Amino acid nutrition of some commercial cheese starters in relation to their growth in peptone-supplemented whey media

Author:

Law B. A.,Sezgin Emel,Sharpe M. Elisabeth

Abstract

SummarySome strains of commercial cheese starters were obtained in higher yield after batch culture in whey-based media supplemented with soy peptones than in those supplemented with papain digested skim-milk. The soy peptones contained a greater proportion of small peptides than did the skim-milk digest. Also the average size of peptides was lower (3·4–3·9 residues) in soy preparations than in the milk digest (6·8). Small peptides isolated from the soy peptones were utilized by growing starters more completely than the equivalent peptides isolated from the papain digested milk. These observations may account for the difference in cell yields with soy and milk-digest peptones.

Publisher

Cambridge University Press (CUP)

Subject

Animal Science and Zoology,General Medicine,Food Science

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