scholarly journals The Influence of Biochar and Solid Digestate on Rose-Scented Geranium (Pelargonium graveolens L’Hér.) Productivity and Essential Oil Quality

Agronomy ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 260 ◽  
Author(s):  
Alessandro Calamai ◽  
Enrico Palchetti ◽  
Alberto Masoni ◽  
Lorenzo Marini ◽  
David Chiaramonti ◽  
...  
Keyword(s):  
Essential Oil ◽  
Climate Adaptation ◽  
Oil Quality ◽  
Dry Weight ◽  
Chemical Components ◽  
Growth Media ◽  
Anaerobic Digestate ◽  
Pelargonium Graveolens ◽  
Positive Effects ◽  
Leaf Chlorosis

In recent years, biochar has generated global interest in the areas of sustainable agriculture and climate adaptation. The main positive effects of biochar were observed to be the most remarkable when nutrient-rich feedstock was used as the initial pyrolysis material (i.e., anaerobic digestate). In this study, the influence of solid anaerobic digestate and biochar that was produced by the slow pyrolysis of solid digestate was evaluated by comparing the differences in the crop growth performances of Pelargonium graveolens. The experiment was conducted in a greenhouse while using three different growth media (i.e., solid digestate, biochar, and vermiculite). The results indicated that: (i) the pyrolysis of solid digestate caused a reduction in the bulk density (−52%) and an increase in the pH (+16%) and electrical conductivity (+9.5%) in the derived biochar; (ii) the best crop performances (number of leaves, number of total branches, and plant dry weight) were found using biochar, particularly for plant dry weight (+11.4%) and essential oil content (+9.4%); (iii) the essential oil quality was slightly affected by the growth media; however, the main chemical components were found within the acceptable range that was set by international standard trade; and, iv) biochar induced the presence of leaf chlorosis in Pelargonium graveolens.

scholarly journals Chemical Characterization and Antidiabetic Activity of Essential Oils from Pelargonium graveolens Leaves

2021 ◽  
Vol 9 (1) ◽  
pp. 109-113
Author(s):  
Javed Ahamad ◽  
Subasini Uthirapathy
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Chemical Constituents ◽  
Chemical Characterization ◽  
Study Finding ◽  
Antidiabetic Activity ◽  
Chemical Components ◽  
Diabetic Patients ◽  
Pelargonium Graveolens

Pelargonium graveolens (Geranium) is a source of the finest quality of fragrance and its essential oils are used as antibacterial, and antifungal agents. The aim of the current research is to determine chemical constituents in the essential oil of P. graveolens by GC-MS and evaluate its antidiabetic activity via α-glucosidase inhibition assay. The chemical composition of P. graveolens essential oil was determined by GC/MS and its antidiabetic activity was assessed through inhibition of α-glucosidase enzyme in in-vitro models. GC-MS analysis determines 36 chemical components in the essential oil of P. graveolens leaves, and citronellyl isovalerate (10.41 %), menthol (9.61 %), linalool (8.63 %), p-menthone (6.31 %), and geranyl tiglate (4.99 %) were recorded as major constituents. The essential oil of P. graveolens leaves showed concentration dependant inhibition of α-glucosidase enzyme ranging from 28.13±1.41 to 74.24±2.53 µg/mL for concentration ranging from 31.25 to 1000 µg/mL. The IC50 values for of P. graveolens and acarbose were found as 93.72±4.76 and 80.4±2.17 µg/mL, respectively against the α-glucosidase enzyme. The study finding explores the chemical components of P. graveolens growing in the Iraqi Kurdistan region and scientifically supported its possible use in diabetic patients for controlling postprandial hyperglycemia.

scholarly journals Influence of Some Rhizobium Strains on Chickpea: Nodulation, dry matter yield and Nitrogen uptake

1970 ◽  
Vol 27 (2) ◽  
pp. 61-64 ◽  
Author(s):  
ARM Solaiman ◽  
MS Talukder ◽  
MG Rabbani
Keyword(s):  
Nitrogen Fixation ◽  
N Uptake ◽  
Dry Weight ◽  
Growth Media ◽  
Standard Pattern ◽  
Rhizobium Inoculation ◽  
Positive Effects ◽  
Rhizobium Strains ◽  
Loam Soil ◽  
Positive Correlations

