| Title |
Enhancing the bioproduction of value-added aroma compounds via solid-state fermentation of sugarcane bagasse and sugar beet molasses: Operational strategies and scaling-up of the process |
| ID_Doc |
29530 |
| Authors |
Martínez, O; Sánchez, A; Font, X; Barrena, R |
| Title |
Enhancing the bioproduction of value-added aroma compounds via solid-state fermentation of sugarcane bagasse and sugar beet molasses: Operational strategies and scaling-up of the process |
| Year |
2018 |
| Published |
|
| DOI |
10.1016/j.biortech.2018.04.106 |
| Abstract |
Bioproduction of generally recognized as safe (GRAS) products starting with low-cost raw materials has become significant in the biorefinery concept. Thus, the solid-state fermentation (SSF) of agro-industrial residues using GRAS strains appears as alternative to obtain aroma compounds. Here, the SSF of the mixture sugarcane bagasse/sugar beet molasses was used for producing a mixture of value-added fruit-like compounds. The study aimed to enhance the production and ester selectivity evaluating three operational strategies at three scales (0.5, 4.5 and 22 L) using non-sterilized residues. While the average total volatile production was 120 mg(Vol) per gram of dry substrate (g(ITS)(-1)), fed-batch operation promoted the highest increases in the ester content up to 57 mg(Est) g(ITS)(-1), an 88 and 59% more than in the static-batch and intermittent mixing modes respectively. Alternative operational strategies have compensated the scale-up adverse effects in the bioproduction, moving towards a sustainable large-scale application in a circular economy scheme. |
| Author Keywords |
Kluyveromyces marxianus; Waste valorization; Solid-state fermentation; Sustainable process; Scale-up |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000439317100018 |
| WoS Category |
Agricultural Engineering; Biotechnology & Applied Microbiology; Energy & Fuels |
| Research Area |
Agriculture; Biotechnology & Applied Microbiology; Energy & Fuels |
| PDF |
https://ddd.uab.cat/pub/artpub/2018/196252/biotec_a2018m9v263p136.pdf
|