VOLATILE OIL COMPOSITION AND ANTIMICROBIAL ACTIVITY OF CURCUMA OLIGANTHA VAR. LUTEA RHIZOMES

The volatile oil composition of four Baccharis species ( Baccharis papilosa, B. polycephala, B. buxifolia, and B. convawyi) growing wild in Bolivia were studied by GC and GC/MS. The antimicrobial activity of the oils was determined by the agar diffusion and bioautography methods. Solvent extracts, polar and non-polar, of the same species were also tested for antimicrobial and antioxidant activities. Extracts from B. polycephala, B. papilosa and B. convawyi presented significant antioxidant activity, determined using the DPPH radical scavenging method, showing EC50 values of 4.74, 7.17 and 7.97 μg/mL, respectively. Screening for antimicrobial activity was conducted using the agar diffusion test. The most active extracts (% inhibition ≥ 50) were further examined by the dilution method. All the plant extracts studied showed higher antimicrobial activity against S. aureus (Gram-positive) than against E. coli and P. fluorescens (Gram-negative).

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Volatile oil composition and antimicrobial activity of two Thymus species

Pharmacognosy Journal ◽

10.1016/j.phcgj.2012.09.002 ◽

2013 ◽

Vol 5 (2) ◽

pp. 77-79 ◽

Cited By ~ 6

Author(s):

Mojtaba Hosseini Behbahani ◽

Younes Ghasemi ◽

Mohammad Javad Khoshnoud ◽

Pouya Faridi ◽

Gholamali Moradli ◽

...

Keyword(s):

Antimicrobial Activity ◽

Volatile Oil ◽

Oil Composition

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Volatile Constituents Analysis and Antimicrobial Activity of Two Subspecies Ballota nigra L. From Iran

10.21203/rs.3.rs-127255/v1 ◽

2020 ◽

Author(s):

Reza Dehghani Bidgoli

Keyword(s):

Antimicrobial Activity ◽

Antibacterial Activity ◽

Methanol Extract ◽

Antimicrobial Properties ◽

Volatile Oil ◽

Ethyl Linoleate ◽

Perennial Herb ◽

Oil Composition ◽

Plant Extraction ◽

Methanolic Extracts

Abstract Background Ballota nigra L. is a perennial herb of the Lamiaceae family and it's native to the Mediterranean region and central Asia, also it can found throughout Europe. during this research, the volatile oil composition and antimicrobial activity of the methanol extract from flowering aerial parts of two subspecies of B. nigra (B. nigra ssp. foetida and B. nigra ssp. anatolica) were evaluated. Plant extraction was prepared by the maceration method and the antibacterial activity of methanolic extracts against 12 microorganisms was investigated by disc diffusion and minimal inhibitory concentration (MIC) methods.Results: GC/MS analysis of the volatile oil confirms the presence of 25 constituents in B. nigra ssp. foetida and 27 constituents in B. nigra ssp. anatolica. the most constituents in these two subspecies were α- Terpineol, Eicosane, Hexadecanoic acid, Longipinene epoxide, and Ethyl linoleate, which had slight differences within the amount of total volatile oil. within the antibacterial and MIC tests, indicated that methanolic extract of two subspecies Ballota nigra L. had acceptable antibacterial activity and therefore the B. nigra ssp. anatolica had more antibacterial activity in compression to B. nigra ssp. foetida.Conclusion: Today the tendency of natural products due to antioxidant and antimicrobial properties is increasing, and plants are the main source of these safe materials. During this respect, our study is often considered because of the first report on the volatile oil composition and antimicrobial activity of methanol extract of various subspecies of .B. nigra.

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Volatile Oil-Bearing Flora of Siberia VIII: Essential Oil Composition and Antimicrobial Activity of WildSolidago virgaureaL. from the Russian Altai

Journal of Essential Oil Research ◽

10.1080/10412905.2006.9699382 ◽

2006 ◽

Vol 18 (1) ◽

pp. 46-50 ◽

Cited By ~ 9

Author(s):

Alexey V. Tkachev ◽

Elena A. Korolyuk ◽

Wudeneh Letchamo

Keyword(s):

Antimicrobial Activity ◽

Essential Oil ◽

Volatile Oil ◽

Essential Oil Composition ◽

Oil Composition ◽

Russian Altai

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Genetic Diversity of Basil (Ocimum spp. - Lamiaceae) Based on RAPD Markers and Volatile Oil Constituents

HortScience ◽

10.21273/hortsci.33.3.492f ◽

1998 ◽

Vol 33 (3) ◽

pp. 492f-493

Author(s):

Roberto F. Vieira ◽

James E. Simon ◽

Peter Goldsbrough ◽

Antonio Figueira

Keyword(s):

