Diurnal Variation of Essential of the Oil Components of Pycnocycla spinosa Decne. ex Boiss

Asghari, Gholamreza; Gholamali, Houshfar; Mahmoudi, Zohreh; Asghari, Matin

doi:10.17795/jjnpp-12229

Cited by 14 publications

(11 citation statements)

References 23 publications

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“…However many difficulties are present when attempting to quantify compounds in a plant because their contents are affected by many variables. For example, it is common to observe diurnal variations in plant secondary chemical components [ 19 ] as well as climatic, physiological and environmental variations [ 20 , 21 ]. This may be a problem if quantification of compounds is required with many replications and thus needing numerous amounts of plant samples.…”

Section: Discussionmentioning

confidence: 99%

Quantification of santonin in eight species of Artemisia from Kazakhstan by means of HPLC-UV: Method development and validation

et al. 2017

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Santonin, a powerful anthelmintic drug that was formely used to treat worms, is Artemisia cina's main constituent. However, due to its toxicity to humans, it is no longer in use. Kazakhstan is looking to introduce this plant as an anthelmintic drug for veterinary purposes, despite the known toxic properties of the santonin. The objective of this study was to develop a fast and specific method for the identification of santonin and its precise quantitation using HPLC-UV in order to avoid unnecessary intoxication, which is paramount for the development of veterinary medicines. The results obtained showed that santonin appears at around 5.7 minutes in this very reliable HPLC method. The validation of the method was performed by the investigation of parameters such as precision, accuracy, reproducibility and recovery. The method was used to identify and quantify santonin in leaves of A. scoparia, A. foetida, A. gmelinni, A. schrenkiana, A. frigida, A. sublesingiana, A terra-albae, and A. absinthium from Kazakhstan as well as in three different extracts of leaves of A. cina. This study has provided a faster and simpler method for the identification and quantification of this compound in other species of Artemisia of economic importance.

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Section: Discussionmentioning

confidence: 99%

Quantification of santonin in eight species of Artemisia from Kazakhstan by means of HPLC-UV: Method development and validation

et al. 2017

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“…The light wavelength and intensity well as the exposure time are essential features for the biosynthesis of metabolites in plant cells [ 42 ]. The flux of terpenes found in Citrus sinensis (L.) Osbeck, C .…”

Section: Resultsmentioning

confidence: 99%

“…ex Boiss. [ 42 ], and high temperatures influenced the release of trans -caryophyllene [ 45 ]. Sesquiterpenes had the highest levels at 6:00 pm in August, and the main compound of the essential oils from leaves of Cistus monspeliensis L. was caryophyllene oxide [ 46 ].…”

Section: Resultsmentioning

confidence: 99%

Non-Oxygenated Sesquiterpenes in the Essential Oil of Copaifera langsdorffii Desf. Increase during the Day in the Dry Season

et al. 2016

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The present study aimed to evaluate the effect of seasonal and diurnal events on the chemical profile of the essential oil obtained from the leaves of Copaifera langsdorffii Desf. This study was performed in a Brazilian savanna named Cerrado. We identified the best harvesting period for obtaining the highest amount of compounds used for commercial and industrial purposes. The chemical profile of the essential oils was evaluated by GC-FID and GC-MS, and the results were assessed through multivariate analyses. The data showed that the time of day and seasonal variations affect the quality of the essential oil obtained. Leaves harvested at the end of the day (5:00 pm) in the dry season resulted in richer essential oils with higher amounts of non-oxygenated sesquiterpenes. To the best of our knowledge, environmental conditions induce metabolic responses in the leaves of C. langsdorffii, which changes the patterns of sesquiterpene production. Therefore, these factors need to be considered to obtain better concentrations of bioactive compounds for pharmacological studies.

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“…Single or a combination of environmental factors influence the content of essential oil and also its composition. In general, temperature and light fluctuation throughout the day affect the essential oil content and composition in aromatic crops Asghari et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of harvesting time and standardization of distillation duration for higher essential oil content and quality in German chamomile (Chamomilla recutita L.)

Kumar

Suryavanshi

Padalia

et al. 2021

J Spices Arom Crops

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Essential oil yield and composition in aromatic crops might be affected by genetic, agronomical and environmental factors but till date there is no clear information about the harvesting time and distillation for higher essential oil content without affecting quality. The current study was carried out to evaluate harvesting of chamomile flowers without herb and with herb part at three different times (6 A.M., 12 P.M. and 6 P.M.) and four distillation treatments (3 h, 4 h, 5 h & 6 h) for dried chamomile flowers. Results indicated that essential oil content was more in chamomile flowers without herb (0.15-0.18%) as compared to flowers with herb (0.06-0.09%). Essential oil content in chamomile flowers without herb was found statistically at par at harvest time of 12 P.M. (0.18%) and 6 P.M. (0.18%) and significantly higher than harvesting time of 6 A.M. (0.15%). Essential oil of chamomile flowers without herb contained maximum α-bisabolol oxide-B, (Z)-spiroether, and chamazulene at 12 P.M. and 6 P.M. while, α-bisabolone oxide-A and α-bisabolol oxide-A were maximum at 6 A.M. and (E)-β-farnesene was more at 12 P.M. Similarly, in distillation experiment, higher oil content was observed in chamomile dried flowers which were hydro-distilled for 6 h (1.20%) compared to other hydro-distillation durations. Marker compounds i.e. α-bisabolol oxide-A, α-bisabolone oxide-A, α-bisabolol oxide-B, (E)-β-farnesene and chamazulene were more at 5 h and 6 h distillation duration while (Z)-spiroether was more at 3 h distillation duration. The present study showed that in order to obtain higher essential oil, flowers without herb harvested at 12 P.M or 6 P.M. should be subjected to 5-6 h hydro-distillation.

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Diurnal Variation of Essential of the Oil Components of Pycnocycla spinosa Decne. ex Boiss

Cited by 14 publications

References 23 publications

Quantification of santonin in eight species of Artemisia from Kazakhstan by means of HPLC-UV: Method development and validation

Quantification of santonin in eight species of Artemisia from Kazakhstan by means of HPLC-UV: Method development and validation

Non-Oxygenated Sesquiterpenes in the Essential Oil of Copaifera langsdorffii Desf. Increase during the Day in the Dry Season

Evaluation of harvesting time and standardization of distillation duration for higher essential oil content and quality in German chamomile (Chamomilla recutita L.)

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