scholarly journals Potential food additive of Boswellia carterii essential oil encapsulated within gum arabic: a particle size distribution and zeta potential analysis

Food Research ◽  
2020 ◽  
Vol 4 (S2) ◽  
pp. 19-23
Author(s):  
M.S. Barre ◽  
F.B. Ali ◽  
M.E.S. Mirghani ◽  
N.F. Hazri ◽  
H. Anuar ◽  
...  
Keyword(s):  
Particle Size ◽  
Essential Oil ◽  
Zeta Potential ◽  
Gum Arabic ◽  
Food Additive ◽  
Acacia Senegal ◽  
Production Chain ◽  
Flight Mass Spectrometry ◽  
Product Gas ◽  
Boswellia Carterii

Boswellia carterii (BC) {Burseraceae family} essential oil (EO) were extracted by hydrodistillation process. Gum Arabic (GA) {Acacia senegal} polymer particles containing a BCEO were prepared by spray drying technique. The mean particle size and its distribution, as well as the zeta-potential of the microcapsules, were analyzed and found Z-Average 382±203nm, PDI 0.77±0.3, ZP-25±2.73mV, respectively. Product encapsulation efficiency (EE %) was found at 75±0.8%. The surface morphology of the particles was obtained by scanning electron microscope (SEM). Furthermore, particles moisture content was analyzed by the oven drying method. The efficiency of encapsulation (EE %) was estimated by specifying the content of essential oil in the product. Gas chromatography (GC) coupled with time-of-flight mass spectrometry (TOFMS) analysis of EO has been performed to determine the chemical compounds and their prevalence concentrations respectively. The composition of initial essential oil (added in the emulsion) and the encapsulated essential oil (extracted from spray dried powder) were analyzed and compared. The outcome of the research encourages the high potentiality and usefulness of the product in the food industries sector as a food additive agent, moreover, it suggests for further research to unravel potential implementation of BCEO microcapsules in the food production chain

Incorporation of micro/nanoparticles of PCL with essential oil of Cymbopogon nardus in bacterial cellulose

2018 ◽  
Vol 1 (2) ◽  
pp. 37
Author(s):  
Aline Krindges ◽  
Vanusca Dalosto Jahno ◽  
Fernando Morisso
Keyword(s):  
Particle Size ◽  
Particulate Matter ◽  
Essential Oil ◽  
Zeta Potential ◽  
Bacterial Cellulose ◽  
Culture Medium ◽  
Static Culture ◽  
Cymbopogon Nardus ◽  
Cellulose Membranes

Incorporation studies of particles in different substrates with herbal assets growing. The objective of this work was the preparation and characterization of micro/nanoparticles containing cymbopogon nardus essential oil; and the incorporation of them on bacterial cellulose. For the development of the membranes was used the static culture medium and for the preparation of micro/nanoparticles was used the nanoprecipitation methodology. The incorporation of micro/nanoparticles was performed on samples of bacterial cellulose in wet and dry form. For the characterization of micro/nanoparticles were carried out analysis of SEM, zeta potential and particle size. For the verification of the incorporation of particulate matter in cellulose, analyses were conducted of SEM and FTIR. The results showed that it is possible the production and incorporation of micro/nanoparticles containing essential oil in bacterial cellulose membranes in wet form with ethanol.

scholarly journals The protective and antioxidant effects of gum arabic: a review of recent evidence using the new PubMed system

2019 ◽  
Vol 7 (1) ◽  
pp. 356
Author(s):  
Mohammed A. Hassanien
Keyword(s):  
Tumor Imaging ◽  
Gum Arabic ◽  
Food Additive ◽  
Protective Effects ◽  
Acacia Senegal ◽  
Inflammatory Agent ◽  
Body Tissues ◽  
Life Enhancement ◽  
Antioxidant Effects ◽  
Analyze Data

