Antimicrobial properties and sensorial acceptability of edible antimicrobial films from seaweed (Kappaphycus alvarezii) and cinnamon (Cinnamomum zeylanicum) essential oil

Food Research ◽  
2021 ◽  
Vol 5 (4) ◽  
pp. 266-272
Author(s):  
W.M. Siah ◽  
A. Aminah ◽  
A. Ishak
Keyword(s):  
Antimicrobial Activity ◽  
Essential Oil ◽  
Essential Oils ◽  
Kappaphycus Alvarezii ◽  
Antimicrobial Properties ◽  
Overall Acceptability ◽  
Packaged Foods ◽  
Antimicrobial Films ◽  
Cinnamon Essential Oil ◽  
Hedonic Scale

Packaging of foods by using edible antimicrobial films (EAF) incorporated with essential oils is able to reduce the spoilage of food due to surface contamination. Essential oils are highly volatile and have strong aromas that can affect their function and consumer acceptance. This paper discussed the effect of cinnamon essential oil (CEO) concentrations on the antimicrobial activity and sensory acceptability of EAF produced from seaweed through a casting method. The CEO was added into the formulations at 10, 20, 30, 40 and 50 g/kg levels. The EAF showed antimicrobial activity against the tested microorganisms with the highest antimicrobial activity at the concentration of 40 g/kg CEO. However, based on the results obtained from a sensory evaluation using a 7-points hedonic scale, the overall acceptability was 3.23 which was lower than the minimum acceptability score of 4. Hence, the highest acceptable level of CEO in the EAF was 30 g/ kg. It is recommended that the CEO of 30 g/kg could be incorporated into edible film and act as an alternative method to extend the shelf life of packaged foods.

Physicochemical and Antimicrobial Properties of Hydroxypropyl Methylcellulose-Cinnamon Essential Oil Emulsion: Effects of Micro- and Nanodroplets

2019 ◽  
Vol 15 (9) ◽  
Author(s):  
Shuzhi Li ◽  
Jingyang Zhou ◽  
Yanan Wang ◽  
Anguo Teng ◽  
Kai Zhang ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Food Processing ◽  
Antibacterial Agent ◽  
Inhibitory Concentration ◽  
Hydroxypropyl Methylcellulose ◽  
Antimicrobial Properties ◽  
Oil Emulsion ◽  
Oil Emulsions ◽  
Cinnamon Essential Oil

AbstractEmulsion is an efficient encapsulation tool for enhancing the functional properties of essential oils (EOs). Herein, two two-dimensional cinnamon essential oil emulsions (from micro- to nanoscales) were emulsified by hydroxypropyl methylcellulose, and their antimicrobial and physicochemical properties were investigated. For the models of Escherichia coli CGMCC 1.0907, Salmonella enterica subsp. Enterica serovar Typhi (CICC 10867), Staphylococcus aureus CGMCC 1.0089, and Listeria monocytogene CGMCC 1.9144, the minimum inhibitory concentration (MIC) of the nanoemulsion was 31.25 μL/mL compared to that of the microemulsion (62.5–125 μL/mL) and pure oil (125–250 μL/mL), indicating the superiority of nanoemulsion as an antibacterial agent. The results showed that the highest activity was seen in the gram-positive L. monocytogenes whereas the lowest was in the gram-negative S. enterica. The identified properties of HPMC (hydroxypropyl methylcellulose) provide the potential for emulsifying and enhancing essential oils in light industries, especially for food processing.

scholarly journals Essential oils of Thymus pulegioides and Thymus glabrescens from Romania: Chemical composition and antimicrobial activity

2010 ◽  
Vol 75 (1) ◽  
pp. 27-34 ◽  
Author(s):  
Mariana Pavel ◽  
Mihailo Ristic ◽  
Tatjana Stevic
Keyword(s):  
Antimicrobial Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Micrococcus Luteus ◽  
Antimicrobial Properties ◽  
Herbal Drug ◽  
Qualitative And Quantitative Analysis ◽  
Gram Positive Bacteria ◽  
Main Components

