Impact evaluation of growth stage and species on morpho-physiological traits and bioactive constituent of essential oil in Ocimum through multi-year experiment

2020 ◽  
Vol 158 ◽  
pp. 113052
Author(s):  
Amarjeet S. Thounaojam ◽  
Amar A. Sakure ◽  
Haresh L. Dhaduk ◽  
Sushil Kumar ◽  
Jigar G. Mistry
Keyword(s):  
Essential Oil ◽  
Impact Evaluation ◽  
Growth Stage ◽  
Physiological Traits ◽  
Bioactive Constituent

Influence of Plant Growth Stage on the Essential Oil Content and Composition in Davana (Artemisia pallensWall.)

1999 ◽  
Vol 47 (1) ◽  
pp. 254-258 ◽  
Author(s):  
Gopal R. Mallavarapu ◽  
Raghavendra N. Kulkarni ◽  
Kuppusamy Baskaran ◽  
Laxmi Rao ◽  
Srinivasaiyer Ramesh
Keyword(s):  
Essential Oil ◽  
Plant Growth ◽  
Oil Content ◽  
Growth Stage

IMPACT OF SEASON AND HARVEST FREQUENCY ON BIOMASS AND ESSENTIAL OIL YIELDS OF ARTEMISIA HERBA-ALBA CULTIVATED IN SOUTHERN TUNISIA

2009 ◽  
Vol 45 (4) ◽  
pp. 499-508 ◽  
Author(s):  
HEDI MIGHRI ◽  
AHMED AKROUT ◽  
JOSEPH CASANOVA ◽  
FELIX TOMI ◽  
MOHAMED NEFFATI
Keyword(s):  
Essential Oil ◽  
Oil Content ◽  
Growth Stage ◽  
Arid Zone ◽  
Experimental Period ◽  
The Other ◽  
Flowering Stage ◽  
Harvest Frequency ◽  
Dry Biomass ◽  
Essential Oil Yield

SUMMARYArtemisia herba-alba Asso has been successfully cultivated in the Tunisian arid zone. However, information regarding the effects of the harvest frequency on its biomass and essential oil yields is very limited. In this study, the effects of three different frequencies of harvesting the upper half of the A. herba-alba plant tuft were compared. The harvest treatments were: harvesting the same individual plants at the flowering stage annually; harvesting the same individual plants at the full vegetative growth stage annually and harvesting the same individual plants every six months. Statistical analyses indicated that all properties studied were affected by the harvest frequency. Essential oil yield, depended both on the dry biomass and its essential oil content, and was significantly higher from plants harvested annually at the flowering stage than the other two treatments. The composition of the β- and α-thujone-rich oils did not vary throughout the experimental period.

scholarly journals Microencapsulated Caraway Essential Oil Affects Initial Growth of Maize Cultivars

Molecules ◽  
2021 ◽  
Vol 26 (16) ◽  
pp. 5059
Author(s):  
Katarzyna Możdżeń ◽  
Agnieszka Krajewska ◽  
Jan Bocianowski ◽  
Beata Jop ◽  
Agnieszka Synowiec
Keyword(s):  
Essential Oil ◽  
Chlorophyll A ◽  
Chlorophyll A Fluorescence ◽  
Growth Stage ◽  
Leaf Growth ◽  
Fluorescence Emission ◽  
Initial Growth ◽  
Fluorescence Emission Spectra ◽  
Significant Drop ◽  
Maize Cultivars

