A potential biopreservative: Chemical composition, antibacterial and hemolytic activities of leaves essential oil from Alpinia guinanensis

Deng, Jingdan; He, Bi; He, Daohang; Chen, Zhifen

doi:10.1016/j.indcrop.2016.09.004

Cited by 22 publications

(14 citation statements)

References 35 publications

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“…Cells were harvested by centrifugation for 15 min at 5000 r/min, and washed three times with 0.1 M phosphate buffer solution (PBS, PH 7.4). The treatment of bacterial cells and observations of SEM was followed by the reported study [26]. All the samples were coated with gold in a sputter coater, followed by microscopic examinations using a SEM system (S-3000H; Hitachi Ltd., Tokyo, Japan).…”

Section: Methodsmentioning

confidence: 99%

Chemical Composition and Antimicrobial Activities of Artemisia argyi Lévl. et Vant Essential Oils Extracted by Simultaneous Distillation-Extraction, Subcritical Extraction and Hydrodistillation

Guan

et al. 2019

Molecules

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Artemisia argyi Lévl. et Vant essential oil could be used as a good antimicrobial flavouring agent and applied in the food industry. In this study, three methods, including simultaneous distillation-extraction (SDE), subcritical extraction and hydrodistillation, were applied to extract A. argyi essential oil. Compared with subcritical extraction (1%) and hydrodistillation (0.5%), SDE gave a higher yield (1.2%). Components of the essential oils were analysed with gas chromatography-mass spectrometry (GC-MS), and the most abundant ingredients were caryophyllene oxide, neointermedeol, borneol, α-thujone and β-caryophyllene. These five components accounted for 82.93%, 40.90% and 40.33% for SDE, subcritical extraction, and hydrodistillation, respectively. Based on agar disc diffusion and minimum inhibitory concentration (MIC) assays, SDE oil showed a significant inhibitory effect towards Listeria monocytogenes, Escherichia coli, Proteus vulgaris, Salmonella enteritidis and Aspergillus niger. Furthermore, electron microscope observations (SEM) confirmed that SDE oil could obviously deform cell morphology and destroy the structure of cell walls. Performances showed that SDE was a promising process for extracting A. argyi essential oil with both high yield and antimicrobial activity.

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Section: Methodsmentioning

confidence: 99%

Chemical Composition and Antimicrobial Activities of Artemisia argyi Lévl. et Vant Essential Oils Extracted by Simultaneous Distillation-Extraction, Subcritical Extraction and Hydrodistillation

Guan

et al. 2019

Molecules

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“…Hemolytic activity was measured according to the methods described in Jingdan [15], with some modifications. Briefly, serial dilutions of SLPs were added to 200 uL of a 1% suspension of porcine RBCs in PBS, followed by incubation for 1 h at 37˚C.…”

Section: Hemolytic Assaymentioning

confidence: 99%

Synthetic surfactin analogues have improved anti-PEDV properties

et al. 2019

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Surfactin has antiviral activity against various enveloped viruses by inhibiting viral membrane fusion. However, the potential utility of surfactin as an antiviral drug is limited by its cytotoxicity. In this study, 10 surfactin analogues were obtained by chemical synthesis and evaluated to determine their anti-PEDV activities, hemolytic activities, and critical micelle concentrations. The main goal of our study was to develop a safer drug; a surfactin analogue with high anti-PEDV activity and low hemolytic activity. Compared with surfactin, one of the analogues we developed, SLP5, has lower hemolytic activity, with the same antiviral activity. The selectivity index of SLP5 is 52, while the SI for surfactin is 4, in other words, the safe and effective concentration range of SLP5 is 12 times greater than that of surfactin. Like surfactin, SLP5 has a direct antiviral effect on PEDV. Structurally, SLP5 is a linear lipopeptide with three carboxyl groups. Surfactin derivatives similar to SLP5 could be obtained by lactone bond hydrolyzation of surfactin, as well as total synthesis.

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“…Researchers have sought alternative approaches to inhibiting fungal growth, and among them, the use of essential oils (ABDULAZEEZ; ABDULLAHI; JAMES, 2015;DONSI e FERRARI, 2016;SALEM et al, 2016;DWIVEDY, et al, 2016;SANCHEZ-RUBIO et al, 2016;DAVARI e EZAZI, 2017;EL OUADI et al, 2017;XIE et al, 2017). In addition to fungus control, studies have shown that essential oils have insecticidal (DERMIRCI et al, 2016, POLATOĞLU et al, 2016, AMBROSIO et al, 2017, KIRAN et al, 2017 and antibacterial properties (DENG et al, 2016;LEU et al, 2017;LOU et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Antifungal activity of <i>Cymbopogon citratus</i> essential oil against <i>Aspergillus flavus</i>

Martinazzo

Oliveira

Teodoro

2019

CeN

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The search for alternatives for the control of microbiological contamination in foods has been the object of study in different scientific areas. This study aimed to evaluate the efficiency of lemon grass (Cymbopogon citratus) essential oil in controlling the growth of the fungus Aspergillus flavus in three types of analysis: first, by in vitro tests, in essential oil doses between 0.2 and 1.0 μL/ml; second, by serial microdilution to determine the minimum inhibitory concentration, in doses between 0.1 and 1.2 μL/mL; and third, by inhibition of fungal growth in corn kernels contaminated using essential oil doses of 0.4, 0.7, and 1.0 μL/mL, in the incubation times of 14, 28, and 42 days. The in vitro tests showed that the essential oil controlled the fungus from doses of 0.6 μL/mL, but the dose of 1.0 μL/mL controlled 100% growth until day eight of incubation, from which it decreased. The minimum inhibitory concentration for the microdilution analysis was 0.9 μL/mL. The evaluation of the corn kernels for all doses of essential oil and times tested showed 100% inhibition of the fungal growth.

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A potential biopreservative: Chemical composition, antibacterial and hemolytic activities of leaves essential oil from Alpinia guinanensis

Cited by 22 publications

References 35 publications

Chemical Composition and Antimicrobial Activities of Artemisia argyi Lévl. et Vant Essential Oils Extracted by Simultaneous Distillation-Extraction, Subcritical Extraction and Hydrodistillation

Chemical Composition and Antimicrobial Activities of Artemisia argyi Lévl. et Vant Essential Oils Extracted by Simultaneous Distillation-Extraction, Subcritical Extraction and Hydrodistillation

Synthetic surfactin analogues have improved anti-PEDV properties

Antifungal activity of <i>Cymbopogon citratus</i> essential oil against <i>Aspergillus flavus</i>

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