scholarly journals Simultaneous Determination of 78 Compounds of Rhodiola rosea Extract by Supercritical CO2-Extraction and HPLC-ESI-MS/MS Spectrometry

2021 ◽  
Vol 2021 ◽  
pp. 1-16
Author(s):  
Alexander M. Zakharenko ◽  
Mayya P. Razgonova ◽  
Konstantin S. Pikula ◽  
Kirill S. Golokhvast
Keyword(s):  
Supercritical Co2 ◽  
Biologically Active ◽  
Rhodiola Rosea ◽  
Supercritical Co2 Extraction ◽  
Active Components ◽  
Glucaric Acid ◽  
Experimental Conditions ◽  
Target Analytes ◽  
Trimethyl Ether

The plant Rhodiola rosea L. of family Crassulaceae was extracted using the supercritical CO2-extraction method. Several experimental conditions were investigated in the pressure range of 200–500 bar, with the used volume of cosolvent ethanol in the amount of 1% in the liquid phase at a temperature in the range of 31–70°C. The most effective extraction conditions are pressure 350 bar and temperature 60°C. The extracts were analyzed by HPLC with MS/MS identification. 78 target analytes were isolated from Rhodiola rosea (Russia) using a series of column chromatography and mass spectrometry experiments. The results of the analysis showed a spectrum of the main active ingredients Rh. rosea: salidroside, rhodiolosides (B and C), rhodiosin, luteolin, catechin, quercetin, quercitrin, herbacetin, sacranoside A, vimalin, and others. In addition to the reported metabolites, 29 metabolites were newly annotated in Rh. rosea. There were flavonols: dihydroquercetin, acacetin, mearnsetin, and taxifolin-O-pentoside; flavones: apigenin-O-hexoside derivative, tricetin trimethyl ether 7-O-hexosyl-hexoside, tricin 7-O-glucoronyl-O-hexoside, tricin O-pentoside, and tricin-O-dihexoside; flavanones: eriodictyol-7-O-glucoside; flavan-3-ols: gallocatechin, hydroxycinnamic acid caffeoylmalic acid, and di-O-caffeoylquinic acid; coumarins: esculetin; esculin: fraxin; and lignans: hinokinin, pinoresinol, L-ascorbic acid, glucaric acid, palmitic acid, and linolenic acid. The results of supercritical CO2-extraction from roots and rhizomes of Rh. rosea, in particular, indicate that the extract contained all biologically active components of the plant, as well as inert mixtures of extracted compositions.

Determination of the biologically active components of the rhizomes of Rhodiola rosea

1991 ◽  
Vol 27 (3) ◽  
pp. 276-279 ◽  
Author(s):  
A. A. Kur'yanov ◽  
L. T. Bondarenko ◽  
V. A. Kurkin ◽  
G. G. Zapesochnaya ◽  
A. A. Dubichev ◽  
...  
Keyword(s):  
Biologically Active ◽  
Rhodiola Rosea ◽  
Active Components

scholarly journals Comparative Analysis of Far East Sikhotinsky Rhododendron (Rh. sichotense) and East Siberian Rhododendron (Rh. adamsii) Using Supercritical CO2-Extraction and HPLC-ESI-MS/MS Spectrometry

Molecules ◽  
2020 ◽  
Vol 25 (17) ◽  
pp. 3774
Author(s):  
Mayya Razgonova ◽  
Alexander Zakharenko ◽  
Sezai Ercisli ◽  
Vasily Grudev ◽  
Kirill Golokhvast
Keyword(s):  
Far East ◽  
Selective Extraction ◽  
Extraction Methods ◽  
Biologically Active ◽  
Supercritical Co2 Extraction ◽  
Active Components ◽  
Esi Ms ◽  
Naturally Occurring ◽  
Target Analytes ◽  
Co2 Flow

