载香精Pickering乳液型多核胶囊制备及缓释性能研究

doi:10.3969/j.issn.2097-2806.2025.03.003

摘要/Abstract

摘要： 天然可降解胶囊为持续释放香味提供了一个平台，然而，封装效率低、难以持续释放等挑战仍然限制了载香精胶囊的应用。本工作利用天然材料海藻酸钠和明胶溶液作为水相，薰衣草香精溶解在辛癸酸甘油酯（GTCC）中形成油相，SiO₂纳米粒子作为固体乳化剂，乳化形成了O/W型的载香精Pickering乳液，利用滴注法以乳液为模板制备了载香精的多核胶囊。结果表明，制备的多核胶囊具有球形形态和多核结构，并且多核胶囊的封装率高达99.6%。此外，载香精Pickering乳液型多核胶囊在25 ℃下能缓释香精，49天释放了32.5%左右，展现出了良好缓释性能。这归功于多核结构、Pickering乳液界面纳米颗粒膜和水凝胶壳对封装香精的保护作用。本研究有望为香精缓释技术在食品、化妆品、纺织品等领域的应用提供新的策略。

关键词: 香精, Pickering乳液, 多核胶囊, 包封率, 缓释

Abstract:

Naturally degradable capsule provides a platform for sustained fragrance release. However, practical challenges such as low encapsulation efficiency and difficulty in sustained release are still limited in using fragrance-loaded capsules. In this work, the natural materials sodium alginate and gelatine are dissolved and act as the aqueous phase, lavender is dissolved in caprylic/capric triglyceride (GTCC) as the oil phase, and SiO₂ nanoparticles with neutral-wettability as a solid emulsifier to form O/W Pickering emulsions simultaneously. Finally, multi-core capsules are prepared using the drop injection method with emulsions as templates. The results show that the capsules have been successfully prepared with a spherical morphology and multi-core structure, and the encapsulation rate of multi-core capsules can reach up to 99.6%. In addition, the multi-core capsules possess desirable sustained release performance, the cumulative sustained release rate of fragrance at 25 ℃ over 49 days is only 32.5%. It is attributed to the significant protection of multi-core structure, Pickering emulsion nanoparticle membranes, and hydrogel network shell for encapsulated fragrance. This study is designed to deliver a new strategy for using sustained-release technology with fragrance in food, cosmetics, textiles, and other fields.

Key words: fragrance, Pickering emulsion, multi-core capsules, encapsulation efficiency, sustained release

中图分类号:

TQ658

刘心怡, 陈娟博, 侯皓月, 侯佳伟, 石美玲, 曾飒, 孟涛. 载香精Pickering乳液型多核胶囊制备及缓释性能研究[J]. 日用化学工业（中英文）, 2025, 55(3): 286-294.

Xinyi Liu, Juanbo Chen, Haoyue Hou, Jiawei Hou, Meiling Shi, Sa Zeng, Tao Meng. Preparation and sustained release performance of multi-core capsules based on fragrance-loaded Pickering emulsions[J]. China Surfactant Detergent & Cosmetics, 2025, 55(3): 286-294.

