1977
DOI: 10.3168/jds.s0022-0302(77)84061-7
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Solubility and Heat Stability of Whey Protein Concentrates

Abstract: Rennet whey protein concentrates have excellent nutritional properties, but their use in fluid food systems is impaired by the poor heat stability of the protein. Heating whey protein concentrated solutions at neutral pH caused up to 70% losses in solubility. In the absence of added calcium, protein coagulation occurred. near the iso-electric zone whereas in the presence of .03 M calcium chloride, similar protein coagulation occurred in the whole pH range (pH 2 to pH 12). Tryptic hydrolysis of the protein incr… Show more

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Cited by 36 publications
(10 citation statements)
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“…useful in the application of cocosin in fluid food systems like protein-based beverages. Whey protein concentrate (WPC) heated at 80℃ and 134℃ at neutral pH caused up to 70% losses in solubility although partial tryptic hydrolysis of WPC increased its solubility substantially (Hidalgo and Gamper, 1977). Other processing techniques have also been designed to improve the solubility of protein during processing and storage through the use of hydrocolloids like carageenan (Krawczyk et al, 2005) and other processing aids such as phosphates and sodium citrate (Shen, 2007).…”
Section: Number Of Sulfhydryl Groupsmentioning
confidence: 99%
“…useful in the application of cocosin in fluid food systems like protein-based beverages. Whey protein concentrate (WPC) heated at 80℃ and 134℃ at neutral pH caused up to 70% losses in solubility although partial tryptic hydrolysis of WPC increased its solubility substantially (Hidalgo and Gamper, 1977). Other processing techniques have also been designed to improve the solubility of protein during processing and storage through the use of hydrocolloids like carageenan (Krawczyk et al, 2005) and other processing aids such as phosphates and sodium citrate (Shen, 2007).…”
Section: Number Of Sulfhydryl Groupsmentioning
confidence: 99%
“…Cette propriété permet de fortifier en protéines les jus de fruits et autres aliments acides par les hydrolysats de protéines la lécithine. Hidalgo et Gamper (1977) ont montré que l'hydrolyse enzymatique limitée d'un concentré de protéines de lactosérum par la trypsine améliore nettement sa stabilité à la chaleur, sans affecter les propriétés fonctionnelles ni créer de saveurs indésirables.…”
Section: Hydrolyse Enzymatiqueunclassified
“…Par exemple, l'addition de calcium à des concentrés protéiques (85 à 90% de protéines pour 100 g de matière sèche) à pH 6,60-6,90, favorise la précipitation des protéines au chauffage (Hidalgo et Gamper, 1977 …”
Section: Introductionunclassified