Fabrication of bioinspired edible liquid marble with phase transition and tunable water barrier property

Based on aphid wax-honeydew marble and the hydrophobic wax structure of lotus and its derived applications with superareophilic and superhydrophobic properties,edible carnauba wax and beeswax particles were mixed and utilized to mimic lotus wax and wrap liquid,thus forming liquid marbles(LMs).Through the utilization of continuous production system(CPS),wax as an interfacial surfactant,water and solid,air-phase or mixed-phase marble content was produced.The edible liquid marble(ELM)could encapsulate water and food droplets.Edible solid marble(ESM)and edible solid hollow marbles(ESHMs)could be fabricated by applying pectin or syrup.Moreover,through the heating of wax powders with different melting temperatures,stable tablets and hollow capsules could be produced.The wax powder as interfacial surfactant could firmly bind with pectin through hydrogen bonds on ESM.The edible LMs can therefore be applied for residue reduction,corrosion reduction,biohazard prevention and cleaning in the food industry.The other phase LMs could act as novel tools in the pharmaceutical and food industries with the above-mentioned water transport,preservation,sustained releasing and selective releasing abilities.

One Step and In Situ Synthesis of Edible Lubricant-infused Surface Using All-in-one Solution

Edible Lubricant-Infused Surface(ELIS)was fabricated through antisolvent method by adding ethyl oleate(lubricant/antisolvent),ethanol(solvent)and shellac(solute/base layer of ELIS)into an all-in-one solution to in-situ prepare ELIS through single step of solvent evaporation.The ELIS comprising sub-micro-to micro-scaled shellac particles shows water and food liquid slippery,transparency,stability against abrasion and lubricant retaining ability against sheer force.Using all edible material to fabricated ELIS is a more efficient route for application when compared with other Lubricant-Infused Surface(LIS).Traditional fabrication for LIS included steps such as:base layer fabrication,lubricant infusion,excess lubricant removal,UV light treatment and chemical etching.The method proposed in this article could further simplify the preparation to an all-in-one solution and simplify the synthesis process to only 60-degree heating.Furthermore,Shellac ELIS coating could withstand abrasion and hold performance when compared with other ELIS coatings.