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Extraction of agar from Gelidium corneum using an alternative heating technology
Rocha, Cristina M. R.; Sousa, A. M.; Esparinha, A. S.; Cardoso, B. I.; Vicente, A. A.; Gonçalves, M. P.Traditional polysaccharides extraction processes are often performed under heating which makes them time-, energy- and solvent-consuming. The aim of this work was to assess the possibility of using ohmic heating to replace conventional heating in the extraction of seaweed hydrocolloids. This technology is able to heat almost instantaneously the whole volume to be treated, using the ability that most materials h...
Immobilization of commercial laccase on spent grain
Silva, Andreia Machado da; Tavares, Ana P. M.; Rocha, Cristina M. R.; Cristóvão, Raquel O.; Teixeira, J. A.; Macedo, Eugénia A.The aim of this work was to assess the possibility of using beer spent grain (a byproduct of beer’s brewing industry) as a carrier for laccase immobilization. Both adsorption (on spent grain – SG and on digested spent grain – DSG) and covalent binding (using glycidol and glycidol followed by ethylenediamine on DSG) were used. The effect of different immobilization conditions on the immobilization yields and rec...
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