Effects of sire type and sex on pork muscle exopeptidase activity, natural dipeptides and free amino acids
✍ Scribed by Eva Armero; Manuel Baselga; M-Concepción Aristoy; Fidel Toldrá
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 82 KB
- Volume
- 79
- Category
- Article
- ISSN
- 0022-5142
No coin nor oath required. For personal study only.
✦ Synopsis
Five sire types, namely Danish Duroc (DU), Dutch Large White (LW D ), English Large White (LW E ), Belgian Landrace  Landrace (BL  LR) and Belgian Landrace (BL), were mated with LR  LW crossbred sows. Dipeptidylpeptidase and aminopeptidase activities and free amino acid and natural dipeptide contents were compared between the offspring of each sire type. Regarding the sire type effect, signi®cant differences were detected in dipeptidylpeptidase I and IV and alanyl and pyroglutamyl aminopeptidase activities, with activity being lowest in the offspring of BL sires. Signi®cant differences were also observed between sire types in the content of aspartic acid, glutamic acid, serine, glycine, glutamine, histidine and arginine. Taking into account the role of exopeptidases and free amino acids in taste development, the meat from BL-sired pigs may be considered as inferior in generating ¯avour precursors and thus not appropriate to undergo a dry-curing process.