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. (June 2019)

• Record Type: Journal Article
• Authors: Schäfer, Johannes; Sebald, Karin; Dunkel, Andreas; Hofmann, Thomas; Rosenthal, Ines; Schuster, Regina; Atamer, Zeynep; Hinrichs, Jörg
• Is Part Of: International dairy journal. Volume 93(2019)
• Page Start: 72
• Page End: 80
• Publication Date: 2019-06
• Subjects: Dairying -- Periodicals; Industrie laitière -- Périodiques; Electronic journals; 338.1762142
• DOI: 10.1016/j.idairyj.2019.01.012
• Languages: English
• ISSNs: 0958-6946

Abstract

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.