Antioxidant and antimicrobial investigations of Elaeocarpus tectorius (Lour.) Poir. fruits against urinary tract infection pathogens.

Manoharan, Ashwini Lydia; Thakur, Suman; Muniyandi, Kasipandi; Jagadeesan, Gayathri; Sathyanarayanan, Saikumar; Nataraj, Gayathri; Thangaraj, Parimelazhagan

doi:10.1016/j.bcab.2019.101260

Cited by 21 publications

(16 citation statements)

References 25 publications

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“…Under oxidative stress condition, free radicals that generated via metabolic process plays a key role in the onset of various pathophysiological disorders including cancer, proliferative diseases, diabetes mellitus and early aging (Manoharan et al, 2019). Numerous synthetic drugs have been used to inhibit the interaction of free radicals and pathogenic microbes which could worsen the severity of a disease.…”

Section: Introductionmentioning

confidence: 99%

Total Phenolic, Resveratrol Content, Antioxidant and Antimicrobial Activity in Five Cultivars of Peanut Sprouts

Liu

Zhang

et al. 2020

American Journal of Biochemistry and Biotechnology

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Peanut sprout is one of the potential natural sources of bioactive substances. In this study, five different peanut cultivars were conducted to germination, the change in total phenolic compounds, resveratrol content, antioxidant and antimicrobial activity were investigated. The sprouts of five peanut cultivars (Fuhua, Silihong, Dabaisha, Xiaobaisha and Huayu) were extracted using 75% ethanol for 3 h and the crude extracts were collected. When the five peanut kernels were germinated at 25C for 5 days, the total phenolic compounds increased significantly from range of 0.55 to 0.96 (μg Gallic acid/g) up to the range of 1.97 to 2.44 (μg Gallic acid/g) and the resveratrol contents showed similar trend, from range of 8.94 to 15.62 μg/g up to the range of 31.74 to 46.49 μg/g depending upon peanut cultivar. Among the five cultivars, Xiaobaisha showed the highest phenolic content [2.44 (μg Gallic acid/g)], expressed the highest 2,2-diphenyl-1-picrylhydrazyl scavenging value [(84.86±4.02) mmol/L TE/g dry weight] and ferric ion reducing antioxidant power scavenging value [(92.98±3.71) mmol/L TE/g dry weight] on the fifth day. In the antimicrobial evaluation the five sprout extracts were highly effective in inhibitory zone assay followed by Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) analysis against five pathogen microbial. In comparison with other peanut cultivars, the inhibitory effects were strongest in Silihong, the average MIC and MBC values against 5 spoilage bacteria were 10.66 and 28.52 mg/mL, respectively. In summary, this work provides evidences that Xiaobaisha and Silihong might be applied as antioxidant and antibacterial agent in food and pharmaceutical industries.

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Section: Introductionmentioning

confidence: 99%

Total Phenolic, Resveratrol Content, Antioxidant and Antimicrobial Activity in Five Cultivars of Peanut Sprouts

Liu

Zhang

et al. 2020

American Journal of Biochemistry and Biotechnology

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“…The DPPH (2,2‐diphenyl‐1‐picrylhydrazyl) assay, a free radical method that was used for determining the antioxidant activity by electron transfer which generates a violet solution in methanol. The presence of antioxidant molecule in sample causes the free radicals to be stable at room temperature that yields a colorless methanol solution (Manoharan et al, 2019). The sample extract was prepared in methanolic solution, about 2 ml of DPPH solution was added to 25 μl of each sample extract and allowed to incubate at 25°C for 30 min in the darkroom.…”

Section: Methodsmentioning

confidence: 99%

Evaluation of antimicrobial and antibiofilm properties of chitosan edible coating with plant extracts against Salmonella and E. coli isolated from chicken

