Evaluation of Antibacterial Activity of Ethanol Leaf Extracts of Psidium Guajava Linn. Against Clinical Isolates From Wound Infections

Anuswedha, Ananthan

doi:10.20959/wjpps201705-9153

Cited by 2 publications

(2 citation statements)

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“…The The results revealed that the culture filtrate of Streptomyces species effectively scavenged DPP and ABTS radicals in a concentration dependent manner when compared with the IC50 values [17,21]. Production of protease from the strain of streptomyces was simple and it will be easy to scale up, as this actinobacteria grows on simple media with feathers as a sole source of carbon, nitrogen, and energy, thus allowing its enzyme production from an inexpensive substrate and a commercial potential with low productivity.…”

Section: Discussionmentioning

confidence: 99%

Antioxidant Potential of Extra Polymeric Substances From Marine Actinobacteria Streptomyces Species

Ganta

Arivarasu

Sivaperumal

2021

JPRI

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Introduction: The Actinobacteria are a phylum of Gram-positive bacteria. They can be terrestrial or aquatic. They are of great economic importance to humans because agriculture and forests depend on their contributions to soil systems. They are more abundant in soils than other media, especially in alkaline soils and soils rich in organic matter, where they constitute an important part of the microbial population. Material and Methods: The sediment sample was collected from the Gulf of Mannar, Tamilnadu. The collected sample was sun dried for 48 hrs and turned into fine powder by mortar and pestle. The colour of the mature sporulating aerial mycelium was recorded in naked eye. Results: The antioxidant potential of actinobacterial EPS was determined on the basis of their scavenging activity of the stable 1,1- diphenyl-2-picryl hydrazyl (DPPH) free radical. Different concentrations (0.5-3mg/ml) of samples were mixed with 2.9ml diphenylpicrylhydrazyl (DPPH) solution (120µM) in methanol and incubated in darkness at 37°c for 30 minutes. The absorbance was recorded at 517 nm. Data were implied as mean ± SEM. Conclusion: The produced melanin pigment from the Actinobacteria of streptomyces species was found to have potent antioxidant potential activity. Further characterisation and bio active properties should be done in the further studies, and more articles in future are yet to come in various properties of melanin pigment.

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Section: Discussionmentioning

confidence: 99%

Antioxidant Potential of Extra Polymeric Substances From Marine Actinobacteria Streptomyces Species

Ganta

Arivarasu

Sivaperumal

2021

JPRI

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“…In the literature, an antimicrobial effect of allspice EO was also reported against S. aureus and E. coli (Oussalah et al, 2006;Oussalah et al, 2007;Lowe et al, 2017;Asha et al, 2013), S. typhi, and P. aeruginosa (Kumar et al, 2010) and S. typhimurium and P. putida (Oussalah et al, 2006;Oussalah et al, 2007).…”

Section: Antimicrobial Assaymentioning

confidence: 92%

Allspice (Pimenta Dioica Lindl) leaves essential oil as a potential antioxidant and antimicrobial source for use in mechanically deboned poultry meat

Andrade

Ferreira

Cardoso

et al. 2023

Braz. J. Food Technol.

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This work aimed to characterize the allspice leaves essential oil (EO) and evaluate its antimicrobial activity against specific food-borne pathogenic microorganisms as well as its in vitro antioxidant activity. The antioxidant activity of different concentrations (0, 500 and 1000 mg/kg) of allspice EO was also evaluated in mechanically deboned poultry meat (MDPM) during storage of up to 10 days at 2 °C. Allspice EO presented as major compounds eugenol (55.52%), myrcene (22.53%) and chavicol (5.12%), and was effective against Gram-negative (P. aeruginosa) and Gram-positive (Staphylococcus aureus) bacteria, having greater (p < 0.05) antimicrobial activity than its main component eugenol. In the in vitro antioxidant assays, the allspice EO had higher radical scavenging activity (90% versus 65%) than eugenol, presenting lower IC50 values (2.71 versus 9.49 µg/mL), but the antioxidant activity by the 2-thiobarbituric acid reactive substances (TBARS) did not differ (p > 0.05) from the synthetic antioxidant butyl-hydroxytoluene (BHT). Incorporating allspice EO in MDPM suppressed lipid oxidation during 8 days of cold storage, regardless of the amount used, exhibiting lower (p < 0.05) TBARS values during all storage periods than MDPM without EO. Allspice leaves EO had the high antioxidant potential to be used in MDPM and could also contribute an antimicrobial effect to the product in which the MDPM is used.

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Evaluation of Antibacterial Activity of Ethanol Leaf Extracts of Psidium Guajava Linn. Against Clinical Isolates From Wound Infections

Cited by 2 publications

References 0 publications

Antioxidant Potential of Extra Polymeric Substances From Marine Actinobacteria Streptomyces Species

Antioxidant Potential of Extra Polymeric Substances From Marine Actinobacteria Streptomyces Species

Allspice (Pimenta Dioica Lindl) leaves essential oil as a potential antioxidant and antimicrobial source for use in mechanically deboned poultry meat

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