Antimicrobial studies on three Hypericum species from Turkey

Dülger, Başaran; Gönüz, Ahmet; Bi̇len, Soner; Jäger, Anna K.

doi:10.1016/s0254-6299(15)30156-3

Cited by 12 publications

(8 citation statements)

References 8 publications

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“…Previous reports showed that some Hypericum species growing in various regions of the world have remarkably broad spectrum of antimicrobial activities (Rabanal et al 2002;Dulger et al 2005). Rabanal et al (2002) investigated antimicrobial activities on these species of Hypericum from the Canary Islands and MIC values were found between 30 and 290 µg/mL.…”

Section: Antimicrobial Activities Of Extractsmentioning

confidence: 99%

Assessment of Phenolic Content, Antioxidant Properties and Antimicrobial Activity of Flower and Leaf Extracts from Some Hypericum Species Affected by Wild Habitat Altitude

Özdemir

Uzun

Gül

et al. 2020

Alınteri Zirai Bilimler Dergisi

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In this study, determination of habitat altitude effect on the total phenolic contents, antioxidant and antimicrobial activities of flower and leaf extracts from Hypericum montbretii, H. orientale and H. perforatum species was aimed. The plants were collected randomly from forages (altitudes were ranged from 430 to 1105 m a.s.l.) located in Western Black Sea Region, Turkey. Antioxidant properties of ethanolic extracts were determined with DPPH and ABTS assay and antimicrobial activities of the extracts on Bacillus pumilis NRRL BD-142, B. subtilis NRRL B-209, B. licheniformis NRRL-B-1001, B. cereus NRRL B-3711, Staphylococcus aureus ATCC 33862, Pseudomonas aeruginosa ATCC 27853, Listeria inocua ATCC 33090, L. monocytogenes ATCC 7644 and Escherichia coli ATCC 25922 were examined. Total phenolic contents and antioxidant activities of Hypericum species changed depending on the habitat altitude. The antimicrobial activity of the ethanolic extracts was evaluated by minimal inhibitory concentrations (MIC) method. Flower and leaf extracts exhibited a broad antibacterial spectrum, but they were not effective against Escherichia coli (ATCC 25922). Phenolic contents of all Hypericum species and antimicrobial activity of only H. perforatum extracts were significantly increased by altitude rising, but no positive correlation was detected in antioxidant activity of extracts due to habitat altitude.

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Section: Antimicrobial Activities Of Extractsmentioning

confidence: 99%

Assessment of Phenolic Content, Antioxidant Properties and Antimicrobial Activity of Flower and Leaf Extracts from Some Hypericum Species Affected by Wild Habitat Altitude

Özdemir

Uzun

Gül

et al. 2020

Alınteri Zirai Bilimler Dergisi

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“…The remaining fragment consisting of C 14 H 13 NO 3 was elucidated as an indole derivative (partial unit C) by the interpretation of the 1 It was assumed that this indole derivative belonged to a small group of indolyl carboxylic acids, which were isolated from solvent extracts of indole-supplemented supernatants of Escherichia coli and Corynebacteria. 17 It presented a similar structure to 2-(2-tryptophanyl) lactic acid, obtained from the condensation reaction between tryptophan and pyruvic acid.…”

Section: Test For Cytotoxicity In Vitromentioning

confidence: 99%

“…Various biological activities of the genus, Macrolepiota, have been reported, including anti-microbial, antioxidant and enzyme (trypsin, monophenolase) activities. [1][2][3][4][5] However, few species have been studied with regard to their secondary metabolites. Only several free amino acids, fatty acids and sterols have been reported from Macrolepiota excoriata, Macrolepiota procera and Macrolepiota thacodes.…”

mentioning

confidence: 99%

Macrolepiotin, a new indole alkaloid from Macrolepiota neomastoidea

et al. 2009

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“…In this respect, medicinal plants are the most extensively studied. There are several studies investigating not only on the antimicrobial effects of plants (Dulger et al, 2005; Karga et al, 2020) but also on their effects on growth, immune response and antioxidant status of fish (Alagawany et al, 2020; Beltrán et al, 2020; Sönmez et al, 2019; Mehboob et al, 2017; Stratev et al, 2018; Yilmaz et al, 2020). Compared with chemical substances, medicinal plants have several advantages, such as low cost, none or limited side effects and low environmental impact (Bilen et al, 2020; Mohamed et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Effects of black mustard (Brassica nigra) seed oil on growth performance, digestive enzyme activities and immune responses in rainbow trout (Oncorhynchus mykiss)

Lakwani

Kenanoğlu

Taştan

et al. 2021

Aquaculture Research

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In the present study, effects of black mustard seed oil administration on growth performance, digestive enzyme activities and immune response in rainbow trout (Oncorhynchus mykiss) were evaluated. Rainbow trout were fed with three different doses of black mustard seed oil at the rate of 0.5% (BM0.5), 1% (BM1) and 2% (BM2) along with a control with no supplementation (0%) for 60 days. On 30th and 60th day of the study, digestive enzyme activities and immune responses were examined. At the end of the feeding trial, growth performance and survival against Aeromonas hydrophila infection were also recorded. Growth was positively affected in BM2 fish group, but it was not significantly different. Amylase and lipase levels were not altered compared with control at any sampling time. However, trypsin was increased in all experiential fish groups compared with control (p < 0.05). Pepsin level increased in BM2 fish group only on 60th day of the study (p < 0.05). Respiratory burst activity was significantly decreased in BM2 fish group at both the sampling times compared with control (p < 0.05). Potential killing activity was elevated in BM2 fish group on 30th day (p < 0.05). Lysozyme activity was enhanced in BM1 and BM2 fish groups on 30th day and BM0.5 and BM1 groups on 60th day compared with that of the control (p < 0.05). MPO increased significantly in BM1 and BM2 fish group on 30th day and in all experimental fish groups on 60th day of the study compared with that of the control. No changes in histology of different organs of fish groups were observed. The pro‐inflammatory cytokine, IL‐1β gene expression in intestine of all treated fish groups was significantly upregulated on 30th day. Similarly, transcription of IL‐8 and IL‐6, IL‐10 and IL‐12 cytokine genes was enhanced in intestine cells on 30th day. Similar enhanced levels of these genes were observed in head kidney cells of BM0.5 and BM1 fish groups. Survival against A. hydrophila infection increased insignificantly in all BM‐treated groups. All these results indicated that supplementation of BM could elevate intestinal immunity in rainbow trout, and the dietary incorporation of BM at 1%–2% level for 30 days is encouraged.

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Antimicrobial studies on three Hypericum species from Turkey

Cited by 12 publications

References 8 publications

Assessment of Phenolic Content, Antioxidant Properties and Antimicrobial Activity of Flower and Leaf Extracts from Some Hypericum Species Affected by Wild Habitat Altitude

Assessment of Phenolic Content, Antioxidant Properties and Antimicrobial Activity of Flower and Leaf Extracts from Some Hypericum Species Affected by Wild Habitat Altitude

Macrolepiotin, a new indole alkaloid from Macrolepiota neomastoidea

Effects of black mustard (Brassica nigra) seed oil on growth performance, digestive enzyme activities and immune responses in rainbow trout (Oncorhynchus mykiss)

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