alexa Use of artichoke (Cynara scolymus) flower extract as a substitute for bovine rennet in the manufacture of Gouda-type cheese: characterization of aspartic proteases.
Chemical Engineering

Chemical Engineering

Journal of Bioprocessing & Biotechniques

Author(s): Llorente BE, Obregn WD, Avils FX, Caffini NO, VairoCavalli S, Llorente BE, Obregn WD, Avils FX, Caffini NO, VairoCavalli S

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Abstract Artichoke (Cynara scolymus L.) flower extract was assayed with the aim of replacing animal rennet in the manufacture of Gouda-type cheeses from bovine milk. Floral extract coagulated milk within a suitable time for use on an industrial scale, while the yield of cheese obtained was equal to that achieved with bovine abomasum. Five proteolytic fractions with milk-clotting activity were isolated in a two-step purification protocol, three belonging to the cardosin group. Cheeses made with C. scolymus proteases must be brined for a longer period (40 h) to prevent overproteolysis and avoid the development of a background flavor. The type of coagulant (bovine or vegetable) had no significant effect on the cheeses' chemical parameters analyzed throughout ripening, and no significant organoleptic differences were detected between those manufactured with C. scolymus or animal rennet. The results indicate that C. scolymus flower extract is suitable for replacing animal rennet in the production of Gouda-type cheeses. Copyright © 2014 Elsevier Ltd. All rights reserved. This article was published in Food Chem and referenced in Journal of Bioprocessing & Biotechniques

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