|
1
|
Wang M, Yan L, Guo X, Xing X, Liang F, Han C, Liu L. Design and Properties of Novel Hydrophobic Natural Tea Saponin and Its Organogels. Gels 2024; 10:225. [PMID: 38667644 PMCID: PMC11049091 DOI: 10.3390/gels10040225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 03/22/2024] [Accepted: 03/22/2024] [Indexed: 04/28/2024] Open
Abstract
It was first discovered that the excellent gelation ability of tea saponin can be obtained by introducing long-chain alkyl groups of dodecanoyl chloride into the glycosyl portion with direct esterification. The modified dodecanoyl chloride-tea saponin (DC-TS) was successfully synthesized and characterized with NMR, MS, and FT-IR. The tests showed that the long-chain alkyl group was successfully introduced. Combined with SEM and X-ray diffraction patterns, we found that the stable lamellar shape gels of DC-TS were formed in a variety of solvents. More interestingly, organogel was also obtained by adjusting good solvent and poor solvent as mixed solvent. It is worth noting that the driving force of organogels is the combination of hydrogen bonding and the hydrophobic interaction of the introduced alkyl chains with the rigid backbone of pentacyclic triterpenes. The modified tea saponin, a natural green surfactant, was discovered to have gelation properties, which has broadened tea saponin's scope of application and made it more promising.
Collapse
Affiliation(s)
- Maogong Wang
- CNPC Engineering Technology R&D Company Limited, Beijing 102206, China;
| | - Liuxin Yan
- MOE Engineering Research Center of Forestry Biomass Materials and Energy, Ministry of Education, Beijing Forestry University, Beijing 100083, China; (L.Y.); (X.G.); (X.X.); (F.L.); (L.L.)
| | - Xuying Guo
- MOE Engineering Research Center of Forestry Biomass Materials and Energy, Ministry of Education, Beijing Forestry University, Beijing 100083, China; (L.Y.); (X.G.); (X.X.); (F.L.); (L.L.)
| | - Xinwei Xing
- MOE Engineering Research Center of Forestry Biomass Materials and Energy, Ministry of Education, Beijing Forestry University, Beijing 100083, China; (L.Y.); (X.G.); (X.X.); (F.L.); (L.L.)
| | - Fengqian Liang
- MOE Engineering Research Center of Forestry Biomass Materials and Energy, Ministry of Education, Beijing Forestry University, Beijing 100083, China; (L.Y.); (X.G.); (X.X.); (F.L.); (L.L.)
| | - Chunrui Han
- MOE Engineering Research Center of Forestry Biomass Materials and Energy, Ministry of Education, Beijing Forestry University, Beijing 100083, China; (L.Y.); (X.G.); (X.X.); (F.L.); (L.L.)
| | - Liujun Liu
- MOE Engineering Research Center of Forestry Biomass Materials and Energy, Ministry of Education, Beijing Forestry University, Beijing 100083, China; (L.Y.); (X.G.); (X.X.); (F.L.); (L.L.)
| |
Collapse
|
|
2
|
Guan L, Zheng Z, Guo Z, Xiao S, Liu T, Chen L, Gao H, Wang Z. Steroidal saponins from rhizome of Paris polyphylla var. chinensis and their anti-inflammatory, cytotoxic effects. PHYTOCHEMISTRY 2024; 219:113994. [PMID: 38244959 DOI: 10.1016/j.phytochem.2024.113994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 01/12/2024] [Accepted: 01/13/2024] [Indexed: 01/22/2024]
Abstract
Five undescribed compounds, including two cholestane glycosides parispolyosides A and E, and three spirostanol glycosides parispolyosides B-D, were isolated from rhizome of Paris polyphylla var. chinensis (Franch.) Hara, together with twenty-one known steroidal saponins. Their chemical structures were elucidated on the basis of comprehensive analysis of 1D and 2D NMR, as well as HR-ESI-MS spectroscopic data. Two of these compounds demonstrated potent inhibitory effect on NO production stimulated by lipopolysaccharide in raw 264.7 cells with IC50 values of 61.35 μM and 37.23 μM. Four compounds exhibited moderate inhibitory activity against HepG2 cells with IC50 values ranging from 9.43 to 24.54 μM. Molecular docking analysis revealed that the potential mechanism of NO inhibition by the active compounds was associated with the interactions with iNOS protein.
Collapse
Affiliation(s)
- Liangjun Guan
- National Engineering Laboratory for Quality Control Technology of Chinese Materia Medica, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Zilu Zheng
- National Engineering Laboratory for Quality Control Technology of Chinese Materia Medica, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Zhongyuan Guo
- National Engineering Laboratory for Quality Control Technology of Chinese Materia Medica, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China; College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China
| | - Shunli Xiao
- National Engineering Laboratory for Quality Control Technology of Chinese Materia Medica, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Tuo Liu
- Artemisinin Research Center, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Liangmian Chen
- National Engineering Laboratory for Quality Control Technology of Chinese Materia Medica, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Huimin Gao
- National Engineering Laboratory for Quality Control Technology of Chinese Materia Medica, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Zhimin Wang
- National Engineering Laboratory for Quality Control Technology of Chinese Materia Medica, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China; College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China.
| |
Collapse
|