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Nagaraj A, Rekha PD. Development of a bioink using exopolysaccharide from Rhizobium sp. PRIM17. Int J Biol Macromol 2023; 234:123608. [PMID: 36773865 DOI: 10.1016/j.ijbiomac.2023.123608] [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: 09/02/2022] [Revised: 01/16/2023] [Accepted: 02/05/2023] [Indexed: 02/11/2023]
Abstract
Biopolymers play a significant role in tissue engineering, including in the formulation of bioinks that require careful selection of the biopolymers having properties ideal for printability and supporting biological entities such as cells. Alginate is one of the most widely explored natural biopolymers for tissue engineering applications due to its biocompatibility, cross-linking ability, hydrophilic nature, and easy incorporation with other polymers. Here, a succinoglycan-like exopolysaccharide (EPS-R17) produced by a bacterial strain Rhizobium sp. PRIM17 was incorporated with alginate for the development of a bioink. The physicochemical characterization of EPS-R17 was performed before formulating the bioink with alginate. The bioink formulation was prepared by mixing different concentrations of EPS with an alginate solution at room temperature under sterile atmosphere. The prepared bioink was characterized for rheological properties, biocompatibility, and a bioplotting experiment was also conducted to mimick the extrusion bioprinting. The EPS-R17 was composed of glucose, galactose, and rhamnose with a molecular weight of 69.98 kDa. It was thermally stable up to 260 °C and showed characteristic FT-IR peaks (1723.3 cm-1) for succinyl groups. The EPS-R17 showed biocompatibility with keratinocytes (HaCaT), and fibroblasts (HDF) in vitro. The rheological properties of EPS-R17-alginate bioink at different combinations showed shear thinning behavior at 25 and 37 °C. Amplitude sweep measurements showed the gel-like nature of the polymer combinations in the solution system superior to alginate or EPS-R17 alone. The combination of 1 % EPS-R17 and 1.5 % alginate showed good compressive strength and swelling behavior. Extrusion bioprinting mimicked using a bioplotting experiment showed the sustained cell viability in the polymer matrix of EPS-R17-alginate bioink. The results indicate that the EPS-R17 can be used in combination with alginate for bioinks for bioprinting applications for providing physical properties and favorable bioactivities.
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Affiliation(s)
- Athmika Nagaraj
- Yenepoya Research Centre, Yenepoya (Deemed to be University), University Road, Deralakatte, Mangalore 575018, India
| | - Punchappady Devasya Rekha
- Yenepoya Research Centre, Yenepoya (Deemed to be University), University Road, Deralakatte, Mangalore 575018, India.
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Jafari M, Abolmaali SS, Borandeh S, Najafi H, Zareshahrabadi Z, Heidari R, Azarpira N, Zomorodian K, Tamaddon AM. Amphiphilic hyperbranched polyglycerol nanoarchitectures for Amphotericin B delivery in Candida infections. BIOMATERIALS ADVANCES 2022; 139:212996. [PMID: 35891600 DOI: 10.1016/j.bioadv.2022.212996] [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: 02/05/2022] [Revised: 05/23/2022] [Accepted: 06/17/2022] [Indexed: 06/15/2023]
Abstract
Although Amphotericin B (AMB) is considered the most effective anti-mycotic agent for treating Candida infections, its clinical use is limited due to its high toxicity. To address this issue, we developed cholesterol-based dendritic micelles of hyperbranched polyglycerol (HPG), including cholesterol-cored HPG (Chol-HPG) and cholesterol end-capped HPG (HPG@Chol), for AMB delivery. The findings suggested that the presence of cholesterol moieties could control AMB loading and release properties. Dendritic micelles inhibited AMB hemolysis and cytotoxicity in HEK 293 and RAW 264.7 cell lines while increasing antifungal activity against C. albicans biofilm formation. Furthermore, significantly lower levels of renal and liver toxicity biomarkers compared to Fungizone® ensured AMB-incorporated dendritic micelle biosafety, which was confirmed by histopathological evaluations. Overall, the Chol-HPG and HPG@Chol dendritic micelles may be a viable alternative to commercially available AMB formulations as well as an effective delivery system for other poorly soluble antifungal agents.
