Abstract
ABSTRACTSpray‐dried powders with 50% butteroil encapsulated in sucrose were double‐encapsulated by dispersion in a molten matrix of vegetable waxes (high‐pressure‐treated by a patented process) followed by pressure treating at 414 KPa and sieving. A 20–40% increase in particle size resulted from double encapsulation and powders were less flowable (P < 0.01). Scanning Electron Microscopy of double‐encapsulated powders showed one or more sucrose‐encapsulated particles embedded in a matrix of solid vegetable wax. Double coating reduced moisture uptake by 20%, possibly ameliorating the need for special packaging during storage. The flow and mechanical behavior of the encapsulated powders were different (P < 0.05) from the other powders studied.
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