Antimicrobial and synergistic activity of essential oils of Aloysia triphylla and Lippia alba against Aeromonas spp.

2017 ◽  
Vol 113 ◽  
pp. 29-33 ◽  
Author(s):  
Renilde Cordeiro de Souza ◽  
Mateus Matiuzzi da Costa ◽  
Bernardo Baldisserotto ◽  
Berta Maria Heinzmann ◽  
Denise Schmidt ◽  
...  
Keyword(s):  
Essential Oils ◽  
Synergistic Activity ◽  
Lippia Alba ◽  
Aloysia Triphylla

scholarly journals Stress-reducing and anesthetic effects of the essential oils of Aloysia triphylla and Lippia alba on Serrasalmus eigenmanni (Characiformes: Serrasalmidae)

2019 ◽  
Vol 17 (2) ◽  
Author(s):  
Ana Paula Gottlieb Almeida ◽  
Tiago Gabriel Correia ◽  
Berta Maria Heinzmann ◽  
Adalberto Luis Val ◽  
Bernardo Baldisserotto
Keyword(s):  
Essential Oils ◽  
Recovery Time ◽  
Prolonged Exposure ◽  
Ammonia Excretion ◽  
Free Water ◽  
Blood Parameters ◽  
Swimming Behavior ◽  
Amazonian Fish ◽  
Lippia Alba ◽  
Aloysia Triphylla

ABSTRACT Anesthetic effect of Aloysia triphylla and Lippia alba essential oils (EOs) in the Amazonian fish Serrasalmus eigenmanni was evaluated. The fish were placed in aquaria containing A. triphylla or L. alba EOs (25 to 200 µL L-1). Then, fish were transferred to aquaria containing EO-free water to evaluate their recovery time. In another experiment, fish were transferred to aquaria containing A. triphylla or L. alba EOs (3 to 10 µL L-1) and swimming behavior was analyzed for up to 240 min of exposure. Water samples were collected at 0 and 240 min and blood samples were collected at 240 min. Tested concentrations induced all stages of anesthesia, except 25 µL L-1 A. triphylla EO and 50 µL L-1 L. alba EO, which only induced sedation. Prolonged exposure to both EOs reduced swimming time compared to the control at all evaluated times. The fish exposed to 3 µL L-1 A. triphylla EO showed a lower net K+ efflux compared to ethanol-exposed fish; in those exposed to 5 µL L-1, ammonia excretion was reduced. The blood parameters did not show significant differences between treatments. In conclusion, both EOs can be used as anesthetics and sedatives for transport of S. eigenmanni.

Lippia alba and Aloysia triphylla essential oils are anxiolytic without inducing aversiveness in fish

Aquaculture ◽  
2018 ◽  
Vol 482 ◽  
pp. 49-56 ◽  
Author(s):  
Guerino Bandeira Junior ◽  
Murilo Sander de Abreu ◽  
João Gabriel dos Santos da Rosa ◽  
Carlos Garrido Pinheiro ◽  
Berta Maria Heinzmann ◽  
...  
Keyword(s):  
Essential Oils ◽  
Lippia Alba ◽  
Aloysia Triphylla

Anesthetic potential of the essential oils of Aloysia triphylla, Lippia sidoides and Mentha piperita for Colossoma macropomum

Aquaculture ◽  
2021 ◽  
Vol 534 ◽  
pp. 736275
Author(s):  
Franmir Rodrigues Brandão ◽  
Caio Francisco Santana Farias ◽  
Damy Caroline de Melo Souza ◽  
Maria Inês Braga de Oliveira ◽  
Lorena Vieira de Matos ◽  
...  
Keyword(s):  
Essential Oils ◽  
Mentha Piperita ◽  
Colossoma Macropomum ◽  
Lippia Sidoides ◽  
Aloysia Triphylla

scholarly journals Evidence for synergistic activity of plant-derived essential oils against fungal pathogens of food

2016 ◽  
Vol 53 ◽  
pp. 24-30 ◽  
Author(s):  
Farah Hossain ◽  
Peter Follett ◽  
Khang Dang Vu ◽  
Mehdi Harich ◽  
Stephane Salmieri ◽  
...  
Keyword(s):  
Essential Oils ◽  
Fungal Pathogens ◽  
Synergistic Activity

scholarly journals Immunomodulation and Antioxidant Activities as Possible Trypanocidal and Cardioprotective Mechanisms of Major Terpenes from Lippia alba Essential Oils in an Experimental Model of Chronic Chagas Disease

Antioxidants ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1851
Author(s):  
Denerieth Ximena Espinel-Mesa ◽  
Clara Isabel González Rugeles ◽  
Julio César Mantilla Hernández ◽  
Elena E. Stashenko ◽  
Carlos Andrés Villegas-Lanau ◽  
...  
Keyword(s):  
Essential Oils ◽  
Chagas Disease ◽  
Antioxidant Activities ◽  
Combined Therapy ◽  
Late Phase ◽  
Immunomodulatory Activity ◽  
Caryophyllene Oxide ◽  
Cardiac Damage ◽  
Lippia Alba ◽  
Chronic Chagas Disease

