Abstract
Abstract The potential of nanocellulose synthesized from waste pili pulp to replace mineral-based ingredients in cosmetics has been determined. Waste Pili pulp is biomass that comes from the extraction process, in the production of Pili essential oils. Conventional methods of cellulose extraction: boiling, alkalization and bleaching methods were employed to isolate cellulose from lignocellulosic and hemicellulosic materials. Sulfuric acid hydrolysis at 64 wt % has been used to synthesize nanocellulose at varying reaction times (30, 45 and 60 minutes). Infrared spectrum of the isolated cellulose has an 85% match with α-cellulose. The conditions for acid hydrolysis produced micro-sized cellulose with an average particle size of 3.4×105 nm or 34 µm and exhibited broad particle size distribution due to rapid agglomeration of some of its particles. Surface morphology analysis showed the nanostructures of the synthesized micro/nanocellulose at different time regimes. The optical properties of the cellulose suspensions were found almost parallel to that of the conventional mineral-based nanoparticles used in cosmetics; verifying nanocellulose as a promising alternative to mineral-based ingredients for cosmetics
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