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| Study on Preparation and Properties of Gelatin/CNC Composite Microcapsules Embedded with Rose Essence |
| Received:December 18, 2025 Revised:January 03, 2026 |
| DOI：10.11980/j.issn.0254-508X.2026.06.003 |
| Key Words:rose essence gelatin cellulose nanocrystals microcapsule sustained release |
| Fund Project:云南中烟工业有限责任公司科技项目（2024YL04）；云南中烟再造烟叶有限责任公司科技项目（GYCXJS-02）；浙江景兴纸业股份有限公司校企合作项目；齐鲁工业大学制浆造纸科学与技术教育部重点实验室开放基金（KF202010）。 |
| Author Name | Affiliation | Postcode | | ZHANG Jingru* | 1College of Light Industry Science and Engineering, Tianjin University of Science and Technology, Tianjin, 300457 | 300457 | | HU Mengxin | 1College of Light Industry Science and Engineering, Tianjin University of Science and Technology, Tianjin, 300457 | 300457 | | SONG Jiayi | 2China National Pulp and Paper Research Institute Co., Ltd., Beijing, 100102 | 100102 | | LIU Yingying* | 1College of Light Industry Science and Engineering, Tianjin University of Science and Technology, Tianjin, 300457 | 300457 | | WU Shijie | 3Yunnan Tobacco Reconstituted Tobacco Co., Ltd., Kunming, Yunnan Province, 650106 | 650106 | | LIU Hongbin* | 1College of Light Industry Science and Engineering, Tianjin University of Science and Technology, Tianjin, 300457 | 300457 |
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| Abstract:In order to improve the encapsulation stability and application effect of natural plant essences, GE/CNC composite microcapsules embedded rose essence were prepared by complex coacervation method, using gelatin (GE) and cellulose nanocrystals (CNC) as wall materials and rose essence as core material. The preparation conditions were optimized with the particle size of microcapsules and the embedding rate of rose essence as indexes, and the sustained release performance, storage stability, and release kinetics were investigated. The results showed that the optimal preparation conditions of GE/CNC composite microcapsules were as follows: the total wall material mass fraction was 2.0%, the wall material ratio was 6∶1, and the core-wall ratio was 1∶2. The particle size of the GE/CNC composite microcapsules prepared under optimal conditions was 1~2 μm with smooth spherical in shape, and the maximum encapsulation rate of rose essence was 81.5%, exhibiting good thermal stability. Compared with pure GE microcapsules, the pH stability and temperature stability of GE/CNC composite microcapsules were improved. After 24 days of storage at 4 and 25 ℃, the release rate of rose essence was 63.28% and 66.57%, respectively, showing good sustained release performance. The release process conformed to the first-order kinetic model. |
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