scholarly journals Simultaneous production of lignocellulolytic enzymes and extraction of antioxidant compounds by solid-state fermentation of agro-industrial wastes

2019 ◽  
Vol 137 ◽  
pp. 315-322 ◽  
Author(s):  
Paulina Leite ◽  
Cátia Silva ◽  
José Manuel Salgado ◽  
Isabel Belo
2021 ◽  
Vol 27 ◽  
pp. 100407
Author(s):  
Paulina Leite ◽  
Daniel Sousa ◽  
Helena Fernandes ◽  
Marta Ferreira ◽  
Ana Rita Costa ◽  
...  

2011 ◽  
Vol 2011 ◽  
pp. 1-9 ◽  
Author(s):  
Aline Machado de Castro ◽  
Mariana Martins Pereira Teixeira ◽  
Daniele Fernandes Carvalho ◽  
Denise Maria Guimarães Freire ◽  
Leda dos Reis Castilho

This work aimed at investigating the simultaneous production of amylases and proteases by solid-state fermentation (SSF) of babassu cake using Aspergillus awamori IOC-3914. By means of experimental design techniques and the desirability function, optimum inoculum conditions (C/N ratio of propagation medium, inoculum age, and concentration of inoculum added to SSF medium) for the production of both groups of enzymes were found to be 25.8, 28.4 h, and 9.1 mg g−1, respectively. Significant influence of both initial C/N ratio and inoculum concentration was observed. Optimum amylolytic activities predicted by this multiresponse analysis were validated by independent experiments, thus indicating the efficacy of this approach.


2018 ◽  
Vol 37 (2) ◽  
pp. 149-156 ◽  
Author(s):  
C. Marzo ◽  
A.B. Díaz ◽  
I. Caro ◽  
A. Blandino

Nowadays, significant amounts of agro-industrial wastes are discarded by industries; however, they represent interesting raw materials for the production of high-added value products. In this regard, orange peels (ORA) and exhausted sugar beet cossettes (ESBC) have turned out to be promising raw materials for hydrolytic enzymes production by solid state fermentation (SSF) and also a source of sugars which could be fermented to different high-added value products. The maximum activities of xylanase and exo-polygalacturonase (exo-PG) measured in the enzymatic extracts obtained after the SSF of ORA were 31,000 U·kg-1 and 17,600 U·kg-1, respectively; while for ESBC the maximum values reached were 35,000 U·kg-1 and 28,000 U·kg-1, respectively. The enzymatic extracts obtained in the SSF experiments were also employed for the hydrolysis of ORA and ESBC. Furthermore, it was found that extracts obtained from SSF of ORA, supplemented with commercial cellulase, were more efficient for the hydrolysis of ORA and ESBC than a commercial enzyme cocktail typically used for this purpose. In this case, maximum reducing sugars concentrations of 57 and 47 g·L-1 were measured after the enzymatic hydrolysis of ESBC and ORA, respectively.


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