Johnson

Thakur

Etikala

et al. 2022

Food Processing Preservation

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This study aims to investigate the effect of chitosan edible coating with medicinal leaf extracts, their antibiofilm and antimicrobial activity against the selected strains of Salmonella spp. and E. coli isolated from the chicken sample. The presence of bioactive compounds in leaf extracts was confirmed by antioxidant assay, polyphenolic content, UV–VIS, FTIR, and GC–MS analysis. Chitosan with M. piperita and P. amboinicus (ECMO) had a greater zone of inhibition against the multidrug‐resistant strains (Salmonella spp., 22.10 ± 1.15; E. coli, 24.50 ± 0.500) and biofilm inhibition percentage was ≤96% in both Salmonella spp. and E. coli. In shelf‐life analysis, ECMO significantly lowered the growth of pathogens during 15 days of storage period. The results suggest that ECMO was identified as the impeding agent for biofilms and foodborne pathogens. To our knowledge, this is the first study demonstrating the antibiofilm and antibacterial properties of chitosan with M. piperita and P. amboinicus. Novelty impact statement The combination of chitosan with M. piperita and P. amboinicus is the first study on chicken that significantly controlled pathogens during storage period at 4°C. Antibiofilm property was exhibited by chitosan with M. piperita and P. amboinicus against Salmonella spp. and E. coli. Chitosan with M. piperita and P. amboinicus, perchance a new natural preservative for perishable foods.

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“…In Table 5, showed that antioxidant activity of a fruit solvent extract, the highest scavenging activity was obtained in ethyl acetate extract DPPH 83.57% total antioxidant 0.06 μg/mL, ABTS 78.76% and FRAP 0.04 μg/mL which metal chelating activity 0.06 μg/mL in water extract if compared to other solvents extract. The antioxidant capacity was observed in E. tectorius fruit extract to discover the ability of free radical scavenging properties do due to the presence of phenolic acids and vitamins (Manoharan et al, 2019). Many of them phenolics contain have been high levels of antioxidant activities (Razali et al, 2012).…”

Section: Antioxidant Activitymentioning

confidence: 99%

Phytochemical Screening, Antioxidant, Antidiabetic and Anticancer Activities of Elaeocarpus variabilis Fruit

Balamurugan

Sridhivya

Dharani

et al. 2022

Turkish JAF Sci.Tech.

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This study focused on the determination of secondary metabolites to an evaluation of the biological activity of Elaeocarpus variabilis Zmarzty fruit extract, an endemic medicinal plant. Their total Phenolic, tannin, flavonoids, alkaloids and saponins contents were quantified and their antioxidant activity, determined by DPPH, total antioxidant, ABTS, FRAP and Fe2+ chelating activity. The ethyl acetate extract exhibited the highest radical scavenging activity. The most relevant contents in total phenolics (Gallic Acid Equivalent mg/g), tannin (Gallic Acid Equivalent mg/g), total flavonoids (Rutin equivalent mg/g), total alkaloids (Quinine equivalent mg/g), and total saponin (Diosgenin equivalent mg/g) were observed. Significant correlations were established between antioxidant activity and secondary metabolites. Though the in vitro anti-diabetic activity was carried out using -amylase and -glucosidase inhibition, this indicates that the absorption and digestion of carbohydrates would probably reduce the blood glucose levels and hence help the management of type-2 diabetes. The ethyl acetate extract exhibited the potential of anticancer activity on human HT-29 colon cancer cell line IC50 values (30.0 ± 1.0) the valuable activity that compared to doxorubicin (17.0 ± 0.5). While this is the first study concerning extract from E. variabilis, our findings highlighted the richness’ in flavonoids of those extracts and their amazing potential as a source of antioxidant, anti-inflammatory, anti-diabetic, and anticancer agents.

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Antioxidant and antimicrobial investigations of Elaeocarpus tectorius (Lour.) Poir. fruits against urinary tract infection pathogens.

Cited by 21 publications

References 25 publications

Total Phenolic, Resveratrol Content, Antioxidant and Antimicrobial Activity in Five Cultivars of Peanut Sprouts

Total Phenolic, Resveratrol Content, Antioxidant and Antimicrobial Activity in Five Cultivars of Peanut Sprouts

Evaluation of antimicrobial and antibiofilm properties of chitosan edible coating with plant extracts against Salmonella and E. coli isolated from chicken

Phytochemical Screening, Antioxidant, Antidiabetic and Anticancer Activities of Elaeocarpus variabilis Fruit

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