Abstract
The aim of the study was to employ BET, GAB, and Peleg models for mathematical description of sorptive properties of market powder shampoos of natural origin. Two commercial powder shampoos of plant origin Sapindus mukorossi (A) and Acacia concinna (B) were used as study materials. The sorption isotherm of A. concinna powder shampoo was much higher in the standard reference system in comparison to S. mukorossi shampoo. The B shampoo had a higher monolayer capacity than product A. The examined process in both cases was physical in nature. The most useful for isothermal description turned out to be the theoretical BET equation and empirical Peleg model. They were characterized by high accuracy. Natural powder shampoos differed significantly in terms of physical parameters of particles and sorptive properties, which may suggest their different functional properties.
Highlights
The powder form of shampoos offers an interesting alternative to standard liquid cosmetics for hair washing
An attempt was undertaken in this study to employ theoretical models BET and GAB and an empirical Peleg model for the mathematical description of sorption isotherms plotted experimentally for commercial powder shampoos
Two commercial natural powder shampoos were selected for the study: shampoo A made of fruits of S. mukorossi and shampoo B made of fruits of A. concinna
Summary
The powder form of shampoos offers an interesting alternative to standard liquid cosmetics for hair washing. The advantages of the powdered form certainly include reduction or elimination of preservatives and stabilizers (radically reduced water content significantly inhibits the proliferation of microorganisms), ease of storage and convenience of transport with no possibility of weight loss due to product spillage, and reduced use of packages due to the concentrated form of a product, which should be mixed with water before use.[1]
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