Potamon persicum Pretzmann,1962’nin et verimi ve kimyasal bileşimi

Abstract

Bu çalışmada, xxxxxxxx avlanan 15 dişi ve 87 erkek olmak üzere toplam 102 tatlı su yengecinin (Potamon persicum Pretzmann, 1962) morfometrik ölçümleri, et verimi, etin rutubet, pH, protein, yağ, yağ asitleri ve kül miktarları belirlenmiştir. Et verimi erkek yengeçlerde %12.75±0.38g, dişilerde ise %10.93±0.32g olarak saptanmıştır. Rutubet ve protein miktarlarının dişi yengeçlerde erkek yengeçlere göre daha fazla olduğu görülmüştür. Yağ miktarı erkek yengeçlerde %0.96±0.31, dişi yengeçlerde %0.97±0.35, kül miktarı ise erkeklerde %2.68±0.04, dişilerde %2.66±0.03 olarak saptanmıştır. Dişi ve erkek yengeçlerde genel toplamda tekli doymamış yağ asitleri (dişi:erkek %33.56:%37.44) içeriğinin, çoklu doymamış (dişi:erkek %24.19:%21.62) ve doymuş yağ asitleri (dişi:erkek %28.11:%32.85) içeriğinden daha yüksek miktarda olduğu tespit edilmiştir. Tatlı su yengecinin (Potamon persicum Pretzmann, 1962) etinde omega-3 (erkek yengeç % 8.54, dişi yengeç %14.85), omega-6 (erkek yengeç % 10.04, dişi yengeç % 5.46) ve omega-9 (erkek yengeç % 26.65, dişi yengeç %19.14), yağ asitleri açısından en yüksek yağ asidi omega-9 (oleik asit) olarak bulunmuştur.

Keywords

• Et verimi
• protein
• omega-9
• yağ asitleri
• yengeç

Meat yield and chemical composition of freshwater crab (Potamon persicum Pretzmann, 1962)

Abstract

In this study, morphometric measurement, meat yield, moisture, pH, protein, fat, fatty acids and ash content were determined in a total of 102 (15 female and 87 male) freshwater crab (Potamon persicum Pretzmann,1962) caught from Aşağı and Yukarı Çay of Pertek, Tunceli. Meat yield in male and in female crabs were found to be as 12.75±0.38% and 10.93±0.32%, respectively. It has been observed that moisture and protein amounts were higher in female crabs than in male crabs. The amounts of fat were 0.96±0.31% in male crabs and 0.97±0.35% in female crabs. The amount of ash was 2.68±0.04% in male crabs and 2.66±0.03% in female crabs. It was determined that the content of monounsaturated fatty acids (female:male 33.56%:37.44%) in female and male crabs were higher than polyunsaturated (female:male 24.19%:21.62%) and saturated fatty acid (female:male 28.11%:32.85%) content. The highest fatty acid was found to be as omega-9, in terms of omega-3 (male crabs 8.54%, female crabs 14.85%), omega-6 (male crabs 10.04%, female crabs 5.46%) and omega-9 fatty acids (male crabs 23.65%, female crabs 19.14%) in freshwater crab (Potamon persicum Pretzmann, 1962) meat.

Keywords

• Crab
• fatty acids
• meat yield
• omega-9
• protein.

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