The aim of this work was to analyse the chemical composition and antimicrobial properties of essential oils isolated from two wild-growing species of thyme (Thymus pulegioides L. and T. glabrescens Willd.) originating from different locations in Romania. The yield of essential oil was determined according to European Pharmacopoeia standards. Qualitative and quantitative analysis of the oils was performed using GC and GC/MS. The antimicrobial activity was tested by the microdilution technique against Gram-negative and Gram-positive bacteria (Escherichia coli, Salmonella typhimurium, S. enteritisdis, Enterobacter cloacae, Pseudomonas aeruginosa, Proteus mirabilis, Staphylococcus aureus, S. epidermidis, Streptococcus faecalis, Bacillus subtilis, Micrococcus luteus, M. flavus and Listeria monocytogenes) and human pathogen yeast Candida albicans. The essential oil of Thymus pulegioides was obtained in a yield of 0.7-1 % (v/d.w. herbal drug) and the main components were carvacrol (50.5-62.6 %), ?-terpinene (9.8-9.9 %) and p-cymene (5.8-7.1 %). The essential oil of T. glabrescens was obtained in a yield of 0.7 (v/d.w. herbal drug) and the main components were geraniol (55.5 %), neryl acetate (11.1 %) and ?-bisabolene (6.7 %). The essential oils inhibited microbial growth at concentrations of 10.8-27 ?l/ml.

Use of Microcapsules of Oregano Essential Oil to Extend the Shelf Life of Strawberries

2012 ◽  
Vol 262 ◽  
pp. 422-425
Author(s):  
Guang Fa Liu ◽  
Jian Qing Wang ◽  
Ya Zhu Zhao
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Shelf Life ◽  
Antimicrobial Properties ◽  
Tween 80 ◽  
Oregano Essential Oil ◽  
Plant Essential Oils ◽  
Uv Visible ◽  
Bioactive Agents ◽  
Cinnamon Essential Oil

This work explored the use of microcapsules of natural plant essential oils to increase the shelf life of strawberries during storage. First, antimicrobial tests were performed with selected essential oils to evaluate their antimicrobial capacities against moulds isolated from strawberries. Oregano essential oil was found as strong bioactive agents against moulds from strawberries, whereas cinnamon essential oil had lower antimicrobial properties. Then, microcapsules of oregano essential oil were prepared with oregano essential oil, sodium alginate, Tween 80, and monoglycerides, and their internal structure were observed by SEM, and their oils contain were tested by UV-visible spectrophotometer inspection. Different amounts of microcapsules of oregano essential oil were wrapped into small polypropylene non-woven package, and they were pasted on the internal of corrugated boxes. Finally, freshly picked strawberries were put into corrugated boxes and stored at room temperature (from 16°C to 18°C) for 4 days. The results showed that the use of microcapsules of oregano essential oil could effectively inhibit the decay of strawberries, maintain their quality, and extend their shelf life. Strawberries presented the best quality when the amount of microcapsules arrived at 0.828 grams per 500 grams of strawberries.

scholarly journals Antimicrobial Activity of Selected Essential Oils against Selected Pathogenic Bacteria: In Vitro Study

Antibiotics ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 546
Author(s):  
Nikola Puvača ◽  
Jovana Milenković ◽  
Tamara Galonja Galonja Coghill ◽  
Vojislava Bursić ◽  
Aleksandra Petrović ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Antimicrobial Activity ◽  
Essential Oil ◽  
Essential Oils ◽  
Pathogenic Bacteria ◽  
Antimicrobial Properties ◽  
In Vitro Study ◽  
Tea Tree ◽  
E Coli

