Ru Han, Luan Fei, Shi Yajun, Zhang Xiaofei, Guo Dongyan, Zhai Bingtao, Sun Jing, Zhang Dingkun, Feng Liang, Zou Junbo
Shaanxi Province Key Laboratory of New Drugs, Chinese Medicine Foundation Research, Pharmacy College, Shaanxi University of Chinese Medicine Xianyang 712046 PR China
School of Pharmacy, Chengdu University of Traditional Chinese Medicine Chengdu 611137 Sichuan PR China.
RSC Adv. 2024 Oct 2;14(43):31367-31384. doi: 10.1039/d4ra05168h. eCollection 2024 Oct 1.
Essential oil of Schott (ATEO) have significant biological activity, but their physical and chemical properties are unstable and susceptible to interference by external factors, resulting in oxidation, decomposition, and isomerization of essential oils (EOs), ultimately diminishing the quality of EOs and escalating clinical risks. In this research, based on the concept of " combination of medicine and adjuvant, " the unsuitable stabilizer in Lingzhu powder prescription was modified with a SiO surface to become a stabilizer suitable for Pickering emulsion. The modified was synthesized, with a focus on exploring the surface modification of to facilitate its role as a stabilizer in Pickering emulsion. Thermal stability studies showed that modified -stabilized emulsion had higher EOs retention and lower peroxide value and hydrogen peroxide content. GC-MS analysis showed that the volatile components in the emulsion were more stable than the EOs. dissolution experiments showed that in the dissolution medium of artificial gastric juice and artificial intestinal juice, compared with the ATEO, the release in Pickering emulsion was faster within 48 h, indicating that the ATEO had been encapsulated in Pickering emulsion, which could improve the dissolution rate of EOs. This study convincingly demonstrates the potential of modified -stabilized Pickering emulsion to improve the thermal stability and dissolution rate of EOs.
肖特精油(ATEO)具有显著的生物活性,但其物理和化学性质不稳定,易受外部因素干扰,导致精油(EOs)氧化、分解和异构化,最终降低了精油的质量并增加了临床风险。在本研究中,基于“药辅结合”的理念,对灵珠粉处方中不合适的稳定剂进行了SiO表面改性,使其成为适合Pickering乳液的稳定剂。合成了改性产物,重点探索其表面改性,以促进其在Pickering乳液中作为稳定剂的作用。热稳定性研究表明,改性稳定剂稳定的乳液具有更高的精油保留率、更低的过氧化值和过氧化氢含量。气相色谱-质谱联用(GC-MS)分析表明,乳液中的挥发性成分比精油更稳定。溶出实验表明,在人工胃液和人工肠液的溶出介质中,与ATEO相比,Pickering乳液在48小时内的释放更快,表明ATEO已被包裹在Pickering乳液中,这可以提高精油的溶出速率。本研究令人信服地证明了改性稳定剂稳定的Pickering乳液在提高精油热稳定性和溶出速率方面的潜力。