一种新型吸附剂，HOF-3@PU 的制备及其在可持续、高效净化地黄叶中梓醇和梓酚中的应用。

A novel absorbent, HOF-3@PU: Preparation and application for sustainable and efficient purification of catalpol and ajugol from leaves.

机构信息

College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, PR China.

Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, PR China.

出版信息

Nat Prod Res. 2024 Jan-Feb;38(2):287-293. doi: 10.1080/14786419.2022.2119968. Epub 2022 Sep 7.

DOI:10.1080/14786419.2022.2119968

PMID:36070589

Abstract

This study introduced the preparation of a novel HOF-loaded PU sponge (HOF-3PU) composite for the sustainable and efficient purification of catalpol and ajugol from leaves for the first time. HOF-3 was selected as the best adsorbent from the five synthesised HOFs. HOF-3PU was prepared by ultrasonication, and the loading conditions were optimised. The results showed that the optimum adsorption conditions are as follows: adsorption liquid volume: 160 mL, flow rate: 3.0 mL/min, pH: 6.0, concentration: 1.62 mg/mL for catalpol and 2.18 mg/mL for ajugol. The optimum desorption conditions are as follows: desorption agent: ethanol, volume fraction: 60%, flow rate: 2.0 mL/min, volume: 300 mL and pH: 6.0. Under the optimal process conditions, the adsorption capacities of catalpol and ajugol were 75.62 and 68.41 mg/g, the desorption rates were 78.5 and 86.4% and the purities were 38.7 and 36.5%, respectively.

摘要

本研究首次介绍了一种新型 HOF-负载 PU 海绵（HOF-3PU）复合材料的制备，用于从叶子中可持续、高效地纯化梓醇和京尼平苷。从合成的 5 种 HOF 中选择 HOF-3 作为最佳吸附剂。通过超声法制备 HOF-3PU，并优化了负载条件。结果表明，最佳吸附条件为：吸附液体积 160 mL，流速 3.0 mL/min，pH 值 6.0，浓度为 1.62 mg/mL 的梓醇和 2.18 mg/mL 的京尼平苷。最佳解吸条件为：解吸剂乙醇，体积分数 60%，流速 2.0 mL/min，体积 300 mL，pH 值 6.0。在最佳工艺条件下，梓醇和京尼平苷的吸附容量分别为 75.62 和 68.41 mg/g，解吸率分别为 78.5%和 86.4%，纯度分别为 38.7%和 36.5%。