1
|
Yang J, Liu J, Kuang W, Lin Y, Zhong S, Kraithong S, Zhang X, Wong IN, Huang R. Structural characterization and ferroptosis-related immunomodulatory of a novel exopolysaccharide isolated from marine fungus Aspergillus medius. Int J Biol Macromol 2024; 265:130703. [PMID: 38458279 DOI: 10.1016/j.ijbiomac.2024.130703] [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: 12/04/2023] [Revised: 02/23/2024] [Accepted: 03/05/2024] [Indexed: 03/10/2024]
Abstract
Marine fungal exopolysaccharides play a crucial role in immunoregulation. In this investigation, a novel polysaccharide was extracted from the culture medium of the marine fungus Aspergillus medius SCAU-236. Compositional analysis revealed a structure composed of glucose units with (1,4)-α-D-Glcp, (1,3,4)-β-D-Glcp, and (1,4,6)-α-D-Glcp, along with side chains of 1-α-D-Glcp linked to carbon 6 of (1,4,6)-α-D-Glcp and carbon 3 of (1,3,4)-β-D-Glcp. Functional evaluations on RAW264.7 macrophage cells demonstrated Aspergillus medius polysaccharide (ASMP)'s effects on cell proliferation, nitric oxide levels, and the secretion of TNF-α, IL-6, and IL-1β cytokines. Additionally, metabolomics indicated ASMP's potential to modulate macrophage immune function by impacting key regulatory molecules, including COX-2, iNOS, Nrf2, SLC7A11, GPX4, and ACSL4. The Nrf2/SLC7A11/GPX4 axis and ACSL4 were suggested to be involved in ASMP-induced ferroptosis, leading to increased reactive oxygen species (ROS) levels and lipid peroxidation. These findings propose a unique mechanism by which ASMP exerts immunomodulatory effects through ferroptosis induction, contributing to the understanding of marine-derived compounds in immunomodulation research.
Collapse
Affiliation(s)
- Jiajia Yang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Jun Liu
- Laboratory of Pathogenic Biology, Guangdong Medical University, Zhanjiang 524023, China
| | - Weiyang Kuang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Yuqi Lin
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Saiyi Zhong
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
| | - Supaluck Kraithong
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Xiaoyong Zhang
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Io Nam Wong
- Faculty of Medicine, Macau University of Science and Technology, 999078, Macau.
| | - Riming Huang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China.
| |
Collapse
|
2
|
Sun H, Shu F, Guan Y, Kong F, Liu S, Liu Y, Li L. Study of anti-fatigue activity of polysaccharide from fruiting bodies of Armillaria gallica. Int J Biol Macromol 2023; 241:124611. [PMID: 37119895 DOI: 10.1016/j.ijbiomac.2023.124611] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 04/12/2023] [Accepted: 04/22/2023] [Indexed: 05/01/2023]
Abstract
Fatigue is a common physiological response that is closely related to energy metabolism. Polysaccharides, as excellent dietary supplements, have been proven to have a variety of pharmacological activities. In this study, A 23.007 kDa polysaccharide from Armillaria gallica (AGP) was purified and performed structural characterization, including analysis of homogeneity, molecular weight and monosaccharide composition. Methylation analysis is used to analyze the glycosidic bond composition of AGP. The mouse model of acute fatigue was used to evaluate the anti-fatigue effect of AGP. AGP-treatment improved exercise endurance in mice and reduced fatigue symptoms caused by acute exercise. AGP regulated the levels of adenosine triphosphate, lactic acid, blood urea nitrogen and lactate dehydrogenase, muscle glycogen and liver glycogen of acute fatigue mice. AGP affected the composition of intestinal microbiota, the changes of some intestinal microorganisms are correlated with fatigue and oxidative stress indicators. Meanwhile, AGP reduced oxidative stress levels, increased antioxidant enzyme activity and regulated the AMP-dependent protein kinase/nuclear factor erythroid 2-related factor 2 signaling pathway. AGP exerted an anti-fatigue effect through modulation of oxidative stress, which is related to intestinal microbiota.
