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Showing 7 results for Neral
Essential oil of Lippia citriodora H.B.K. (Verbenaceae)
F Mojab , K Javidnia , A Zarghi , M Yamohammadi ,
year 1, Issue 4 (12-2002)
Abstract
The essential oil of the leaves of Lippia citriodora H.B.K. (Verbenaceae) cultivated in Iran was analyzed by capillary GC, GC/MS and co-injection techniques. The major constituents were geraniol, 1-octen-3- ol,nerol, neral and limonene + 1,8- cineole.

Determination of Nutritive Value and Mineral Elements of some Important Medicinal Plants from Western Part of India
H. Nile Shivraj , C.n. N.khobragade,
year 8, Issue 29 (2-2009)
Abstract

Background: Medicinal plants viz Tinospora cordifolia (Gulvel), Gymnema sylvester (Morasingi), Tricholepis glaberrima (Brahmdandi) are very important for treatment of diabetes mellitus and other various diseases. These plants have great importance due to their nutritive value and major source of medicines as they have been found through out human history

Objective: Evaluation of Nutritive value and mineral elements of T.cordifolia (Gulvel), G. sylvester (Morasingi), T. glaberrima (Brahmdandi).

Methods: The nutrients were analyzed by using different biochemical methods while the mineral elements were analyzed by Flame photometry and by using various titration methods.

Results: T. cordifolia (Gulvel), G. sylvester (Morasingi), T. glaberrima (Brahmdandi) showed sufficient mineral elements like P, K, Na, Ca, Fe, Zn, N, Mg and low in Cu, Cr with good nutritive value and rich in carbohydrate enough protein but low in fat content

Conclusion: on dry matter basis these medicinal plants shows high nutritive value with maximum percentage of important minerals, which can be used for health care during anemic condition and as food and fodder for livestock.

Comparison in chemical compositions of the essential oil from leaves of Lippia citriodora H.B.K. plantlets produced from micro-propagation and stem cutting
M Moradi, A Mehrafarin, A Qaderi, H Naghdi Badi,
year 14, Issue 55 (9-2015)
Abstract

Background: Lemon verbena (Lippia citriodora H.B.K.) is an aromatic and medicinal plant of family Verbenaceae, which cultivated in the North region of Iran.

Objective: This comparative study was carried out on essential oil content and composition of Lippia citriodora H.B.K. from micro-propagated and rooted apical stem cutting plantlets. Methods: The micro-propagated plantlets were obtained by use of synthetic medium condition containing basal MS medium supplemented with 1 mg.l-1 BAP, 0.5 mg.l-1 IBA, 1 g.l-1 activated charcoal, 30 g.l-1 sucrose, and 7 g.l-1 agars. Pre-acclimated plantlets were transferred to the research greenhouse. To determine the essential oil content and its components in two types of plantlets, leaves of L. citriodora were collected in August 2013 before flowering stage. The essential oils were extracted by Clevenger apparatus and their constituents were determined by GC-MS.

Results: The results indicated that thirty-two components were determined in the stem cutting derived plantlets. The main components of stem cutting plantlets were geranial (13.81%), limonene (11.41%), spathulenol (11.22%), and neral (11.21%). Thirty-five components were also obtained in the micro-propagated plantlets. The main components of micro-propagated plantlets were consisted of geranial (17.26%), neral (14.48%), 6-methyl-5-hepten-2-one (10.75%), and limonene (8.93%).

Conclusion: In general, the essential oil content of stem cutting plantlets was higher than micro-propagated plantlets, while the number of compounds and amount of geranial and neral in stem cutting plantlets was lower than micro-propagated plantlets.


Influence of Drought Stress, Biofertilizers and Zeolite on Morphological Traits and Essential Oil Constituents in Dracocephalum moldavica L.
Kh Karimzadeh Asl, M Ghorbanpour , M Marefatzadeh Khameneh , M Hatami ,
year 17, Issue 67 (9-2018)
Abstract
Background: Essential oil content and composition in medicinal and aromatic plants is highly affected by both biotic and abiotic factors.
Objective: To investigate the effects of drought stress, zeolite and bio-fertilizers on morphological characteristics and essential oil constituents in Dracocephalum moldavica L.
Methods: This experiment was conducted in the form of split factorial based on randomized complete block design with three replications in two years (2014 and 2015). The factorial experimental treatment was three levels of soil moisture (90%, 60% and 30%FC) applied to main plot, while application of zeolite (0 and 2 g per kg of soil) and bio-fertilizers (control, nitroxin, phosphate barvar-2 and nitroxin×phosphate barvar-2) were applied to sub plots.
Results: Application of zeolite had the highest effect on plant height, leaf area, dry matter and flowering top branches yield (FTBY) in 90%FC and essential oil percentage and yield in 60%FC. Similarly, combination of nitroxine+phosphate barvar-2 caused maximum value of plant height, leaf area, dry matter and FTBY in 90% FC and essential oil percentage and yield in 60%FC. The GC-MS analysis of the essential oil identified 14 compounds including ester and non ester combinations. The main compounds of ester combinations were geranyl acetate and neryl acetate and the main compounds of non ester combinations were neral, geraniol and geranial. The maximum percentage of ester and non ester combinations produced in 30%FC and 60-90%FC, respectively.
Conclusion: Application of zeolite accompanied by combination of nitroxine+phosphate barvar-2 produced the highest value of examined traits in D. moldavica L.
 