Rhododendron sichotense Pojark. and Rhododendron adamsii Rheder have been actively used in ethnomedicine in Mongolia, China and Buryatia (Russia) for centuries, as an antioxidant, immunomodulating, anti-inflammatory, vitality-restoring agent. These plants contain various phenolic compounds and fatty acids with valuable biological activity. Among green and selective extraction methods, supercritical carbon dioxide (SC-CO2) extraction has been shown to be the method of choice for the recovery of these naturally occurring compounds. Operative parameters and working conditions have been optimized by experimenting with different pressures (300–400 bar), temperatures (50–60 °C) and CO2 flow rates (50 mL/min) with 1% ethanol as co-solvent. The extraction time varied from 60 to 70 min. A HPLC-UV-VIS-ESI-MS/MS technique was applied to detect target analytes. A total of 48 different biologically active components have been identified in the Rh. adamsii SC-CO2 extracts. A total of 31 different biologically active components have been identified in the Rh. sichotense SC-CO2 extracts.

scholarly journals Optimized Supercritical CO2 Extraction Enhances the Recovery of Valuable Lipophilic Antioxidants and Other Constituents from Dual-Purpose Hop (Humulus lupulus L.) Variety Ella

Antioxidants ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 918
Author(s):  
Nóra Emilia Nagybákay ◽  
Michail Syrpas ◽  
Vaiva Vilimaitė ◽  
Laura Tamkutė ◽  
Audrius Pukalskas ◽  
...  
Keyword(s):  
Supercritical Co2 ◽  
Antioxidant Properties ◽  
Extraction Yield ◽  
Biologically Active ◽  
High Yield ◽  
Acid Extraction ◽  
Supercritical Co2 Extraction ◽  
Bioactive Constituents ◽  
Total Extract

The article presents the optimization of supercritical CO2 extraction (SFE-CO2) parameters using response surface methodology (RSM) with central composite design (CCD) in order to produce single variety hop (cv. Ella) extracts with high yield and strong in vitro antioxidant properties. Optimized SFE-CO2 (37 MPa, 43 °C, 80 min) yielded 26.3 g/100 g pellets of lipophilic fraction. This extract was rich in biologically active α- and β-bitter acids (522.8 and 345.0 mg/g extract, respectively), and exerted 1481 mg TE/g extract in vitro oxygen radical absorbance capacity (ORAC). Up to ~3-fold higher extraction yield, antioxidant recovery (389.8 mg TE/g pellets) and exhaustive bitter acid extraction (228.4 mg/g pellets) were achieved under the significantly shorter time compared to the commercially used one-stage SFE-CO2 at 10–15 MPa and 40 °C. Total carotenoid and chlorophyll content was negligible, amounting to <0.04% of the total extract mass. Fruity, herbal, spicy and woody odor of extracts could be attributed to the major identified volatiles, namely β-pinene, β-myrcene, β-humulene, α-humulene, α-selinene and methyl-4-decenoate. Rich in valuable bioactive constituents and flavor compounds, cv. Ella hop SFE-CO2 extracts could find multipurpose applications in food, pharmaceutical, nutraceutical and cosmetics industries.

scholarly journals DETERMINATION OF SAFETY PROFILE OF REPARATIVE ACTIVITY OF THE NEW HYGIENIC PRODUCT “APIPROL”

2021 ◽  
Vol 74 (8) ◽  
pp. 1885-1890
Author(s):  
Lyudmila Kravchenko ◽  
Elena Appelkhans ◽  
Liana Unhurian ◽  
Sergey Shcherbakov ◽  
Olga Goncharenko ◽  
...  
Keyword(s):  
Antibacterial Properties ◽  
Biologically Active ◽  
Single Application ◽  
Regenerative Processes ◽  
Active Components ◽  
White Rats ◽  
Experimental Trauma ◽  
Daily Dose ◽  
Further Development

