scholarly journals Antimicrobial Activity of Pome granataum’s Endophytic Bacteria Against Pathogenic Microbe

2020 ◽  
Vol 20 (3) ◽  
pp. 446
Author(s):  
Putri Alfianti Sriwinahyu ◽  
Prapti Sedijani ◽  
Lalu Zulkifli
Keyword(s):  
Antimicrobial Activity ◽  
Endophytic Bacteria ◽  
Punica Granatum ◽  
Diffusion Method ◽  
Bacterial Isolates ◽  
Fruit Peel ◽  
Strong Activity ◽  
Fusarium Sp ◽  
Punica Granatum L ◽  
Antimicrobial Assay

White pomegranate (Punica granatum L.) is one of potential plant that can be use as an antimicrobial. The objective of this study was to determine antimicrobial activity of endophytic bacteria from white pomegranate (Punica granatum L.) in inhibiting the growth of pathogenic microbia (Staphylococcus aureus, Streptococcus viridans, Shigella dysentriae, Klebsiella pneumoniae and Fusarium sp. fungi). The stages of the research were isolation endophytic bacteria, antimicrobial assay, and characterization of potential endophytic bacterial. Endophytic bacterial were isolated from bark, leaves, flower, and fruit peel of white pomegranate taken from Gebang Baru, Mataram District. Antimicrobial assay was then performed using agar diffusion method, using supernatant of endophytic bacteria, water as negative control or ciprofloxacin as positive control. The potential isolates were characterized using Gram staining and biochemical test. The results showed that 2 endophytic bacterial isolates (DNX2 and BNG1) show strong activity against S. aureus, 3 endophytic bacterial isolates (BTG1, DNX11, and BNG1) show strong activity against S dysentriae, and 1 isolate KLBX11 shows medium activity against Fusarium sp. fungi. Those isolates are gram-possitive with bacill-shaped and produce spores. It can be concluded that it is possible to obtain potential endophytic bacterial from white pomegranate are potential as an alternative source for antimicrobial compounds.

PHYTOCHEMICAL CONSTITUENTS, ANTIOXIDANT ACTIVITY AND ACUTE ORAL TOXICITY OF POMEGRANATE (PUNICA GRANATUM L.) FRUIT PEEL EXTRACT

2019 ◽  
pp. 7-14
Author(s):  
Hai Trieu Ly ◽  
Tuan Anh Vo ◽  
Viet Hong Phong Nguyen ◽  
Thi My Sa Pham ◽  
Bich Thao Lam ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Gallic Acid ◽  
Radical Scavenging ◽  
Dry Weight ◽  
Punica Granatum ◽  
Acute Oral Toxicity ◽  
Oral Toxicity ◽  
Fruit Peel ◽  
Total Polyphenol ◽  
Punica Granatum L

Background: The natural antioxidants have an important role in the prevention of many diseases. The aim of study is to investigate phytochemical components, antioxidant activity and acute oral toxicity of Pomegranate (Punica granatum L.) fruit peel (PFP) extract. Materials and methods: Phytochemicals of PFP were determined by qualitative chemical tests, thin layer chromatography, total polyphenol and flavonoid contents. The PFP extract was evaluated for antioxidant activity by DPPH assay and MDA assay. In vivo acute oral toxicity test was conducted using Karber-Behrens method to determine LD50. Results: Results illustrated that PFP mainly contains flavonoids, alkaloids, tannins, triterpenes, saponins, and coumarins. PFP extract exhibited the total polyphenol and flavonoid contents with 189.97 mg gallic acid equivalent/g dry weight and 9.42 mg quercetin equivalent/g dry weight, respectively. The DPPH free radical scavenging and anti-lipid peroxidation activities of PFP extract were expressed with IC50 value of 4.80 μg/mL and 0.38 μg/ mL, sequentially. Simultaneously, the Dmax (the maximum dose administered to mice that no toxicity was observed) of PFP extract was determined to be 21.28 g/kg, equivalent to 35.64 g dried herb. Conclusion: The PFP extract is relatively safe and revealed high antioxidant activity. Key words: Punica granatum L.; polyphenols; flavonoids; gallic acid; quercetin; antioxidant activity; acute oral toxicity

