Abstract: A method for promoting differentiation of cells in culture. At least one lipid transfer protein or lipid transfer protein analog is introduced into a culture medium at a concentration that is effective for obtaining differentiation of cells in the culture medium. The lipid transfer protein or lipid transfer protein analog includes at least one amino acid sequence having at least 80% homology with a sequence depicted in FIG. 2.

Abstract: A granulator construction including a cover having a first portion connected to the granulator frame along a vertical hinge line and a second portion in turn connected to the first portion along a horizontal hinge line whereby progressive opening of such cover portions along their respective hinges permits partially and fully open granulator positions whereby the feed means and the granulation chamber of the granulator are sequentially exposed. Furthermore, opposed muffler segments in part defining a feed slot are separable so that access to feed rolls etc. may be quickly gained. The lower of such muffler segments is further slidably removable entirely from the granulator construction so as to permit cleaning as when changeovers occur in the material being granulated.