Valorization of agro-industrial wastes to produce hydrolytic enzymes by fungal solid-state fermentation

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 mat...

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Publié dans:Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA. - 1991. - 37(2019), 2 vom: 01. Feb., Seite 149-156
Auteur principal: Marzo, C (Auteur)
Autres auteurs: Díaz, A B, Caro, I, Blandino, A
Format: Article en ligne
Langue:English
Publié: 2019
Accès à la collection:Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA
Sujets:Journal Article Solid-state fermentation agro-industrial residues enzymatic hydrolysis exhausted sugar beet cossettes exo-polygalacturonase orange peels xylanase Industrial Waste Cellulase EC 3.2.1.4
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520 |a 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 
650 4 |a Journal Article 
650 4 |a Solid-state fermentation 
650 4 |a agro-industrial residues 
650 4 |a enzymatic hydrolysis 
650 4 |a exhausted sugar beet cossettes 
650 4 |a exo-polygalacturonase 
650 4 |a orange peels 
650 4 |a xylanase 
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650 7 |a Cellulase  |2 NLM 
650 7 |a EC 3.2.1.4  |2 NLM 
700 1 |a Díaz, A B  |e verfasserin  |4 aut 
700 1 |a Caro, I  |e verfasserin  |4 aut 
700 1 |a Blandino, A  |e verfasserin  |4 aut 
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