Collapse
Affiliation(s)
- Huihui Sun
- Engineering Research Center of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China.
| | - Fang Shu
- Engineering Research Center of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China.
| | - Yue Guan
- Engineering Research Center of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China.
| | - Fange Kong
- Engineering Research Center of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China.
| | - Shuyan Liu
- Engineering Research Center of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China.
| | - Yang Liu
- Engineering Research Center of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China.
| | - Lanzhou Li
- Engineering Research Center of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China.
| |
Collapse
|
3
|
Rusinova-Videva S, Ognyanov M, Georgiev Y, Petrova A, Dimitrova P, Kambourova M. Chemical characterization and biological effect of exopolysaccharides synthesized by Antarctic yeasts Cystobasidium ongulense AL 101 and Leucosporidium yakuticum AL 102 on murine innate immune cells. World J Microbiol Biotechnol 2022; 39:39. [PMID: 36512173 DOI: 10.1007/s11274-022-03477-0] [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: 05/22/2022] [Accepted: 11/18/2022] [Indexed: 12/15/2022]
Abstract
The current study aimed to investigate exopolysaccharides (EPSs) produced by two Antarctic yeasts isolated from soil and penguin feathers samples collected on Livingston Island (Antarctica). The strains were identified as belonging to the species Leucosporidium yakuticum (LY) and Cystobasidium ongulense (CO) based on molecular genetic analysis. The EPS production was investigated using submerged cultivation. Different chemical, chromatographic, and spectral analyses were employed to characterize EPSs. LY accumulated 5.5 g/L biomass and 4.0 g/L EPS after 120 h of cultivation, while CO synthesized 2.1 g/L EPS at the end of cultivation, and the biomass amount reached 5.5 g/L. LY-EPS was characterized by a higher total carbohydrate content (80%) and a lower protein content (18%) by comparison with CO-EPS (62%, 30%). The LY-EPS mainly consisted of mannose (90 mol%), whereas CO-EPS had also glucose, galactose, and small amounts of uronic acids (8-5 mol%). Spectral analyses (FT-IR and 1D, 2D NMR) revealed that LY-EPS comprised a typical β-(1 → 4)-mannan. Branched (hetero)mannan, together with β/α-glucans constituted the majority of CO-EPS. Unlike LY-EPS, which had a high percentage of high molecular weight populations, CO-EPS displayed a large quantity of lower molecular weight fractions and a higher degree of heterogeneity. LY-EPS (100 ng/mL) elevated significantly interferon gamma (IFN-γ) production in splenic murine macrophages and natural killer (NK) cells. The results indicated that newly identified EPSs might affect IFN-γ signaling and in turn, might enhance anti-infectious responses. The data obtained also revealed the potential of EPSs and yeasts for practical application in biochemical engineering and biotechnology.
Collapse
Affiliation(s)
- Snezhana Rusinova-Videva
- Department of Biotechnology, The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 139 Ruski Blvd., 4000, Plovdiv, Bulgaria.
| | - Manol Ognyanov
- Laboratory of Biologically Active Substances, Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 139 Ruski Blvd., 4000, Plovdiv, Bulgaria
| | - Yordan Georgiev
- Laboratory of Biologically Active Substances, Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 139 Ruski Blvd., 4000, Plovdiv, Bulgaria
| | - Ani Petrova
- Laboratory of Biologically Active Substances, Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 139 Ruski Blvd., 4000, Plovdiv, Bulgaria
| | - Petya Dimitrova
- Department of Immunology, Laboratory of Experimental Immunotherapy, The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 26 Acad. Georgi Bonchev Str., 1113, Sofia, Bulgaria
| | - Margarita Kambourova
- Department of General Microbiology, The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 26 Acad. Georgi Bonchev Str., 1113, Sofia, Bulgaria
| |
Collapse
|
4
|
Zhong RF, Yang JJ, Geng JH, Chen J. Structural characteristics, anti-proliferative and immunomodulatory activities of a purified polysaccharide from Lactarius volemus Fr. Int J Biol Macromol 2021; 192:967-977. [PMID: 34655586 DOI: 10.1016/j.ijbiomac.2021.10.049] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 10/07/2021] [Accepted: 10/07/2021] [Indexed: 01/13/2023]
Abstract
Lactarius volemus Fr. is an edible mushroom widely consumed in China. Polysaccharide is an important nutritional component of L. volemus. This research aimed to isolate the polysaccharide from L. volemus and study its structure and bioactivities. A purified polysaccharide was identified and named as LVF-I whose primary structure was proposed considering the comprehensive results of monosaccharide composition, periodate oxidation-smith degradation, methylation analysis, FT-IR and 1D/2D NMR spectroscopy. Then the immunomodulation of LVF-I and its inhibition effect on H1299 and MCF-7 cells were investigated. Results showed that LVF-I (12,894 Da) contained fucose, mannose, glucose and galactose. It had a backbone consisting of →4)-α-D-Glcp-(1→, →6)-β-D-Manp-(1→, →6)-α-D-Galp-(1 → and →4)-β-D-Manp-(1→. And its side chains were branched at C2 of →4)-β-D-Manp-(1 → by →6)-α-D-Galp-(1→, α-D-Glcp-(1→, α-D-Galp-(1 → and α-L-Fucp-(1→. LVF-I (250-1000 μg/mL) could inhibit the proliferation of H1299 and MCF-7 cells, while enhance the proliferative response of splenocyte and the phagocytic ability of RAW264.7. Furthermore, LVF-I (250-1000 μg/mL) significantly induced the secretion of nitric oxide, interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) by up-regulating their mRNA expression in macrophages. These results suggested that LVF-I had the potential to be developed as antitumor or immunomodulatory agents by inhibiting the proliferation of tumor cells and stimulating macrophages-mediated immune responses.
