GÜNEYDOGU ANADOLU BÖLGESİ'NDE DAGILIŞ GÖSTEREN TATLISU SALYAN GOZU Bithynia tentaeu/ata (L., 1758) (GASTROPODA: PROSOBRANCBIA)'NIN YAG ASİTİ İÇERİGİ

Yıl 2009, Cilt: 13 Sayı: 1, 28 - 33, 01.06.2009

İhsan Ekin Mehmet Başhan Rıdvan Şeşen

Öz

Bu çalışmada, Nisan 2007 tarihinde Mardin ilinin Sultanköy Köyü'nden toplanan tatlısu salyangozu Bithynia
tentaculata'nın total vücut lipitleri, ince tabaka kromatografi ile fraksiyonlandı. Salyangozun, total vücut lipitleri
ile fosfolipit ve nötral lipit fraksiyonundaki yağ asitleri, gaz kromatografi ve gaz kromatografi-kütle
spektrometresi (GC-MS) ile analizlendi. Analizlerde, doymuş yağ asitlerinden C1 2:0, C1 4 :0, C1 5 :0, Cl6:0,
Cl 7:0, C18:0; tekli doymamış yağ asitlerinden C16:1ro 7, C18:1co9, C20:1co9 ve çoklu doymamış yağ asitlerinden
Cl8:2ro6, C18:3ro3, C20:2ro6, C20:4ro6 ve C20:5ro3 asitler saptandı. Tek karbonlu ve 20 karbonlu çoklu
doymamış yağ asitlerinin yapılan, gaz kromatografı-kütle spektrometre ile doğrulandı. Lipit fraksiyonlan arasında
bu bileşenlerin yüzde değerleri karşılaştınldı. Yüzde dağılımda en çok C16:0, Cl6:lco 7, C18:1co9, Cl8:3ro 3 ve
C20:4co6 asitler tespit edildi. Fosfolipit, nötral lipit ve total lipit yüzde içeriğinde bazı farklılıklar tespit edildi.
örneğin, total doymuş yağ asiti yüzdesi (o/o4 5.1) ile total tekli doymamış yağ asiti yüzdesi (% 28.0) en fazla
nötral lipitte; total çoklu doymamış yağ asiti yüzdesi (o/o46.5) ise en çok fosfotipİtte saptandı. Eikosanoidlerin
öncül maddesi olan C20:4ro6 ve C20:5ro3 asitlerin yüzde oranlan nötral ve total lipit analizlerine göre fosfolipit
fraksiyonunda daha fazla bulundu.

Anahtar Kelimeler

Yağ Asitleri, Bithynia tentaculata, Tatlısu Salyango

Kaynakça

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