Paper Title
Production and Recovery of Aroma Compounds Produced by Solid-State Fermentation Using Different Adsorbents.
Keywords
- Solid-State Fermentation
- Aroma Compound Recovery
- Volatile Compounds
- Ceratocystis Fimbriata
- Coffee Husk Substrate
- Bioreactor Scale-Up
- Column Bioreactor
- Horizontal Drum Bioreactor
- Headspace Analysis
- Fruity Volatiles
- Ethanol
- Acetaldehyde
- Ethyl Acetate
- Ethyl Propionate
- Isoamyl Acetate
- Adsorbent Recovery
- Activated Carbon
- Tenax-TA
- Amberlite XAD-2
- Industrial Fermentation
- Bioprocess Optimization
- Fermentation Engineering
- Sustainable Bioproducts
- Bioaromas
- Natural Flavor Compounds
- Biotech Applications
- Green Chemistry
- Food and Beverage Industry
- Fermentation-Derived Aromas
- Bioreactor Design
- Biotechnological Innovation
Publication Info
Volume: 44 | Issue: 1 | Pages: 1-6
Published On
April, 2005
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Abstract
Volatile compounds with fruity characteristics were produced by Ceratocystis fimbriata in two different bioreactors: columns (laboratory scale) and horizontal drum (semi-pilot scale). Coffee husk was used as substrate for the production of volatile compounds by solid- state fermentation. The production of volatile compounds was significantly higher when horizontal drum bioreactor was used than when column bioreactors were used. These results showed that this model of bioreactor presents good perspectives for scale-up and application in an industrial production. Headspace analysis of the solid-state culture detected twelve compounds, among them: ethanol, acetaldehyde, ethyl acetate, ethyl propionate, and isoamyl acetate. Ethyl acetate was the predominant product in the headspace (28.55 μmol/L/g of initial dry matter). Activated carbon, Tenax-TA, and Amberlite XAD-2 were tested to perform the recovery of the compounds. The adsorbent columns were connected to the column-type bioreactor. All compounds present in the headspace of the columns were adsorbed in Amberlite XAD-2. With Tenax-TA, acetaldehyde was adsorbed in higher concentrations. However, the recovery found by using the activated carbon was very low.
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