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Guo W, Yun J, Wang B, Xu S, Ye C, Wang X, Qu Y, Zhao F, Yao L. Comparative study on physicochemical properties and hypoglycemic activities of intracellular and extracellular polysaccharides from submerged fermentation of Morchella esculenta. Int J Biol Macromol 2024; 278:134759. [PMID: 39151842 DOI: 10.1016/j.ijbiomac.2024.134759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 07/01/2024] [Accepted: 08/13/2024] [Indexed: 08/19/2024]
Abstract
The structural characteristic, physicochemical properties and structure-hypoglycemic activity relationship of intracellular (IPS) and extracellular (EPS) from submerged fermentation of Morchella esculenta were systematically compared and assessed. Both IPS and EPS were neutral, with a triple-helical conformation, and composed of galactose, glucose and mannose monosaccharides in different molar ratios. The molecular weight and particle size of IPS were higher than those of EPS. FTIR and SEM showed that the main functional group absorption peak intensity, glycosidic bond type and surface morphology of the two polysaccharides differed. Analysis of rheological and thermal properties revealed that the viscosity of IPS was higher than that of EPS, while thermal stability of EPS was greater than that of IPS. Hypoglycemic activity analysis in vitro showed that both IPS and EPS were non-competitive inhibitors of α-amylase and α-glucosidase. EPS showed strong digestive enzyme inhibitory activity due to its higher sulphate content and molar ratio of galactose, lower Mw and particle size. Meanwhile, with its higher Mw and apparent viscosity, IPS showed stronger glucose adsorption capacity and glucose diffusion retardation. These results indicate that IPS and EPS differed considerably in structure and physicochemical properties, which ultimately led to differences in hypoglycemic activity. These results not only suggested that IPS and EPS has the potential to be functional foods or hypoglycemic drugs, but also provided a new target for the prevention and treatment of diabetes with natural polysaccharides.
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Affiliation(s)
- Weihong Guo
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, Gansu, People's Republic of China
| | - Jianmin Yun
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, Gansu, People's Republic of China.
| | - Biao Wang
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, Gansu, People's Republic of China
| | - Siya Xu
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, Gansu, People's Republic of China
| | - Chenguang Ye
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, Gansu, People's Republic of China
| | - Xuerui Wang
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, Gansu, People's Republic of China
| | - Yuling Qu
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, Gansu, People's Republic of China
| | - Fengyun Zhao
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, Gansu, People's Republic of China
| | - Liang Yao
- Gannong Moli (Qingyang) Agricultural Development Co., Ltd, Qingyang 745000, Gansu, People's Republic of China
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Manna S, Karmakar S, Sen O, Sinha P, Jana S, Jana S. Recent updates on guar gum derivatives in colon specific drug delivery. Carbohydr Polym 2024; 334:122009. [PMID: 38553200 DOI: 10.1016/j.carbpol.2024.122009] [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: 12/02/2023] [Revised: 02/26/2024] [Accepted: 02/27/2024] [Indexed: 04/02/2024]
Abstract
Colon specific delivery of therapeutics have gained much attention of pharmaceutical researchers in the recent past. Colonic specific targeting of drugs is used not only for facilitating absorption of protein or peptide drugs, but also localization of therapeutic agents in colon to treat several colonic disorders. Among various biopolymers, guar gum (GG) exhibits pH dependent swelling, which allows colon specific release of drug. GG also shows microbial degradation in the colonic environment which makes it a suitable excipient for developing colon specific drug delivery systems. The uncontrolled swelling and hydration of GG can be controlled by structural modification or by grafting with another polymeric moiety. Several graft copolymerized guar gum derivatives are investigated for colon targeting of drugs. The efficacy of various guar gum derivatives are evaluated for colon specific delivery of drugs. The reviewed literature evidenced the potentiality of guar gum in localizing drugs in the colonic environment. This review focuses on the synthesis of several guar gum derivatives and their application in developing various colon specific drug delivery systems including matrix tablets, coated formulations, nano or microparticulate delivery systems and hydrogels.
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Affiliation(s)
- Sreejan Manna
- Department of Pharmaceutical Technology, Brainware University, Barasat, Kolkata, West Bengal 700125, India
| | - Sandip Karmakar
- Department of Pharmacy, Sanaka Educational Trust's Group of Institutions, Durgapur, West Bengal 713212, India
| | - Olivia Sen
- Department of Pharmaceutical Technology, Brainware University, Barasat, Kolkata, West Bengal 700125, India
| | - Puspita Sinha
- Department of Chemistry, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh 484887, India
| | - Subrata Jana
- Department of Chemistry, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh 484887, India
| | - Sougata Jana
- Department of Health and Family Welfare, Directorate of Health Services, Kolkata-700091, West Bengal, India.
