2018, Cilt 34, Sayı 1, Sayfa(lar) 043-048
Effect of Dry Aging Application on Sarkomeric Structure of M. Longissimus Thoracis and M. Longissimus Lumborum in Akkaraman Male Lambs
Hatice Ahu Kahraman1, Banu Kandil2, İlknur Tekdemir3, Emrah Sur3,Umit Gürbüz4,5
1Mehmet Akif Ersoy Universitesi, Veteriner Fakültesi, Besin Hijyeni ve Teknolojisi Anabilim Dalı, 15030, Burdur
2Siirt Universitesi, Veteriner Fakültesi, Histoloji ve Embriyoloji Anabilim Dalı, 56100,Siirt3Selçuk Universitesi, Veteriner Fakültesi, Histoloji ve Embriyoloji Anabilim Dalı, 42003, Konya
4Selçuk Universitesi, Veteriner Fakültesi, Besin Hijyeni ve Teknolojisi Anabilim Dalı, 42003, Konya
5Kırgızistan-Türkiye Manas Universitesi, Veteriner Fakültesi, Besin Hijyeni ve Teknolojisi Anabilim Dalı, 720044, Bişkek/Kırgızistan
Keywords: Akkaraman breed, dry aging, meat tenderness, sarcomere length

Aim: In the study, it was aimed to determine the changes in sarcomere lengths of M. longissimus thoracis (LT) and M. longissimus lumborum (LL) obtained from Akkaraman breed male lamb.

Materials and Methods: The LT and LL muscles obtained from Akkaraman breed male lambs of 11-month old were used. For dry aging, meats were aged for 14 days at +1 °C with 0.2-0.5 m/s airflow and 85% humidity. Samples were taken at the beginning (0), 7th and 14th days of the aging process, stained with Crossmon's triple staining method after routine histological procedures. Cross-sections were evaluated under a light microscope and sarcomere lengths were measured. Images were recorded digitally.

Results: It was determined that mean sarcomere lengths of LT and LL muscle groups ranged from 1,71 to 1,87 μm during the aging period. It was detected that the sarcomere lengths of LT muscles was increased up to 7th day, following it remained constant. The sarcomere lengths of LL muscle increased until the 14th day. It was also found that the mean of sarcomere lengths of LL muscles were longer than LT muscles during the aging period. There were significant differences among the muscle groups (p<0.05).

Conclusions: The results show that dry aging has significant effects on the sarcomere lengths of LL and LT muscles of Akkaraman male lambs. It is believed that the knowledge of the sarcomere length of different muscle groups is important for demonstrating the tenderness differences between muscle groups and for being able to obtain more tender meats.