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1. (Article ID: 7375)
Dey B, Bhunia SK, Maity KK, Patra S, Mandal S, Maiti S, Maiti TK, Sikdar SR, Islam SS
Glucans of Pleurotus florida blue variant: isolation, purification, characterization and immunological studies
International Journal of Biological Macromolecules 50(3) (2012)
591-597
Two different glucans (PS-I and PS-II) were isolated from the alkaline extract of the fruiting bodies of an edible mushroom, Pleurotus florida blue variant and the PS-I showed macrophage, splenocyte and thymocyte activations. On the basis of sugar analysis, methylation analysis, periodate oxidation, and NMR studies (1H, 13C, DEPT-135, DQF-COSY, TOCSY, NOESY, ROESY, HMQC and HMBC), the structure of the repeating unit of these polysaccharides were established.
structure, NMR spectroscopy, mushroom polysaccharide, Immunoactivation, Pleurotus florida blue variant
NCBI PubMed ID: 22322111Publication DOI: 10.1016/j.ijbiomac.2012.01.031Journal NLM ID: 7909578Publisher: Butterworth-Heinemann
Correspondence: Islam SS
yahoo.com>
Institutions: Department of Chemistry and Chemical Technology, Vidyasagar University, Midnapore, India, Division of Plant Biology, Bose Institute, Kolkata, India, Department of Biotechnology, Indian Institute of Technology (IIT) Kharagpur, Kharagpur, India
Methods: 13C NMR, 1H NMR, methylation, periodate oxidation, GLC-MS, NMR-2D, GLC, paper chromatography, extraction, gel chromatography, optical rotation measurement, generation of reactive oxygen species (ROS), cytokine production, DEPT, MTT, splenocyte proliferation assay, thymocyte proliferation assay
The publication contains the following compound(s):
- Compound ID: 18745
Structure type: homopolymer
; 202000
Trivial name: 1-6-β-glucan
Compound class: O-polysaccharide, cell wall polysaccharide, D-glucan
Reference(s) to other database(s): GTC:G26777BZ
- Compound ID: 18746
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a-D-Glcp-(1-4)-+
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-3)-b-D-Glcp-(1-3)-b-D-Glcp-(1-3)-b-D-Glcp-(1-3)-a-D-Glcp-(1- |
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Structure type: polymer chemical repeating unit
; 176000
Trivial name: (1-3,4)-glucan, pleurotan
Compound class: O-polysaccharide, cell wall polysaccharide, D-glucan
Reference(s) to other database(s): GTC:G21016AK
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2. (Article ID: 8522)
Abdel-Aziz MS, Ghareeb MA, Saad AM, Refahy LA, Hamed AA
Chromatographic isolation and structural elucidation of secondary metabolites from the soil-inhabiting fungus Aspergillus fumigatus 3T-EGY
Acta Chromatographica 30(4) (2018)
243-249
Eight compounds were isolated and identified from the soil-inhabiting fungus Aspergillus fumigatus 3T-EGY, namely, stearic acid (1), α-linolenic acid (2), physcion (3), di-(2-ethylhexyl) phthalate (4), 2,4,5,17-tetramethoxy pradimicin lactone (5), 3,5-dihydroxy-7-O-α-rhamnopyranoyl-2H-chromen-2-one (6), juglanthraquinone A-5-O-D-rhodosamine-(4′→1″)-2-deoxy-D-glucose (4″→1″′)-cinerulose B (7), and micropeptin (8). Their structures were determined on the basis of one-dimensional (1D-) and two-dimensional nuclear magnetic resonance (2D-NMR) [1H-, 13C-NMR, 1H-1H COSY (COrrelated SpectroscopY), and 1H-13C HMBC (Heteronuclear Multiple Bond Correlation) spectroscopy]. Compound 7 showed moderate in vitro antimicrobial activity against three pathogenic strains with inhibition zones values were ranged from 9.0 to 10.66 mm compared to neomycin as a positive control with inhibition zones values were ranged from 14.0 to 19.0 mm.
phenolics, Aspergillus fumigatus 3T-EGY, juglanthraquinone A triglycoside, VLC, in vitro antimicrobial activity
Publication DOI: 10.1556/1326.2017.00329Journal NLM ID: 9816232Publisher: Katowice, Poland: Institute of Chemistry, Silesian University
Correspondence: Ghareeb MA
tbri.gov.eg>
Institutions: Microbial Chemistry Department, Genetic Engineering and Biotechnology Division, National Research Center, Dokki-Giza, Egypt, Medicinal Chemistry Department, Theodor Bilharz Research Institute, Kornaish El-Nile, Giza, Egypt
Methods: 13C NMR, 1H NMR, paper chromatography, CC, melting point determination, HMBC, antimicrobial assay, COSY, VLC
The publication contains the following compound(s):
- Compound ID: 21175
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a-L-Rhap-(1-7)-Subst
Subst = 3,5,7-trihydroxy-coumarin = SMILES O=c2oc1c{7}c(O)cc(O)c1cc2O |
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Structure type: monomer
Compound class: glycoside, coumarin glycoside
- Compound ID: 21176
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CineruloseAp-(1-4)-D-Olip-(1-4)-D-Rhonp-(1-5)-Subst
CineruloseA = 2,3,6-trideoxy-L-glycero-hexos-4-ulose = SMILES C[C@H]1C(=O)CC{1}[CH](O1)O;
Subst = juglanthraquinone A = SMILES CCOC(C(C=C(C=C1C(C2{5}C(O)=CC=CC23)=O){15}C(O)=O)=C1C3=O)=O |
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Structure type: oligomer
Compound class: glycoside
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