scholarly journals Gas Chromatography-Mass Spectrometry (GC-MS) Analysis of Indole Alkaloids Isolated from Catharanthus roseus (L.) G. Don Cultivated Conventionally and Derived from In vitro Cultures

Author(s):  
Aneta WESOŁOWSKA ◽  
Monika GRZESZCZUK ◽  
Janusz WILAS ◽  
Danuta KULPA
2016 ◽  
Vol 44 (1) ◽  
pp. 100-106 ◽  
Author(s):  
Aneta WESOŁOWSKA ◽  
Monika GRZESZCZUK ◽  
Janusz WILAS ◽  
Danuta KULPA

Catharanthus roseus (periwinkle) is a medicinal plant commonly known for its wide biological activity. In many countries different parts of this plant are used for the treatment of diabetes, hypertension and for menstrual regulation. Due to the ability of production of alkaloids, which can be applied in cancer therapy, is still extensively investigated. Two, the mostvaluable alkaloids (vincristine and vinblastine) are present in C. roseus in very low concentrations. Micropropagation is promising technique used to enhance the level of important secondary metabolites. The main objective of present study was alkaloids extraction from plants cultivated conventionally and derived from in vitro cultures. In this order the aerial parts of periwinkle were extracted with 96% ethanol at room temperature (method I) and heated with 96% ethanol at 55 °C for 90 minutes (method II). The obtained mixtures of different indole alkaloids were analyzed by gas chromatography – mass spectrometry (GC-MS). Analysis revealed the presence of 15 alkaloids, among which vindoline,vindorosine,isovindolinineand ajmalicine were the most abundant. The obtained results indicated that the propagation method had a significant effect on the percentage content of alkaloids in C. roseus herb. Plants derived from in vitro cultures were richer in vindorosine and vindoline, while conventionally cultivated – in tetrahydroalstonine and ajmalicine. Moreover, in case of isovindolinine,vindolinine and ajmalicine, extraction at 55 °C was more effective, while for pericyclivine – maceration at room temperature.Interestingly, the pericyclivine was not detected in the mixture of alkaloids obtained from periwinkle herb by the extraction at55 °C.


Author(s):  
Krishnavignesh L Krishnavignesh ◽  
Mahalakshmipriya A ◽  
Ramesh M

  Objective: Continued resistance toward the antibiotics urges us to explore newer antibiotics. Plants are being the safer source of antibiotics with lesser or no side effects. This study was designed to study the presence of phytochemical constituents and antibacterial activity of leaf and flower extracts of Wedelia glauca against urinary tract infection causing pathogens.Methods: The plant leaves were extracted with five different solvents based on the polarity. The extraction was done using soxhalation. Antimicrobial activity was determined by agar well diffusion method for both the sample and standard. The acetone plant extract was subjected to gas chromatography-mass spectrometry (GC-MS) analysis for screening phytoconstituents.Results: Preliminary phytochemical screening revealed the presence of diverse phytoconstituents in the plant. The different extracts exhibited a considerable antimicrobial potential. Among the solvents used acetone extract showed comparably better antimicrobial activity with 100% of inhibition rate with the maximum zone of inhibition of 1.6±0.77 mm against Staphylococcus sp. and Aspergillus sp. at the concentration of 5 mg. GC-MS analysis provided 8 major peaks which revealed the existence of a variety of bioactive compounds which may attribute to the efficacy of the plant.Conclusion: W. glauca leaf and flower extracts displayed a broad spectrum of antibacterial and antifungal activity and can be considered as a potential source of newer antibiotic compounds.


Author(s):  
RAJESWARI R ◽  
PRABHAKARAN V ◽  
SARAVANAKUMAR A

Objective: The present study aims at the preliminary phytochemical evaluation, gas chromatography–mass spectrometry (GC–MS) analysis, in vitro cytotoxicity, and anthelmintic activity of the hydroalcoholic extract of D. erecta leaves. Methods: The hydroalcoholic extraction of the plant material is done with Soxhlet apparatus and the GC–MS profiling of the extract is performed. The in vitro cytotoxicity activity of the extract is done using the MOLT-3 cell lines. The anthelmintic activity is performed using Pheretima posthuma. Results: The GC–MS analysis shows the presence of various secondary metabolites with proved pharmacological activity. The in vitro cytotoxicity and the anthelmintic activity of the extract show the beneficial effect of the plant. Conclusion: The flavonoids, phenolic compounds, and tannins present in the plant extract may support the cytotoxic and anthelmintic activity of the plant.


PHARMACON ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 849
Author(s):  
Ellen Hotmian ◽  
Elly Suoth ◽  
Fatimawali Fatimawali ◽  
Trina Tallei

