scholarly journals Essential oils as natural antimicrobial agents in postharvest treatments of fruits and vegetables: a review

2021 ◽  
Author(s):  
Yasaman Esmaeili ◽  
Saeed Paidari ◽  
Sanaz Abbasi Baghbaderani ◽  
Leila Nateghi ◽  
A. A. Al-Hassan ◽  
...  
Keyword(s):  
Essential Oils ◽  
Fruits And Vegetables ◽  
Antimicrobial Agents ◽  
Natural Antimicrobial ◽  
Postharvest Treatments

scholarly journals Application of essential oils and polyphenols as natural antimicrobial agents in postharvest treatments: Advances and challenges

2020 ◽  
Vol 8 (6) ◽  
pp. 2555-2568 ◽  
Author(s):  
Laura Maryoris Aguilar‐Veloz ◽  
Montserrat Calderón‐Santoyo ◽  
Yuliana Vázquez González ◽  
Juan Arturo Ragazzo‐Sánchez
Keyword(s):  
Essential Oils ◽  
Antimicrobial Agents ◽  
Natural Antimicrobial ◽  
Postharvest Treatments

scholarly journals Chemical Composition of Apiaceae Family Essential Oils from Different Plants and in-vitro Antimicrobial Activities on Probiotic Microorganisms

2021 ◽  
pp. 1-4
Author(s):  
Alper Çimik ◽  
Keyword(s):  
Chemical Composition ◽  
Antifungal Activity ◽  
Essential Oils ◽  
Human Body ◽  
Antimicrobial Agents ◽  
Antimicrobial Activities ◽  
Natural Antimicrobial ◽  
Ms Analysis ◽  
Antimicrobial And Antifungal Activity

Coriander, fennel, caraway and anise species which have major characteristic specialities of Apiaceae family, have antimicrobial activities on pathogene microorganisms. Probiotic microorganisms have fundamental effects on human body and extermination of probiotics causes many diseases. In this study, it was aimed to determine investigate probiotic resistance against natural antimicrobial agents (as essential oils) compare to pathogenes in previous studies. Analysis of essential oils (Eos) from were analyzed by GC-FID and GC/MS, analysis of Eos antimicrobial and antifungal activity from were analyzed by Microdilution test (as described in CLSI). Linalool (%74.927), (E)-anethole (%68.239), carvone (%61.087) and (E)-anethole (%95.577) were found as major compounds of EOs respectively. All essential oils have antimicrobial activities on probiotic microorganisms.

scholarly journals (187) The Use of Essential Oils as Natural Preservatives for Berry Fruits

HortScience ◽  
2006 ◽  
Vol 41 (4) ◽  
pp. 1042E-1043 ◽  
Author(s):  
Chien Wang
Keyword(s):  
Essential Oils ◽  
Shelf Life ◽  
Antimicrobial Agents ◽  
Fungal Growth ◽  
Vaccinium Corymbosum ◽  
Antimicrobial Compounds ◽  
Natural Antimicrobial ◽  
Microbial Invasion ◽  
Berry Fruits ◽  
Natural Preservatives

Berry fruits such as blackberries (Rubus sp.) and blueberries (Vaccinium corymbosum L.) are highly perishable after harvest. In addition to rapid deterioration in quality, they are also very susceptible to microbial invasion. The shelf life of these berries is usually terminated by decay. Several natural antimicrobial compounds derived from essential oils of plants were studied for their efficacies in inhibiting decay and extending shelf life of berry fruits. The severity of decay in blackberries and blueberries stored at 10 °C was significantly reduced by treatment with thymol. Treatments with menthol or eugenol also suppressed the fungal growth, but to a lesser extent. All of these three natural antimicrobial compounds extended shelf life of blackberries and blueberries as compared to the control. Berries treated with thymol, menthol, or eugenol also maintained better fruit quality with higher levels of sugars, organic acids, and oxygen radical absorbance capacity than the untreated fruits. The effects of these natural antimicrobial agents on the quality and shelf life of other fruits will be investigated.

