Hydroxycarboxylate combinations for increasing solubility and robustness of supersaturated solutions of whey mineral residues.

Autor: de Zawadzki A; Department of Food Science, University of Copenhagen, Rolighedsvej 26, DK-1958 Frederiksberg C, Denmark., Paganelli MO; Department of Food Science, University of Copenhagen, Rolighedsvej 26, DK-1958 Frederiksberg C, Denmark; Instituto de Química de São Carlos, Universidade de São Paulo, Av. Trabalhador São-Carlense 400, CP 780 São Carlos, Brazil., Garcia AC; Instituto Federal de Educação, Ciência e Tecnologia de São Paulo, Campus Capivari, Avenida Doutor Ênio Pires de Camargo, 2971, São João Batista, CEP: 13360-000 Capivari, SP, Brazil., Skibsted LH; Department of Food Science, University of Copenhagen, Rolighedsvej 26, DK-1958 Frederiksberg C, Denmark. Electronic address: ls@food.ku.dk.
Jazyk: angličtina
Zdroj: Food research international (Ottawa, Ont.) [Food Res Int] 2020 Oct; Vol. 136, pp. 109525. Date of Electronic Publication: 2020 Jul 12.
DOI: 10.1016/j.foodres.2020.109525
Abstrakt: Calcium phosphates present in whey mineral residue is a potential source of calcium for dietary purposes. Combinations of aqueous isocitrate and citrate were found more efficient than each of the isomers in dissolving dried insoluble whey processing mineral residues spontaneously forming supersaturated solutions. Hydrogen isocitrate was found around 30% less efficient in these non thermal dissolution processes compared to hydrogen citrate based on amount of dissolved calcium. In contrast, the lag phase of up to 4 h for precipitation of calcium citrate from the supersaturated solutions was significantly longer when calcium isocitrate was present. Highest degree of supersaturation with longest lag phase for precipitation was found for citrate/isocitrate combinations in a 1:1 ratio. Addition of calcium saccharate during dissolution further prolonged the lag phase simultaneously preserving the higher supersaturation degrees. Combinations of the three hydroxycarboxylates seem accordingly to provide a basis for increasing calcium availability from dried whey mineral fractions consisting mainly of calcium hydrogen phosphate and hydroxyapatite of low solubility with the perspective of transforming a side stream from cheese production into valuable functional foods.
Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2020 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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