The aim: To prove safety of the new elixir and determine the effect on regenerative processes under conditions of the experimental trauma. Materials and methods: The formula of the new dental elixir “Apiprol” includes biologically active components of bee products (propolis, comb capping wax), plant origin compounds. The elixir was single administered, intragastrally to white nonlinear mice weighing (22±2) g at doses at 50 mg/kg, 500 mg/kg, 5000 mg/kg. Acute toxicity of the new hygienic product “Apiprol” was investigated by a single application at the rate of 1000 and 5000 mg/kg animal weight. Subacute (chronic) toxicity was studied when elixir was applied to the skin of 10 mice at a single daily dose of 500 mg/kg for one month. A local irritant effect of the elixir on the oral mucosa was examined in 14 white rats daily after application for 3–5 min. The study of reparative activity was carried out on an experimental model of the wound process. Results: The elixir’s components promote tissues regeneration, rapid epithelialization and wound surfaces healing, having a highly immune stimulating activity and antibacterial properties. Conclusions: The performed study proved a complete safety of the new elixir “Apiprol” and indicated a necessity of the further development of this preparation in order to create a greater variety of dental means produced in Ukraine.

scholarly journals Chemical composition of seed oil from red grape varieties obtained by supercritical CO2 extraction

2021 ◽  
Vol 19 (2) ◽  
pp. 81-90
Author(s):  
Jelena Milanovic ◽  
Marko Malicanin ◽  
Irena Zizovic ◽  
Jasna Ivanovic ◽  
Stoja Milovanovic ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Supercritical Co2 ◽  
Grape Seed ◽  
Tocopherol Content ◽  
Pinot Noir ◽  
Biologically Active ◽  
Total Phenolic ◽  
Supercritical Co2 Extraction ◽  
Scanning Calorimetry ◽  
Red Grape

This study aimed to investigate the potential of the most abundant red grape variety from the central part of Serbia (the region of three Morava rivers) for grape oil manufacturing, using supercritical CO2 extraction. The content of the main constituents of grape seed oils from the indigenous variety Prokupac was determined and the results of the analysis were compared with selected, most commonly grown, international varieties (Cabernet Sauvignon, Pinot Noir, Merlot, and Gamay). Fatty acid profile and the content of biologically active compounds (total phenolic compounds and ?- tocopherol) were determined. Oxidative stability of the oils was estimated using a DSC (differential scanning calorimetry) method, by determining the oxidation onset temperature. The fatty acid composition was in accordance with literature data. In terms of ?-tocopherol content, its low relative amount was measured in the oils from all grape seed varieties.

scholarly journals Subclinical hypothyroidism: do you always need hormone replacement therapy? A modern view of the problem

2021 ◽  
Vol 17 (5) ◽  
pp. 418-421
Author(s):  
N.O. Kravchun ◽  
I.P. Dunaeva
Keyword(s):  
Trace Elements ◽  
Subclinical Hypothyroidism ◽  
Elderly Women ◽  
Clinical Symptoms ◽  
Hormone Replacement ◽  
Biologically Active ◽  
Rhodiola Rosea ◽  
Active Components ◽  
Stage Of Development ◽  
Wide Range

Subclinical hypothyroidism is the initial stage of development of hypothyroidism, in which there are no clear clinical symptoms and there is a slow decline in thyroid function. It is known that subclinical hypothyroidism occurs in the population much more often than overt one, its prevalence depends on gender, age of patients and it is much more often diagnosed in elderly women. The literature review considers the effectiveness of the combined herbal preparation to improve the quality of life in hypothyroidism — Endomar, which contains 50 % of Potentilla alba, 25 % of Skutellaria baicalensis and 25 % of Rhodiola rosea. All three components of Endomar are synergistic in hypothyroidism. This multicomponent herbal product has a wide range of therapeutic properties and can be recommended for subclinical forms of thyroid hypofunction. Potentilla alba has been used in medical practice since ancient times. Biologically active components of Potentilla alba extract are flavonoids that regulate the permeability and elasticity of blood vessel walls, thereby neutralizing free radi-cals, phenolcarboxylic acids having antimutagenic and diuretic properties, saponin glycosides, which have a cardiotonic, neurotropic effect, hypocholesterolemic, adaptogenic, sedative action. Rhodiola rosea, an extract of the roots and rhizomes of this plant, is an adaptogen that increases the body’s resistance to stress, exhaustion, fatigue. Rhodiola rosea includes the following active substances: phenols and their derivatives aurol, salidroside; flavonoids: kaempferol, rhodiolin, rhodionin, rhodiosine, trace elements. Endomar includes Skutellaria baicalensis, which has unique properties. This plant contains flavonoid baicalin, which has a neuroprotective and neotropic effect, flavonoids scutellarin and vagonin that maintain normal vascular tone. In general, all components have an antioxidant, antispasmodic, antiinflammatory effect, they are also adaptogens and include trace elements such as magnesium, zinc, selenium.

