Effects of calcium, magnesium and pH during salt curing of cod (Gadus morhua L.)

This is the final draft post refereeing version of the article. © Wiley, reprinted with permission. Published version available at http://dx.doi.org/10.1002/jsfa.1697 The article is part of Kristin Lauritzsen's doctoral thesis, which is available in Munin at http://hdl.handle.net/10037/1819 The...

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Bibliographic Details
Main Authors: Lauritzsen, Kristin, Olsen, Ragnar L., Akse, Leif, Gundersen, Bjørn
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 2004
Subjects:
cod
pH
Online Access:https://hdl.handle.net/10037/2905
Description
Summary:This is the final draft post refereeing version of the article. © Wiley, reprinted with permission. Published version available at http://dx.doi.org/10.1002/jsfa.1697 The article is part of Kristin Lauritzsen's doctoral thesis, which is available in Munin at http://hdl.handle.net/10037/1819 The quality of heavily salted cod was investigated as influenced by adjusted levels of calcium, magnesium and pH in the salt. The investigation was carried out as a multivariate study consisting of two separate 23 full factorial designs. The chemical composition, waterholding capacity, weight and protein yields, colour and firmness were used as quality indicators or responses to the salt mixtures tested. The pH of the salt was positively correlated with the muscle pH of the cured fillet. The pH of the muscle correlated negatively with the relative protein content, the lightness values and the sensory firmness of the cured muscle. The protein yield after the salt curing was also negatively correlated with the muscle pH. Calcium ions increased both the lightness and firmness and magnesium ions increased the lightness of the cured fillet.