Optimization of Culture Conditions for Enhanced Antimicrobial Activity of Rhodococcus erythropolis VLK-12 Isolated from South Coast of Andhra Pradesh, India

2014 ◽  
Vol 4 (1) ◽  
pp. 63-79 ◽  
Author(s):  
Krishna Naragani
Keyword(s):  
Antimicrobial Activity ◽  
Andhra Pradesh ◽  
Rhodococcus Erythropolis ◽  
Culture Conditions ◽  
South Coast ◽  
Optimization Of Culture Conditions

scholarly journals Isolation and Optimization of Culture Conditions of Thraustochytrium kinnei for Biomass Production, Nanoparticle Synthesis, Antioxidant and Antimicrobial Activities

2021 ◽  
Vol 9 (6) ◽  
pp. 678
Author(s):  
Kaliyamoorthy Kalidasan ◽  
Nabikhan Asmathunisha ◽  
Venugopal Gomathi ◽  
Laurent Dufossé ◽  
Kandasamy Kathiresan
Keyword(s):  
Antimicrobial Activity ◽  
Gold Nanoparticles ◽  
Silver Nanoparticles ◽  
Biomass Production ◽  
Petroleum Ether Extract ◽  
Antimicrobial Activities ◽  
Culture Conditions ◽  
Gold And Silver Nanoparticles ◽  
Optimization Of Culture Conditions ◽  
Antioxidant And Antimicrobial Activities

This work deals with the identification of a predominant thraustochytrid strain, the optimization of culture conditions, the synthesis of nanoparticles, and the evaluation of antioxidant and antimicrobial activities in biomass extracts and nanoparticles. Thraustochytrium kinnei was identified as a predominant strain from decomposing mangrove leaves, and its culture conditions were optimized for maximum biomass production of 13.53 g·L−1, with total lipids of 41.33% and DHA of 39.16% of total fatty acids. Furthermore, the strain was shown to synthesize gold and silver nanoparticles in the size ranges of 10–85 nm and 5–90 nm, respectively. Silver nanoparticles exhibited higher total antioxidant and DPPH activities than gold nanoparticles and methanol extract of the strain. The silver nanoparticles showed higher antimicrobial activity than gold nanoparticles and petroleum ether extract of the strain. Thus, Thraustochytrium kinnei is proven to be promising for synthesis of silver nanoparticles with high antioxidant and antimicrobial activity.

Studies on Phytochemical, Antimicrobial activity and Micro propagation of Medicinal plants from Eastern Ghats of Andhra Pradesh

2021 ◽  
pp. 111-115
Author(s):  
Darsi Phebe Sarah Koti Ratnam
Keyword(s):  
Antimicrobial Activity ◽  
Medicinal Plants ◽  
Andhra Pradesh ◽  
Eastern Ghats ◽  
Total Phenolic ◽  
Rauwolfia Serpentina ◽  
Alstonia Scholaris ◽  
Soxhlet Apparatus ◽  
Medicinal Plant Extracts ◽  
Micro Propagation

The aim of the present study was to investigate the presence of phyto chemical, antimicrobial activities and micro propagation of the selected medicinal plants i.e. Rauwolfia serpentina, Adhatoda vasica and Alstonia scholaris. These endemic plants belong to Apocynaceae and were collected from higher altitudes of Eastern Ghats, Lambasingi forest region, Andhra Pradesh India. To determine the total phenolic and flavonoid contents, Soxhlet apparatus was used for this study. Solvents used were in this study are water, ethyl acetate, chloroform and methanol. Among them the solvent methanolic extract of Rauwolfia serpentina (57.15±1.2) and Alstonia scholaris (55.06±0.7) showed high content of saponins. The test microrganism which were studied against the efficacy of selected medicinal plant extracts were, two bacterial strians i.e., Streptococcus pyogenes, Pseudomonas aeruginosa and two fungal strains Aspergillus niger and Vibrio cholera. The antimicrobial activity was proved that the methanol extracts was found to be maximum antimicrobial growth inhibition. The simple and effective protocol was developed to propagate the Rauwolfia plant from nodal explants. Maximum no of 95% plantlets regenerated successfully. These propagated plantlets were hardened to survive in vivo conditions.

Optimization of Culture Conditions to Support Long-Term Self-Renewal of Buffalo (Bubalus bubalis) Embryonic Stem Cell-Like Cells

2011 ◽  
Vol 13 (6) ◽  
pp. 539-549 ◽  
Author(s):  
Ruchi Sharma ◽  
Aman George ◽  
Nitin Manchindra Kamble ◽  
Karn Pratap Singh ◽  
Manmohan Singh Chauhan ◽  
...  
Keyword(s):  
Stem Cell ◽  
Embryonic Stem Cell ◽  
Embryonic Stem ◽  
Bubalus Bubalis ◽  
Culture Conditions ◽  
Self Renewal ◽  
Optimization Of Culture Conditions
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