UPLC-MS/MS determination of chlorogenic acid, hyperoside and astragalin in plasma and its pharmacokinetic application in liver injury rats

2020 ◽  
Vol 16 ◽  
Author(s):  
Ying Zhang ◽  
Shu-ya Xu ◽  
Zhe Jia ◽  
Ting Han ◽  
Meng-nan Liu ◽  
...  
Keyword(s):  
Liver Injury ◽  
Chlorogenic Acid ◽  
Multiple Reaction Monitoring ◽  
Rat Plasma ◽  
Biologically Active ◽  
Hepatoprotective Effect ◽  
Plasma Samples ◽  
Active Components ◽  
Three Components

Background: Cuscutae semen (CS) is reported to show hepatoprotective effect. Chlorogenic acid, hyperoside and astragalin are three major biologically active components from CS. Objective: A sensitive method based on ultra-high performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) was developed and validated to quantify the three components in rat plasma and was succssfully used to pharmacokinetic study in liver injury rats. Method: Plasma samples were prepared with protein precipitation by acetonitrile. Chromatographic separation was achieved on ACQUITY-XBridge BEH C18 column with a gradient elution using the mobile phase containing 0.05% formic acid in water (A) and acetonitrile (B). The three components were quantified using electrospray ionization (ESI) source in the negative multiple reaction monitoring (MRM) mode. Results and Discussion: Calibration curves of each analyte showed a good linearity with correlation coefficients over 0.99. Accuracies (RE%) and precisions (RSD%) were within 15%. The method was stable. Recovery of the target compounds in plasma samples ranged from 87.00% to 102.29%. No matrix effect was found to influence the quantitative method. Conclusion: The UPLC-MS/MS method was met the acceptance criteria and successfully applied to simultaneous determination of chlorogenic acid, hyperoside and astragalin in rat plasma for the first time. It is suitable for pharmacokinetic application in liver injury rats. It provides the foundation for the further development and utilization for the hepatoprotective effect of cuscutae semen.

scholarly journals Chemical profile and antimicrobial activity of extractable compounds of Betula litwinowii (Betulaceae) buds

2015 ◽  
Vol 13 (1) ◽  
Author(s):  
Valery A. Isidorov ◽  
Róża Bagan ◽  
Lech Szczepaniak ◽  
Izabela Swiecicka
Keyword(s):  
Antimicrobial Activity ◽  
Folk Medicine ◽  
Biologically Active ◽  
Chemical Profile ◽  
Active Components ◽  
Volatile Elements ◽  
Gram Positive Bacteria ◽  
History Of ◽  
Extractable Compounds

AbstractIn spite of the long history of therapeutic use of buds from different birch species in folk medicine the existing information on their chemical composition is insufficient. The main goal was to develop a method for GC-MS determination of the chemical profile of birch buds as well as their antimicrobial activity. 150 substances of different classes were identified in Betula litwinowii buds. The volatile elements of the buds were mainly represented by sesquiterpene compounds. Ether extracts also contained other biologically active components such as flavonoids and triterpenoids. However, a particular feature of this fraction was the high content of sesquiterpene phenylpropenoids, including esters of ferulic and caffeic acids with caryophyllene-type alcohols that had not been previously found in any biological samples. Apart from carbohydrates, a series of free amino acids were detected in methanol extracts. The antimicrobial activity of the ether extracts of the buds was observed against all of the microorganisms tested, with MIC values from 0.04 to 0.08 mg mL-1 for Gram-positive bacteria and Candida albicans. However, their inhibitory activities against tested Gram-negative bacteria were rather occasional.

Sign in / Sign up

Export Citation Format

Share Document