Collapse
Affiliation(s)
- Rui-Fang Zhong
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Jing-Juan Yang
- School of Chinese Material medica, Yunnan University of Chinese medicine, Kunming 650500, China
| | - Jia-Huan Geng
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Jian Chen
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China.
| |
Collapse
|
5
|
Biologically active polysaccharide from edible mushrooms: A review. Int J Biol Macromol 2021; 172:408-417. [PMID: 33465360 DOI: 10.1016/j.ijbiomac.2021.01.081] [Citation(s) in RCA: 96] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 11/16/2020] [Accepted: 01/12/2021] [Indexed: 02/04/2023]
Abstract
Mushrooms are renewable natural gift for humankind, furnished with unique taste, flavor and medicinal properties. For the last few decades study of mushroom polysaccharides has become a matter of great interest to the researchers for their immunomodulating, antimicrobial, antioxidant, anticancer, and antitumor properties. Molecular mass, branching configuration, conformation of polysaccharides and chemical modification are the major factors influencing their biological activities. The mechanism of action of mushroom polysaccharides is to stimulate T-cells, B-cells, natural killer cells, and macrophage dependent immune responses via binding to receptors like the toll-like receptor-2, dectin-1. The present review offers summarized and significant information about the structural and biological properties of mushroom polysaccharides, and their potential for development of therapeutic materials.
Collapse
|
6
|
Patra S, Maity P, Chakraborty I, Sen IK, Ghosh D, Rout D, Bhanja SK. Structural studies of immunomodulatory (1 → 3)-, (1 → 4)-α glucan from an edible mushroom Polyporus grammocephalus. Int J Biol Macromol 2020; 168:649-655. [PMID: 33220371 DOI: 10.1016/j.ijbiomac.2020.11.121] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 11/13/2020] [Accepted: 11/17/2020] [Indexed: 10/22/2022]
Abstract
A water soluble polysaccharide (PGPS) with molecular weight ~ 1.4 × 105 Da was isolated by alkali treatment from an edible mushroom Polyporus grammocephalus and purified by gel chromatography using sepharose-6B column. Monosaccharide analysis revealed that PGPS was made up of glucose only. PGPS contained (1 → 3)-α-D-Glcp and (1 → 4)-α-D-Glcp moieties in a molar ratio of nearly 1:2. Through a series of chemical and spectroscopic (1D/2D NMR) investigations, the repeating unit of the glucan was established as: →3)-α-D-Glcp(1 → [4)-α-D-Glcp(1]2→ This α-glucan was observed to stimulate some prime components of immune system, namely, macrophages, splenocytes, and thymocytes.
Collapse
Affiliation(s)
- Sukesh Patra
- Department of Chemistry, Midnapore College (Autonomous), Midnapore, Paschim Medinipur, 721101, West Bengal, India
| | - Prasenjit Maity
- Department of Chemistry, Sabang Sajanikanta Mahavidyalaya, Lutunia, Paschim Medinipur, 721166, West Bengal, India
| | - Indranil Chakraborty
- Department of Chemistry, Kharagpur College, Kharagpur, Paschim Medinipur, 721305, West Bengal, India
| | - Ipsita Kumar Sen
- Department of Chemistry, Government General Degree College, Salboni, Paschim Medinipur, 721516, West Bengal, India
| | - Debosree Ghosh
- Department of Physiology, Government General Degree College, Kharagpur-II, Paschim Medinipur, 721149, West Bengal, India
| | - Dilip Rout
- Department of Chemistry, Jhargram Raj College, Jhargram, 721507, West Bengal, India
| | - Sunil Kumar Bhanja
- Department of Chemistry, Government General Degree College, Kharagpur-II, Paschim Medinipur, 721149, West Bengal, India.