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Zhu Y, Xu W, Feng C, Zhu L, Ji L, Wang K, Jiang J. Study on structure and properties of galactomannan and enzyme changes during fenugreek seeds germination. Carbohydr Polym 2024; 327:121653. [PMID: 38171675 DOI: 10.1016/j.carbpol.2023.121653] [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: 09/21/2023] [Revised: 11/13/2023] [Accepted: 11/29/2023] [Indexed: 01/05/2024]
Abstract
Fenugreek (Trigonella foenum-graecum L) galactomannan play an important role in the food and pharmaceutical sectors due to its attractive physicochemical properties. In this study, the changes of structure, properties and biological activity of fenugreek galactomannan (FG) during germination are analyzed by the activity and mechanism of endogenous enzymes (α-D-galactosidase and β-D-mannanase). The enzymes generally increased during germination and synergistically altered the structure of GM by cutting down the main chains and removing partial side residues. The mannose to galactose ratio (M/G) increased from 1.11 to 1.59, which is accompanied by a drastic decrease in molecular weight from 3.606 × 106 to 0.832 × 106 g/mol, and the drop of viscosity from 0.27 to 0.06 Pa·sn. The degraded macromolecules are attributed to the increase in solubility (from 64.55 % to 88.62 %). In terms of antioxidation and antidiabetic ability, germinated fenugreek galactomannan has the ability to scavenge 67.17 % ABTS free radicals and inhibit 86.89 % α-glucosidase. This galactomannan with low molecular weight and excellent biological activity precisely satisfies the current demands of pharmaceutical reagents and food industry. Seeds germination holds promise as a means of industrial scale production of low molecular weight galactomannans.
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Affiliation(s)
- Yana Zhu
- Engineering Research Center of Forestry Biomass Materials and Bioenergy (Ministry of Education), State Key Laboratory of Efficient Production of Forest Resources, Beijing Forestry University, Beijing 100083, China
| | - Wei Xu
- School of Materials Science and Engineering, Linyi University, Linyi 276005, China
| | - Chi Feng
- Engineering Research Center of Forestry Biomass Materials and Bioenergy (Ministry of Education), State Key Laboratory of Efficient Production of Forest Resources, Beijing Forestry University, Beijing 100083, China
| | - Liwei Zhu
- Engineering Research Center of Forestry Biomass Materials and Bioenergy (Ministry of Education), State Key Laboratory of Efficient Production of Forest Resources, Beijing Forestry University, Beijing 100083, China
| | - Li Ji
- Engineering Research Center of Forestry Biomass Materials and Bioenergy (Ministry of Education), State Key Laboratory of Efficient Production of Forest Resources, Beijing Forestry University, Beijing 100083, China
| | - Kun Wang
- Engineering Research Center of Forestry Biomass Materials and Bioenergy (Ministry of Education), State Key Laboratory of Efficient Production of Forest Resources, Beijing Forestry University, Beijing 100083, China
| | - Jianxin Jiang
- Engineering Research Center of Forestry Biomass Materials and Bioenergy (Ministry of Education), State Key Laboratory of Efficient Production of Forest Resources, Beijing Forestry University, Beijing 100083, China.
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Chen C, Li K, Li T, Li J, Liu Q, Yin H. Identification and Characterization of a Novel Mannanase from Klebsiella grimontii. Bioengineering (Basel) 2023; 10:1230. [PMID: 37892960 PMCID: PMC10604067 DOI: 10.3390/bioengineering10101230] [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: 09/19/2023] [Revised: 10/07/2023] [Accepted: 10/17/2023] [Indexed: 10/29/2023] Open
Abstract
Konjac glucomannan (KGM) is a natural polysaccharide derived from konjac, which has been widely used in various fields due to its numerous beneficial properties. However, the high viscosity and water absorption of KGM limit its application. Compared with KGM, Konjac glucomannan oligosaccharides (KGMOS) have higher water solubility and stronger application value. In this paper, a novel mannanase KgManA was cloned from Klebsiella grimontii to develop a new KGMOS-producing enzyme. Bioinformatic analysis shows that the structural similarity between KgManA and other enzymes was less than 18.33%. Phylogenetic analysis shows that KgManA shares different branches with the traditional mannanases containing the CMB35 domain, indicating that it is a novel mannanase. Then, the enzymatic properties were determined and substrate specificity was characterized. Surprisingly, KgManA is stable in a very wide pH range of 3.0 to 10.0; it has a special substrate specificity and seems to be active only for mannans without galactose in the side chain. Additionally, the three-dimensional structure of the enzyme was simulated and molecular docking of the mannotetraose substrate was performed. As far as we know, this is the first report to characterize the enzymatic properties and to simulate the structure of mannanase from K. grimontii. This work will contribute to the development and characterization of novel K. grimontii-derived mannanases. The above results indicate that KgManA is a promising tool for the production of KGMOS.
