13].…”

Section: Introductionmentioning

confidence: 99%

Isoamyl alcohol and isobutanol production in sugarcane molasses fermentation in a microdistillery: pH, refrigeration, and supplementation effects

Santos,

Almeida,

Andrade

et al. 2024

Preprint

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“…FO is a blend of alcohols, including iso-amyl alcohol, ethanol, iso-butanol, and propanol, along with water. The chemical composition of FO varies depending on the raw material used for alcohol production in fermentation, such as sugarcane, barley, corn, rice, and sugar beet, as well as the effectiveness of its separation from the fermented mixture (Massa et al 2023).…”

Section: Introductionmentioning

confidence: 99%

Synthesis of iso-amyl ester rosin and its evaluation as an alternative to paraffin in medium density fiberboard production

Yılmaz,

Deniz,

Fazlı

et al. 2024

BioRes

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Iso-amyl ester rosin was synthesized and investigated for its potential utilization in medium density fiberboard (MDF) production. The isoamyl alcohol, the main starting material for the synthesis of isoamyl ester rosin, was obtained through the fractional distillation of fusel oil, a byproduct of bioethanol production. The optimum condition for the iso-amyl ester rosin synthesis was determined as: rosin (165 mmol), isoamyl alcohol (413 mmol), P-TSA/rosin 1.5% (w/w), and commercial additive/rosin 0.15% (w/w). The esterification reaction was followed by FT-IR and mass analysis. For MDF production, a water-repellent material, commercial paraffin (1.5% w/w relative to the dry fiber weight), iso-amyl ester rosin (1.5% and 2.0%; w/w), and unmodified rosin (1.5% and 2.0% w/w) were separately used. In addition, fresh wood fibers, 10% w/w urea formaldehyde (UF) adhesive (relative to the total dry fiber weight), and a 25% aqueous solution of ammonium chloride (as the hardening agent for the UF adhesive, at 0.5% w/w based on the solid adhesive content) were used. MDFs underwent various physical and mechanical tests. Isoamyl ester rosin showed promising results based on the analysis. The results showed that the isoamyl ester rosin can be considered as an alternative to paraffin in sustainable and environmentally friendly MDF production.

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“…The interaction effects among the evaluated factors signi cantly in uenced the formation of isoamyl alcohol and isobutanol, as well as the A/B Ratio. 2017; Massa et al 2023).…”

mentioning

confidence: 99%

Formation of isoamyl alcohol and isobutanol in the fermentation of sugarcane molasses in a microdistillery: evaluation of pH, refrigeration and supplementation factors

Santos,

de Almeida,

Andrade

et al. 2024

Preprint

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Fusel oil is a mixture of higher alcohols that are formed during fermentation, and the main constituents are isoamyl alcohol and isobutanol. Although their presence in fermented musts is detrimental to the distillation process and ethanol quality, the aforementioned higher alcohols are widely used, especially in the fine chemical industry. On the other hand, the quality and quantity of fusel oil depend on various factors, including raw materials and fermentation conditions. The aim of this study was to investigate the effects of pH, refrigeration, and supplementation on the formation of isoamyl alcohol and isobutanol during the fermentation of molasses must in a microdistillery. The fermentations were conducted in batches that were fed with 25 °Brix must and 25% v/v commercial dry yeast for 10 hours. A complete 2³ factorial design was used to assess the effects of the studied factors and their interactions on the response variables: fermentation efficiency (nf), process efficiency (np), ethanol productivity (P), substrate-to-cell conversion factor (YX/S), isoamyl alcohol produced (A), isobutanol produced (B) and the A/B Ratio between these alcohols. For statistical analysis, analysis of variance (ANOVA) and Tukey’s test were used for mean comparisons. The results of the substrate-to-cell conversion factor (YX/S) indicated good yeast performance under different fermentation conditions. The interaction effects among the evaluated factors significantly influenced the formation of isoamyl alcohol and isobutanol, as well as the A/B Ratio.

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Fusel Oil: Chemical Composition and an Overview of Its Potential Application

Cited by 4 publications

References 68 publications

Isoamyl alcohol and isobutanol production in sugarcane molasses fermentation in a microdistillery: pH, refrigeration, and supplementation effects

Isoamyl alcohol and isobutanol production in sugarcane molasses fermentation in a microdistillery: pH, refrigeration, and supplementation effects

Synthesis of iso-amyl ester rosin and its evaluation as an alternative to paraffin in medium density fiberboard production

Formation of isoamyl alcohol and isobutanol in the fermentation of sugarcane molasses in a microdistillery: evaluation of pH, refrigeration and supplementation factors

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