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Affiliation(s)
- Mahboobeh Jafari
- Pharmaceutical Nanotechnology Department, Shiraz University of Medical Sciences, Shiraz, PO Box 71345-1583, Iran
| | - Samira Sadat Abolmaali
- Pharmaceutical Nanotechnology Department, Shiraz University of Medical Sciences, Shiraz, PO Box 71345-1583, Iran; Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, PO Box 71345-1583, Iran
| | - Sedigheh Borandeh
- Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, PO Box 71345-1583, Iran
| | - Haniyeh Najafi
- Pharmaceutical Nanotechnology Department, Shiraz University of Medical Sciences, Shiraz, PO Box 71345-1583, Iran
| | - Zahra Zareshahrabadi
- Department of Parasitology & Mycology, School of Medicines, Shiraz University of Medical Sciences, Shiraz, PO Box 713484-5794, Iran
| | - Reza Heidari
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, PO Box 71345-1583, Iran
| | - Negar Azarpira
- Transplant Research Center, Shiraz University of Medical Sciences, Mohammad Rasoul-allah Research Tower, Shiraz, PO Box 7193711351, Iran
| | - Kamiar Zomorodian
- Department of Parasitology & Mycology, School of Medicines, Shiraz University of Medical Sciences, Shiraz, PO Box 713484-5794, Iran; Basic Sciences in Infectious Diseases Research Center, School of Medicine, Shiraz University of Medical Sciences, Shiraz, PO Box 713484-5794, Iran.
| | - Ali Mohammad Tamaddon
- Pharmaceutical Nanotechnology Department, Shiraz University of Medical Sciences, Shiraz, PO Box 71345-1583, Iran; Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, PO Box 71345-1583, Iran.
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Stimulating mechanism of corn oil on biomass and polysaccharide production of Pleurotus tuber-regium mycelium. Int J Biol Macromol 2021; 201:93-103. [PMID: 34973980 DOI: 10.1016/j.ijbiomac.2021.12.149] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 12/05/2021] [Accepted: 12/23/2021] [Indexed: 01/03/2023]
Abstract
Hyperbranched polysaccharides (HBPSs) are the main components in cell wall and exopolysaccharide (EPS) of Pleurotus tuber-regium. To enhance the yield of these macromolecules, corn oil at 4% addition exhibited the best effect for production of mycelial biomass at 20.49 g/L and EPS at 0.59 g/L, which was 2.56 folds and 1.90 folds of the control, respectively. The treated hyphae were much thicker with smooth surface, while its cell wall content (43.81 ± 0.02%) was 1.96 times of the control (22.34 ± 0.01%). Moreover, a large number of lipid droplets could be visualized under the view of confocal laser scanning microscopy (CLSM). RNA-seq analysis revealed that corn oil could enter the cells and result in the up-regulation of genes on cell morphology and membrane permeability, as well as the down-regulation on expression level of polysaccharide hydrolase and genes involved in the MAPK pathway, all of which probably contribute to the increase of polysaccharides production.
