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Preparation of Lignin Nanoparticles with Entrapped Essential Oil as a Bio-Based Biocide Delivery System.
ACS Omega ( IF 3.7 ) Pub Date : 2019-12-30 , DOI: 10.1021/acsomega.9b02793 Florian Zikeli 1 , Vittorio Vinciguerra 1 , Simona Sennato 2 , Giuseppe Scarascia Mugnozza 1 , Manuela Romagnoli 1
ACS Omega ( IF 3.7 ) Pub Date : 2019-12-30 , DOI: 10.1021/acsomega.9b02793 Florian Zikeli 1 , Vittorio Vinciguerra 1 , Simona Sennato 2 , Giuseppe Scarascia Mugnozza 1 , Manuela Romagnoli 1
Affiliation
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Lignin isolated from beech sawdust was used for the preparation of lignin nanoparticles (LNPs) with entrapped essential oil (EO) from cinnamon bark (Cinnamomum zeylanicum Blume), common thyme (Thymus vulgaris L.), and wild thyme (Thymus serpyllum L.) using a fast antisolvent method. Analysis of EO-loaded LNPs by pyrolysis-gas chromatography-mass spectrometry and Fourier transform infrared spectroscopy confirmed molecular interaction between EOs and LNPs. Quantification of EO incorporation into the LNPs and their in vitro release profiles were assessed by reversed phase high-performance liquid chromatography. Utilized EOs were, to different extents, successfully entrapped inside LNPs, which were attributed to extensive π-stacking between aromatic compounds in EOs like cinnamaldehyde, thymol, and carvacrol on one side and aromatic lignin units on the other side. In vitro release of common thyme and wild thyme EOs from EO-loaded LNPs was strongly delayed compared to the use of pure oil, giving a promising outlook for the development of new bio-based biocide delivery systems for wood preservation.
中文翻译：
截留的香精油作为生物基杀菌剂递送系统的木质素纳米颗粒的制备。
从山毛榉木屑中分离出的木质素用于从肉桂皮（Cinnamomum zeylanicum Blume），百里香（百里香）和野生百里香（百里香）中捕获的精油（EO）制备木质素纳米颗粒（LNP）。使用快速的抗溶剂方法。通过热解-气相色谱-质谱法和傅里叶变换红外光谱法分析负载EO的LNPs证实了EOs和LNPs之间的分子相互作用。通过反相高效液相色谱评估EO掺入LNPs的数量及其体外释放曲线。利用的EO在不同程度上成功地困在LNP内部，这归因于EO中的芳族化合物（如肉桂醛，百里酚，一侧为香芹酚，另一侧为芳烃木质素单元。与纯油的使用相比，从装有EO的LNP释放普通百里香和野生百里香EO的体外释放被大大延迟，这为开发用于木材防腐的新型生物基杀菌剂递送系统提供了广阔的前景。
更新日期：2020-01-14
中文翻译：
截留的香精油作为生物基杀菌剂递送系统的木质素纳米颗粒的制备。
从山毛榉木屑中分离出的木质素用于从肉桂皮（Cinnamomum zeylanicum Blume），百里香（百里香）和野生百里香（百里香）中捕获的精油（EO）制备木质素纳米颗粒（LNP）。使用快速的抗溶剂方法。通过热解-气相色谱-质谱法和傅里叶变换红外光谱法分析负载EO的LNPs证实了EOs和LNPs之间的分子相互作用。通过反相高效液相色谱评估EO掺入LNPs的数量及其体外释放曲线。利用的EO在不同程度上成功地困在LNP内部，这归因于EO中的芳族化合物（如肉桂醛，百里酚，一侧为香芹酚，另一侧为芳烃木质素单元。与纯油的使用相比，从装有EO的LNP释放普通百里香和野生百里香EO的体外释放被大大延迟，这为开发用于木材防腐的新型生物基杀菌剂递送系统提供了广阔的前景。
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