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European Food Research and Technology
Article . 1991 . Peer-reviewed
License: Springer TDM
Data sources: Crossref
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Free and total amino acids in the non-protein fraction of an artisan blue cheese during ripening

Authors: González de Llano, Dolores; Polo, María Carmen; Ramos, Mercedes; Martin-Alvarez, Pedro J.;

Free and total amino acids in the non-protein fraction of an artisan blue cheese during ripening

Abstract

[DE]: Während des Reifungsprozesses bei drei Partien Blauschimmelkäse wurde der Verlauf des Gehaltes an freien und gesamten Aminosäuren der in 5% iger Phosphorwolframsäure löslichen Fraktion mittels HPLC beobachtet. Die Korrelationskoeffizienten zwischen dem Gehalt an freien und Gesamt-Aminosäuren während der Reifungszeit waren positiv und größer als 0,85 für die meisten Aminosäuren. Ein geringerer Korrelationsgrad im Verlauf der Reifung war bei den Nicht-Protein-Aminosäuren zu beobachten. Die Anwendung der Faktor-Analyse wies darauf hin, daß die Reifung die wichtigste Ursache der Unterschiede zwischen den analytischen Proben war (60% der Varianz) und die zweite Ursache für die Varianz (15%) der Unterschied zwischen den Partien. Der Reifungsgrad kann in etwa aus der Konzentration bestimmter Aminosäuren geschätzt werden.

[EN]: Changes in the free amino acid content and total amino acid content of the fraction soluble in 5% phosphotungstic acid from three batches of blue cheeses were studied by HPLC over the ripening period. The correlation coefficients between the free and total amino acids and ripening time were positive and higher than 0.85 for most amino acids. Non-protein amino acids showed the lowest correlations with ripening. Principal component analysis performed on the data showed ripening time to be the main cause of variation between the samples analyzed, explaining 60% of the variance; differences between batches were the second most important source of variation (15%). The ripening stage can be approximately estimated from the concentration of certain amino acids.

This work was made possible by financial assistance of the Comisi6n Interministerial de Ciencia y Tecnologia, Project ALI-88-0222-Co-01.

Keywords

Principal Component Analysis, Free amino acids, Free Amino Acid, Ripening Stage, Amino Acid Content, Free Amino

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This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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