Application of a recombinant laccase-chlorogenic acid system in protein crosslink and antioxidant properties of the curd
Abstract
Milk protein crosslink through the action of enzymes represents a feasible strategy to impart new functionalities to cheese. In this work we reported the effects of a laccase mediator system (LMS) on protein crosslink and antioxidant property of curd. The crosslinking activity of a purified recombinant laccase Ery4 and a commercial enzyme preparation (cLC), with three mediators was firstly evaluated in milk and then applied before curd manufacture. Only Ery4-LMS significantly increased curd weight compared to that of the control sample. SDS-PAGE revealed that similar high molecular weight bands produced by both LMSs in milk were also retained in curds. The antioxidant activity recorded in curds with Ery4-LMS was the highest among all samples both before and after gastro-pancreatic digestion. This is the first time that a CGA-based LMS is used in manufacture of curd with improved antioxidant properties. These results open new perspectives for dairy applications.
Autore Pugliese
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Loi M.; Quintieri L.; Fanelli F.; Caputo L.; Mule G.
Titolo volume/Rivista
Food research international
Anno di pubblicazione
2018
ISSN
0963-9969
ISBN
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Numero di citazioni Wos
Nessuna citazione
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Numero di citazioni Scopus
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Ultimo Aggiornamento Citazioni
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Settori ERC
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Codici ASJC
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