A feasibility study on the pilot scale manufacture of fresh cheese from skim milk retentates without acid whey production: Effect of calcium content on bitterness and texture

Johannes Schäfer, Karin Sebald, Andreas Dunkel, Thomas Hofmann, Ines Rosenthal, Regina Schuster, Zeynep Atamer, Jörg Hinrichs

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

The sensory and structural properties of fresh cheeses (8.0%, w/w, protein) made from fermented skim milk retentates [concentrated-fermented (CoF) fresh cheese] with different calcium-protein ratios (Ca:Prot; 15.9–36.6 mg g −1 ) by means of pilot plant scale microfiltration (MF) and MF in the diafiltration (DF) mode without acid whey (AW) production were characterised. Calcium reduction reduced the bitterness level significantly (by 53.4%) and the bitter peptide content (by ≈33%) of the CoF fresh cheese after ≤ 1 week of storage; however, storage for ≥ 2 weeks resulted in an increase of both bitterness and bitter peptide content, and quantitatively changed the peptide pattern, possibly due to lack of thermisation. Fresh cheese with a lower bitterness level can be successfully manufactured, while avoiding AW production, if the Ca:Prot of the milk retentate is decreased to ≤15.9 mg g −1 (calcium content = 1240 mg kg −1 at 7.81%, w/w, protein) prior to fermentation.

Original languageEnglish
Pages (from-to)72-80
Number of pages9
JournalInternational Dairy Journal
Volume93
DOIs
StatePublished - Jun 2019

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