Application of polyaniline–nylon-6 nanocomposite, GC-MS and chemometrics for rapid and comprehensive analysis of Zingiber officinale fragrance components

2014 ◽  
Vol 6 (12) ◽  
pp. 4279-4287 ◽  
Author(s):  
M. Asadollahi-Baboli ◽  
A. Aghakhani
Keyword(s):  
Comparative Analysis ◽  
Essential Oil ◽  
Zingiber Officinale ◽  
Nylon 6 ◽  
Comprehensive Analysis

Polyaniline–nylon-6 nanocomposite for headspace adsorptive microextraction together with GC-MS and chemometrics were utilized as a novel procedure for comprehensive and comparative analysis of oregano fragrance and its essential oil.

Comparative analysis of essential oil obtained from fresh and dried leaves of medicinal sage

2020 ◽  
pp. 39-53
Author(s):  
Tatyana Shcheglova
Keyword(s):  
Comparative Analysis ◽  
Essential Oil ◽  
Raw Materials ◽  
Quantitative Difference ◽  
Botanical Garden ◽  
Component Composition ◽  
Gas Chromatography Mass Spectrometry ◽  
Qualitative And Quantitative ◽  
Salvia Officinalis L ◽  
Medical University

The article presents results of the study of a comparative analysis of essential oil obtained from fresh and dried leaves of medicinal sage (Salvia officinalis L.), growing in the Botanical Garden of the First Moscow State Medical University named after Sechenov. The studies were carried out using gas chromatography– mass spectrometry. Qualitative and quantitative difference in the component composition of the essential oil obtained from fresh and dried raw materials was determined as a result of the study.

Chemical Composition and Active Properties Evaluation of Wild Oregano (Origanum Vulgare) and Ginger (Zingiber Officinale-Roscoe) Essential Oils

2018 ◽  
Vol 69 (8) ◽  
pp. 1927-1933 ◽  
Author(s):  
Mariana Deleanu ◽  
Elisabeta E. Popa ◽  
Mona E. Popa
Keyword(s):  
Essential Oil ◽  
Growth Inhibition ◽  
Gallic Acid ◽  
Aspergillus Flavus ◽  
Zingiber Officinale ◽  
Penicillium Expansum ◽  
Origanum Vulgare ◽  
Zingiber Officinale Roscoe ◽  
Oregano Oil ◽  
Gallic Acid Equivalent

The compounds in Ginger (Zingiber officinale-Roscoe) essential oil provenience China and wild oregano (Origanum vulgare) essential oil of Romanian origin were identified by GC/MS and their antioxidant and antifungal properties were evaluated. Wild oregano oil was characterized by high content of oxygenated monoterpenes hydrocarbons (84.05%) of which carvacrol was the most abundant (73.85%) followed by b-linalool (3.46%) and thymol (2.29%). Ginger oil had a higher content of sesquiterpene hydrocarbons including zingiberene (31.47%), b-sesquiphellandrene (13.76%), a-curcumene (10.41%), a-farnesene (8.31%) and b-bisabolene (7.55%) but a lower content of oxygenated monoterpenes (7.97%). The high content of oxygenated monoterpens of wild oregano oil is in accordance with total content of polyphenols determined by the Folin�Ciocalteu method (6.71�0.73 mg of gallic acid equivalent per g oil). Ginger oil had only 1.34�0.22 mg gallic acid equivalent per g oil. Wild oregano oils exhibited appreciable in vitro antioxidant activity as assessed by 2, 2`-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging and 2,2�-azino-bis (3 ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS). The sample concentration required to scavenge 50% of the DPPH free radicals was 0.76�0.13 mg/mL for wild oregano oil compared to 20.22�2.12 mg/mL for ginger oil. Also, wild oregano oils showed significant inhibitory activity against selected pathogenic fungi (Fusarium oxysporum, Aspergillus flavus and Penicillium expansum). 1�L of oregano oil is sufficient for almost 75% growth inhibition of Aspergillus flavus compared to ginger oil which shows antifungal activity at 240�L for 78% growth inhibition. It can be concluded that wild oregano oil could be used as food preservative in some food products in which Fusarium oxysporum, Aspergillus flavus and Penicillium expansum could grow and have potential to produce health hazards mycotoxines.

scholarly journals 6-shogaol suppresses oxidative damage in L6 muscle cells

2020 ◽  
Vol 63 (1) ◽  
Author(s):  
Jinyoung Hur ◽  
Yeonmi Lee ◽  
Chang Jun Lee ◽  
Ho-Young Park ◽  
Sang Yoon Choi
Keyword(s):  
Skeletal Muscle ◽  
Essential Oil ◽  
Oxidative Damage ◽  
Zingiber Officinale ◽  
Muscle Cells ◽  
Skeletal Muscle Cell ◽  
Intracellular Ros ◽  
Zingiber Officinale Roscoe ◽  
Mrna And Protein Expression ◽  
L6 Muscle Cells

