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Heat‐induced coagulation of whole milk by high levels of calcium chloride
Author(s) -
RAMASUBRAMANIAN LAKSHMI,
D’ARCY BRUCE,
DEETH HILTON C
Publication year - 2012
Publication title -
international journal of dairy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.061
H-Index - 53
eISSN - 1471-0307
pISSN - 1364-727X
DOI - 10.1111/j.1471-0307.2012.00823.x
Subject(s) - coagulation , calcium , chemistry , chloride , food science , chromatography , organic chemistry , medicine
This study investigated the interaction of calcium ions and milk proteins during heat‐induced coagulation of milk. Addition of 20–200 mM calcium chloride to milk caused coagulation on heating to 70 °C. Preheating milk at 90 °C for 10 min or ultra‐high temperature treatment at 140 °C for 6 s increased the sensitivity of milk proteins to coagulation. The former treatment was more effective than the latter in coagulating proteins. A maximum of 98% of the protein in milk preheated at 90 °C for 10 min was coagulated by 50 mM added calcium chloride at 70 °C with holding for 5 min.