title: Preparation and stabilization of D-limonene Pickering emulsions by cellulose nanocrystals.
abstract: The aim of this study was to investigate D-limonene Pickering emulsion stabilized by cellulose nanocrystals (CNCs) and factors that may affect its properties. CNCs were prepared by ammonium persulfate hydrolysis of corncob cellulose, and D-limonene Pickering emulsions were generated by ultrasonic homogenizing method. The morphology and size of the prepared emulsions with different CNCs concentrations were studied by optical microscopy and laser light diffraction. In addition, factors that may affect the stability of emulsions such as ionic concentration, pH and temperature were also studied. As indicated by the experiment data, when temperature rose, the stability to of emulsions would be increased, and the stability of emulsions was reduced with low pH or high salt concentration due to electrostatic screening of the negatively charged CNC particles. In conclusion, high stability of D-limonene Pickering emulsions could be obtained by CNCs.
authors.affiliation: State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China.
authors.forename: Chunxia
authors.initials: C
authors.lastname: Wen
authors.affiliation: State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China.
authors.forename: Qipeng
authors.initials: Q
authors.lastname: Yuan
authors.affiliation: State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China. Electronic address: lianghao@mail.buct.edu.cn.
authors.forename: Hao
authors.initials: H
authors.lastname: Liang
authors.affiliation: Department of Food Science, Harper Adams University, Newport, Shropshire, TF10 8NB England, United Kingdom.
authors.forename: Frank
authors.initials: F
authors.lastname: Vriesekoop
mesh_terms: D002482:Cellulose / Q000737:chemistry*; D053138:Cyclohexenes / Q000737:chemistry*; D004655:Emulsions / Q000138:chemical synthesis / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D006868:Hydrolysis; D000077222:Limonene; D053758:Nanoparticles / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D055672:Static Electricity; D013696:Temperature; D013729:Terpenes / Q000737:chemistry*; D013818:Thermogravimetry; D014961:X-Ray Diffraction
chemical_list: D053138:Cyclohexenes; D004655:Emulsions; D013729:Terpenes; D002482:Cellulose; D000077222:Limonene
keywords: Cellulose nanocrystals; Pickering emulsions; Stability; d-Limonene