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Library Catalogue

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    Union Catalogue of Agricultural Libraries in the Netherlands

    The WUR Library Catalogue contains bibliographic data on books and periodicals held by the libraries of Wageningen University and Research Centre and some 15 associated libraries. Holding data are added to each record.

    Subjects covered include Agrotechnology, Food and Food Production, Plant and Animal Sciences, Soil Science, Geo-information, Landscape and Spatial Planning, Water and Climate, Ecosystem Studies, Economics and Society.

    The joint collections of the participating libraries cover a substantial part of the internationally available scientific literature in these disciplines.

    As far as Dutch scientific literature in these fields is concerned, coverage can be considered near 100%, including much of the so-called "grey literature".

    All titles are entered in their original language. Keywords are added to facilitate subject searching.

    The database is updated every day and now contains over 830.000 records.

Record number 104679
Title Proteolysis in soft cheese, studied on Meshanger cheese and cheese models
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[door] A. Noomen
Author(s) Noomen, A.
Publisher Wageningen : Pudoc
Publication year 1978
Description 152 p. (ongepag.)
Series title Verslagen Landbouwkundige Onderzoekingen (875)
Notes Proefschrift Wageningen
Tutors Mulder, Prof. Dr. H.
Graduation date 1978-05-17
Dissertation no. 725
Author abstract show abstract

Enzymes predominantly responsible for the primary degradation of protein in soft cheese and for the related changes in consistency were studied. Reconstructed Noordhollandse Meshanger cheese and preserved simulated soft cheeses of different composition were used as models in the investigation. Results for proteolysis in the simulated cheeses were comparable and also comparable to those observed with normal Meshanger cheese. Protein breakdown was studied by estimating the amount of nitrogen soluble in the moisture of cheese and by quantitative polyacrylamide gel electrophoresis. Results of the two methods were well correlated. Proteolysis, which is primarily responsible for changes in consistency of soft cheeses, was caused mainly by calf rennet enzymes. The activity of rennet at different pH and concentrations of NaCl in the moisture of cheese also revealed a major role of rennet enzymes in protein breakdown in soft cheeses with an initially very low pH, ripening under the influence of a surface flora. The role of the surface flora is merely to regulate pH and so to soften the cheese body, and to give the cheese a specific flavour.
Milk protease activity in soft cheese was studied in relation to pH, concentration of NaCl in moisture, ripening time and ripening temperature of the cheese. Its contribution to soft cheese ripening is minor, perhaps except for certain cheeses with a surface flora. Milk protease showed considerable activity in milk at favourable temperatures, proteolysis increased when cheese milk was subjected to low-temperature pasteurization.

Online full textINTERNET
On paper FORUM ; STACKS ; NN08202,725
FORUM ; STACKS ; NN08200,725
FORUM ; STACKS ; NN02568,0875
Keyword(s) (cab) brie cheese / camembert cheese / white cheese / cheese ripening / netherlands / noord-holland
Categories Dairy Products
Publication type PhD thesis
Language English
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