title: Influence of various preservatives on the quality of minced beef under modified atmosphere at chilled storage.
abstract: The effect of preservatives on microbial quality, pH, drip-loss, roasting-loss, colour, and sensorial properties of modified atmosphere packaged (70% O(2) and 30% CO(2)) minced beef (M. semimembranosus) stored at (2±0.5°C) for 12days was investigated. Beef cubes (approx. 20×20×20mm size) were immersed in solutions of 2% and 5% lactic acid, 2% lactic acid combined with 0.5% sodium ascorbate, 20% potassium lactate and 20% potassium sorbate before mincing. Addition of lactic acid was associated with pH drop, which increased drip-loss and roasting-loss. Application of all additives inhibited aerobic micro-organisms (10(3)-10(4)CFUg(-1) on day 12) compared to reference sample (9×10(5)CFUg(-1) on day 12). Lactic acid discoloured samples, while sodium ascorbate seemed to improve colour stability. Despite good visual colour characteristics, potassium sorbate treated samples were organoleptically unacceptable with massive off-flavour.
authors: Department of Refrigeration and Livestock Products Technologies, Faculty of Food Science, Corvinus University of Budapest, Ménesi út 43-45, 1118 Budapest, Hungary.
authors: L
authors: L
authors: Friedrich
authors: I
authors: I
authors: Siró
authors: I
authors: I
authors: Dalmadi
authors: K
authors: K
authors: Horváth
authors: R
authors: R
authors: Agoston
authors: Cs
authors: C
authors: Balla