The worldwide problem of infectious diseases has appeared in recent years, and antimicrobial agents are crucial in reducing disease emergence. Nevertheless, the development and distribution of multidrug-resistant (MDR) strains in pathogenic bacteria, such as Escherichia coli, Staphylococcus aureus, Salmonella Typhi and Citrobacter koseri, has become a major society health hazard. Essential oils could serve as a promising tool as a natural drug in fighting the problem with these bacteria. The current study aimed to investigate the antimicrobial effectiveness of tea tree (Melaleuca alternifolia (Maiden and Betche) Cheel), rosemary (Rosmarinus officinalis L.), eucalyptus (Eucalyptus obliqua L’Hér.), and lavender (Lavandula angustifolia Mill) essential oils. The antimicrobial properties of essential oils were screened against four pathogenic bacteria, E. coli, S. aureus, S. Tyhpi, and C. koseri, and two reference bacterial strains, while for the testing, the agar well diffusion method was used. Gas chromatography (GC) and gas chromatography–mass spectrometric (GC–MSD) analyses were performed on essential oils. The obtained results showed that M. alternifolia essential oil is the richest in terpinen-4-ol, R. officinalis and E. oblique essential oils in 1,8-cineole, and L. angustifolia essential oil in α-terpinyl acetate. In addition, the main bioactive compounds present in the essential oil of tea tree are rich in α-pinene (18.38%), limonene (7.55%) and γ-terpinene (14.01%). The essential oil of rosemary is rich in α-pinene (8.38%) and limonene (11.86%); eucalyptus essential oil has significant concentrations of α-pinene (12.60%), p-cymene (3.24%), limonene (3.87%), and γ-terpinene (7.37%), while the essential oil of lavender is rich in linalool (10.71%), linalool acetate (9.60%), α-terpinyl acetate (10.93%), and carbitol (13.05%) bioactive compounds, respectively. The obtained results from the in vitro study revealed that most of the essential oils exhibited antimicrobial properties. Among the tested essential oils, tea tree was discovered to demonstrate the strongest antimicrobial activity. The recorded MIC of S. Typhi was 6.2 mg/mL, 3.4 mg/mL of C. koseri, 3.1 mg/mL of E. coli, and 2.7 mg/mL of E. Coli ATCC 25922, compared to M. alternifolia. Similarly, only S. aureus ATCC 25923 showed antimicrobial activity towards R. officinalis (1.4 mg/mL), E. oblique (2.9 mg/mL), and L. angustifolia (2.1 mg/mL). Based on the obtained results, it is possible to conclude that tea tree essential oil might be used as an ecological antimicrobial in treating infectious diseases caused by the tested pathogens.

scholarly journals Effect of nano-iron chelate on chemical composition and antimicrobial properties of Carum copticum L. essential oil and its main Terpenes from Iran

2018 ◽  
Vol 44 (4) ◽  
pp. 537-542 ◽  
Author(s):  
V Abdossi ◽  
M Kazemi
Keyword(s):  
Antimicrobial Activity ◽  
Candida Albicans ◽  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Bacillus Cereus ◽  
Antimicrobial Properties ◽  
Flowering Stage ◽  
Iron Chelate ◽  
Carum Copticum

The effect of exogenous application of nano-iron chelate (100 and 200 mg/l) in early flowering stage on components of essential oils (EOs) of Carum copticum was evaluated. The EO extracted by hydrodistillation from Iranian C. copticum was characterized by means of GC/MS. The nano-iron chelate application increased γ- terpinene and thymol and decreased α-pinene, β-pinene and p-cymene concentration. The oil was also subjected to antimicrobial activity. C. copticum oil was found to inhibit Bacillus cereus and Candida albicans with the lowest MIC and MBC/MFC values. Thymol and carvacrol possessed the highest antimicrobial activity among the major components. These results clearly show the antimicrobial effects of the essential oil C. copticum.

scholarly journals Antimicrobial Activity of the Essential Oil Obtained from the Seed and Oleo-Gum-Resin of Ferula assa-foetida Against Oral Pathogens

2019 ◽  
Author(s):  
Alireza Daneshkazemi ◽  
Hengameh Zandi ◽  
Abdolrahim Davari ◽  
Mahmood Vakili ◽  
Majid Emtiazi ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Essential Oil ◽  
Essential Oils ◽  
Antibacterial Properties ◽  
Antimicrobial Properties ◽  
Oral Bacteria ◽  
Gas Chromatography Mass Spectrometry ◽  
Diffusion Method ◽  
Streptococcus Sobrinus ◽  
Disk Diffusion Method

