Izvorni znanstveni članak
https://doi.org/10.17113/ftb.57.03.19.6197
The Influence of Meat Batter Composition and Sausage Diameter on Microbiota and Sensory Traits of Artisanal Wild Boar Meat Sausages
Ivica Kos
orcid.org/0000-0002-2126-2566
; Department of Animal Science and Technology, University of Zagreb Faculty of Agriculture, Svetošimunska 25, 10000 Zagreb, Croatia
Ana Zgomba Maksimović
orcid.org/0000-0003-2076-8562
; Department of Microbiology, University of Zagreb Faculty of Agriculture, Svetošimunska 25, 10000 Zagreb, Croatia
Marija Zunabović-Pichler
; Department of Food Science and Technology, BOKU University of Natural Resources and Life Sciences Vienna, Muthgasse 18, 1190 Vienna, Austria
Sigrid Mayrhofer
; Department of Food Science and Technology, BOKU University of Natural Resources and Life Sciences Vienna, Muthgasse 18, 1190 Vienna, Austria
Konrad J. Domig
; Department of Food Science and Technology, BOKU University of Natural Resources and Life Sciences Vienna, Muthgasse 18, 1190 Vienna, Austria
Mirna Mrkonjić Fuka
orcid.org/0000-0002-8494-8805
; Department of Microbiology, University of Zagreb Faculty of Agriculture, Svetošimunska 25, 10000 Zagreb, Croatia
Sažetak
In this study, the influence of meat batter composition and sausage diameter on the development of microbiota and sensory traits of traditional, spontaneously fermented wild boar meat sausages are evaluated. This research also demonstrates how principal component analysis (PCA) can be used to relate product sensory properties to particular microbial genotype and to select potential starter or adjunct culture. Generally, similar microbiological results were obtained in all types of products. The undesirable microbiota was either not detected at any sausage production stage or its number decreased below the detection limit in ripened sausages. The low growth rate of lactic acid bacteria (LAB) was consistent with the obtained pH and slow acidification rate. Although no differences in the composition of LAB species were noticed between sausage types (50S=50 % wild boar meat in small casing, 50L=50 % wild boar meat in large casing, 100S=100 % wild boar meat in small casing), a clear separation based on LAB genotypes could be observed. Upon quantitative descriptive analysis, significant differences in sensory attributes between sausage types were established. According to the PCA, the overall acceptability traits of sausages are closely linked to one Leuconostoc mesenteroides genotype (LM_4). Of all tested technological properties, LM_4 strains showed remarkable acidification ability, lowering the pH from pH=5.41 to 3.74, and pronounced proteolytic activity on skimmed milk as well as antagonistic activity against Staphylococcus aureus (DSM 20231) and Brochothrix thermosphacta (LMG 17208). Lipolytic and haemolytic activities were not detected, and all analyzed strains were susceptible to tested antibiotics and possessed no biogenic amine genes.
Ključne riječi
wild boar sausages; sausage diameter; sensory evaluation; lactic acid bacteria; Leuconostoc mesenteroides; starter culture selection
Hrčak ID:
227292
URI
Datum izdavanja:
30.9.2019.
Posjeta: 1.085 *