Caraway (Carum carvi L.) essential oil is a candidate for botanical herbicides. A hypothesis was formulated that the sand-applied maltodextrin-coated caraway oil (MCEO) does not affect the growth of maize (Zea mays L.). In the pot experiment, pre-emergence application of five doses of MCEO was tested on four maize cultivars up to the three-leaf growth stage. The morphological analyses were supported by the measurements of relative chlorophyll content (SPAD), two parameters of chlorophyll a fluorescence, e.g., Fv/Fm and Fv/F0, and fluorescence emission spectra. The analyzed MCEO contained 6.5% caraway EO with carvone and limonene as the main compounds, constituting 95% of the oil. The MCEO caused 7-day delays in maize emergence from the dose of 0.9 g per pot (equal to 96 g m−2). Maize development at the three-leaf growth stage, i.e., length of roots, length of leaves, and biomass of shoots and leaves, was significantly impaired already at the lowest dose of MCEO: 0.4 g per pot, equal to 44 g m−2. A significant drop of both chlorophyll a fluorescence parameters was noted, on average, from the dose of 0.7 g per pot, equal to 69 g m−2. Among the tested cultivars, cv. Rywal and Pomerania were less susceptible to the MCEO compared to the cv. Kurant and Podole. In summary, maize is susceptible to the pre-emergence, sand-applied MCEO from the dose of 44 g m−2.

scholarly journals Changes in Essential Oil Content and Composition of Salvia Limbata C.A. Mey at Different Growth Stages and Altitudes

2020 ◽  
Author(s):  
Maryam Saffariha ◽  
Hossein Azarnivand ◽  
Mohammad Ali Zare Chahouki ◽  
Ali Tavili ◽  
Samad Nejad Ebrahimi ◽  
...  
Keyword(s):  
Essential Oil ◽  
Growth Stage ◽  
Volatile Oil ◽  
Growth Stages ◽  
Harvest Time ◽  
Total Volatile ◽  
Oil Composition ◽  
Optimal Harvest ◽  
Germacrene D ◽  
Different Growth Stages

Abstract BackgroundThe present study investigates the effect of growth stage (vegetative, flowering and seed ripening) and altitude (1500, 2000 and 2500 m above sea level) on the content and chemical composition of S. limbata essential oil which belongs to Lamiaceae family.ResultsAccording to the oil analysis, 28 components representing 96.5% to 99.7% of the total volatile oil composition were characterized. The main compounds of S. limbata oils were α-pinene (14.7-38.7%), β-pinene (12.5-26.2%), allo-aromadendrene (9.2-21.7%), germacrene D (4.2-8.3%), bicyclogermacrene (6.5-14.5 %), and spathulenol (7.5-25.4 %).DiscussionThe obtained results showed that the content and constituents of S. limbata essential oil strongly depend on the growth stage and altitude. Our findings revealed that the vegetative stage at 1500 m is the optimal harvest time to obtain the highest content of oil yield. Results of the current study helps to find the optimum situation to gain the highest content of S. limbata essential oil but more researches are needed.

Traditional Uses, Phytochemistry, and Pharmacological Properties of Zingiber officinale Essential Oil and Extracts

2022 ◽  
pp. 649-671
Author(s):  
Kaliyaperumal Ashokkumar ◽  
Muthusamy Murugan ◽  
M. K. Dhanya ◽  
Thiravidamani Sathyan ◽  
Surya Raj ◽  
...  
Keyword(s):  
Essential Oil ◽  
Zingiber Officinale ◽  
Future Research ◽  
South East Asia ◽  
Research Needs ◽  
Bioactive Constituents ◽  
Bioactive Substances ◽  
Pharmacological Studies ◽  
Bioactive Constituent ◽  
India And China

Ginger (Zingiber officinale) has been traditionally employed in south East Asia as well as India and China for treatment of nausea, asthma, fever, vomiting, cough, constipation, pain, arthritis, inflammation, etc. This chapter discusses the phytochemical composition and pharmacological studies of ginger extracts, ginger essential oil (GEO), and active bioactive constituents. The essential oil of fresh and dry ginger was ranged between 0.2% - 2.62% and 0.72% - 4.17% respectively. The bioactive constituent zingiberene, β-sesquiphellandrene, curcumene, β-bisabolene, β-farnesene, camphene, and gingerol and shogal are the major constituents in ginger extracts. These compounds are chief bioactive substances responsible for pharmacological activities such antioxidant, antidiabetic, anticancer, anticoagulant, antiradiation, anti-inflammatory, gastrointestinal, antimicrobial, cardiovascular, anti-obesity, and weight loss effects. Future research needs to investigate the suitable duration, maximum dosage of ginger, concerns of overdosage, and its side effects in animal models and humans.

scholarly journals Changes in Essential Oil Components of Perilla (Perilla ocymoides L.) Leaves in Growth Stage.

