Food Safety Key Lab of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China.
Anhui Rongda Poultry Development Co., Ltd, Xuancheng, China.
J Food Sci. 2022 Jun;87(6):2707-2717. doi: 10.1111/1750-3841.16154. Epub 2022 May 1.
The thyme oil emulsion was prepared using a novel type of nanocellulose obtained under different hydrolysis durations. The effect of different cellulose structures on interfacial adsorption properties of emulsion and loading efficiency of thyme oil were analyzed. The results showed that the cellulose particles became more homogeneous and hydrophilic after hydrolysis duration for 10 h. The loading efficiency of thyme oil for all emulsions reached about 80%. The retention rate of thyme oil decreased during the storage period, and rising temperatures will exacerbate the loss of thyme oil. Compared to Hd2, emulsions stabilized by Hd10 exhibited better stability and higher retention at all storage conditions. Cellulose emulsion can increase the dispersion and improve the stability of thyme oil. A smaller cellulose particle could make the emulsion become more stable. The experimental results confirmed that cellulose can be used as a stabilizer to encapsulate and transport hydrophobic active ingredient. PRACTICAL APPLICATION: The study results demonstrated that the emulsion transport system was developed using cellulose nanoparticles prepared by hydrolysis. The system can be used to load hydrophobic active substances (active peptides, curcumin, β-carotene, essential oils, etc.). It can protect the active substance from environmental damage, enhance water solubility and stability, and improve the bioavailability of the active substance.
采用不同水解时间制备的新型纳米纤维素制备了百里香精油乳液。分析了不同纤维素结构对乳液界面吸附性能和百里香精油负载效率的影响。结果表明，水解 10 h 后纤维素颗粒变得更加均匀和亲水。所有乳液的百里香精油负载效率均达到 80%左右。在储存期间，百里香精油的保留率下降，温度升高会加剧百里香精油的损失。与 Hd2 相比，Hd10 稳定的乳液在所有储存条件下均表现出更好的稳定性和更高的保留率。纤维素乳液可以增加分散性并提高百里香精油的稳定性。较小的纤维素颗粒可以使乳液更加稳定。实验结果证实，纤维素可用作乳化剂来包封和输送疏水性活性成分。实际应用：研究结果表明，采用水解制备的纤维素纳米颗粒开发了乳液输送系统。该系统可用于负载疏水性活性物质（活性肽、姜黄素、β-胡萝卜素、精油等）。它可以保护活性物质免受环境破坏，提高水溶性和稳定性，并提高活性物质的生物利用度。