Objectives: The objective of this study was to evaluate the antimicrobial activity of the essential oil obtained from oleo-gum-resin and seeds of Ferula assa-foetida. Materials and Methods: Ferula assa-foetida plants were collected from Tabas, Yazd Province, Iran, during summer 2017. Then, essential oils were obtained from its seeds and oleo-gum-resin using hydrodistillation. Gas chromatography-mass spectrometry (GC-MS) test was performed to determine the contents of the essential oils. Four different concentrations of each oil were prepared (2.5, 5, 10, and 20 μg/ml), and the antimicrobial activity of each dose against four oral bacteria (Streptococcus mutans, Streptococcus sobrinus, Streptococcus sanguis, Streptococcus salivarius, and Lactobacillus rhamnosus) was evaluated using the disk diffusion method. The data were analyzed using analysis of variance (ANOVA) and Kruskal-Wallis test in SPSS 17 software. Results: The GC-MS findings exhibited that the main compounds found in essential oils yielded from the seeds and oleo gum resin were (Z) -1-propenyl sec-butyl disulfide and (E) -1-propenyl sec-butyl disulfide. Ferula assa-foetida plant showed a significant antimicrobial effect (P<0.05). The essential oil from Ferula assa-foetida oleo-gum-resin had significantly stronger antibacterial properties compared to the essential oil from Ferula assa-foetida seeds (P<0.001). Both essential oils showed antibacterial properties similar to that of Chlorhexidine. The growth inhibition zone was significantly dependent on the essential oil concentration for all bacteria (P<0.05). Conclusion: Our study revealed that essential oils from seeds and oleo-gum-resin of Ferula assa-foetida have antimicrobial properties. More laboratory studies are required to reach a definitive conclusion.

scholarly journals Lip balm using cinnamon oleoresin and essential oil: microbiological safety assessment with accelerated and extended stability

2020 ◽  
Vol 9 (9) ◽  
pp. e539997544
Author(s):  
Leonam José de Andrade Lima ◽  
Luana Cominato ◽  
Heloísa Moraes Oliveira ◽  
Wanderson de Oliveira dos Santos ◽  
Geoffroy Roger Pointer Malpass ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Essential Oil ◽  
Essential Oils ◽  
Safety Assessment ◽  
Consumer Demand ◽  
Quality Standards ◽  
Plant Origin ◽  
Microbiological Safety ◽  
Product Formulation ◽  
Cinnamon Essential Oil

Due to the growth of the cosmetics industry, developments and improvements are needed for the productive sector and its products to meet consumer demand and the quality standards imposed by inspection bodies. As a result, an area has developed to meet these needs that is known as phytocosmetics. This area involves the inclusion of constituents with of plant origin in the cosmetic product formulation. The objective of this work was to compare the formulations of lip moisturizers incorporating oleoresins and essential oils of cinnamon (Cinnamomun verum), in addition to testing the microbiological safety and the Accelerated and Extended Stability of the formulated products. The tests revealed that the proposed formulations are microbiologically stable and safe, which is due to the antimicrobial activity of the oleoresin and cinnamon essential oil used in the formulations.

Evaluation of antioxidant and antimicrobial activity of Ziziphora ‎clinopodiodes essential oil eluted at different times

2020 ◽  
Vol 16 ◽  
Author(s):  
Mojgan Alizadeh ◽  
Akram Arianfar ◽  
Ameneh Mohammadi
Keyword(s):  
Antimicrobial Activity ◽  
Antioxidant Activity ◽  
Essential Oil ◽  
Essential Oils ◽  
Antioxidant Activities ◽  
Positive Control ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Citronellic Acid ◽  
Antimicrobial And Antioxidant Activity

