In the biotechnology space, microdroplet microfluidic platforms have recently been proposed for a range of applications, from the monitoring of reaction kinetics, screening and biosensing to single cell sequencing . Most surfactants used in these applications are synthetic, small molecules or macromolecular, for example based on various types of perfluoropolyethers and associated copolymers for the stabilisation of fluorinated oil droplets, or Span 80, Tween derivatives and other lipids for the stabilisation of mineral or silicone oil droplets . Although tensioactive proteins have played a minor role for such technologies , they present interesting potential, for example to provide cytocompatibility and replace materials harmful to our environment.