Novel submicron poly(urea-formaldehyde) and essence of jasmine microcapsules with enhanced sustained release

作者：Bao, Lin; Zhang, Fangfang; Chen, Tongyun; Cao, Jigang; Chen, Yashao^*; Bai, Yunshan

来源：Flavour and Fragrance Journal, 2015, 30(6): 459-466.

DOI：10.1002/ffj.3263

• jasmine essence
• urea-formaldehyde resin
• emulsion
• microcapsules
• release property

A novel type of sub-microcapsules was prepared using linoleic acid as the emulsifier for a nano-sized (55.5 nm) essence of jasmine emulsion. The final sub-microcapsules had well-defined spherical structures with a mean diameter of 860 nm, and were generated by in situ polymerization. They were consisted of an essence of jasmine emulsion as the core and poly (urea-formaldehyde) (PUF) as the shell. In comparison to microcapsules prepared by analogous methods and materials, these sub-microcapsules had a smaller particle diameter, resistance to boiling water and corrosion at pHs 3-11, a higher encapsulation efficiency of 92% and an increased length of release of approximately 22 days for the essence in water. The products reported in this study have potential applications in the flavor industry.

• 出版日期2015-11
• 单位陕西师范大学