图/表 9

参考文献 22

[1]	Marianna M, Claudio R, Constantina S, et al. Encapsulation of volatile compounds in liquid media: Fragrances, flavors, and essential oils in commercial formulations[J]. Advances in Colloid and Interface Science, 2021, 298: 102544.
[2]	Zhou Wenhua, Yang Huirong, Yue Qinglei, et al. The recent progress of micro-encapsulation in essence[J]. Flavour Fragrance Cosmetics, 2003 (4): 29-33.
[3]	Zhang Qianjie, Wang Pingli, Zhang Dongmei, et al. Research progress and cosmetic applications of Pickering emulsion stabilized with natural solid particles[J]. Fine Chemicals, 2022, 39 (12): 2377-2386.
[4]	Yu Mingying, Wang Jing, Yang Cheng, et al. Advances in the applications of Pickering emulsion in cosmetics[J]. China Surfactant Detergent & Cosmetics, 2019, 49 (6): 398-402.
[5]	Yana C, Yunita S, Dian S, et al. Pickering emulsions as vehicles for bioactive compounds from essential oils[J]. Molecules, 2022, 27 (22): 7872.
[6]	Weria W, Shima Y, Nawroz T, et al. Targeted delivery and controlled released of essential oils using nanoencapsulation: A review[J]. Advances in Colloid and Interface Science, 2022, 303: 102655.
[7]	Isabel T C, Berta N E, Lucia S. Application of microencapsulated essential oils in cosmetic and personal healthcare products: a review[J]. International Journal of Cosmetic Science, 2016, 38 (2): 109-119.
[8]	Ali S D, Maryam N N, Vincent K, et al. Recent advances in food colloidal delivery systems for essential oils and their main components[J]. Trends in Food Science & Technology, 2020, 99: 474-486.
[9]	Zhou Wei, Liu Ying. Study on the application of sustained-release technology for fragrance in daily chemical products[J]. China Cleaning Industry, 2021 (8): 32-36.
[10]	Wu C J, Zhang W F, Dai S U, et al. Copper(I)-iodide clusters as carriers for regulating and visualizing release of aroma molecules[J]. ACS Applied Materials & Interfaces, 2023, 15 (4):5954-5962.
[11]	Hyomin L, Chang H C, Alireza A, et al. Encapsulation and enhanced retention of fragrance in polymer microcapsules[J]. ACS Applied Materials & Interfaces, 2016, 8 (6): 4007-4013.
[12]	He L, Hu J, Deng W J. Preparation and application of flavor and fragrance capsules[J]. Polymer Chemistry, 2018, 9 (40): 4926-4946.
[13]	Hao Yang, Wang Changyun, Fan Jianru, et al. Common cosmetic preparation technologies (Ⅱ) powerful controlled release tool: microencapsulation(Ⅱ)[J]. China Surfactant Detergent & Cosmetics, 2022, 52 (8): 805-811.
[14]	Yu Linlin, Xie Xinghui, Shi Xiaodi, et al. Preparation, characterization and application of lavender fragrance nanocapsules[J]. China Surfactant Detergent & Cosmetics, 2019, 49 (8): 519-525.
[15]	Ge Yanrui, Feng Wei. Preparation of rose fragrance microcapsules by in-situ polymerization[J]. China Surfactant Detergent & Cosmetics, 2003 (5): 337-339.
[16]	Joana F P, Vania I S, Juliana F M, et al. Biodegradable polymers for microencapsulation systems[J]. Advances in Polymer Technology, 2022 (2): 41-43.
[17]	Zhang S N, Ye T T. Preparation of natural composite microcapsules containing orchid black currant fragrance and its sustained-release properties on hair bundle[J]. Journal of Polymers and the Environment, 2021, 30 (1): 11-15.
[18]	Wang Hui, Bai Yan, Yang Bo, et al. Properties and effect on controlled release of essential oil microcapsules of sodium alginate/microcrystalline cellulose composite wall[J]. Food Science and Technology, 2020, 45 (2): 111-116.
[19]	Wang Jiubiao, Chu Hong. Study on UV-screen polydopamine nanocapsules for sustained release of fragrance[J]. China Surfactant Detergent & Cosmetics, 2018, 48 (10): 582-588.
[20]	Treeudom T, Wanichwecharungruang S P, Seemork J, et al. Fragrant chitosan nanospheres: controlled release systems with physical and chemical barriers[J]. Carbohydrate Polymers, 2011, 86 (4): 1602-1609.
[21]	Zhang Yuanxia, Ma Jianzhong, Xu Qunna, et al. Polyelectrolyte complex from cationized casein and sodium alginate for fragrance controlled release[J]. Colloids and Surfaces B: Biointerfaces, 2019, 3 (17): 439-444.
[22]	Singh N, Sheikh J. Novel chitosan-gelatin microcapsules containing rosemary essential oil for the preparation of bioactive and protective linen[J]. Industrial Crops and Products, 2022, 178: 114549.

Material structure	Release rate	Reference
multi-core microcapsules	32.5% in 49 days	this work
single-core microcapsules	20 h	[21]
single-core microcapsules	17.68% in 7 days	[17]
single-core microcapsules	15.49% in 120 h	[22]