期刊
INDUSTRIAL CROPS AND PRODUCTS
卷 172, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.indcrop.2021.113990
关键词
Lignocellulolytic enzymes; Antioxidants; Filamentous fungi; Circular economy
资金
- Portuguese Foundation for Science and Technology (FCT) [SFRH/BD/114777/2016, UID/BIO/04469/2013]
- COMPETE 2020 - European Regional Development Fund under the scope of Norte2020-Programa Operacional Regional do Norte [POCI-01-0145-FEDER-006684]
- BioTec-Norte operation - European Regional Development Fund under the scope of Norte2020-Programa Operacional Regional do Norte [NORTE-01-0145-FEDER-000004]
- Fundação para a Ciência e a Tecnologia [SFRH/BD/114777/2016] Funding Source: FCT
The co-processing of wastes from different agro-food industries through solid-state fermentation can produce lignocellulolytic enzymes and antioxidant compounds, achieving the valorization of these wastes. The fermentation of waste mixtures resulted in high enzymatic and antioxidant activities, allowing for the co-management of agro-industrial wastes.
Agro-food industries face the challenge of re-using their wastes following the circular economy concept. The cobioprocessing of wastes produced by different agro-food industries located in the same region can be a suitable strategy for the valorization of these wastes. This work evaluated the use of mixtures of wastes from wineries, olive mill and breweries to produce lignocellulolytic enzymes and antioxidant compounds by Aspergillus niger under solid-state fermentation (SSF). The SSF of a mixture of brewery spent grain with crude and exhausted olive pomace led to the highest values of enzymatic activity (xylanase, 837 U/g, cellulase, 87 U/g; beta-glucosidase, 254 U/g), being higher than enzymes activities per mass of total substrates. The highest antioxidant activity was achieved after 1 day of fermentation, being 2.3-fold higher in comparison to the unfermented wastes. SSF allowed the co-management of agro-industrial wastes from different industries.
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