In this work,the medium internal phase O/W Pickering emulsions stabilized with bamboo shoots nanocellulose(BSNC)was successfully fabricated.The nanocellulose extracted from bamboo shoots with an average width of 56.37...In this work,the medium internal phase O/W Pickering emulsions stabilized with bamboo shoots nanocellulose(BSNC)was successfully fabricated.The nanocellulose extracted from bamboo shoots with an average width of 56.37 nm and height of 7.44 nm showed great potential as an emulsifier in the Pickering emulsions.The effects of BSNC content,oil-water ratio and emulsification process on the structure,stability and rheology of the resultant Pickering emulsions was explored.The obtained emulsion with the BSNC content of 0.5 wt%at the oil to water volume ratio of 5:5 had a lower particle size of around 25μm.With the increasing BSNC content,the emulsions presented increased droplet size,and even demulsification occurred.Interestingly,the physicochemical properties of the emulsions could be significantly improved through twice shearing,which effectively reduced droplet size.The surface coverage was above 100%for the Pickering emulsions stabilized with the BSNC content of 0.5%-1.1%.With the increasing BSNC content,the apparent viscosity was increased first and then decreased,and all emulsions showed elastic behaviors.This work would provide theoretical guidance for preparing medium or high internal phase Pickering emulsions stabilized with nanocellulose.展开更多
Liquid crystal emulsifiers are widely used in skincare formulations due to their unique structural properties.In formulation development,components such as thickeners,oils,and co-emulsifiers significantly affect liqui...Liquid crystal emulsifiers are widely used in skincare formulations due to their unique structural properties.In formulation development,components such as thickeners,oils,and co-emulsifiers significantly affect liquid crystal formation.Using polyglyceryl-10 stearate as an emulsifier,we investigated the effects of thickeners,oils,higher alcohols,and fatty acids on liquid crystal structure through controlled single-factor experiments.The results showed that xanthan gum(thickener),pentaerythrityl tetraisostearate(oil),and cetearyl alcohol(higher alcohol)produced optimal liquid crystal formation,with fatty acids providing additional benefits.Homogenization speed had the most pronounced impact-both excessively high and low speeds negatively affected the liquid crystal structure.展开更多
基金This work was supported by the National Nature Science Foundation of China(32072177).
文摘In this work,the medium internal phase O/W Pickering emulsions stabilized with bamboo shoots nanocellulose(BSNC)was successfully fabricated.The nanocellulose extracted from bamboo shoots with an average width of 56.37 nm and height of 7.44 nm showed great potential as an emulsifier in the Pickering emulsions.The effects of BSNC content,oil-water ratio and emulsification process on the structure,stability and rheology of the resultant Pickering emulsions was explored.The obtained emulsion with the BSNC content of 0.5 wt%at the oil to water volume ratio of 5:5 had a lower particle size of around 25μm.With the increasing BSNC content,the emulsions presented increased droplet size,and even demulsification occurred.Interestingly,the physicochemical properties of the emulsions could be significantly improved through twice shearing,which effectively reduced droplet size.The surface coverage was above 100%for the Pickering emulsions stabilized with the BSNC content of 0.5%-1.1%.With the increasing BSNC content,the apparent viscosity was increased first and then decreased,and all emulsions showed elastic behaviors.This work would provide theoretical guidance for preparing medium or high internal phase Pickering emulsions stabilized with nanocellulose.
文摘Liquid crystal emulsifiers are widely used in skincare formulations due to their unique structural properties.In formulation development,components such as thickeners,oils,and co-emulsifiers significantly affect liquid crystal formation.Using polyglyceryl-10 stearate as an emulsifier,we investigated the effects of thickeners,oils,higher alcohols,and fatty acids on liquid crystal structure through controlled single-factor experiments.The results showed that xanthan gum(thickener),pentaerythrityl tetraisostearate(oil),and cetearyl alcohol(higher alcohol)produced optimal liquid crystal formation,with fatty acids providing additional benefits.Homogenization speed had the most pronounced impact-both excessively high and low speeds negatively affected the liquid crystal structure.