In the late phase of Trypanosoma cruzi infection, parasite persistence and an exaggerated immune response accompanied by oxidative stress play a crucial role in the genesis of Chronic Chagasic Cardiomyopathy (CCC). Current treatments (Benznidazole (BNZ) and Nifurtimox) can effect only the elimination of the parasite, but are ineffective for late stage treatment and for preventing heart damage and disease progression. In vivo trypanocidal and cardioprotective activity has been reported for Lippia alba essential oils (EOs), ascribed to their two major terpenes, limonene and caryophyllene oxide. To investigate the role of antioxidant and immunomodulatory mechanisms behind these properties, chronic-T. cruzi-infected rats were treated with oral synergistic mixtures of the aforementioned EOs. For this purpose, the EOs were optimized through limonene-enrichment fractioning and by the addition of exogenous caryophyllene oxide (LIMOX) and used alone or in combined therapy with subtherapeutic doses of BNZ (LIMOXBNZ). Clinical, toxicity, inflammatory, oxidative, and parasitological (qPCR) parameters were assessed in cardiac tissue. These therapies demonstrated meaningful antioxidant and immunomodulatory activity on markers involved in CCC pathogenesis (IFN-γ, TNF-α, IL-4, IL-10, and iNOS), which could explain their significant trypanocidal properties and their noteworthy role in preventing, and even reversing, the progression of cardiac damage in chronic Chagas disease.

scholarly journals Potentially Effective and Safe Anti-Helicobacter pylori Natural Products: Chemometric Study

2020 ◽  
Vol 71 (6) ◽  
pp. 267-273 ◽  
Author(s):  
Branislava D. Kocic ◽  
Dobrila M. Stankovic Dordevic ◽  
Marija V. Dimitrijevic ◽  
Marija S. Markovic ◽  
Dragoljub L. Miladinovic
Keyword(s):  
Helicobacter Pylori ◽  
Antibacterial Activity ◽  
Natural Products ◽  
Chemical Composition ◽  
Essential Oils ◽  
Principal Component ◽  
Synergistic Activity ◽  
Agglomerative Hierarchical Clustering ◽  
Naturally Occurring ◽  
H Pylori

The susceptibility of Helicobacter pylori to three essential oils (EOs), 12 naturally occurring monoterpene hydrocarbons, oxygenated and phenolic monoterpenes and three reference antibiotics were studied. Classification and comparison of essential oils and monoterpenes on the basis of their chemical composition and antibacterial activity were made by the utilization of principal component analyses (PCA) and agglomerative hierarchical clustering (AHC). The most abundant compound in the Thymus glabrescens Willd. and Thymus pulegioides L. EOs is geraniol (33.8% and 52.5%), while the main constituent in Satureja kitaibelii Wierzb. ex Heuff. EO is limonene (16,1%). The compound that was the most active against H. pylori was carvacrol. EOs of T. glabrescens and S. kitaibelii exhibit higher antibacterial ability in comparison with all monoterpenes, except carvacrol, probably based on the concept of synergistic activity of essential oil components. PCA separated essential oils based on chemical composition and explain 96.5% of the total variance in the first two principal components. Essential oils, phenolic monoterpenes and two antibiotics were classified in the same sub-cluster within AHC analyses. EOs of T. glabrescens and S. kitaibelii can be used to treat infections caused by H. pylori, as a potentially effective, cheap and safe natural products. Further research of antibacterial activity of selected monoterpenes, essential oils and standard antibiotic combinations, as well as clinical study are required.

Application of essential oils as natural cosmetic preservatives

2013 ◽  
Vol 59 (4) ◽  
pp. 142-156 ◽  
Author(s):  
Mariola Dreger ◽  
Karolina Wielgus
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Contact Allergy ◽  
Skin Irritation ◽  
Antimicrobial Properties ◽  
Antimicrobial Effect ◽  
Synergistic Activity ◽  
Minimum Concentration ◽  
Current State ◽  
Risk Benefit Assessment

Abstract Nowadays, safety of chemical preservatives has been questioned by a big number of consumers. Traditionally used preservatives often cause skin irritation and lead to allergenic reactions. Growing demands for more natural and preservative-free cosmetics promoted an idea of the replacement of synthetic preservatives with essential oils (EOs) of antimicrobial properties. The antimicrobial effect of essential oil depends on content, concentration and interactions between the main active compounds. Effective preservatives should be characterized by a broad spectrum of antimicrobial activity at a minimum concentration. Formulations containing both types of preservatives: essential oil and a synthetic one have been tested and proposed as a compromise that allows for reducing concentration of both components due to their synergistic activity. Although most essential oils are regarded as safe, some of them may cause risk of contact allergy or phototoxic reaction. A well balanced risk-benefit assessment of essential oils is one of the great challenges for scientists or health policy authorities. This paper presents current state of knowledge on essential oils focused on their antimicrobial properties, the assessment of their efficacy and safety as cosmetic preservatives.

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