Changes in the Essential Oil Content and Composition of Lippia citriodora under Vacuum Oven-drying and Pre-drying Operation
Ali Rezvani Aghdam, Hassanali Naghdi Badi, Vahid Abdossi, Reza Hajiaghaee, Seyed Ebrahim Hosseini,
year 18, Issue 72 (12-2019)
Abstract
Background: Pre-drying operations and drying methods have a significant effect on the quantity and quality of plants essential oils.
Objective: In this study, the effect of pre-drying operation and vacuum oven-drying was investigated on the essential oil content and composition of Lippia citriodora.
Method: This research was conducted as a factorial experiment in a completely randomized design (CRD) with three replications. The two studied factors were (1) pre-drying operations in two levels including pre-drying and without pre-drying operation, and also (2) drying methods in 5 levels including fresh plant, shade drying and vacuum oven-drying at 35, 45 and 55°C at 0.5 bar atmospheric pressure.  In this study, the amount of pigments and essential oil content and composition were measured.
Results: The results indicated that the highest chlorophyll content was related to treatment of vacuum oven-drying at 55 °C with a pre-drying treatment, while the highest amount of essential oil was obtained by vacuum oven-drying at 45 °C without a pre-drying operation. The highest amounts of monoterpene hydrocarbons, oxygenated monoterpenes, and geranial were obtained by drying at 55 °C, while the highest content of sesquiterpene hydrocarbons, oxygenated sesquiterpenes and neral were observed in Low-temperature drying.
Conclusion: In general, this study indicated that vacuum oven-drying at 45 °C was the best drying method for obtaining maximum content of essential oil and active components.

Investigating the effects of different cultivation media and biological and mineral fertilizers on the yield and active ingredients of ginger medicinal plant (Zingiber officinale Rosc)
Gholam Ali Akbari, Seyedeh Akram Miri, Hossein Zeinali,
year 21, Issue 84 (12-2022)
Abstract
Background: Zingiber officinale (Zingiberaceae), is a tropical plant with knotted rhizomes. Objectives: The purpose of this research was to investigate the effect of using mineral and biological fertilizers based on algae on the quantitative and qualitative traits of the ginger plant and to choose the best cultivation medium. Methods: The experimental treatments included cultivation media in four levels and fertilizers in three levels. Hydrodistilled essential oil of the Z. officinale was analyzed by GC and GC-MS. Results: The largest amount of biological yield and yield per hectare was observed in the cultivation medium of vermicompost: perlite (70: 30) without fertilizers. The maximum harvest index with an average of 0.9 was estimated in the cultivation media of manure: soil (70: 30) combined with biofertilizer, vermicompost: perlite (70: 30) combined with biofertilizer, and manure: perlite (70: 30) combined with biofertilizer, respectively. The cultivation medium of animal manure: perlite (70: 30) combined with NPK chemical fertilizer produced the largest amount of essential oil. The highest proportion of geranial was observed in the cultivation medium of vermicompost: perlite (70: 30) combined with biofertilizer. The highest percentage of α-zingiberene was observed in the cultivation medium of vermicompost: perlite (70: 30) combined with NPK chemical fertilizer. The highest percentage of neral was obtained in the main treatments of animal manure: soil (70: 30) combined with biofertilizer. Conclusion: The use of chemical and biological fertilizers combined with organic cultivation media was fruitful and productive to meet the nutritional needs for the production of effective substances in ginger.

Anti-caries efficacy of the medicinal plant Miswak (Salvadora persica L.) and propolis Varnish on extracted human Premolar and Molar teeth
Ali Derakhshani, Sahereh Soltani, Parastoo Zarghami Moghaddam, Samaneh Mollazadeh, Manouchehr Teymouri,
year 23, Issue 90 (5-2024)
Abstract
Background: Tooth decay is the result of the activity of cariogenic microorganisms that live in dental plaque. Among these, Streptococcus mutans is the main factor in the development and progression of dental tissue destruction. Objective: The study aims to investigate the anti-caries potential of a natural compound-based varnish against S. mutans on a set of dental specimens. Methods: Fifty-four extracted human molar and premolar specimens were procured from an outpatient clinic of pediatric dentistry, Bojnurd, Iran. These teeth were cast in a silicon putty and treated with a varnish made of propolis and miswak (from twigs of Salvadora persica L. tree) ethanolic extracts, followed by incubation in a harsh acidic medium (pH 2). Then, the density of samples, antibacterial activity, buffering capacity, and fluoride release were respectively investigated using radiography, disc diffusion and microdilution tests, and pH drop challenge in acetic acid solution (PH 4). Results: Overall, the varnishes protected the dental samples from dissolution in the acidic medium, as evidenced by the radiographic examination. The varnishes also exhibited remarkable antibacterial activity (inhibition zones of 3.2 ± 0.8 mm and 2.0 ± 0.2 mm for miswak and propolis varnish films), a considerable buffering capacity (pH increase from 4 to 7 within 5 minutes), and released fluoride (mean 85 µmoles). Conclusion: The application of natural compound-based varnish is strongly recommended for dental protection.

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