Abstract Ginger (Zingiber Officinale Roscoe) has been known reduce muscle pain after exercise, and 6-shogaol {(E)-1-(4-Hydroxy-3-methoxyphenyl)dec-4-en-3-one)} is the major essential oil contained in ginger. In this study, the protective effect of 6-shogaol on L6 muscle cells against oxidative damage was measured. 6-shagol inhibited the damage of L6 cell induced by H2O2, and allowed the increase in mRNA and protein expression levels of intracellular HO-1 and NRF2. 6-shogaol also reduced the production of intracellular ROS. These results suggested that 6-shagol effectively inhibits oxidative damage of skeletal muscle cell.

scholarly journals Comparative Analysis of Major Mosquito Vectors Response to Seed-Derived Essential Oil and Seed Pod-Derived Extract from Acacia nilotica

2018 ◽  
Vol 15 (2) ◽  
pp. 388 ◽  
Author(s):  
Perumal Vivekanandhan ◽  
Raji Venkatesan ◽  
Govindaraju Ramkumar ◽  
Sengodan Karthi ◽  
Sengottayan Senthil-Nathan ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Essential Oil ◽  
Acacia Nilotica ◽  
Mosquito Vectors

scholarly journals Burials with arrowheads in graves of the Mazunino Culture in the Middle Kama Region

2020 ◽  
pp. 52-66
Author(s):  
O.F. Khairullina ◽  
E.M. Chernykh
Keyword(s):  
Comparative Analysis ◽  
Local Communities ◽  
Comprehensive Analysis ◽  
Group Differences ◽  
Burial Practices ◽  
The Great Migration ◽  
Morphological Differences ◽  
Burial Grounds ◽  
Burial Rite ◽  
Grave Goods

The paper is focused on burial grounds of the Mazunino Culture (or Mazunino stage of the Cheganda Cul-ture of the Pyany Bor Cultural-Historical Community by R.D. Goldina) in the Middle Kama Region. They date to the 3rd–5th c. AD and chronologically correlate with the Great Migration Period. The processes of major and minor migrations of that time had an impact on various components of the autochthonous Kama Region cultures. The focus of our research is the burials with throwing weapons, primarily arrowheads found in the Mazunino archers’ burials. The interest in throwing weapon was trigged by the heuristical observation of anthropologist Ivan G. Shi-robokov for the Boyar «Aray» cemetery, where the existence of morphological differences in a group of buried men with arrowheads was statistically proven. To examine this phenomenon, a working hypothesis was put for-ward: intra-group differences of one small necropolis could be reflected in the burial rite and the grave goods of all Mazunino archers’ burials. In total, 148 burials and 146 skeletons with arrowheads from 12 necropolises of the Mazunino Culture have been examined. The comparative analysis of the burial rite features demonstrated a sta-ble correlation between the presence of arrowheads and male burials. The archers’ burials correspond to the burial practices of the majority of the Mazunino population. Rare deviations suggest close relations between local communities and other cultures and ethnicities, primarily with nomadic tribes. Bone arrowheads as a primary weapon of the Mazunino warriors continue the previous traditions of the Ananyino, Pyany Bor (Cheganda) / Kara-Abyz Cultures. A comprehensive analysis of the inter-occurrence of implements in male equipment with arrow-heads allowed distinguishing two conventional groups of burials. The first one is characterized by the presence of only arrowheads in the burial equipment. These grave goods were typical for Mazunino population and consisted of ordinary belts, iron knives, beads, etc. The second group was significantly different, as these were individuals who were skilled in using various weapons, and their kit included various types of weapons for both close and long-range combat. Probably, there was a military gradation among such archers, which needs to be supported by analysis of a larger number of the Mazunino burials. The results of our work need to be verified using the an-thropological materials from other Mazunino burial grounds.

Numerical Simulation on Deformation Features and Filling Efficiency of Channel Goaf Foundation

2013 ◽  
Vol 353-356 ◽  
pp. 3707-3712
Author(s):  
Zhi Dong Zhou ◽  
Hong Bo Zhang ◽  
Xiu Guang Song ◽  
Hong Ya Yue
Keyword(s):  
Numerical Simulation ◽  
Comparative Analysis ◽  
Comprehensive Analysis ◽  
Obvious Effect ◽  
Before And After ◽  
Check Gate ◽  
Deformation Features ◽  
Natural Foundation ◽  
The Stability

For analyzing and evaluating the deformation features of channel goaf foundation and its effect on superstructure, according to the foundation reinforcement engineering of Ji-Liang Channel Check Gate, the comparative analysis on the differential settlement between the unfavorable foundation and natural foundation was performed by numerical simulation with FLAC3D. The computer results showed that the present foundation had obvious effect on the stability and security of the superstructure, so the engineering treatment are needed. Based on technical-economic comprehensive analysis among three treatment methods for strengthening the channel golf foundation with different kinds of filling, the reasonable method is put forward in this paper. By comparing mechanical characteristic of flashboard in channel goaf before and after strengthening, we confirmed the foundation stability of channel goaf and the security of the ground building which can satisfy the long term usage requirements.

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