2000 ◽  
Vol 47 (6) ◽  
pp. 470-472 ◽  
Author(s):  
Keiichi WATANABE ◽  
Kiyokazu ASADA ◽  
Akira TATEISHI ◽  
Hiroaki INOUE ◽  
Tadayoshi NAGASAKA
Keyword(s):  
Essential Oil ◽  
Growth Stage ◽  
Oil Components

Effect of growth stage on the content and composition of the essential oil and phenolic fraction of sweet marjoram (Origanum majorana L.)

2009 ◽  
Vol 30 (3) ◽  
pp. 395-402 ◽  
Author(s):  
Ibtissem Hamrouni Sellami ◽  
Emna Maamouri ◽  
Thouraya Chahed ◽  
Wissem Aidi Wannes ◽  
Mohamed Elyes Kchouk ◽  
...  
Keyword(s):  
Essential Oil ◽  
Growth Stage ◽  
Phenolic Fraction ◽  
Origanum Majorana

Traditional Uses, Phytochemistry, and Pharmacological Properties of Zingiber officinale Essential Oil and Extracts

2020 ◽  
pp. 62-84
Author(s):  
Kaliyaperumal Ashokkumar ◽  
Muthusamy Murugan ◽  
M. K. Dhanya ◽  
Thiravidamani Sathyan ◽  
Surya Raj ◽  
...  
Keyword(s):  
Essential Oil ◽  
Zingiber Officinale ◽  
Future Research ◽  
South East Asia ◽  
Research Needs ◽  
Bioactive Constituents ◽  
Bioactive Substances ◽  
Pharmacological Studies ◽  
Bioactive Constituent ◽  
India And China

Ginger (Zingiber officinale) has been traditionally employed in south East Asia as well as India and China for treatment of nausea, asthma, fever, vomiting, cough, constipation, pain, arthritis, inflammation, etc. This chapter discusses the phytochemical composition and pharmacological studies of ginger extracts, ginger essential oil (GEO), and active bioactive constituents. The essential oil of fresh and dry ginger was ranged between 0.2% - 2.62% and 0.72% - 4.17% respectively. The bioactive constituent zingiberene, β-sesquiphellandrene, curcumene, β-bisabolene, β-farnesene, camphene, and gingerol and shogal are the major constituents in ginger extracts. These compounds are chief bioactive substances responsible for pharmacological activities such antioxidant, antidiabetic, anticancer, anticoagulant, antiradiation, anti-inflammatory, gastrointestinal, antimicrobial, cardiovascular, anti-obesity, and weight loss effects. Future research needs to investigate the suitable duration, maximum dosage of ginger, concerns of overdosage, and its side effects in animal models and humans.

The Bioactive Essential Oil of Heracleum sphondylium L. subsp. ternatum (Velen.) Brummitt

2003 ◽  
Vol 58 (3-4) ◽  
pp. 195-200 ◽  
Author(s):  
Gökalp İşcan ◽  
Fatih Demirci ◽  
Mine Kürkçüoǧlu ◽  
Merih Kıvanç ◽  
K. Hüsnü Can Başer
Keyword(s):  
Antimicrobial Activity ◽  
Essential Oil ◽  
Agar Diffusion ◽  
Octyl Acetate ◽  
Heracleum Sphondylium ◽  
Bioactive Constituent ◽  
Microdilution Broth

The essential oil of Heracleum sphondylium L. subsp. ternatum (Velen.) Brummit (Umbelliferae) was isolated from crushed seeds by means of hydrodistillation and analyzed by GC and GC/MS. Major components were identified as 1-octanol (50.3%), octyl butyrate (24.6%), and octyl acetate (7.3%). Furthermore, antimicrobial activity of the oil was evaluated using microdilution broth and agar diffusion methods. The bioactive constituent of the essential oil was determined as 1-octanol by using a bioautography assay.

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