A COMPARATIVE LIPID-COMPOSITION OF MILK-FAT GLOBULE MEMBRANES ISOLATED FROM MILK OF MURRAH AND NILI-RAVI BREEDS OF BUFFALO

The lipid composition of FGM isolated from Murrah and Nili Ravi birth of buffalo was investigated. The yields of MFGM from buffalo are simil ar in both the breeds. Protein constituted 58% in Nili Ravi and 58.7% in Murrah, respectively. Total lipids constituted 40.3 and 36.5 % resp ectively. The total neutral lipids of FGM (Murrah 73 % and Nili Ravi, 77.1 %). were slightly higher in breeds of Nili Ravi than Murrah. Amon gst neutral lipids TG constituted the major fraction (48.8 % in Nili R avi and 52.5 % in Murrah). The proportions of both high and low molecu lar weight TG am slightly higher in Murrah than Nili Ravi. The TG are followed by DG, FFA, CL, MG and CE in Nili Ravi, whereas TG are follow ed by DG, MG, FFA, CL and CE in Murrah. The proportion of DG (12.8 % i n Nili Ravi and 7.1 % in Murrah), FFA (6.7 % in Nili Ravi and 4.3 % in Murrah), CL (4.1 % in Nili Ravi and 2.9 % in Murrah) are higher in Ni li Ravi. PE, PC, SPH constituted the major phospholipids of FGM from b oth the breeds followed by PS and PI. The proportion of PE were higher in Nili Ravi (38.1 %) than Murrah (30.2 %). Palmitic (C16:0) and olei c (C18:0) acids are the major fatty acids of total lipids of MFGM from both the breeds. The other fatty acids detected were in the order of C14:0, C18:O, C12:0, C10:0, C14:1, C18:2, C14:2, C20:49 C16:1, respect ively.