Objective: Ziziphora clinopodioides is an edible medicinal plant belongs to the Labiatae family that widespread all over Iran. It used as culinary and also in cold and cough treatments in Iran. The aim of present work was to evaluate the effect of different timeframes during the hydrodistillation on essential oil composition, antimicrobial and antioxidant activity. Materials and Methods: The essential oil of Z. clinopodiodes was extracted via hydrodistillation with Clevenger apparatus. The fractions of essential oil were captured at 6 times from the beginning of the distillation: (10, 20, 60, 120, 180 and 240 min). The fractions of essential oil were analyzed by GC/MS and their antibacterial, antifungal and antioxidant activities were studied by Disk - well diffusion and DPPH methods respectively. Results: Six distillation times and whole essential oil were captured during the hydrodistillation. Essential oil yield dropped off significantly during distillation progressed (1.0% for 10 min and 0.025 for 240 min). 1,8 Cineol, Isomenthone, Pulegone, Piperitenone and Citronellic acid were major compounds in fractions and they were affected by distillation times. Pulegone was major compound in all of essential oils. In antioxidant activity assay, whole essential oil was stronger than was stronger than positive control and fractions of essential oil, because of higher levels of Isomenthone, Piperitenone and Citronellic acid. Strongest antimicrobial activity against S. aureus, E. coli and C. albicans was observed from 10 min fraction. Conclusion: Our results indicated that distillation time can create essential oils with specific properties and we can achieve to more efficient essential oil in short times.

scholarly journals Variability in chemical composition and antimicrobial activity of essential oil of Rosa × damascena Herrm. from mountainous regions of Iran

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Mansureh Ghavam ◽  
Afsaneh Afzali ◽  
Maria Manconi ◽  
Gianluigi Bacchetta ◽  
Maria Letizia Manca
Keyword(s):  
Antimicrobial Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Environmental Conditions ◽  
Raw Materials ◽  
Rosa Damascena ◽  
Mountainous Regions ◽  
Aspergillus Brasiliensis ◽  
Suitable Area

Abstract Background Essential oil of Rosa × damascena Herrm. is one of the most valuable and important raw materials for the flavor and fragrance industry. The cultivation of this plant has ancient origins, and Kashan was one of the first mountainous regions of Iran dealing with the cultivation of R. × damascena. In this study, both chemical composition and antimicrobial activity of different rose essential oils obtained from five mountainous areas of Kashan region (Maragh, Qamsar, Sadeh, Javinan, and Kamoo) has been investigated along with the influence of the environmental conditions on these properties. Results Results showed that yield and chemical composition of essential oils obtained from Rosa × damascena were significantly affected by the collection area. In particular, the yield of oils varied from ~0.08 to ~0.132% and citronellol (36.70-9.18%), geraniol (12.82-0.47%), nonadecane (22.73-10.36%), heneicosane (31.7-11.43%), and 1-nonadecene (6.03-3.93%) have been detected as main compounds in all the plants collected, but at different concentrations depending on the collection area. The best fragrance and the highest yield were found in the oil from Kamoo area. Similarly to the chemical composition, the antimicrobial activity of the essential oils was affected by their origin, and essential oil obtained from plants collected from Kamoo area disclosed the highest antibacterial and antifungal efficacy. Its inhibition halos were 17.33±0.58 mm against Aspergillus brasiliensis, 15.67±0.58 mm against Staphylococcus aureus, and 12.33±0. 58 mm against Streptococcus pyogenes. Essential oils of R. damascena were also effective against Gram-negative Pseudomonas aeruginosa and they had a MIC value of 62.50 μg/mL irrespective of the collection area (except the oil from Javinan area). On the contrary, the highest antifungal power against Candida albicans yeast was reached using the essential oil obtained from plants collected in Javinan region (MIC and MBC ~62.50 μg/mL). Conclusions Overall results underline the influence of environmental conditions of the different areas of Kashan region, on the chemical composition of and antimicrobial activity of the essential oils of Rosa × damascena. In addition, results disclosed that Kamoo seemed to be the most suitable area for the competitive cultivation of R. × damascena to the intensive production of aromatic flower oil and natural antimicrobial essential oils.

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