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Liu X, Xiao M, Xue K, Li M, Liu D, Wang Y, Yang X, Hu Y, Kwok RTK, Qin A, Zhu C, Lam JWY, Tang BZ. Heteroaromatic Hyperbranched Polyelectrolytes: Multicomponent Polyannulation and Photodynamic Biopatterning. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xiaolin Liu
- Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Institute for Advanced Study Division of Biomedical Engineering Division of Life Science, and State Key Laboratory of Molecular Neuroscience The Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
- HKUST-Shenzhen Research Institute No. 9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - Minghui Xiao
- Key Laboratory of Functional Polymer Materials of Ministry of Education State Key Laboratory of Medicinal Chemical Biology Institute of Polymer Chemistry College of Chemistry Nankai University Tianjin 300071 China
| | - Ke Xue
- Key Laboratory of Functional Polymer Materials of Ministry of Education State Key Laboratory of Medicinal Chemical Biology Institute of Polymer Chemistry College of Chemistry Nankai University Tianjin 300071 China
| | - Mingzhao Li
- Center for Aggregation-Induced Emission SCUT-HKUST Joint Research Institute State Key Laboratory of Luminescent Materials and Devices South China University of Technology Guangzhou 510640 China
| | - Dongming Liu
- Center for Aggregation-Induced Emission SCUT-HKUST Joint Research Institute State Key Laboratory of Luminescent Materials and Devices South China University of Technology Guangzhou 510640 China
| | - Yong Wang
- Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Institute for Advanced Study Division of Biomedical Engineering Division of Life Science, and State Key Laboratory of Molecular Neuroscience The Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
| | - Xinzhe Yang
- Center for Aggregation-Induced Emission SCUT-HKUST Joint Research Institute State Key Laboratory of Luminescent Materials and Devices South China University of Technology Guangzhou 510640 China
| | - Yubing Hu
- Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Institute for Advanced Study Division of Biomedical Engineering Division of Life Science, and State Key Laboratory of Molecular Neuroscience The Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
| | - Ryan T. K. Kwok
- Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Institute for Advanced Study Division of Biomedical Engineering Division of Life Science, and State Key Laboratory of Molecular Neuroscience The Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
| | - Anjun Qin
- Center for Aggregation-Induced Emission SCUT-HKUST Joint Research Institute State Key Laboratory of Luminescent Materials and Devices South China University of Technology Guangzhou 510640 China
| | - Chunlei Zhu
- Key Laboratory of Functional Polymer Materials of Ministry of Education State Key Laboratory of Medicinal Chemical Biology Institute of Polymer Chemistry College of Chemistry Nankai University Tianjin 300071 China
| | - Jacky W. Y. Lam
- Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Institute for Advanced Study Division of Biomedical Engineering Division of Life Science, and State Key Laboratory of Molecular Neuroscience The Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
- HKUST-Shenzhen Research Institute No. 9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - Ben Zhong Tang
- Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Institute for Advanced Study Division of Biomedical Engineering Division of Life Science, and State Key Laboratory of Molecular Neuroscience The Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
- HKUST-Shenzhen Research Institute No. 9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
- Center for Aggregation-Induced Emission SCUT-HKUST Joint Research Institute State Key Laboratory of Luminescent Materials and Devices South China University of Technology Guangzhou 510640 China
- AIE Institute, Guangzhou Development District, Huangpu Guangzhou 510530 China
- Guangdong-Hong Kong-Macau Joint Laboratory of Optoelectronic and Magnetic Functional Materials China
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Liu X, Xiao M, Xue K, Li M, Liu D, Wang Y, Yang X, Hu Y, Kwok RTK, Qin A, Zhu C, Lam JWY, Tang BZ. Heteroaromatic Hyperbranched Polyelectrolytes: Multicomponent Polyannulation and Photodynamic Biopatterning. Angew Chem Int Ed Engl 2021; 60:19222-19231. [DOI: 10.1002/anie.202104709] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/10/2021] [Indexed: 12/22/2022]
Affiliation(s)
- Xiaolin Liu
- Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Institute for Advanced Study Division of Biomedical Engineering Division of Life Science, and State Key Laboratory of Molecular Neuroscience The Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
- HKUST-Shenzhen Research Institute No. 9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - Minghui Xiao
- Key Laboratory of Functional Polymer Materials of Ministry of Education State Key Laboratory of Medicinal Chemical Biology Institute of Polymer Chemistry College of Chemistry Nankai University Tianjin 300071 China