Gum arabic (GA) is an exudate from acacia seyal and acacia senegal trees, which belong to the leguminosae family. There are many applications for GA, such as use as a food additive, shelf-life enhancement, microencapsulation, satiety induction, use as anti-obesity, antimicrobial, and anti-inflammatory agent, use as an anticoagulant, and applications in tumor imaging and nanotechnology. Little has been described about the mechanisms by which GA provides its protective effects, especially its role as an antioxidant, to different body tissues and organs. The aim of this study was to review the recent evidence of the antioxidant effects of GA on different body organs and tissues. The new PubMed system, which was recently released in October 2019, was used to collect and analyze data for this review. There were only seven articles in PubMed that described the antioxidant and protective effects of GA on different body organs and tissues in the period from January 2015 to November 2019; there be four articles from 2019. The results of these studies revealed the protective and antioxidant effects of GA on the liver, kidney and blood and cardiovascular system in experimentally induced injuries of these organs and tissues. Further studies are required to study the protective and antioxidant effects of GA on other body organs and tissues. The new PubMed system is a powerful and smart tool for searching and collecting data and for saving researchers time and effort; it is highly recommended to be widely used.

scholarly journals Polysaccharide-Based Multilayer Nano-Emulsions Loaded with Oregano Oil: Production, Characterization, and In Vitro Digestion Assessment

Nanomaterials ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 878
Author(s):  
Luz Espinosa-Sandoval ◽  
Claudia Ochoa-Martínez ◽  
Alfredo Ayala-Aponte ◽  
Lorenzo Pastrana ◽  
Catarina Gonçalves ◽  
...  
Keyword(s):  
Particle Size ◽  
Essential Oil ◽  
Zeta Potential ◽  
In Vitro Digestion ◽  
High Energy ◽  
Oregano Essential Oil ◽  
Emulsification Capacity ◽  
Octenyl Succinic Anhydride ◽  
Nano Emulsion

The food industry has increased its interest in using “consumer-friendly” and natural ingredients to produce food products. In the case of emulsifiers, one of the possibilities is to use biopolymers with emulsification capacity, such as octenyl succinic anhydride modified starch, which can be used in combination with other polysaccharides, such as chitosan and carboxymethylcellulose, in order to improve the capacity to protect bioactive compounds. In this work, multilayer nano-emulsion systems loaded with oregano essential oil were produced by high energy methods and characterized. The process optimization was carried out based on the evaluation of particle size, polydispersity index, and zeta potential. Optimal conditions were achieved for one-layer nano-emulsions resulting in particle size and zeta potential of 180 nm and −42 mV, two layers (after chitosan addition) at 226 nm and 35 mV, and three layers (after carboxymethylcellulose addition) of 265 nm and −1 mV, respectively. The encapsulation efficiency of oregano essential oil within nano-emulsions was 97.1%. Stability was evaluated up to 21 days at 4 and 20 °C. The three layers nano-emulsion demonstrated to be an efficient delivery system of oregano essential oil, making 40% of the initial oregano essential oil available versus 13% obtained for oregano essential oil in oil, after exposure to simulated digestive conditions.

scholarly journals Development of nano-emulsions based on Ayapana triplinervis essential oil for the control of Aedes aegypti larvae

PLoS ONE ◽  
2021 ◽  
Vol 16 (7) ◽  
pp. e0254225
Author(s):  
Alex Bruno Lobato Rodrigues ◽  
Rosany Lopes Martins ◽  
Érica de Menezes Rabelo ◽  
Rosana Tomazi ◽  
Lizandra Lima Santos ◽  
...  
Keyword(s):  
Particle Size ◽  
Essential Oil ◽  
Zeta Potential ◽  
Aedes Aegypti ◽  
Essential Oils ◽  
Dimethyl Ether ◽  
Inflammatory Cells ◽  
Polydispersity Index ◽  
Oral Toxicity ◽  
Nano Emulsion