Identification of punicalagin as the bioactive compound behind the antimicrobial activity of pomegranate (Punica granatum L.) peels

2021 ◽  
Vol 352 ◽  
pp. 129396
Author(s):  
Clarisse Gosset-Erard ◽  
Minjie Zhao ◽  
Sonia Lordel-Madeleine ◽  
Saïd Ennahar
Keyword(s):  
Antimicrobial Activity ◽  
Bioactive Compound ◽  
Punica Granatum ◽  
Punica Granatum L

scholarly journals Characterization of bacteriocin and chitinase producing bacterial isolates with broad-spectrum antimicrobial activities

2021 ◽  
Vol 3 (8) ◽  
Author(s):  
Muhammad Yasir ◽  
Basit Zeshan ◽  
Nur Hardy A. Daud ◽  
Izzah Shahid ◽  
Hafza Khalid
Keyword(s):  
Antimicrobial Activity ◽  
Inhibitory Activity ◽  
Antifungal Drugs ◽  
Proteinase K ◽  
Diffusion Method ◽  
List Type ◽  
Bacterial Isolates ◽  
E Coli ◽  
Inhibitory Potential

Abstract There is a need for more efficient and eco-friendly approaches to overcome increasing microbial infections. Bacteriocins and chitinases from Bacillus spp. can be powerful alternatives to conventional antibiotics and antifungal drugs, respectively. The purpose of this study was to assess the inhibitory potential of bacteriocins and chitinase enzymes against multiple resistant bacterial and fungal pathogens. Bacterial isolates were selected by growth on minimal salts medium and after that were morphologically and biochemically characterized. The physiochemical characterization of bacteriocins was carried out. The inhibitory potential of bacteriocins towards six pathogenic bacteria was determined by the well diffusion assay while chitinase activity towards three fungal strains was determined by the dual plate culture assay. Two bacterial strains (WW2P1 and WRE4P2), out of nine showed inhibition of K. pneumonia, P. aeruginosa, E. coli and MRSA while WW4P2 was positive against S. typhimurium and E. coli and WRE10P2 against P. aeruginosa, S. pneumoniae. Two bacterial isolates (WW3P1 and WRE10P2) were chosen for further study on the basis of their antifungal activities. Of these, WW3P1 isolate was more effective against A. fumigatus as well as A. niger. The proteinaceous nature of the bacteriocins was confirmed by treatment of the crude extract with proteinase K. It was found that the inhibitory activity of strain WW3P1 against E. coli was highest at 20 °C, and against S. pneumoniae it was at 20 °C and pH 10 after treatment with EDTA. Inhibition by strain the WRE10P2 against P. aeruginosa was highest at 20 °C and pH 14. It was found that EDTA increased the inhibitory activity of strain WW2P1 against P. aeruginosa, K. pneumoniae and E. coli by 2 ± 0.235, 3.5 ± 0.288, 2.5 ± 1.040 times, respectively, of strain WRE4P2 against P. aeruginosa and E. coli by 2.5 ± 0.763, 2.7 ± 0.5 times, respectively, and of strain WRE10P2 against S. pneumoniae by 3 ± 0.6236 times. The isolates have promising inhibitory activity, which should be further analyzed for the commercial production of antimicrobials. Article highlights The current study aimed to isolate the microbiome from wheat plant (Triticum aestivum L.), to screen for bacteriocin production and to assess its antimicrobial activity against human pathogens. Forty-one phenotypically different bacterial colonies were subjected to bacteriocin purification from which 25 colonies showed positive reactions. These 25 bacterial isolates were screened against six different human bacterial pathogens using the well diffusion method to check the antimicrobial activity. Out of nine bacterial isolates, WW3P1 and WRE10P2 were able to degrade the chitin and utilize it as their sole energy source. Strain WRE4P2 exhibited partial inactivation in its activity against MRSA after treatment with proteinase K.

scholarly journals Characterization Of Phyto-Synthesized Silver Nanoparticles And Their Antimicrobial Activity Against Diabetic Foot Ulcer Bacterial Isolates

