GC-MS combined with chemometric techniques for the quality control and original discrimination of Curcumae longae rhizome: Analysis of essential oils

2014 ◽  
Vol 37 (4) ◽  
pp. 404-411 ◽  
Author(s):  
Yichen Hu ◽  
Weijun Kong ◽  
Xihui Yang ◽  
Liwei Xie ◽  
Jing Wen ◽  
...  
Keyword(s):  
Quality Control ◽  
Essential Oils ◽  
Original Discrimination ◽  
Chemometric Techniques

scholarly journals Pesticide and Plasticizer Residues in Citrus Essential Oils from Different Countries

2010 ◽  
Vol 5 (8) ◽  
pp. 1934578X1000500 ◽  
Author(s):  
Giuseppa Di Bella ◽  
Vincenzo Lo Turco ◽  
Rossana Rando ◽  
Gabriella Arena ◽  
Donatella Pollicino ◽  
...  
Keyword(s):  
Quality Control ◽  
Essential Oils ◽  
Organochlorine Pesticides ◽  
Production Cycle ◽  
Improper Use ◽  
Citrus Essential Oils

Residue analyses are very important in the quality control of citrus essential oils. Organophosphorus and organochlorine pesticides, phosphorated plasticizers and chloroparaffins contamination were investigated by HRGC with FPD and ECD detectors in 120 citrus essential oils produced in Italy and in 70 from other countries in the crop year 2006-2007. Results showed that the largest pesticide quantities were found in oils from Brazil and Spain. The presence of such residues might be the result of an improper use of pesticide in citrus growing or of previous contamination of the extractors. However, the pesticide levels showed a measurable decrease in relation to past production years. The absence of phosporated plasticizers and chloroparaffins can be the result of either improvement of the procedures used during the production cycle or in the storage of the essential oils compared with previous years.

scholarly journals A Chemical Marker Proposal for the Lantana genus: Composition of the Essential Oils from the Leaves of Lantana radula and L. canescens

2010 ◽  
Vol 5 (4) ◽  
pp. 1934578X1000500
Author(s):  
José G. Sena Filho ◽  
Haroudo S. Xavier ◽  
José M. Barbosa Filho ◽  
Jennifer M. Duringer
Keyword(s):  
Quality Control ◽  
Chemical Analysis ◽  
Essential Oil ◽  
Essential Oils ◽  
The Other ◽  
Chemical Markers ◽  
Chemical Marker ◽  
High Concentration ◽  
Minor Compounds ◽  
Prior Analysis

Essential oil extracts from the leaves of two Lantana species ( L. radula Sw. and L. canescens Kunth), for which no prior analysis has been reported, were analyzed by GC-MS. This information was utilized to propose chemical markers for Lantana species so that identification between physically similar plant species can be achieved through chemical analysis. Results showed 33 constituents for L. canescens, among which β-caryophyllene (43.9%), β-cubebene (10.1%), elixene (8.6%), β-phellandrene (6.1%), α-caryophyllene (2.6%) and dehydro-aromadendrene (2.6%) were the principle components. L. radula revealed the presence of 21 compounds, the most abundant of which were β-cubebene (31.0%), β-caryophyllene (20.8%), elixene (10.0%), α-salinene (6.4%), β-phellandrene (6.1%), copaene (4.9%) cadinene (1.4%) and psi-limonene (1.4%). The high concentration of β-caryophyllene in the samples tested here and those in the literature make it a good candidate for a chemical marker for Lantana species, with β-cubebene, elixene and β-phellandrene following as minor compounds identified more sporadically in this genus. On the other hand, Lippia species, which are morphologically similar to those from the Lantana genus, would contain limonene, citral, carvacrol, β-myrcene, camphor and thymol as the main chemical markers. These chemical markers would be a powerful tool for maintaining quality control in the extraction of essential oils for use in medicinal applications, as well as in identification of plant specimens to a taxonomist.

Application of near-infrared spectroscopy in quality control and determination of adulteration of african essential oils

2006 ◽  
Vol 17 (2) ◽  
pp. 121-128 ◽  
Author(s):  
Hector R. Juliani ◽  
Jeremy Kapteyn ◽  
Dayton Jones ◽  
AdolFIna R. Koroch ◽  
Mingfu Wang ◽  
...  
Keyword(s):  
Quality Control ◽  
Infrared Spectroscopy ◽  
Essential Oils ◽  
Near Infrared Spectroscopy ◽  
Near Infrared

Computer-Aided GC/MS Analysis of Essential Oils in Complex Vegetable Drugs for Quality Control

Planta Medica ◽  
1989 ◽  
Vol 55 (07) ◽  
pp. 633-633
Author(s):  
D. Allemann ◽  
R. Andrès ◽  
D. Borquin ◽  
J. Clerc
Keyword(s):  
Quality Control ◽  
Essential Oils ◽  
Ms Analysis ◽  
Computer Aided

Vibrational spectroscopic studies to acquire a quality control method of Eucalyptus essential oils

Biopolymers ◽  
2005 ◽  
Vol 78 (5) ◽  
pp. 237-248 ◽  
Author(s):  
M. Baranska ◽  
H. Schulz ◽  
S. Reitzenstein ◽  
U. Uhlemann ◽  
M. A. Strehle ◽  
...  
Keyword(s):  
Quality Control ◽  
Essential Oils ◽  
Control Method ◽  
Spectroscopic Studies ◽  
Quality Control Method

scholarly journals Oxygen introduction during extraction and the improvement of antioxidant activity of essential oils of basil, lemon and lemongrass

2017 ◽  
Vol 47 (8) ◽  
Author(s):  
Daniele de Freitas Ferreira ◽  
Flávia Michelon Dalla Nora ◽  
Bruna Nichelle Lucas ◽  
Cristiano Ragagnin de Menezes ◽  
Alexandre José Cichoski ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Quality Control ◽  
Medicinal Plants ◽  
Essential Oil ◽  
Essential Oils ◽  
Oil Extraction ◽  
Suitable Alternative ◽  
Simple Modification ◽  
Oxygenated Compounds ◽  
Food Quality Control

ABSTRACT: Essential oil extraction is commonly carried out by using the hydrodistillation method, which is described in official compendia of food quality control and medicinal plants. Despite the widespread use of this method, few studies have evaluated the effect of the atmosphere change during extraction on the composition and antioxidant activity of essentials oils. Therefore, a study of oxygen introduction influence during the extraction of essential oils from basil, lemongrass and lemon by hydrodistillation was performed. Total amount of oxygenated compounds (e.g., linalool, camphor, α-terpineol, neral, geranial, eugenol and α-muurolol) increased for all essential oils extracted under oxygen flow. Antioxidant activity evaluated by using the ORAC method significantly increased (P<0.0001) with oxygen from 618 to 906, 355 to 613 and 72 to 262µmol Trolox g-1 oil for basil, lemongrass and lemon, respectively. Therefore, the simple modification proposed could be considered a suitable alternative to obtain essential oils with higher antioxidant activity.

Nanosensors for food quality control especially essential oils

2021 ◽  
pp. 273-288
Author(s):  
Adriana Marcia Graboski ◽  
Natalia Paroul ◽  
Juliana Steffens ◽  
Clarice Steffens
Keyword(s):  
Quality Control ◽  
Essential Oils ◽  
Food Quality ◽  
Food Quality Control
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