... high energy efficiency is an energy efficient evaporator. But a new vacuum rotary evaporator units have restrictive, if the evaporation ... to solve, a new vacuum rotary evaporator unit is a better form.Vacuum rotary evaporator unit for use in evaporation, ... potassium sorbate;Day of oil: lecithin, VE, cod liver oil, oleic acid, glycerol, fatty acids, waste oil, alkyl polyglycosides, alcohol ...