Ayapana triplinervis is a plant species used in traditional medicine and in mystical-religious rituals by traditional communities in the Amazon. The aim of this study are to develop a nano-emulsion containing essential oil from A. triplinervis morphotypes, to evaluate larvicidal activity against Aedes aegypti and acute oral toxicity in Swiss albino mice (Mus musculus). The essential oils were extracted by steam dragging, identified by gas chromatography coupled to mass spectrometry, and nano-emulsions were prepared using the low energy method. Phytochemical analyses indicated the major compounds, expressed as area percentage, β-Caryophyllene (45.93%) and Thymohydroquinone Dimethyl Ether (32.93%) in morphotype A; and Thymohydroquinone Dimethyl Ether (84.53%) was found in morphotype B. Morphotype A essential oil nano-emulsion showed a particle size of 101.400 ± 0.971 nm (polydispersity index = 0.124 ± 0.009 and zeta potential = -19.300 ± 0.787 mV). Morphotype B essential oil nano-emulsion had a particle size of 104.567 ± 0.416 nm (polydispersity index = 0.168 ± 0.016 and zeta potential = -27.700 ± 1.307 mV). Histomorphological analyses showed the presence of inflammatory cells in the liver of animals treated with morphotype A essential oil nano-emulsion (MAEON) and morphotype B essential oil nano-emulsion (MBEON). Congestion and the presence of transudate with leukocyte infiltration in the lung of animals treated with MAEON were observed. The nano-emulsions containing essential oils of A. triplinervis morphotypes showed an effective nanobiotechnological product in the chemical control of A. aegypti larvae with minimal toxicological action for non-target mammals.

scholarly journals Synthesis, Controlled Release, and Stability on Storage of Chitosan-Thyme Essential Oil Nanocapsules for Food Applications

Gels ◽  
2021 ◽  
Vol 7 (4) ◽  
pp. 212
Author(s):  
Ricardo M. González-Reza ◽  
Humberto Hernández-Sánchez ◽  
David Quintanar-Guerrero ◽  
Liliana Alamilla-Beltrán ◽  
Yair Cruz-Narváez ◽  
...  
Keyword(s):  
Particle Size ◽  
Infrared Spectroscopy ◽  
Essential Oil ◽  
Zeta Potential ◽  
Antioxidant Capacity ◽  
Physical Stability ◽  
Release Kinetic ◽  
Scanning Calorimetry ◽  
Thyme Oil ◽  
Thyme Essential Oil

The nanoencapsulation of thyme essential oil has been greatly important in food science, given its remarkable antioxidant and antimicrobial capacity. However, its analysis in storage has not been established in terms of physical stability, antioxidant capacity, and release studies. In this paper, chitosan-thyme oil nanocapsules were prepared by the ionic gelation method. These were characterized for differential calorimetry, release kinetic, and infrared spectroscopy. The chitosan-thyme oil nanocapsules were stored at 4 and 25 °C for 5 weeks, the changes in particle size, zeta potential, stability (diffuse reflectance), and antioxidant capacity were analyzed and associated with nanocapsules’ functionality. The results show that the storage time and temperature significantly modify the particle size (keeping the nano-size throughout the storage), the release of the bioactive was Fickian with t0.193 according to Korsmery & Peppas and best described by Higuchi model associated with changes in the zeta potential from 8 mV to −11 mV at 4 °C. The differential scanning calorimetry and infrared spectroscopy results confirm the good integration of the components. The antioxidant capacity revealed a direct relationship with residual oil concentration with a decrease in the ABTS test of 15% at 4 °C and 37% at 25 °C. The residual bioactive content was 77% at 4 °C and 62% at 25 °C, confirming nanoencapsulation effectiveness. The present investigation provides helpful information so that these systems can be applied in food conservation.

