scholarly journals Synergistic effect between silver nanoparticles produced by green synthesis and lemongrass essential oil (Cymbopogon citratus (DC)) against Candida albicans

2018 ◽  
Author(s):  
E. A Menezes
Keyword(s):  
Silver Nanoparticles ◽  
Candida Albicans ◽  
Essential Oil ◽  
Synergistic Effect ◽  
Green Synthesis ◽  
Cymbopogon Citratus ◽  
Lemongrass Essential Oil

scholarly journals Microencapsulation of Lemongrass (Cymbopogon citratus) Essential Oil Via Spray Drying: Effects of Feed Emulsion Parameters

Processes ◽  
2020 ◽  
Vol 8 (1) ◽  
pp. 40 ◽  
Author(s):  
Nguyen Phu Thuong Nhan ◽  
Vo Tan Thanh ◽  
Mai Huynh Cang ◽  
Tri Duc Lam ◽  
Nguyen Cam Huong ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Spray Drying ◽  
Gum Arabic ◽  
Core Material ◽  
Wall Material ◽  
Cymbopogon Citratus ◽  
Encapsulation Process ◽  
Wall Materials ◽  
Lemongrass Essential Oil

The purpose of this study was to attempt the encapsulation of lemongrass (Cymbopogon citratus) essential oil utilizing spray drying technique. An array of process parameters including concentration of wall (15–30%), type of wall materials (maltodextrin, maltodextrin and gum Arabic mixture), and concentration of essential oil (0.5–2.0%) were thoroughly investigated. The results show that the use of sole maltodextrin as encapsulant gave microcapsules characteristics comparable to that of powder produced using maltodextrin and gum Arabic mixture. The encapsulation process that was performed with maltodextrin at the concentration of 30% as wall material and lemongrass essential oil at the concentration of 1.5% as core material showed highest drying yield (84.49%), microencapsulation yield (89.31%) and microencapsulation efficiency (84.75%). Encapsulated essential oils retained most of their major constituents in comparison with the bare essential oils without any significant compromise in product quality.

Preparation and Characterization of Naturally Scented Candles Using the Lemongrass (Cymbopogon citratus) Essential Oil

2020 ◽  
Vol 977 ◽  
pp. 212-217
Author(s):  
Hoang Danh Pham ◽  
Tri Nhut Pham ◽  
Do Thi Kim Nga ◽  
Ngan Thi Thu Nhung ◽  
Tri Duc Lam ◽  
...  
Keyword(s):  
Citric Acid ◽  
Essential Oil ◽  
Essential Oils ◽  
Health Effects ◽  
Low Cost ◽  
Cymbopogon Citratus ◽  
Natural Sources ◽  
The Common ◽  
Lemongrass Essential Oil

At present, there are many different forms of relaxation and aromatic candles are one of the common forms. Scented candles not only provide background lighting but also help promoting a feeling of wellness. This study attempts to produce scented candles from natural sources such as soy wax, beeswax, and natural essential oils to bring the most practical benefits to the users. The produced candle should be long lasting, low cost and causes no health effects. The composition of scented candles included 60% beeswax, 30% soy wax, 8% lemongrass essential oil, 1% citric acid, and 1% ethanol.

scholarly journals Cymbopogon citratus essential oil-induced ultrastructural & morphological changes in the midgut, cuticle & Haller’s organ of the tick Haemaphysalis longicornis (Acari: Ixodidae)

2020 ◽  
Vol 25 (11) ◽  
pp. 2047-2062
Author(s):  
Desmond O. Agwunobi ◽  
Yuhong Hu ◽  
Zhijun Yu ◽  
Jingze Liu
Keyword(s):  
Essential Oil ◽  
Morphological Changes ◽  
Immersion Test ◽  
Tick Control ◽  
Haemaphysalis Longicornis ◽  
Cymbopogon Citratus ◽  
Promising Alternative ◽  
Cytoplasmic Vacuolization ◽  
Haller's Organ ◽  
Lemongrass Essential Oil

Haemaphysalis longicornis Neumann is a widely distributed species known for its capacity to transmit pathogens of medical, public health, and veterinary importance. Due to the environmental contamination caused by synthetic acaricides, plant essential oils have emerged as a promising alternative to manage tick infestation. This study evaluated the ultrastructural and morphological changes induced by Cymbopogon citratus Stapf (lemongrass) essential oil on adult H. longicornis tick. The concentrations of lemongrass essential oil used for the treatment via the adult immersion test were from 10 to 40 mg/mL. The most significant alterations 24 h post-exposure include the proliferation of lysosomes, reduction in the number of the rough endoplasmic reticulum, disorganization of the microvilli, the disappearance of lipid droplets and hematin granules, and cytoplasmic vacuolization (midgut); a thinner endocuticle and epicuticle, the deletion of the subdivision’s demarcation of the procuticle, disfiguration of the lamellar arrangements of the exocuticle, and cytoplasmic vacuolization of the epithelial cells (integument); cracks on the sensilla sockets, the detachment of one or two sensilla in the anterior pit, and partial disfiguration of part of the slit’s edge (Haller’s organ). These results reflect the acaricidal properties of the essential oil and could be an alternative means of tick control.

Green Synthesis of Silver Nanoparticles Using Aqueous Extract of Lamium album and their Antifungal Properties

2021 ◽  
Vol 67 ◽  
pp. 55-67
Author(s):  
Zahra Zareshahrabadi ◽  
Fatemeh Karami ◽  
Saeed Taghizadeh ◽  
Aida Iraji ◽  
Ali Mohammad Amani ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Candida Albicans ◽  
Green Synthesis ◽  
Aqueous Extract ◽  
Inhibitory Activity ◽  
Biofilm Formation ◽  
Dependent Manner ◽  
Face Centered Cubic ◽  
Antifungal Activities ◽  
Lamium Album

Biosynthesis of novel metal nanoparticles (especially silver) using plant derivatives has received increasing attention due to their eco-friendly and potential applications in pharmaceutical and medical fields. In this study, silver nanoparticles were synthesized by using aqueous extract of Lamium album as a biocompatible and green method. The synthesized silver nanoparticles were characterized by Ultraviolet-visible (UV–vis) Spectroscopy, Transmission Electron Microscopy (TEM), X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FT-IR), and Dynamic Light Scattering (DLS) Analysis. Inhibitory activity of silver nanoparticles on fungal growth was evaluated and inhibition of Candida albicans biofilms formation was measured using XTT assay. Their antioxidant and cytotoxic properties have also been evaluated.The synthesized AgNPs were mostly spherical in shape with an average size of nearly 25.2 nm. The AgNPs were crystalline in nature and have a face-centered cubic structure. The results of zeta potential value for AgNPs were −30 mV indicating the normal stability of the synthesized nanoparticles in colloidal systems. The result of antifungal activities showed that the biosynthesized silver nanoparticles had inhibitory activity against Candida albicans, C. tropicalis, C. krusei, C. glabrata, C. dubliniensis, C. parapsilosis, Cryptococcus neoformance, Aspergillus flavus, A. clavatus, Aspergillus fumigatus, Pseudallescheria boydii and Exophiala dermatitidis. The nanoparticles inhibited the Candida albicans biofilm formation in a dose-dependent manner. The cytotoxicity study of silver nanoparticles was revealed IC50 of 110.75 μg/mL against liver cell lines. The recognized bioactivity confirmed by the synthesized silver nanoparticles directs towards the potential for using as an antioxidant, antifungal, and cytotoxic agent.Keywords: Green synthesis, Antifungal activities, Silver nanoparticles, Lamium album, Biofilm formation.

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