Antimicrobial Protein Produced by Lactobacillus plantarum ATCC8014 in the Presence of Cymbopogon Sp. Essential Oils

2015 ◽  
Vol 754-755 ◽  
pp. 1045-1053
Author(s):  
Hanina Mohd Noor ◽  
Hairul Shahril Muhamad ◽  
Ismatul Nurul Asyikin Ismail ◽  
A’firah Mohd Sakri Shukri ◽  
Salina Mat Radzi ◽  
...  
Keyword(s):  
Essential Oils ◽  
Antimicrobial Agents ◽  
Antimicrobial Protein ◽  
Gram Negative Bacteria ◽  
Natural Antimicrobial ◽  
Specific Chemical ◽  
Low Concentration ◽  
Transcription Process ◽  
Sds Page ◽  
Intracellular Proteins

Protein production by bacteria might be increased in stressful conditions such as in the presence of antimicrobial agents. Many studies proved that antibiotics or antimicrobial agents at low concentration are able to activate or repress gene transcription process in bacteria. However, there are still few studies on potential of natural antimicrobial compounds such asCymbopogonessential oils acting as specific chemical signal that can trigger biological functions of bacteria. Therefore, this study aims to explore the potential of natural antimicrobial compound (Cymbopogon flexuosusandCymbopogon nardus) at low concentration in regulating proteins production byLactobacillus plantarumATCC8014. The bacteria cells ofL. plantarumATCC8014 are exposed toCymbopogonessential oils at low concentration in fermentation process for 48 hours at 37°C. SDS-PAGE analysis showed that a new intracellular protein with approximate size of 40 kDa was produced byL. plantarumATCC8014 after being enhanced withC. nardusessential oil. Besides, the intracellular proteins, each with approximate size of 85 kDa, 45 kDa and 28 kDa synthesized byL. plantarumATCC8014 prior to inducing withC. nardusorC. flexuosuswere expressed differently. Some of the intracellular proteins were highly expressed and some of the proteins were repressed based on the intensity of protein bands appeared. Hence,L. plantarumATCC8014 in the presence ofCymbopogonessential oils at low concentration could regulate the intracellular proteins production. The isolated protein also showed antimicrobial activity against selected Gram-positive and Gram-negative bacteria.

Fibrous wound dressings encapsulating essential oils as natural antimicrobial agents

2015 ◽  
Vol 3 (8) ◽  
pp. 1583-1589 ◽  
Author(s):  
I. Liakos ◽  
L. Rizzello ◽  
H. Hajiali ◽  
V. Brunetti ◽  
R. Carzino ◽  
...  
Keyword(s):  
Essential Oils ◽  
Cellulose Acetate ◽  
Antimicrobial Agents ◽  
Antibiotic Activity ◽  
Wound Dressings ◽  
Natural Polymer ◽  
Natural Antimicrobial ◽  
Electrospinning Technique

Essential oils with high antibiotic activity were incorporated into cellulose acetate natural polymer. By using the electrospinning technique, nanofibrous matrices were prepared to be used as effective antimicrobial wound dressings.

scholarly journals Evaluation of selected parameters of edam type cheese packed under foil with natural antimicrobial agents

10.5219/1110 ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 598-603
Author(s):  
Alena Saláková ◽  
Libor Kalhotka ◽  
Miroslav Jůzl ◽  
Eva Burdová ◽  
Gabriela Růžičková ◽  
...  
Keyword(s):  
Essential Oils ◽  
Antimicrobial Agents ◽  
Viable Count ◽  
Coliform Bacteria ◽  
Natural Antimicrobial ◽  
Dry Coating ◽  
Antibacterial And Antifungal Activities ◽  
Sensory Parameters ◽  
Antibacterial And Antifungal ◽  
Plant Sources