| | - Ke Xue
- Key Laboratory of Functional Polymer Materials of Ministry of Education State Key Laboratory of Medicinal Chemical Biology Institute of Polymer Chemistry College of Chemistry Nankai University Tianjin 300071 China
| | - Mingzhao Li
- Center for Aggregation-Induced Emission SCUT-HKUST Joint Research Institute State Key Laboratory of Luminescent Materials and Devices South China University of Technology Guangzhou 510640 China
| | - Dongming Liu
- Center for Aggregation-Induced Emission SCUT-HKUST Joint Research Institute State Key Laboratory of Luminescent Materials and Devices South China University of Technology Guangzhou 510640 China
| | - Yong Wang
- Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Institute for Advanced Study Division of Biomedical Engineering Division of Life Science, and State Key Laboratory of Molecular Neuroscience The Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
| | - Xinzhe Yang
- Center for Aggregation-Induced Emission SCUT-HKUST Joint Research Institute State Key Laboratory of Luminescent Materials and Devices South China University of Technology Guangzhou 510640 China
| | - Yubing Hu
- Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Institute for Advanced Study Division of Biomedical Engineering Division of Life Science, and State Key Laboratory of Molecular Neuroscience The Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
| | - Ryan T. K. Kwok
- Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Institute for Advanced Study Division of Biomedical Engineering Division of Life Science, and State Key Laboratory of Molecular Neuroscience The Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
| | - Anjun Qin
- Center for Aggregation-Induced Emission SCUT-HKUST Joint Research Institute State Key Laboratory of Luminescent Materials and Devices South China University of Technology Guangzhou 510640 China
| | - Chunlei Zhu
- Key Laboratory of Functional Polymer Materials of Ministry of Education State Key Laboratory of Medicinal Chemical Biology Institute of Polymer Chemistry College of Chemistry Nankai University Tianjin 300071 China
| | - Jacky W. Y. Lam
- Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Institute for Advanced Study Division of Biomedical Engineering Division of Life Science, and State Key Laboratory of Molecular Neuroscience The Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
- HKUST-Shenzhen Research Institute No. 9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - Ben Zhong Tang
- Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Institute for Advanced Study Division of Biomedical Engineering Division of Life Science, and State Key Laboratory of Molecular Neuroscience The Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
- HKUST-Shenzhen Research Institute No. 9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
- Center for Aggregation-Induced Emission SCUT-HKUST Joint Research Institute State Key Laboratory of Luminescent Materials and Devices South China University of Technology Guangzhou 510640 China
- AIE Institute, Guangzhou Development District, Huangpu Guangzhou 510530 China
- Guangdong-Hong Kong-Macau Joint Laboratory of Optoelectronic and Magnetic Functional Materials China
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Hou XX, Liu JY, Li ZY, Chang MC, Guo M, Feng CP, Shi JY. Fruiting body polysaccharides of Hericium erinaceus induce apoptosis in human colorectal cancer cells via ROS generation mediating caspase-9-dependent signaling pathways. Food Funct 2021; 11:6128-6138. [PMID: 32573644 DOI: 10.1039/d0fo00916d] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The fruiting bodies of Hericium erinaceus (Bull.) Pers. are commonly used in China in the treatment of digestive system diseases. In this work, the polysaccharides from the fruiting bodies of Hericium erinaceus (HEFPs) were extracted, and their effects on human colorectal cancer cells (HCT-116 and DLD1) were investigated in vitro. Our results showed that HEFPs were mainly composed of arabinose, galactose, glucose, and mannose at a molar ratio of 8.99 : 11.15 : 1.2 : 1.97. They significantly inhibited the growth of these cells by inducing apoptosis by the modulation of Bax and Bcl-2 expression, which in turn induced the loss of mitochondrial membrane potential, leading to the activation of cleaved-caspase-9 and cleaved-caspase-3. These results suggested that HEFPs induced apoptosis via the caspase-9-depedent intrinsic mitochondrial pathway. Furthermore, HEFPs increased the level of reactive oxygen species (ROS) in HCT-116 and DLD1 cells. The addition of the antioxidant N-acetyl-l-cysteine reduced the ability of HEFPs to trigger the intrinsic mitochondrial pathway, indicating the role of ROS generation in the upstream pathway of HEFP-induced apoptosis. Therefore, the results described in this study could be of interest for further studies in finding functional foods or alternative therapeutic agents against colorectal cancer.
