scholarly journals ANTIMICROBIAL SCREENING AND CHARACTERIZATION OF SOIL FUNGI AT KALABURAGI REGION OF KARANATAKA, INDIA

2021 ◽  
Vol 10 (10) ◽  
Keyword(s):  
Soil Fungi ◽  
Antimicrobial Screening

scholarly journals Synthesis And Characterization Of Methyl 4, 6-O-Enzylidene- ?-D-Glucopyranoside Derivatives

2013 ◽  
Vol 25 (2) ◽  
pp. 101-109 ◽  
Author(s):  
Sarkar MA Kawsar ◽  
Abul KMS Kabir ◽  
MOhammad MR Bhuiyan ◽  
Mohammad M Manik
Keyword(s):  
Chemical Society ◽  
Synthesis And Characterization ◽  
Antimicrobial Screening ◽  
Excellent Yield ◽  
Direct Acylation ◽  
Molecular Framework ◽  
Acyl Derivatives

Regioselective benzoylation of methyl 4,6-O-benzylidene-?-D-glucopyranoside (1) using direct acylation method furnished the methyl 4,6-O-benzylidene-2-O-(4-t-butylbenzoyl)- ?-D-glucopyranoside (2) in an excellent yield. In order to obtain newer products for antimicrobial screening studies, the 2-O-4-t-butylbenzoyl derivative was further transformed to a series of 3-O-acyl derivatives (2-12) containing a wide variety of functionalities in a single molecular framework. Journal of Bangladesh Chemical Society, Vol. 25(2), 101-109, 2012 DOI: http://dx.doi.org/10.3329/jbcs.v25i2.15045

scholarly journals Synthesis and Antimicrobial Screening of New Pyrazolines Derived From Chalcones of Vanillin Analog

2016 ◽  
Vol 8 (02) ◽  
Author(s):  
Krushnkumar Karangiya ◽  
Jatin Upadhyay
Keyword(s):  
Antimicrobial Screening ◽  
Elemental Analyses

In present study the new series of 3-(Aryl)-5-[4-(2, 4-Dichlorophenylmethoxy)-3-methoxyphenyl]-4, 5-dihydro pyrazoline (2a-k) and 3-(Aryl)-5-[4-(2, 4-Dichlorophenylmethoxy)-3-methoxyphenyl]-4, 5-dihydroacetyl pyrazoline (3a-k) derivatives were synthesized from various substituted 3-Methoxy-4-(2, 4-Dichlorophenyl methoxy) chalcones (1a-k). The new chalcones were synthesized using various acetophenones with newly synthesized aldehyde of vanillin analog by Claisen-Schmidt condensation. Characterization of pyrazoline derivatives have been established on the basis of IR, NMR, Mass and elemental analyses. The derivatives were screened for their in vitro antimicrobial Screening.

Production of amylase by soil fungi and partial biochemical characterization of amylase of a selected strain (Aspergillus fumigatus Fresenius)

1993 ◽  
Vol 39 (7) ◽  
pp. 681-685 ◽  
Author(s):  
Claudia M. Domingues ◽  
Rosane M. Peralta
Keyword(s):  
Aspergillus Fumigatus ◽  
Soil Fungi ◽  
Biochemical Characterization ◽  
Amylase Activity ◽  
Carbon Sources ◽  
Lignocellulosic Materials ◽  
Liquid Media ◽  
Maximal Yield ◽  
High Enzymatic Activity

Filamentous fungi from soil were screened for their ability to produce amylases in semisolid and liquid media with wheat bran. A selected strain identified as Aspergillus fumigatus Fresenius showed high enzymatic activity for α-amylase and glucoamylase. The maximal yield of these amylases was obtained when lignocellulosic materials were the carbon sources. The optimal pH and temperature were 6.0 and 50 °C, respectively, for both enzymes. α-Amylase activity was more thermostable than glucoamylase activity.Key words: amylolitic fungi, α-amylase, glucoamylase, Aspergillus fumigatus.

The location and analysis of melanins in the cell walls of some soil fungi

1974 ◽  
Vol 20 (10) ◽  
pp. 1379-1386 ◽  
Author(s):  
D. H. Ellis ◽  
D. A. Griffiths
Keyword(s):  
Cell Walls ◽  
Soil Fungi ◽  
Degradation Products ◽  
Published Data ◽  
X Ray Diffraction ◽  
Ir Radiation ◽  
X Ray ◽  
Ultrathin Sections ◽  
Plant Sources

Electron-dense particles of melanin were located in ultrathin sections of: the hyphal walls of Amorphotheca resume; the aleuriospore walls of Epicoccum nigrum and Humicola grisea; the sclerotial walls of Colletotrichum coccodes; and both within and between the microsclerotial cell walls of Verticillium dahliae. Melanin was extracted with KOH from each of the fungi, but, because of rapid oxidation of the pigment in air, extraction and analysis was carried out under nitrogen. The pigments were examined spectrophotometrically under UV and IR radiation and by means of x-ray diffraction. Characterization of the melanin in terms of its degradation products indicated it to be indolic in nature. These results are compared with published data on other melanins extracted from animal and plant sources.

Biosynthesis, characterization of silver nanoparticles and antimicrobial screening by Oscillatoria Annae

2020 ◽  
Author(s):  
S. Geetha ◽  
K. Vijayakumar ◽  
K. R. Aranganayagam ◽  
G. Thiruneelakandan
Keyword(s):  
Silver Nanoparticles ◽  
Antimicrobial Screening

scholarly journals Isolation and characterization of chitinase from soil fungi, Paecilomyces sp.

2016 ◽  
Vol 50 (4) ◽  
pp. 232-242 ◽  
Author(s):  
Methanee Homthong ◽  
Anchanee Kubera ◽  
Matana Srihuttagum ◽  
Vipa Hongtrakul
Keyword(s):  
Soil Fungi ◽  
Isolation And Characterization
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