Comparative Evaluation of Piper nigrum, Rosmarinus officinalis, Cymbopogon citratus and Juniperus communis L. Essential Oils of Different Origin as Functional Antimicrobials in Foods

Leja, Katarzyna; Majcher, Małgorzata; Juzwa, Wojciech; Czaczyk, Katarzyna; Komosa, Marcin

doi:10.3390/foods9020141

Cited by 10 publications

(6 citation statements)

References 35 publications

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“…What is more, plant extracts are widely investigated as preservatives in foods because of their ability to inhibit bacteria growth [53,54]. Some authors reported bacteriostatic and antifungal properties depending on essential oils preparation [55][56][57]. Furthermore, Smułek et al [22] investigated the toxicity of Saponaria extract and concluded that the extract was toxic against Achromobacter sp.…”

Section: Emulsions' Biological Activitymentioning

confidence: 99%

Plant Extracts Containing Saponins Affects the Stability and Biological Activity of Hempseed Oil Emulsion System

et al. 2020

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In this study, two saponins-rich plant extracts, viz. Saponaria officinalis and Quillaja saponaria, were used as surfactants in an oil-in-water (O/W) emulsion based on hempseed oil (HSO). This study focused on a low oil phase content of 2% v/v HSO to investigate stable emulsion systems under minimum oil phase conditions. Emulsion stability was characterized by the emulsification index (EI), centrifugation tests, droplet size distribution as well as microscopic imaging. The smallest droplets recorded by dynamic light scattering (droplets size v. number), one day after the preparation of the emulsion, were around 50–120 nm depending the on use of Saponaria and Quillaja as a surfactant and corresponding to critical micelle concentration (CMC) in the range 0–2 g/L. The surface and interfacial tension of the emulsion components were studied as well. The effect of emulsions on environmental bacteria strains was also investigated. It was observed that emulsions with Saponaria officinalis extract exhibited slight toxic activity (the cell metabolic activity reduced to 80%), in contrast to Quillaja emulsion, which induced Pseudomonas fluorescens ATCC 17400 growth. The highest-stability samples were those with doubled CMC concentration. The presented results demonstrate a possible use of oil emulsions based on plant extract rich in saponins for the food industry, biomedical and cosmetics applications, and nanoemulsion preparations.

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Section: Emulsions' Biological Activitymentioning

confidence: 99%

Plant Extracts Containing Saponins Affects the Stability and Biological Activity of Hempseed Oil Emulsion System

et al. 2020

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“…In addition to piperine, many other amides have been isolated from the Piper species [13,14]. Studies on the pharmacological effects of piperine have shown that it has antimicrobial, anticancer, anti-inflammatory, insecticidal, analgesic, anticonvulsant, antiulcerogenic, gastroprotective, antioxidant, and antiseptic properties; piperine also makes other bioactive compounds more absorbable and bioavailable [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Antimicrobial Activity and Cytotoxicity Effects of Extracts of Piper nigrum L. and Piperine

et al. 2022

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P. nigrum L. extracts and the piperine alkaloid have important antimicrobial, anti-inflammatory, and antioxidant properties. Therefore, in this study, we evaluated the antimicrobial activity and cytotoxicity of P. nigrum L. extracts and piperine, a compound isolated from the extracts of P. nigrum L. Extracts obtained via maceration, soxhlet, and purification steps, in addition to isolated piperine, were used in this study. Spectroscopic methods, such as nuclear magnetic resonance, scanning electron microscopy, X-ray diffraction, thermogravimetry, and differential scanning calorimetry, were used to characterize piperine. In the microbiological analyses, the extract obtained via maceration-derived sample showed high efficiency in inhibiting Salmonella spp. (MIC < 100 μg/mL). The extract obtained via a soxhlet-derived sample showed promising inhibitory activity against almost all microorganisms, with negligible inhibition of Pseudomonas aeruginosa. Favorable inhibition coefficients were also observed against Staphylococcus aureus and Salmonella spp. (MIC < 100 μg/mL) for the extract obtained via purification of the steps-derived sample. Piperine showed an excellent inhibition coefficient against most microorganisms, with inactivity only observed against P. aeruginosa. Cytotoxicity evaluation assays in cancer cell lines revealed that piperine exhibited inhibitory potential on all tested tumor cell lines, causing a decrease in cell viability and achieving an IC50 of less than 30 μg/mL. The analyzed extracts from P. nigrum L. seeds showed cytotoxic activity against tumor and non-tumor cell lines.

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“…The inhibition zone assay was determined by the filter paper diffusion method (Bendif et al, 2017; Leja et al, 2020). The sample solution (5 mg mL −1 ) was prepared, and the anhydrous ethanol and 40 μg mL −1 levofloxacin were used as negative and positive controls, respectively.…”

Section: Methodsmentioning

confidence: 99%

Melatonin enhances biomass, phenolic accumulation, and bioactivities of rosemary (Rosmarinus officinalis) in vitro shoots under UV‐B stress

Zhao

Yun

et al. 2023

Physiologia Plantarum

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Melatonin is a stress‐related hormone that plays a critical role in triggering the plant defence system and regulating secondary metabolism when plants are exposed to stress. To explore the potential roles of melatonin in response to Ultraviolet‐B (UV‐B) radiation, we examined the effects of exogenous melatonin on rosemary in vitro shoots under UV‐B stress. The application of melatonin (50 μM) alleviated the adverse effects of UV‐B stress on the biomass, photosynthetic pigment contents, and membrane lipids of the rosemary in vitro shoots. Melatonin significantly increased superoxide dismutase (1.15.1.1, SOD), peroxidase (1.11.1.7, POD), and catalase (1.11.1.6, CAT) activities by 62%, 99%, and 53%, respectively. The contents of total phenols, rosmarinic acid, and carnosic acid increased under UV‐B stress, and they further increased by the melatonin treatment by 41%, 68%, and 67%, respectively, compared with the control group. Under UV‐B stress, the increased total phenol content in melatonin‐pretreated plants could be attributed to the activation of phenylalanine ammonia‐lyase (4.3.1.5, PAL) and tyrosine aminotransferase (2.6.1.5, TAT). In addition, melatonin enhanced the antioxidant and antibacterial activities of the rosemary in vitro shoots under UV‐B stress. These results suggest that melatonin can alleviate the damage caused by UV‐B stress and also enhance the secondary metabolism and bioactivity of rosemary in vitro shoots.

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Comparative Evaluation of Piper nigrum, Rosmarinus officinalis, Cymbopogon citratus and Juniperus communis L. Essential Oils of Different Origin as Functional Antimicrobials in Foods

Cited by 10 publications

References 35 publications

Plant Extracts Containing Saponins Affects the Stability and Biological Activity of Hempseed Oil Emulsion System

Plant Extracts Containing Saponins Affects the Stability and Biological Activity of Hempseed Oil Emulsion System

Evaluation of Antimicrobial Activity and Cytotoxicity Effects of Extracts of Piper nigrum L. and Piperine

Melatonin enhances biomass, phenolic accumulation, and bioactivities of rosemary (Rosmarinus officinalis) in vitro shoots under UV‐B stress

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