African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12486

Full Length Research Paper

Changes of biochemical and sensory characteristics in the musculus longissimus dorsi of the fallow deer in the early phase post-mortem and during maturation

Dragan Tešanović1, Bojana Kalenjuk1*, Dušanka Tešanović2, ÄorÄ‘e Psodorov3, Zoran Ristić1 and Vladimir Marković1
  1University of Novi Sad, Faculty of Science, Trg D. Obradovića 3, 21000, Novi Sad, Serbia. 2Universitiy of Novi Sad, Faculty of Medicine, Hajduk Veljkova 3,21000 Novi Sad, Serbia. 3Institute of Food Technology Novi Sad, Bulevar cara Lazara 1, 21000 Novi Sad, Serbia.
Email: [email protected]

  •  Accepted: 26 August 2011
  •  Published: 21 September 2011

Abstract

 

Our researches encompassed determination of biochemical, technological and sensory characteristics in the muscle of the fallow deer (Cervus [Dama] dama L.) in the early phase post-mortem and during maturation. In the early phase post-mortem, pH, glycogen, total amount of pigments (TP), plasticity and water-binding capability (WBC) were determined. During maturation, the following changes were followed: pH values, glycogen, WBC, plasticity, colors (sensory and instrumental measurement), the contents of alpha-amino nitrogen (NH2-N) and non-protein nitrogen (NPN), together with the definition of sensory characteristics of texture and odor. By analyzing results, it was concluded that at 3 h post-mortem, low pH (5.49) was determined and low WBC (12.17 cm2), which pointed to the fact that due to extreme tiring and fast decomposition of glycogen, the ultimate value of pH was reached, while glycolytic enzymes were almost deactivated. A slight increase of pH and WBC during the period of maturation could be explained as a consequence of proteolytic activity and changes in proteins, which at the same time provoked increase of alpha-amino nitrogen (NH2-N) and non-protein nitrogen (NPC). Sensory analysis showed that the muscle of the fallow deer was most appropriate on the fifteenth day of maturation for both processing and culinary processing.

 

Key words: Biochemical changes, technological properties, sensory analysis of meat quality of the fallow deer.