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Affiliation(s)
- Xiao-Xiao Hou
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, Shanxi, China.
| | - Jing-Yu Liu
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, Shanxi, China. and Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Institute of Biotechnology, Shanxi University, Taiyuan 030006, Shanxi, China and Collaborative Innovation Center of Quality and Efficiency of Loess Plateau Edible Fungi, Taigu 030801, Shanxi, China
| | - Zhuo-Yu Li
- Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Institute of Biotechnology, Shanxi University, Taiyuan 030006, Shanxi, China and Collaborative Innovation Center of Quality and Efficiency of Loess Plateau Edible Fungi, Taigu 030801, Shanxi, China
| | - Ming-Chang Chang
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, Shanxi, China. and Collaborative Innovation Center of Quality and Efficiency of Loess Plateau Edible Fungi, Taigu 030801, Shanxi, China
| | - Min Guo
- Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Institute of Biotechnology, Shanxi University, Taiyuan 030006, Shanxi, China
| | - Cui-Ping Feng
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, Shanxi, China. and Collaborative Innovation Center of Quality and Efficiency of Loess Plateau Edible Fungi, Taigu 030801, Shanxi, China
| | - Jiang-Ying Shi
- Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Institute of Biotechnology, Shanxi University, Taiyuan 030006, Shanxi, China
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Habibu S, Sarih NM, Sairi NA, Zulkifli M. Rheological and thermal degradation properties of hyperbranched polyisoprene prepared by anionic polymerization. ROYAL SOCIETY OPEN SCIENCE 2019; 6:190869. [PMID: 31827835 PMCID: PMC6894563 DOI: 10.1098/rsos.190869] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Accepted: 10/04/2019] [Indexed: 06/10/2023]
Abstract
Hyperbranched polyisoprene was prepared by anionic copolymerization under high vacuum condition. Size exclusion chromatography was used to characterize the molecular weight and branching nature of these polymers. The characterization by differential scanning calorimetry and melt rheology indicated lower Tg and complex viscosity in the branched polymers as compared with the linear polymer. Degradation kinetics of these polymers was explored using thermogravimetric analysis via non-isothermal techniques. The polymers were heated under nitrogen from ambient temperature to 600°C using heating rates from 2 to 15°C min-1. Three kinetics methods namely Friedman, Flynn-Wall-Ozawa and Kissinger-Akahira-Sunose were used to evaluate the dependence of activation energy (Ea ) on conversion (α). The hyperbranched polyisoprene decomposed via multistep mechanism as manifested by the nonlinear relationship between α and Ea while the linear polymer exhibited a decline in Ea at higher conversions. The average Ea values range from 258 to 330 kJ mol-1 for the linear, and from 260 to 320 kJ mol-1 for the branched polymers. The thermal degradation of the polymers studied involved one-dimensional diffusion mechanism as determined by Coats-Redfern method. This study may help in understanding the effect of branching on the rheological and decomposition kinetics of polyisoprene.