Four strains of Rhizobium were isolated from chickpea (Cicer arietinum) to characterize and observe the effectiveness on host legumes. In a laboratory study, Rhizobium strains showed standard pattern of reactions in respect of growth rate, colony characteristics and acid/alkali production on different growth media. The effect of Rhizobium inoculation on nodulation, growth and nitrogen fixation of chickpea was assessed by pot experiment on clay loam soil. Inoculation treatments comprised of Rhizobium strains CR1, CR2, CR3 and CR4. Rhizobium inoculation had significant positive effects on nodulation, growth and nitrogen fixation of the crop. Among the Rhizobium strains CR2 and CR3 performed better than CR1 and CR4 at 50% flowering stage of the crop. There were high positive correlations among the number and dry weight of nodules, N content and N uptake by shoot of chickpea. Keywords : Rhizobium; Nodulation; Growth; Nitrogen fixation; Chickpea DOI: http://dx.doi.org/10.3329/bjm.v27i2.9174 BJM 2010; 27(2): 61-64

scholarly journals PRODUCTIVITY AND OIL QUALITY OF THYMUS VULGARIS L. UNDER GROWTH PROMOTERS AND SOILLESS CULTURE CONDITIONS

2020 ◽  
Vol 21 (supplement 1) ◽  
Author(s):  
Fatma S.Aboud ◽  
M. H. Mohammed ◽  
Nagwa M. ahmed ◽  
S. H. Ahmed
Keyword(s):  
Ascorbic Acid ◽  
Essential Oil ◽  
Oil Quality ◽  
Culture Conditions ◽  
Growth And Yield ◽  
Thymus Vulgaris ◽  
Cost Ratio ◽  
Positive Effects ◽  
Mixture Treatment ◽  
Oil Percentage

Thyme (Thymus vulgaris L.) belongs to the lamiaceae family. It is characterized by its medicinal and economic values. Thymus is grown worldwide for cosmetic and medical use. Plant bio-stimulants are classified as substances which have positive effects on growth and productivity of plants. Bio-stimulants are obtained naturally from various economically and environmentally viable sources. The current experiment aimed to investigate the response of thymus physical and chemical properties to the different types and concentrations of bio-stimulators under soil less culture conditions for two successive seasons 2019 and 2020. Thymus seedlings were planted in pots filled with mixed media of perlite: sand (1:1v/v). Plants were sprayed with aqueous solution of ascorbic acid (1 and 2g/l), aspartic acids (500 and 1000 ppm) and dry yest (2 and 4g/l) and combination of them compared with control. The herp was harvested in mid- July (First cutting) and first week of October (second cut). Growth and yield characters were measured. The essential oil percentage was determined and analyzed by GC in both cuts from the fresh herb. Results showed that, spraying of mixtures of ascorbic acid (2g/l), aspartic acids (1000 ppm) and yeast (4g/l)) significantly increased yield, total carbohydrates, total phenols, total pigments, essential oil percentage and yield as well as its NPK content characters and components of essential oil high contents of thymol, ? and ? –Pinene during both cuts and for both seasons. Economic evaluation was carried out by calculating with the highest return in the mixture treatment. It is clear that all treatments are economically feasible however, one can find that the maximum return or profit comes from mixture treatments where the benefit to cost ratio were 3.99 and 3.9 for Mix2 and Mix1 respectively.

scholarly journals A Portable Steam Distillation Unit for Essential Oil Crops

1992 ◽  
Vol 2 (4) ◽  
pp. 473-476 ◽  
Author(s):  
B.H. Alkire ◽  
J.E. Simon
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Diesel Fuel ◽  
Steam Distillation ◽  
Oil Quality ◽  
Dry Weight ◽  
Distillation Unit ◽  
Oil Crops ◽  
Commercial Farms ◽  
Entire Apparatus

An experimental steam distillation unit has been designed, built, and tested for the extraction of essential oils from peppermint and spearmint. The unit, using a 130-gal (510-liter) distillation tank, is intermediate in size between laboratory-scale extractors and commercial-sized distilleries, yet provides oil in sufficient quantity for industrial evaluation. The entire apparatus-a diesel-fuel-fired boiler, extraction vessel, condenser, and oil collector-is trailer-mounted, making it transportable to commercial farms or research stations. Percentage yields of oil per dry weight from the unit were slightly less than from laboratory hydrodistillations, but oil quality and terpene composition were similar.

