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Wu X, Wang Y, Qin B, Shao G, Wang Z, Wang T, Fu Y. A nanocellulose molecularly imprinted membrane: Preparation, characterization and application in targeted separation of taxane 10-deacetylbaccatin III. Int J Biol Macromol 2023; 253:126794. [PMID: 37699463 DOI: 10.1016/j.ijbiomac.2023.126794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 08/30/2023] [Accepted: 09/05/2023] [Indexed: 09/14/2023]
Abstract
Targeted separation of active phytochemicals is urgently needed in the natural medicine field. In this paper, due to the natural porosity and high biocompatibility of cellulose, a nanocellulose membrane combined with surface molecular imprinting was successfully prepared; the efficient nanocellulose-based molecular imprinted membrane (NC-MIM) provided good adsorption for the targeted separation of phytochemicals such as 10-deacetylbaccatin III (10-DAB), an essential intermediate in the synthesis of the anticancer drug paclitaxel. Through a series of characterization and adsorption experiments, the adsorption mechanism of NC-MIM was determined. At pH 8.0 and temperatures of 20 °C-40 °C, the maximum capacity of NC-MIM for adsorption of 10-DAB reached 66.90 mg g - 1, and the content of 10-DAB was dramatically increased 17.5-fold after adsorption. The specific adsorption results showed that NC-MIM had excellent capacity for targeted separation of 10-DAB from among taxane structural analogues. Even after ten cycles, NC-MIM demonstrated a remarkable adsorption capacity of 86.43%, thereby indicating exceptional selectivity and stability. The successful implementation of NC-MIM for green, safe, and efficient enrichment of phytochemicals from plants provides a promising new approach and valuable insights into its practical application.
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Affiliation(s)
- Xiaodan Wu
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, 150040 Harbin, PR China; Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin 150040, China; The College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, 150040 Harbin, PR China
| | - Ying Wang
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, 150040 Harbin, PR China; Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin 150040, China; The College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, 150040 Harbin, PR China
| | - Bingyang Qin
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, 150040 Harbin, PR China; Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin 150040, China; The College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, 150040 Harbin, PR China
| | - Guansong Shao
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, 150040 Harbin, PR China; Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin 150040, China; The College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, 150040 Harbin, PR China
| | - Zihan Wang
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, 150040 Harbin, PR China; Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin 150040, China; The College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, 150040 Harbin, PR China
| | - Tao Wang
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, 150040 Harbin, PR China; Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin 150040, China; The College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, 150040 Harbin, PR China
| | - Yujie Fu
- The College of Forestry, Beijing Forestry University, 100083 Beijing, PR China.
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Wang Z, Zhang Y, Zhang S, Ge M, Zhang H, Wang S, Chen Z, Li S, Yang C. Natural xylose-derived carbon dots towards efficient semi-artificial photosynthesis. J Colloid Interface Sci 2023; 629:12-21. [PMID: 36150244 DOI: 10.1016/j.jcis.2022.09.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 08/25/2022] [Accepted: 09/06/2022] [Indexed: 10/14/2022]
Abstract
Photosynthesis by plants stores sunlight into chemicals and drives CO2 fixation into sugars with low biomass conversion efficiency due to the unoptimized solar spectrum utilization and various chemical conversion possibilities that follow H2O oxidation. Expanding the solar spectrum utilization and optimizing the charge transfer pathway of photosynthesis is critical to improving the conversion efficiency. Here, a group of carbon dots (CDs) with distinct content of sp2 CC domain are prepared by one-step carbonization of natural xylose, which penetrated natural chloroplasts and integrated with the grana thylakoid to promote in vitro photosynthesis. Structural characterization and electrochemical results reveal the positive impact of graphitization degree on the electron transport capacity of CDs. Classic Hill reaction and ATP production demonstrate the enhanced photosynthetic activity resulting from the CDs-mediated electron transfer of photosystem II. In-depth studies of the structure-function relationship prove the synergistic effect of intensified biotic-abiotic interaction between CDs and chloroplast, lower charge transfer resistance, and extended light absorption. This work posts a promising method to optimize electron transport and improve natural photosynthesis using artificial interventions.
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Affiliation(s)
- Zirui Wang
- Engineering Research Center of Advanced Wooden Materials and Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin 150040, PR China
| | - Yahui Zhang
- Chinese Academy of Forestry, Research Institute of Wood Industry, Xiang Shan Road, Haidian, 100091 Beijing China.
| | - Siyu Zhang
- Engineering Research Center of Advanced Wooden Materials and Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin 150040, PR China
| | - Min Ge
- Engineering Research Center of Advanced Wooden Materials and Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin 150040, PR China
| | - Huayang Zhang
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia.
| | - Shaobin Wang
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Zhijun Chen
- Engineering Research Center of Advanced Wooden Materials and Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin 150040, PR China
| | - Shujun Li
- Engineering Research Center of Advanced Wooden Materials and Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin 150040, PR China
| | - Chenhui Yang
- Engineering Research Center of Advanced Wooden Materials and Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin 150040, PR China.
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Optimization of Taxol Extraction Process Using Response Surface Methodology and Investigation of Temporal and Spatial Distribution of Taxol in Taxus mairei. Molecules 2021; 26:molecules26185485. [PMID: 34576955 PMCID: PMC8467179 DOI: 10.3390/molecules26185485] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/03/2021] [Accepted: 09/07/2021] [Indexed: 11/16/2022] Open
Abstract
Taxus mairei is an important source for industrial extraction of taxol in China. However, the standard and steps of extraction are currently not uniform, which seriously affects the taxol yield. In the present study, the influence of four factors (methanol concentration, solid-liquid ratio, ultrasonic extraction temperature, and ultrasonic extraction time) on the taxol yield was successively explored in T. mairei. A response surface methodology (RSM) was used to optimize the extraction process based on the single-factor experiments above. The optimal conditions were as follows: methanol concentration was 90%, solid-liquid ratio was 1:15 (g/mL), ultrasonic extraction temperature was 40 °C and ultrasonic extraction time was 60 min. Moreover, the twigs and needles from T. mairei with different tree ages were treated by the optimum extraction process, which further revealed temporal and spatial distribution of taxol in the reproducible tissues. Interestingly, the taxol content was relatively higher in needles of T. ‘Jinxishan’ (a cultivar from T. mairei with yellow aril, FY), but was less in FY twigs. The accumulation of taxol in twigs and leaves of females (with red aril, FR) was significantly higher than that of males (M); however, the content showed a decreasing trend with the increasing tree ages. Therefore, it is suitable to increase the proportion of female trees especially the FY leaves as raw materials for the industrial production of taxol from T. mairei, and the tree ages should be better controlled at 3–7 years.
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