| |
Collapse
|
7
|
Structural characterization of a heteroglycan from an edible mushroom Termitomyces heimii. Int J Biol Macromol 2020; 151:305-311. [PMID: 32084474 DOI: 10.1016/j.ijbiomac.2020.02.120] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Revised: 12/29/2019] [Accepted: 02/11/2020] [Indexed: 01/09/2023]
Abstract
A water soluble heteroglycan (THPS) of an average molecular weight ~1.98 × 105 Da was isolated from the aqueous extract of the fruit bodies of an edible mushroom Termitomyces heimii. Structural characterization of THPS was carried out using acid hydrolysis, methylation analysis, periodate oxidation, Smith degradation and 1D/2D NMR studies. Sugar analysis indicated the presence of glucose, mannose, galactose, and fucose in a molar ratio of nearly 6:2:2:1. The repeating unit of the THPS had a backbone consisting of four (1 → 3)-β-d-glucopyranosyl, one (1 → 6)-β-d-glucopyranosyl, two (1 → 3)-α-D-manopyranosyl, and two (1 → 6)-α-D-galactopyranosyl residues, out of which one (1 → 3)-β-d-glucopyranosyl residue was branched at O-6 position with terminal β-d-glucopyranosyl residue and one (1 → 6)-α-D-galactopyranosyl residue was branched at O-2 position with terminal α-L-fucopyranosyl residue.
Collapse
|
8
|
Chakraborty I, Sen IK, Mondal S, Rout D, Bhanja SK, Maity GN, Maity P. Bioactive polysaccharides from natural sources: A review on the antitumor and immunomodulating activities. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2019.101425] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
|
9
|
Structural characterisation and cholesterol efflux improving capacity of the novel polysaccharides from Cordyceps militaris. Int J Biol Macromol 2019; 131:264-272. [DOI: 10.1016/j.ijbiomac.2019.03.078] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 03/01/2019] [Accepted: 03/11/2019] [Indexed: 10/27/2022]
|
10
|
Yan J, Zhu L, Qu Y, Qu X, Mu M, Zhang M, Muneer G, Zhou Y, Sun L. Analyses of active antioxidant polysaccharides from four edible mushrooms. Int J Biol Macromol 2019; 123:945-956. [DOI: 10.1016/j.ijbiomac.2018.11.079] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Revised: 09/16/2018] [Accepted: 11/12/2018] [Indexed: 01/27/2023]
|
11
|
Mushrooms: Isolation and Purification of Exopolysaccharides. Fungal Biol 2018. [DOI: 10.1007/978-3-030-02622-6_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
12
|
Li X, Wang L, Wang Z. Structural characterization and antioxidant activity of polysaccharide from Hohenbuehelia serotina. Int J Biol Macromol 2017; 98:59-66. [DOI: 10.1016/j.ijbiomac.2016.12.089] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Revised: 11/25/2016] [Accepted: 12/30/2016] [Indexed: 01/01/2023]
|
13
|
Green conversion of graphene oxide to graphene nanosheets and its biosafety study. PLoS One 2017; 12:e0171607. [PMID: 28158272 PMCID: PMC5291545 DOI: 10.1371/journal.pone.0171607] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 01/23/2017] [Indexed: 11/19/2022] Open
Abstract
Chemical reduction of graphene oxide (GO) to graphene employs the use of toxic and environmentally harmful reducing agents, hindering mass production of graphene which is of tremendous technological importance. In this study we report a green approach to the synthesis of graphene, bio-reduced by crude polysaccharide. The polysaccharide reduces exfoliated GO to graphene at room temperature in an aqueous medium. Transmission electron microscopy image provides clear evidence for the formation of few layer graphene. Characterization of the resulting polysaccharide reduced GO by Raman spectroscopy, Fourier transform infrared spectroscopy and Energy dispersive X-ray analysis confirms reduction of GO to graphene. We also investigated the degree of biosafety of the reduced GO and found it to be safe under 100 μg/ml.
