Classification of heat load applied to milk requires the detection of parameters appropriately related to the intensity of the heat treatment. Current analytical methods based on heat-induced changes in the protein component of milk have been directed either to determine the amount of protein-derived products arised from heat treatments or to evaluate the extent of thermal denaturation of milk proteins. Lately, a new analytical strategy has been developed according to the occurrence of three major whey proteins, namely bovine serum albumin (BSA), beta-lactoglobulin (blg) and alfa-lactalbumin (ala), normally soluble at pH 4.6 in raw milk, in the pH 4.6 insoluble protein fraction recovered from heattreated milk. The results have shown that pH 4.6 insoluble BSA, blg and ala, as detected by ELISA in milk, can be regarded as thermal markers suited for either dairy process control or regulation purposes.
Thermal markers arising from changes in the protein component of milk / C., Manzo; Nicolai, MARIA ADALGISA; R., Pizzano. - In: FOOD CONTROL. - ISSN 0956-7135. - 51:(2015), pp. 251-255. [10.1016/j.foodcont.2014.11.029]
Thermal markers arising from changes in the protein component of milk
NICOLAI, MARIA ADALGISA;
2015
Abstract
Classification of heat load applied to milk requires the detection of parameters appropriately related to the intensity of the heat treatment. Current analytical methods based on heat-induced changes in the protein component of milk have been directed either to determine the amount of protein-derived products arised from heat treatments or to evaluate the extent of thermal denaturation of milk proteins. Lately, a new analytical strategy has been developed according to the occurrence of three major whey proteins, namely bovine serum albumin (BSA), beta-lactoglobulin (blg) and alfa-lactalbumin (ala), normally soluble at pH 4.6 in raw milk, in the pH 4.6 insoluble protein fraction recovered from heattreated milk. The results have shown that pH 4.6 insoluble BSA, blg and ala, as detected by ELISA in milk, can be regarded as thermal markers suited for either dairy process control or regulation purposes.File | Dimensione | Formato | |
---|---|---|---|
Thermal markers .pdf
solo utenti autorizzati
Descrizione: articolo principale
Tipologia:
Documento in Post-print
Licenza:
Accesso privato/ristretto
Dimensione
462.17 kB
Formato
Adobe PDF
|
462.17 kB | Adobe PDF | Visualizza/Apri Richiedi una copia |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.