ABSTRACTThe Nut Grass Tuber (Cyperus rotundus L.) is a plant that is believed by the public to cure several diseases. According to a study conducted in vivo and in vitro, the extract the tuber root has many potentials such as anticancer, anti-inflammatory, antibacterial, etc. This study aims to determine the polar bioactive compounds contained in the bulb tubers. The method used was the extraction of nut tuber dry powder using methanol as a solvent by maceration process and then analyzed using gas chromatography - mass spectrometry (GC-MS) to obtain information on the content of the tubers The results of GC-MS analysis from this study indicate that there are 177 possible components of the compound extracted using methanol. The results also showed that there were three possible polar bioactive compounds at the highest peak of the GC-MS analysis, namely 7-Isopropenyl-1,4a-dimethyl-4,4a, 5,6, 7,8-hexahydro-3H-naphthalen-2-one, 1 (2H) -Naphthalenone, 3,4,4a, 5,6,7-hexahydro-4a, 5-dimethyl-3- (1-methylethenyl) -, [3S- (3a, 4aa, 5a)] -, and 2 (1H) Naphthalenone, 3,5,6,7,8,8a-hexahydro-4,8a-dimethyl-6- (1-methylethenyl) -.Keywords         : Methanolic extract, nut grass tuber, Cyperus rotundus L., GC-MS   ABSTRAKUmbi Rumput Teki (Cyperus rotundus L.) merupakan tumbuhan yang dipercayai masyarakat dapat menyembuhkan beberapa penyakit. Menurut sebuah penelitian yang dilakukan secara in vivo maupun in vitro, kandungan ekstrak umbi rumput teki memiliki banyak potensi seperti antikanker, antiinflamasi, antibakteri, dll. Penelitian ini bertujuan untuk mengetahui senyawa-senyawa bioaktif polar yang terkandung pada umbi rumput teki. Metode yang digunakan yaitu ekstraksi serbuk kering umbi rumput teki menggunakan pelarut metanol dengan proses maserasi kemudian dianalisis menggunakan kromatografi gas – spektrometri massa (GC-MS) untuk mendapatkan informasi kandungan dalam umbi rumput teki. Hasil analisis GC-MS dari penelitian ini menunjukkan bahwa terdapat 177 kemungkinan komponen senyawa yang diekstraksi menggunakan pelarut methanol. Hasil penelitian juga menunjukkan bahwa terdapat tiga kemungkinan senyawa bioaktif polar pada puncak tertinggi hasil analisis GC-MS, yaitu 7-Isopropenyl-1,4a-dimethyl-4,4a,5,6,7,8-hexahydro-3H-naphthalen-2-one, 1(2H)-Naphthalenone, 3,4,4a,5,6,7-hexahydro-4a,5-dimethyl-3-(1-methylethenyl)-, [3S-(3a,4aa,5a)]-, dan 2(1H)Naphthalenone, 3,5,6,7,8,8a-hexahydro-4,8a-dimethyl-6-(1-methylethenyl)-. Kata kunci      : Ekstrak metanol, umbi rumput teki, Cyperus rotundus L., GC-MS


Proceedings ◽  
2021 ◽  
Vol 57 (1) ◽  
pp. 101
Author(s):  
Virgil Badescu ◽  
Raluca Senin

The aim of this article was the gas chromatography–mass spectrometry (GC-MS) analysis oforganic matter from a residual liquor sample (S.C. Alum S.A., Tulcea), extracted by the solid-phasemicroextraction method (SPMA) and derivatized with N-(tert-butyldimethylsilyl)-Nmethyltrifluoroacetamide(MTBSTFA) as the silylating agent. [...]


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Priyanka Verma ◽  
Atul Bajaj ◽  
R. M. Tripathi ◽  
Sudhir K. Shukla ◽  
Suman Nagpal

Abstract Background Recent advances in the diversified anti-diabetic drugs have appeared in the startling increase in the count of poisoning cases. The epidemics of diabetes mellitus are increasing; hence, the no. of anti-diabetic drug users raised by 42.9%. The use of glimepiride raised to 24%. As the toxicity and drug cases are also escalating with increasing epidemics of diabetes mellitus, a novel gas chromatography-mass spectrometry (GC-MS) method for detecting glimepiride in biological matrices is developed. Results Liquid-liquid extraction method was employed by using 1-butanol: hexane (50:50, v/v) under an alkaline medium, and then back extraction was done via acetic acid. Distinct derivatization techniques were employed for the sample preparation for GC-MS analysis, i.e., silylation and acylation. Derivatization approaches were optimized under different parameters, i.e., reaction temperature and reaction time. N-Methyl-N-(trimethylsilyl) trifluoroacetamide [MSTFA] was found to be the best sound derivatization reagent for the GC-MS analysis of glimepiride. Total ion current (TIC) mode was selected for the monitoring of ions of trimethylsilyl (TMS) derivative of glimepiride with an m/z ratio of 256. Distinct parameters like specificity, carryover, stability, precision, and accuracy were evaluated for validating the identification method. The GC-MS method is found to be linear and illustrated within the range 500 to 2500 ng/ml with the value of R2 (coefficient of determination) at 0.9924. The stability of the extracted and derivatized glimepiride was accessed with regard to processed/extracted sample conditions and autosampler conditions, respectively. Accuracy at each concentration level was within the + 15% of the nominal concentration. Precision (%) for the interday and intraday analysis was found to be in the respectable spectrum. Conclusion Henceforth, the proposed GC-MS method can be employed for the determination of glimepiride in biological matrices.


Author(s):  
Yogeshwari C ◽  
Kumudha P

 Objective:The objective of this study is to characterize the phytoconstituents of Tiliacora racemosa Colebr. using gas chromatography mass spectrometry (GC-MS).Methods: Preliminary phytochemical and physicochemical analysis was carried out using standard procedures. GC-MS analysis of methanolic extract was carried out using Thermo GC-Trace Ultra version: 5.0, Thermo MS DSQ with a DB 35MS capillary standard non-polar column and gas chromatograph interfaced to a mass selective detector (MS DSQ II) with Xcalibur software.Results: Preliminary phytochemical screening revealed the presence of alkaloids, flavonoids, phenols, tannins, triterpenoids, steroids, proteins and amino acids, carbohydrates, saponins and coumarin. Quinones, anthraquinones, glycosides and fixed oil were absent. GC-MS analysis revealed the presence of 28 compounds of which quinic acid (retention times [RT]: 15.65) and inositol, 1-deoxy-(CAS) (RT: 19.24) was observed as abundant compounds.Conclusion: The presence of various bioactive compounds confirms the medicinal importance and it’s application for curing various diseases by traditional practitioners. However, isolation and characterization of potential bioactive compounds would lead to drug formulation.


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