AQUACULTURE, vol.233, pp.495-511, 2004 (SCI-Expanded)
Lipid spray beads (LSB) composed singly or of mixtures of trilaurin, methyl palmitate (MP), menhaden stearine (MS), spermaceti and coconut oil were prepared and their performances were compared for delivering glycine and tyrosine to the early stages of fish larvae. Measures of performances of LSB included inclusion (IE), encapsulation (EE), retention (RE) and delivery efficiencies (DE) in addition to T50 (time to 50% retention) values. Tyrosine and both particulate and aqueous solutions of glycine were successfully incorporated within LSB using a melt-spray method, with incorporation efficiencies ranging from 81.0% to 91.1%. A maximum encapsulation efficiency of 21.0% was achieved for LSB composed of 100% MS with a core of particulate tyrosine.