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Affiliation(s)
- Shehu Habibu
- Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
- Department of Chemistry, Faculty of Science, Federal University Dutse, PMB 7651, Jigawa, Nigeria
| | | | - Nor Asrina Sairi
- Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Muzafar Zulkifli
- Section of Polymer Engineering Technology, Universiti Kuala Lumpur, Branch Campus Malaysian Institute of Chemical and Bioengineering Technology (UniKL MICET), Lot 1988, Taboh Naning, 78000 Alor Gajah, Malacca, Malaysia
- Green Chemistry and Sustainable Engineering Technology Cluster, Universiti Kuala Lumpur, Branch Campus Malaysian Institute of Chemical and Bioengineering Technology (UniKL MICET), Lot 1988, Taboh Naning, 78000 Alor Gajah, Malacca, Malaysia
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Structure, bioactivity and applications of natural hyperbranched polysaccharides. Carbohydr Polym 2019; 223:115076. [PMID: 31427017 DOI: 10.1016/j.carbpol.2019.115076] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 07/07/2019] [Accepted: 07/09/2019] [Indexed: 11/23/2022]
Abstract
In recent years, hyperbranched polymers, especially the natural hyperbranched polysaccharides (HBPSs), are receiving much attention due to their diverse biological activities and applications. With high degree of branching (DB), HBPSs mainly exist in the form of either a comb-brush shape, dendrimer-like particulate, or globular particle. HBPSs also possess some unique properties, such as high density, large spatial cavities, and numerous terminal functional groups, which distinguish them from other polymers. As a natural biopolymer, HBPS has excellent bioavailability, biocompatibility, and biodegradability, which have versatile applications in the fields of food, medicine, cosmetic, and nanomaterials. In this review, the source and structure of HBPSs from plant, animal, microbial and fungal origins as well as their biological functions and applications are covered, with the aim of further advancing the research of their structure and bioactivity.
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Tao TL, Cui FJ, Chen XX, Sun WJ, Huang DM, Zhang J, Yang Y, Wu D, Liu WM. Improved mycelia and polysaccharide production of Grifola frondosa by controlling morphology with microparticle Talc. Microb Cell Fact 2018; 17:1. [PMID: 29306327 PMCID: PMC5756420 DOI: 10.1186/s12934-017-0850-2] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2017] [Accepted: 12/15/2017] [Indexed: 11/17/2022] Open
Abstract
Background Mushroom showed pellet, clump and/or filamentous mycelial morphologies during submerged fermentation. Addition of microparticles including Talc (magnesium silicate), aluminum oxide and titanium oxide could control mycelial morphologies to improve mycelia growth and secondary metabolites production. Here, effect of microparticle Talc (45 μm) addition on the mycelial morphology, fermentation performance, monosaccharide compositions of polysaccharides and enzymes activities associated with polysaccharide synthesis in G. frondosa was well investigated to find a clue of the relationship between polysaccharide biosynthesis and morphological changes. Results Addition of Talc decreased the diameter of the pellets and increased the percentage of S-fraction mycelia. Talc gave the maximum mycelial biomass of 19.25 g/L and exo-polysaccharide of 3.12 g/L at 6.0 g/L of Talc, and mycelial polysaccharide of 0.24 g/g at 3.0 g/L of Talc. Talc altered the monosaccharide compositions/percentages in G. frondosa mycelial polysaccharide with highest mannose percentage of 62.76 % and lowest glucose percentage of 15.22 % followed with the corresponding changes of polysaccharide-synthesis associated enzymes including lowest UDP-glucose pyrophosphorylase (UGP) activity of 91.18 mU/mg and highest UDP-glucose dehydrogenase (UGDG) and GDP-mannose pyrophosphorylase (GMPPB) activities of 81.45 mU/mg and 93.15 mU/mg. Conclusion Our findings revealed that the presence of Talc significantly changed the polysaccharide production and sugar compositions/percentages in mycelial and exo-polysaccharides by affecting mycelial morphology and polysaccharide-biosynthesis related enzymes activities of G. frondosa.
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Affiliation(s)
- Ting-Lei Tao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, People's Republic of China
| | - Feng-Jie Cui
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, People's Republic of China. .,Jiangxi Provincial Engineering and Technology Center for Food Additives Bio-production, Dexing, 334221, People's Republic of China.
| | - Xiao-Xiao Chen
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, People's Republic of China
| | - Wen-Jing Sun
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, People's Republic of China.,Jiangxi Provincial Engineering and Technology Center for Food Additives Bio-production, Dexing, 334221, People's Republic of China
| | - Da-Ming Huang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, People's Republic of China
| | - Jinsong Zhang
- National Engineering Research Center of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, People's Republic of China
| | - Yan Yang
- National Engineering Research Center of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, People's Republic of China
| | - Di Wu
- National Engineering Research Center of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, People's Republic of China
| | - Wei-Min Liu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, People's Republic of China
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