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Affiliation(s)
- Changzheng Chen
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Dalian Technology Innovation Center for Green Agriculture, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100190, China
| | - Kuikui Li
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Dalian Technology Innovation Center for Green Agriculture, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Tang Li
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Dalian Technology Innovation Center for Green Agriculture, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Junyan Li
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Dalian Technology Innovation Center for Green Agriculture, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Qishun Liu
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Dalian Technology Innovation Center for Green Agriculture, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- Key Laboratory of Se-enriched Products Development and Quality Control, Ministry of Agriculture and Rural Affairs, National-Local Joint Engineering Laboratory of Se-enriched Food Development, Ankang 725000, China
| | - Heng Yin
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Dalian Technology Innovation Center for Green Agriculture, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100190, China
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Sosnik A, Zlotver I, Peled E. Galactomannan- graft-poly(methyl methacrylate) nanoparticles induce an anti-inflammatory phenotype in human macrophages. J Mater Chem B 2023; 11:8471-8483. [PMID: 37587844 DOI: 10.1039/d3tb01397a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/18/2023]
Abstract
Macrophages are immune cells that can be activated into either pro-inflammatory M1 or anti-inflammatory M2 phenotypes. Attempts to modulate macrophage phenotype using drugs have been limited by targeting issues and systemic toxicity. This study investigates the effect of drug-free self-assembled hydrolyzed galactomannan-poly(methyl methacrylate) (hGM-g-PMMA) nanoparticles on the activation of the human monocyte-derived macrophage THP-1 cell line. Nanoparticles are cell compatible and are taken up by macrophages. RNA-sequencing analysis of cells exposed to NPs reveal the upregulation of seven metallothionein genes. Additionally, the secretion of pro-inflammatory and anti-inflammatory cytokines upon exposure of unpolarized macrophages and M1-like cells obtained by activation with lipopolysaccharide + interferon-γ to the NPs is reduced and increased, respectively. Finally, nanoparticle-treated macrophages promote fibroblast migration in vitro. Overall, results demonstrate that hGM-g-PMMA nanoparticles induce the release of anti-inflammatory cytokines by THP-1 macrophages, which could pave the way for their application in the therapy of different inflammatory conditions, especially by local delivery.
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Affiliation(s)
- Alejandro Sosnik
- Laboratory of Pharmaceutical Nanomaterials Science, Department of Materials Science and Engineering, Technion-Israel Institute of Technology, De-Jur Building, Office 607, Technion City, 3200003 Haifa, Israel.
| | - Ivan Zlotver
- Laboratory of Pharmaceutical Nanomaterials Science, Department of Materials Science and Engineering, Technion-Israel Institute of Technology, De-Jur Building, Office 607, Technion City, 3200003 Haifa, Israel.
| | - Ella Peled
- Laboratory of Pharmaceutical Nanomaterials Science, Department of Materials Science and Engineering, Technion-Israel Institute of Technology, De-Jur Building, Office 607, Technion City, 3200003 Haifa, Israel.
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Wang X, Li X, Zhang L, An L, Guo L, Huang L, Gao W. Recent progress in plant-derived polysaccharides with prebiotic potential for intestinal health by targeting gut microbiota: a review. Crit Rev Food Sci Nutr 2023:1-30. [PMID: 37651130 DOI: 10.1080/10408398.2023.2248631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Natural products of plant origin are of high interest and widely used, especially in the food industry, due to their low toxicity and wide range of bioactive properties. Compared to other plant components, the safety of polysaccharides has been generally recognized. As dietary fibers, plant-derived polysaccharides are mostly degraded in the intestine by polysaccharide-degrading enzymes secreted by gut microbiota, and have potential prebiotic activity in both non-disease and disease states, which should not be overlooked, especially in terms of their involvement in the treatment of intestinal diseases and the promotion of intestinal health. This review elucidates the regulatory effects of plant-derived polysaccharides on gut microbiota and summarizes the mechanisms involved in targeting gut microbiota for the treatment of intestinal diseases. Further, the structure-activity relationships between different structural types of plant-derived polysaccharides and the occurrence of their prebiotic activity are further explored. Finally, the practical applications of plant-derived polysaccharides in food production and food packaging are summarized and discussed, providing important references for expanding the application of plant-derived polysaccharides in the food industry or developing functional dietary supplements.
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Affiliation(s)
- Xiaozhen Wang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Xia Li
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Luyao Zhang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Lingzhuo An
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Lanping Guo
- National Resource Center for Chinese Materia Medica, Academy of Chinese Medical Sciences, Beijing, China
| | - Luqi Huang
- National Resource Center for Chinese Materia Medica, Academy of Chinese Medical Sciences, Beijing, China
| | - Wenyuan Gao
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
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