2021 ◽  
Vol 11 (6) ◽  
pp. 88-96
Author(s):  
Chhajed Shweta ◽  
Arora Asha
Keyword(s):  
Antimicrobial Activity ◽  
Silver Nanoparticles ◽  
Diabetic Foot ◽  
Foot Ulcer ◽  
Diabetic Foot Ulcer ◽  
Lower Limbs ◽  
Diffusion Method ◽  
Foot Ulcers ◽  
Diabetic Foot Ulcers ◽  
Bacterial Isolates

Diabetic Foot Ulcer (DFU) is one of the major complications of Diabetes. Patients with Diabetic Foot ulcers have a high susceptibility to microbial infections and are the leading cause of hospitalization and amputation of lower limbs. In the era of increased prevalence of bacterial resistance and outbreak of resistant infectious diseases, it is very essential to develop effective therapeutic strategies towards multi-drug resistant pathogens. The antimicrobial properties of silver nanoparticles have been well studied, therefore their use in biomedicine and pharmacology is a trend. Herein we present the use of Phyto-mediated synthesized AgNPs for the treatment of diabetic foot ulcers by topical administration. The nanoparticles were synthesized by reducing silver nitrate using Terminalia chebula fruit extract. The nanoparticles were analyzed and characterized using UV-Visible Spectrophotometer, FTIR, XRD, SEM with EDAX, TEM, and DLS. The synthesized silver nanoparticles were assayed for antimicrobial activity against five Diabetic Foot Ulcer bacterial isolates i.e. Escherichia coli, Klebsiella Pneumoniae, Pseudomonas aeruginosa, Streptococcus aureus, and Bacillus subtilis. The bactericidal property of synthesized nanoparticles was analyzed by the Agar well diffusion method, which revealed the remarkable antimicrobial effects against all the selective pathogenic bacterial isolates of Diabetic foot ulcers in the present study. These results constituted the basis for further studies on the use of plant-based silver nanoparticles for the treatment of Diabetic Foot ulcers from different origins

Salinity effects on colour and health traits in the pomegranate (Punica granatum L.) fruit peel

2014 ◽  
Vol 4 (1) ◽  
pp. 54 ◽  
Author(s):  
Hamutal Borochov Neori ◽  
Sylvie Judeinstein ◽  
Effi Tripler ◽  
Doron Holland ◽  
Naftali Lazarovitch
Keyword(s):  
Punica Granatum ◽  
Fruit Peel ◽  
Salinity Effects ◽  
Punica Granatum L

scholarly journals A scientific validation of In vitro anti-inflammatory activity of Punica granatum L. by human red blood cell membrane stabilization

2018 ◽  
Vol 6 (7) ◽  
pp. 2430
Author(s):  
Karunakar Kota ◽  
Sandhya Sharma ◽  
Jameela Tahashildar
Keyword(s):  
Methanolic Extract ◽  
Punica Granatum ◽  
Inflammatory Activity ◽  
Membrane Stabilization ◽  
Fruit Peel ◽  
Standard Drug ◽  
Membrane Lysis ◽  
Anti Inflammatory ◽  
Punica Granatum L

Background: In recent years there has been growing interest in therapeutic use of natural products, especially those derived from plants. P. granatum is very common dietary ingredient in many parts of India and has remarkable biological and medicinal properties.Methods: In the present study, the methanolic extract of fruit peels of Punica granatum Linn. (MEPG) were investigated for anti-inflammatory activity by simple, reliable, less toxic and less time consuming HRBC membrane stabilization method. The presentation of hypo tonicity induced HRBC membrane lysis was taken a measure of anti-inflammatory activity. Their activities were compared with standard drug diclofenac.Results: The results of the study demonstrated that P. granatum contains active constituents, which possess anti-inflammatory activity which is probably related to the inhibition of prostaglandin synthesis.Conclusions: It is concluded that methanolic extract of P. granatum fruit peel possesses significant anti-inflammatory activity and this is a possible rationale for its folkloric use as an anti-inflammatory agent.

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