Collapse
|
14
|
Polysaccharide of an edible truffle Tuber rufum: Structural studies and effects on human lymphocytes. Int J Biol Macromol 2017; 95:1037-1048. [DOI: 10.1016/j.ijbiomac.2016.10.092] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Revised: 10/20/2016] [Accepted: 10/26/2016] [Indexed: 01/15/2023]
|
15
|
Ruthes AC, Smiderle FR, Iacomini M. Mushroom heteropolysaccharides: A review on their sources, structure and biological effects. Carbohydr Polym 2016; 136:358-75. [DOI: 10.1016/j.carbpol.2015.08.061] [Citation(s) in RCA: 116] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 08/17/2015] [Accepted: 08/19/2015] [Indexed: 01/10/2023]
|
16
|
Heteroglycan of an edible mushroom Termitomyces clypeatus: structure elucidation and antioxidant properties. Carbohydr Res 2015; 413:30-6. [DOI: 10.1016/j.carres.2015.05.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Revised: 05/07/2015] [Accepted: 05/09/2015] [Indexed: 11/20/2022]
|
17
|
Acharya K, Ghosh S, Khatua S, Mitra P. Pharmacognostic standardization and antioxidant capacity of an edible mushroom Laetiporus sulphureus. J Verbrauch Lebensm 2015. [DOI: 10.1007/s00003-015-0977-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
18
|
Maity P, Sen IK, Maji PK, Paloi S, Devi KSP, Acharya K, Maiti TK, Islam SS. Structural, immunological, and antioxidant studies of β-glucan from edible mushroom Entoloma lividoalbum. Carbohydr Polym 2015; 123:350-8. [DOI: 10.1016/j.carbpol.2015.01.051] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Revised: 01/13/2015] [Accepted: 01/14/2015] [Indexed: 10/24/2022]
|
19
|
Studies on antioxidative and immunostimulating fucogalactan of the edible mushroom Macrolepiota dolichaula. Carbohydr Res 2015; 413:22-9. [PMID: 26074030 DOI: 10.1016/j.carres.2015.05.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Revised: 05/13/2015] [Accepted: 05/16/2015] [Indexed: 11/23/2022]
Abstract
A water soluble fucogalactan (PS-II) of an average molecular weight ∼1.2×10(5) Da was isolated from the aqueous extract of an edible mushroom Macrolepiota dolichaula. It was composed of fucose, galactose and 3-O-methyl galactose in a molar ratio of nearly 1:4:1. Structural characterization of PS-II was carried out using total hydrolysis, methylation analysis, Smith degradation, and 1D/2D NMR experiments. These results indicated that the proposed repeating unit of the PS-II had a backbone chain consisting of four (1→6)- linked α-d-Galp residues, one residue methylated at O-3, and another one substituted at O-2 by (1→2)-α-d-Galp residue, which is terminated with a α-l-Fucp moiety. The PS-II exhibited the antioxidant properties in different in vitro test systems, and also showed in vitro macrophage activation in RAW 264.7 cell line as well as splenocyte and thymocyte activation in mouse cell culture medium.
Collapse
|
20
|
Maity P, Nandi AK, Sen IK, Pattanayak M, Chattopadhyay S, Dash SK, Roy S, Acharya K, Islam SS. Heteroglycan of an edible mushroom Entoloma lividoalbum: Structural characterization and study of its protective role for human lymphocytes. Carbohydr Polym 2014; 114:157-165. [DOI: 10.1016/j.carbpol.2014.07.080] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 07/22/2014] [Accepted: 07/29/2014] [Indexed: 10/24/2022]
|
21
|
Nandi AK, Samanta S, Maity S, Sen IK, Khatua S, Devi KSP, Acharya K, Maiti TK, Islam SS. Antioxidant and immunostimulant β-glucan from edible mushroom Russula albonigra (Krombh.) Fr. Carbohydr Polym 2014; 99:774-82. [DOI: 10.1016/j.carbpol.2013.09.016] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Revised: 09/03/2013] [Accepted: 09/06/2013] [Indexed: 11/26/2022]
|
22
|
Maity S, Bhunia SK, Sen IK, Mandal EK, Maity K, Behera B, Maiti TK, Mallick P, Sikdar SR, Islam SS. A heteropolysaccharide from an edible hybrid mushroom pfle 1p: structural and immunostimulating studies. Carbohydr Res 2013; 374:89-95. [DOI: 10.1016/j.carres.2013.04.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Revised: 04/03/2013] [Accepted: 04/07/2013] [Indexed: 11/27/2022]
|