milk fat globule membranes ( mfgm ) and rough endoplasmic reticulum ( rer ) membranes were isolated from milk and lactating mammary gland from the cow and were characterized by biochemical and electron microscope methods in terms of gross composition ( proteins , phospholipids , neutral lipids , cholesterol , rna , and dna ) and purity .
C0026131
milk
C0006141
mammary