scholarly journals Su Tutucu Polimer (SAP) Uygulamalarının Anadolu Sığla Ağacı (Liquidambar orientalis MİLL.) ve Biberiye (Rosmarinus officinalis L.) Türlerinde Bitki Gelişimi Üzerine Etkisi

2020 ◽  
Vol 8 (3) ◽  
pp. 721
Author(s):  
Hülya Akat
Keyword(s):  
Plant Growth ◽  
Growth Parameters ◽  
Dry Weight ◽  
Rosmarinus Officinalis ◽  
Growth Media ◽  
Super Absorbent Polymer ◽  
Positive Effects ◽  
Rosmarinus Officinalis L ◽  
Absorbent Polymer ◽  
Different Doses

Climate change caused by global warming and the increase in consumption due to rapid population growth are threatened its existence by causes decrease of water from natural resources. Since most of the usable water in the World is evaluated in agriculture, the water needs of plants need to be met in the most accurate and economical way. In this context, super absorbent polymer (SAP) application is one of the methods that provide efficient and economical usage of water. In this research, different doses of super absorbent polymer SAP A200 [0% (control), 0.2%, 0.4% ve 0.6% v/v] applications were applied in conventional (soil) and growth media conditions [peat, perlite and peat:perlite (1:1) v/v]. It was aimed to determine the effects of SAP A200 doses on plant growth of Anatolian Sweetgum Tree (Liquidambar orientalis Mill.) and Rosemary (Rosmarinus officinalis L.) species. The study was established with randomized plot design with 3 replications. In order to determine plant growth characteristics, plant height, stem diameter, root length, root thickness, fresh and dry weight values of roots and shoots were determined. For the two species used in the study, it was observed that all SAP doses had positive effects on plant growth parameters and the best results were obtained in 0.6 % SAP A200 application. It was determined that plant growth values were higher in all growth medias except soil and the best results were obtained in peat: perlite media.

Biomass Yield, Essential Oil Yield and Oil Quality of Rose-scented Geranium (Pelargonium graveolens L.), Intercropped with Vegetables

2011 ◽  
Vol 6 (12) ◽  
pp. 830-839 ◽  
Author(s):  
Rajesh Kumar Verma ◽  
Ram SwaroopVer ◽  
Amit Chauhan ◽  
Anand Singh ◽  
Laiq-ur Rahman ◽  
...  
Keyword(s):  
Essential Oil ◽  
Biomass Yield ◽  
Oil Quality ◽  
Oil Yield ◽  
Pelargonium Graveolens ◽  
Essential Oil Yield

scholarly journals On the Health Benefits vs. Risks of Seaweeds and Their Constituents: The Curious Case of the Polymer Paradigm

Marine Drugs ◽  
2021 ◽  
Vol 19 (3) ◽  
pp. 164
Author(s):  
João Cotas ◽  
Diana Pacheco ◽  
Glacio Souza Araujo ◽  
Ana Valado ◽  
Alan T. Critchley ◽  
...  
Keyword(s):  
Brown Seaweed ◽  
Dry Weight ◽  
Sargassum Muticum ◽  
Human Nutrition ◽  
Health Impacts ◽  
Gracilaria Gracilis ◽  
Red Seaweeds ◽  
Positive Effects ◽  
Negative Impacts ◽  
Biomedical Potential

To exploit the nutraceutical and biomedical potential of selected seaweed-derived polymers in an economically viable way, it is necessary to analyze and understand their quality and yield fluctuations throughout the seasons. In this study, the seasonal polysaccharide yield and respective quality were evaluated in three selected seaweeds, namely the agarophyte Gracilaria gracilis, the carrageenophyte Calliblepharis jubata (both red seaweeds) and the alginophyte Sargassum muticum (brown seaweed). It was found that the agar synthesis of G. gracilis did not significantly differ with the seasons (27.04% seaweed dry weight (DW)). In contrast, the carrageenan content in C. jubata varied seasonally, being synthesized in higher concentrations during the summer (18.73% DW). Meanwhile, the alginate synthesis of S. muticum exhibited a higher concentration (36.88% DW) during the winter. Therefore, there is a need to assess the threshold at which seaweed-derived polymers may have positive effects or negative impacts on human nutrition. Furthermore, this study highlights the three polymers, along with their known thresholds, at which they can have positive and/or negative health impacts. Such knowledge is key to recognizing the paradigm governing their successful deployment and related beneficial applications in humans.