Zingiber officinale essential oil-loaded chitosan-tripolyphosphate nanoparticles: Fabrication, characterization and in-vitro antioxidant and antibacterial activities

2021 ◽  
pp. 108201322110409
Author(s):  
Mojtaba Yousefi ◽  
Vahid Ghasemzadeh Mohammadi ◽  
Mahdi Shadnoush ◽  
Nasim Khorshidian ◽  
Amir M. Mortazavian
Keyword(s):  
Particle Size ◽  
Essential Oil ◽  
Zeta Potential ◽  
Chitosan Nanoparticles ◽  
In Vitro Release ◽  
Zingiber Officinale ◽  
Resistant Bacteria ◽  
Scanning Electron Micrographs ◽  
Inhibition Zones

Zingiber officinale essential oil (ZEO) was encapsulated in chitosan nanoparticles at different concentrations using the emulsion-ionic gelation technique and its antioxidant and antibacterial effects were investigated. The results indicated that ZEO level had a significant effect on encapsulation efficiency (EE), loading capacity (LC), particle size and zeta potential. The value obtained for EE, LC, mean particle size and zeta potential were 49.11%–68.32%, 21.16%–27.54%, 198.13–318.26 nm and +21.31–43.57 mV, respectively. According to scanning electron micrographs, the nanoparticles had a spherical shape with some invaginations due to the drying process. The presence of essential oil within the chitosan nanoparticles was confirmed by Fourier transform infrared (FTIR) spectroscopy. In vitro release studies in simulated gastrointestinal fluid (SGF) and simulated intestinal fluid (SIF) indicated an initial burst effect followed by slow release with higher release rate in acidic medium of SGF. ZEO-loaded nanoparticles showed DPPH radical scavenging activity of 20%–61% which increased by raising the ZEO level. Moreover, results of antibacterial activity revealed that Staphylococcus aureus (with inhibition zones of 19–35.19 mm2) and Salmonella typhimurium (with inhibition zones of 9.78–17.48 mm2) were the most sensitive and resistant bacteria to ZEO, respectively. Overall, chitosan nanoparticles can be considered as suitable vehicles for ZEO and improve its stability and solubility.

scholarly journals Influence of Stabilizing and Encapsulating Polymers on Antioxidant Capacity, Stability, and Kinetic Release of Thyme Essential Oil Nanocapsules

Foods ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 1884
Author(s):  
Ricardo M. González-Reza ◽  
Humberto Hernández-Sánchez ◽  
Maria L. Zambrano-Zaragoza ◽  
Gustavo F. Gutiérrez-López ◽  
Alicia Del-Real ◽  
...  
Keyword(s):  
Particle Size ◽  
Essential Oil ◽  
Zeta Potential ◽  
Antioxidant Capacity ◽  
Infrared Spectra ◽  
Diffuse Reflectance ◽  
Release Kinetics ◽  
Strong Dependence ◽  
Thyme Essential Oil ◽  
Polymeric Nanocapsules

The release kinetics, stability, and antioxidant capacity of thyme essential oil polymeric nanocapsules as a function of encapsulating (poly-ε-caprolactone and ethylcellulose) and stabilizing (polyvinyl alcohol and Pluronic® F-127) polymers were established. Samples were evaluated in terms of particle size, zeta potential, release kinetics, calorimetry, infrared spectra, antioxidant capacity, and diffuse reflectance. The particle size obtained was below 500 nm in all cases, ensuring nanometric size. Zeta potential as a function of the stabilizing polymer. Encapsulation efficiency was higher in the samples that contained ethyl cellulose (around 70%), associated with its affinity for the molecules contained in the essential oil. Differential scanning calorimetry revealed a strong dependence on the encapsulating polymers as a function of the melting temperatures obtained. Infrared spectra confirmed that the polymeric nanocapsules had the typical bands of the aromatic groups of thyme essential oil. The antioxidant capacity evaluated is a function exclusively of the active content in the nucleolus of the nanocapsules. Nanoencapsulation was not a significant factor. Diffuse reflectance revealed high physical stability of the dispersions related directly to the particle size and zeta potential obtained (either by ionic or steric effect). These findings confirm favorable characteristics that allow proposing these systems for potential applications in food processing and preservation.

