[Characterization of peptide and amino acid profile in casein hydrolysates]

Harriman Aley Morais¹, Cristiane Márcia da Silva Barbosa, Daniella Cristine Fialho Lopes

¹Laboratório de Bromatologia Faculdade de Farmácia da UFMG, Av. Olegário Maciel-Belo Horizonte-MG-Brasil.

|September 7, 2002

Abstract:

The nutritional quality of protein hydrolysates has been related in several reports to their di- and tripeptide contents. In the present work different hydrolytic conditions were tested using papain in order to prepare casein hydrolysates with a suitable peptide profile for being used in special diets. The hydrolysates were fractionated by size-exclusion HPLC and the rapid Correct Fraction Area method was used for quantifying the peptides. Among the five hydrolytic conditions studied, three of them gave rise to preparations having nutritionally similar peptide profiles. However, the use of the temperature of 37 degrees C and enzyme:substrate ratio (E:S) of 2% may probably be the most economical condition for industrial production.

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Abstract:

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