Linalool-rich essential oil quality variants obtained from irradiated stem nodes inLippia alba

2002 ◽  
Vol 17 (2) ◽  
pp. 127-132 ◽  
Author(s):  
J. R. Bahl ◽  
Shweta Sinha ◽  
A. A. Naqvi ◽  
R. P. Bansal ◽  
A. K. Gupta ◽  
...  
Keyword(s):  
Essential Oil ◽  
Oil Quality

scholarly journals Fertilization and Colors of Plastic Mulch Affect Biomass and Essential Oil of Sweet-Scented Geranium

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Anderson de Carvalho Silva ◽  
Arie Fitzgerald Blank ◽  
Wallace Melo dos Santos ◽  
Paloma Santana Prata ◽  
Péricles Barreto Alves ◽  
...  
Keyword(s):  
Essential Oil ◽  
Soil Cover ◽  
Mineral Fertilizer ◽  
Cattle Manure ◽  
Plastic Mulch ◽  
Pelargonium Graveolens ◽  
Food Industries ◽  
Black Plastic ◽  
Soap Perfume

Sweet-scented geranium (Pelargonium graveolensL’Hér), a plant belonging to the Geraniaceae family, has medicinal and aromatic properties and is widely used in the cosmetic, soap, perfume, aromatherapy, and food industries. The aim of this study was to evaluate the influence of fertilization and the use of different colors of plastic mulch on sweet-scented geranium biomass and essential oil. Three colors of plastic mulch (black, white, and silver-colored) and a control without plastic mulch were assessed along with three fertilizers (20,000 L·ha−1of cattle manure; 1,000 kg·ha−1of NPK 3-12-6; and 20,000 L·ha−1of cattle manure + 1,000 kg·ha−1of NPK 3-12-6 fertilizer) and a control without fertilizer. The absence of a soil cover negatively influenced the agronomical variables, while coverage with plastic mulch was associated with increased biomass. The use of fertilizer had no effect on the evaluated agronomic variables. When cattle manure and NPK 3-12-6 were used together, combined with white or black plastic mulch, the highest yields of essential oil were obtained. For the silver-colored plastic mulch, higher amounts of essential oil (6,9-guaiadien) were obtained with mineral fertilizer.

Research Progress of Essential Oil as a New Complementary Therapy in the Treatment of Depression

2021 ◽  
Vol 21 ◽  
Author(s):  
Xinli Liang ◽  
Xinli Wang ◽  
Guowei Zhao ◽  
Xiaoying Huang ◽  
Xiqiang Xu ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Mental Disease ◽  
Complementary Therapy ◽  
Scientific Basis ◽  
Research Progress ◽  
Chemical Components ◽  
Physical And Mental Health ◽  
Plant Essential Oils ◽  
Treatment Of Depression

: Depression is a mood disorder or affective disorder disease with depression as the main symptom. It has become a kind of mental disease that cannot be ignored in the world that seriously endangers human physical and mental health. Antidepressants commonly used in clinics generally have some defects including slow action, unremarkable effects and large side-effects. Therefore, there has a huge developing space for the research of new and effective therapeutic drugs to supplement or replace traditional drugs. Essential oil has obvious advantages in the treatment of depression and other emotional diseases, its aromatic odor can directly stimulate the olfactory nerves, and the lipophilic small- molecular compounds can cross the blood-brain barrier easily, to play its regulatory role of releasing of neurotransmitters and hormones related to depression, or adjusting the expression of brain-derived neurotrophic factor and proinflammatory cytokines. The pathogenesis of depression and the problems in traditional medication was illustrated, the research on the antidepressant effects and mechanism of essential oils in recent years was summarized and the antidepressant chemical components in plant essential oils were reviewed in this article. It could provide scientific basis for essential oil to be a new choice for relieving depression and treating depression.

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