Genetic Diversity ◽

Molecular Markers ◽

Rapd Markers ◽

Volatile Oil ◽

Essential Oil Composition ◽

Oil Composition ◽

Traditional Medicines ◽

The Tropics ◽

High Degree ◽

First Time

Essential oils extracted from basil (Ocimum spp.) by steam distillation are used to flavor foods, oral products, in fragrances, and in traditional medicines. The genus Ocimum contains around 30 species native to the tropics and subtropics, with some species naturalized and/or cultivated in temperate areas. Interand intraspecific hybridization have created significant confusion in the botanical systematics of this genus. Taxonomy of basil (O. basilicum) is also complicated by the existence of numerous varieties, cultivars, and chemotypes within the species that do not differ significantly in morphology. In this study we are using RAPD markers and volatile oil composition to characterize the genetic diversity among the most economically important Ocimum species. We hypothesize that the genetic similarity revealed by molecular markers will more accurately reflect the morphological and chemical differences in Ocimum than essential oil composition per se. Preliminary research using five Ocimum species, four undetermined species, and eight varieties of O. basilicum (a total of 19 accessions) generated 107 polymorphic fragments amplified with 19 primers. RAPDs are able to discriminate between Ocimum species, but show a high degree of similarity between O. basilicum varieties. The genetic distance between nine species and among 55 accessions within the species O. americanum, O. basilicum, O. campechianum, O. × citriodorum, O. gratissimum, O. kilimandscharium, O. minimum, O. selloi, and O. tenuiflorum will be analyzed by matrix of similarity and compared to the volatile oil profile. This research will for the first time apply molecular markers to characterize the genetic diversity of Ocimum associate with volatile oil constituent.

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

Current Bioactive Compounds ◽

10.2174/1573407216999200507122039 ◽

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.

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Basil Essential Oil: Composition, Antimicrobial Properties, and Microencapsulation to Produce Active Chitosan Films for Food Packaging

Foods ◽

10.3390/foods10010121 ◽

2021 ◽

Vol 10 (1) ◽

pp. 121

Author(s):

Ghita Amor ◽

Mohammed Sabbah ◽

Lucia Caputo ◽

Mohamed Idbella ◽

Vincenzo De Feo ◽

...

Keyword(s):

Antimicrobial Activity ◽

Essential Oil ◽

Shelf Life ◽

Food Packaging ◽

Antimicrobial Properties ◽

Edible Films ◽

Biological Properties ◽

Oil Composition ◽

Packaging System ◽

Cooked Ham

The essential oil (EO) from basil—Ocimum basilicum—was characterized, microencapsulated by vibration technology, and used to prepare a new type of packaging system designed to extend the food shelf life. The basil essential oil (BEO) chemical composition and antimicrobial activity were analyzed, as well as the morphological and biological properties of the derived BEO microcapsules (BEOMC). Analysis of BEO by gas chromatography demonstrated that the main component was linalool, whereas the study of its antimicrobial activity showed a significant inhibitory effect against all the microorganisms tested, mostly Gram-positive bacteria. Moreover, the prepared BEOMC showed a spheroidal shape and retained the EO antimicrobial activity. Finally, chitosan-based edible films were produced, grafted with BEOMC, and characterized for their physicochemical and biological properties. Since their effective antimicrobial activity was demonstrated, these films were tested as packaging system by wrapping cooked ham samples during 10 days of storage, with the aim of their possible use to extend the shelf life of the product. It was demonstrated that the obtained active film can both control the bacterial growth of the cooked ham and markedly inhibit the pH increase of the packaged food.

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New menthone type of Mentha pulegium L. volatile oil from northwest Iran

Czech Journal of Food Sciences ◽

10.17221/165/2009-cjfs ◽

2011 ◽

Vol 29 (No. 3) ◽

pp. 285-290 ◽

Cited By ~ 10

Author(s):

M.B. Hassanpouraghdam ◽

A.B. Akhgari ◽

M.A. Aazami ◽

J. Emarat-Pardaz

Keyword(s):

Essential Oil ◽

Volatile Oil ◽

Oil Composition ◽

Mentha Pulegium ◽

Food Industries ◽

Aerial Parts ◽

Sesquiterpene Hydrocarbons ◽

Main Class ◽

Northwest Iran ◽

A Minor

The constituents of the volatile oil of air-dried aerial parts of Mentha pulegium L. (Lamiaceae) plants wildly growing in Northwest Iran were analysed by GC/MS. 46 components were identified, comprising 96.6% of the essential oil. Monoterpenes (78.9%) were the main class of the identified components followed by a minor proportion of sesqui-<br />terpenes (11%). Oxygenated monoterpenes (75.3%) were the major subclass of volatile oil components with menthone (38.7%), menthol (11.3%), neomenthol (10.5%), and pulegone (6.8%) as major compounds. Sesquiterpene hydrocarbons (10.6%) were the highlighted subclass of 15 carbons sesquiterpenoidal compounds with (E)-caryophyllene (4.9%) and β-cubebene (2.5%) as their principle representatives. Furthermore, menthyl acetate (C<sub>12</sub> acetylated monoterpene derived compound) was contained considerable amounts (5.2%) in the essential oil. In total, volatile oil composition of M. pulegium L. plants studied in the present experiment was characterised as a new menthone type with appreciable amounts of menthol and neomenthol, and it could be used as a potential source of these high value monoterpenes in pharmaceutical and food industries.

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