Evaluation of Physical Properties and Antibacterial Activity of Bioactive Compounds-Loaded Chitosan Nanoparticles

2018 ◽  
Vol 936 ◽  
pp. 3-7 ◽  
Author(s):  
Zormy Nacary Correa-Pacheco ◽  
Silvia Bautista-Baños ◽  
Mónica Hernández-López ◽  
María Luisa Corona-Rangel
Keyword(s):  
Particle Size ◽  
Antibacterial Activity ◽  
Essential Oil ◽  
Zeta Potential ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Bioactive Compounds ◽  
Chitosan Nanoparticles ◽  
Ethanol Extract ◽  
Byrsonima Crassifolia

Bioactive compounds such as essential oils (EO), botanical extracts and natural resins are well known to have beneficial properties. Among these properties are their antibacterial activity. A disadvantage of these compounds is that they are volatile. Therefore, encapsulation is a good way to overcome this problem. In this study, the morphology, particle size distribution, Zeta potential and microbiological activity of chitosan nanoparticles incorporated with three different bioactive compounds having antimicrobial properties: ethanol extract of propolis, thyme essential oil and ethanol extract of Byrsonima crassifolia (L.) Kunth were evaluated. Nanoparticles were synthesized using the nanoprecipitation method. The morphology was observed using transmission electron microscopy (TEM). Also, particle size distribution and Zeta potential were measured. Results show spherical in shape nanoparticles. Thyme essential oil-loaded chitosan nanoparticles (TEO-CSNPs) showed the smallest particle size and highest stability as assessed by Zeta potential measurement, followed in stability by ethanol extract of propolis-loaded chitosan nanoparticles (EEP-CSNPs), ethanol extract of Byrsonima crassifolia (L.) Kunth (EEBC-CSNPs) and finally by chitosan nanoparticles (CSNPs). The antibacterial activity of the bioactive compounds-loaded chitosan nanoparticles was evaluated against Staphylococcus aureus. The highest antibacterial activity was observed for TEO-CSNPs with an inhibition halo (IH) value of 10.54±0.78 mm, followed by EEP-CSNPs (8.10±1.19 mm). EEBC-CSNPs and CSNPs did not show zone of inhibition. Bioactive compounds-loaded chitosan nanoparticles represents a good alternative for bacterial control of food borne pathogens in applications for fruits and vegetables conservation.

scholarly journals Self Nano-Emulsifying Drug Delivery System (SNEDDS) of Curcuma Mangga Val. Essential Oil and The Stability Study

2020 ◽  
pp. 238-243
Author(s):  
Retno Sunarminingsih Sudibyo ◽  
Lukman Mahdi ◽  
Ronny Martien
Keyword(s):  
Drug Delivery ◽  
Particle Size ◽  
Essential Oil ◽  
Zeta Potential ◽  
Drug Delivery System ◽  
Droplet Size ◽  
Delivery System ◽  
Stability Study ◽  
Freeze Thaw ◽  
Lattice Design

Essential oil of Curcuma mangga Val. has been reported to have cytotoxic effect against cancer cell lines. But this oil is unstable in dispensing so that a self nano-emulsifying drug delivery system (SNEDDS) of the oil was conducted to solve the problem and improve its potency. In the study, optimization, verification, characterization, and stability test of the SNEDDS formula were carried out respectively by simplex lattice design (SLD) on Design Expert ver. 10 software, droplet size and Zeta potential determinations using particle size analyzer (PSA) instrument, as well as heating-cooling and freeze-thaw methods. The best SNEDDS formula resulted was Miglyol : Tween 80 : PEG 400 = 16.034% : 68.380% : 15.586%; with transmittance of 84.47 + 1.05%, droplet size of 15.75 nm, zeta potential of -8.54 mV, polydispersity index (PDI) of 0.188, emulsifying time of 49.67 + 1.7 seconds in distilled water, 24.33 + 4.19 seconds in artificial gastric fluid and 21.33 + 2.87 seconds in artificial intestine fluid. After a freeze-thaw test there was no change on the emulsion’s clarity, color, smell, as well as no separation, which means that the formula was stable thermodynamically. The optimum SNEDDS formula resulted has small particle size, better emulsifying time in artificial gastric and intestine fluids, as well as better thermodynamic stability, which in turn will improve the cytotoxic activity of the Curcuma mangga Val. rhizome oil toward cancer cells.

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