Water release profiles of native VC and various biofilms obtained by monitoring the weight loss of the specimen in a desiccator over P2O5 at room temperature. Various parameters were changed in the formulations: the initial water content of the particles was either 50% or 80%. The particles were coated with lipids (dashed lines) or were kept uncoated (solid lines) prior to embedding in the synthetic biofilm lipid matrix. The particle/lipid ratio was either 2:1 or 5:1. Data is presented as mean (w/w) – S.D. (n = 3); reproduced with permission from Reference 28.