Fig.1.
Comparison of the pseudoternary phase diagrams and single-phase lutein microemulsion region (grey) using marigold petal powder (MPP), deionized water (DI water) and various surfactants in combination with the most efficient co-surfactant (SCRmax): a) Lec:1-PrOH (2:1), b) Sap: 1-PrOH (1:2), c) Rhl: EtOH (2:1), d) SMP: 1-PrOH (1:5), e) T20: 1-PrOH (1:50), f) T80: 1-PrOH (2:1), g) S20: 1-PrOH (1:50) and h) SDS: EtOH (1:2). Lower panel: An example of actual samples prepared with SMP: 1-PrOH (1:5): A) un-hydrated, B) gelled, C) turbid, D) multiphase, E) transparent and mono-phasic ME.