The aim of this study was to evaluate the properties of essential oils packed in foils derived from different plant sources used in Edam type cheese on selected parameters (total viable count of microorganism, coliform bacteria, micromycetes, sensory parameters and instrumental colour). Essential oils have antibacterial and antifungal activities against microorganisms. However, the concentration of these substances applied in cheeses should be considered carefully because of their possible negative influences on sensory parameters. Mixture of the essential oils (clove/cinnamon/thymol in a 1:2:1 ratio), three concentrations (3.9 %, 6.6 %, 9.0 %), respectively mixture of the essential oils (eugenol/thymol/cinnamon in a 1:1:1 ratio), three concentrations (0.10 %, 0.19 %, 0.24 % as a 5% solution in limonene in a dry coating) were used. Samples wrapped in polystyrene dishes were stored in the refrigerator at 3 – 6 °C. Analyses were made after 48 h, 168 h (144 h), 216 h (240 h) respectively. Taste is the most affected by presence of essential oils. The effectiveness of the film with the mixture A seems to be more effective in eliminating microorganisms. Negative sensory changes were observed at higher concentration. Based on the results, the tested foils seem to be promising materials suitable for packaging of cheese.

scholarly journals Encapsulation and Co-Precipitation Processes with Supercritical Fluids: Applications with Essential Oils

2010 ◽  
Vol 4 (1) ◽  
pp. 31-41 ◽  
Author(s):  
Ángel Martín ◽  
Salima Varona ◽  
Alexander Navarrete ◽  
María José Cocero
Keyword(s):  
Essential Oils ◽  
Supercritical Fluids ◽  
Freeze Drying ◽  
Antimicrobial Agents ◽  
Powder Form ◽  
Natural Antimicrobial ◽  
Precipitation Processes ◽  
Recent Developments ◽  
Commercial Applications ◽  
Co Precipitation

Essential oils have important commercial applications as preservatives and flavours, and more recently as natural antimicrobial agents. These applications require a suitable formulation constituted by biodegradable compounds that protect the essential oil from degradation and evaporation at the same time that allows for a sustained release. Microcapsules of biopolymers loaded with essential oils meet these requirements. Such microcapsules can be prepared with different processes such as spray-drying, freeze-drying and coacervation, and supercritical fluids are an advantageous medium for this purpose. Some supercritical fluid-based precipitation processes have already been applied to produce these microcapsules. Amongst them, the results obtained with Particles from Gas Saturated Solutions (PGSS), PGSS-drying and Concentrated Powder Form (CPF) processes are particularly promising. Recent developments in the preparation of formulations with supercritical fluids include the preparation of liposomes and micelles, which can be suitable carriers for essential oils.

scholarly journals Chitosan-Based Coating with Antimicrobial Agents: Preparation, Property, Mechanism, and Application Effectiveness on Fruits and Vegetables

2016 ◽  
Vol 2016 ◽  
pp. 1-24 ◽  
Author(s):  
Yage Xing ◽  
Qinglian Xu ◽  
Xingchen Li ◽  
Cunkun Chen ◽  
Li Ma ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Antimicrobial Activity ◽  
Essential Oils ◽  
Shelf Life ◽  
Fruits And Vegetables ◽  
Antimicrobial Agents ◽  
Antimicrobial Properties ◽  
Storage Quality ◽  
Chitosan Coating ◽  
Carrier Film

Chitosan coating is beneficial to maintaining the storage quality and prolonging the shelf life of postharvest fruits and vegetables, which is always used as the carrier film for the antimicrobial agents. This review focuses on the preparation, property, mechanism, and application effectiveness on the fruits and vegetables of chitosan-based coating with antimicrobial agents. Chitosan, derived by deacetylation of chitin, is a modified and natural biopolymer as the coating material. In this article, the safety and biocompatible and antimicrobial properties of chitosan were introduced because these attributes are very important for its application. The methods to prepare the chitosan-based coating with antimicrobial agents, such as essential oils, acid, and nanoparticles, were developed by other researchers. Meanwhile, the application of chitosan-based coating is mainly due to its antimicrobial activity and other functional properties, which were investigated, introduced, and analyzed in this review. Furthermore, the surface and mechanical properties were also investigated by researchers and concluded in this article. Finally, the effects of chitosan-based coating on the storage quality, microbial safety, and shelf life of fruits and vegetables were introduced. Their results indicated that chitosan-based coating with different antimicrobial agents would probably have wide prospect in the preservation of fruits and vegetables in the future.

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