Phytochemical studies of the herb, Tragopogon orientalis L. (Asteraceae). 2. Components of a methanol extract

Smolarz, Helena D.; Krzaczek, T.

doi:10.5586/asbp.1988.009

Cited by 12 publications

(5 citation statements)

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“…In addition, we determined 157.8 μg of o-coumaric acid for aerial parts in our study. As Abdalla and Zidorn stated in their review on the use of Tragopogon species, their phytochemical and pharmacological properties [25], similar to our study, Smolarz and Krzaczek's studies found high apigenin, luteolin, syringic acid and caffeic acid levels in methanolic extracts of Tragopogon orientalis L. [26]. In this study, when evaluated in terms of DPPH radical scavenging activity, more activity was found in the aerial parts than in the root (0.60±0.01 mg/ml) (Fıgure 1).…”

Section: Discussionsupporting

confidence: 90%

Tragopogon oligolepis’ın Fitokimyasal İçeriği, Antioksidan ve Antiquorum Sensing Özelliğinin Belirlenmesi

Reis

Şen

Önem

et al. 2022

Süleyman Demirel Üniversitesi Sağlık Bilimleri Dergisi

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Objective: In this study it was aimed to examine antiquorum sensing, antioxidant activities by using root and aerial parts extracts of Tragopogon oligolepis. Also phenolic content was detected using HPLC analysis.Material-Method: Antioxidant activity was detected by DPPH, FRAP methods and phenolic content HPLC. Antiquorum sensing activity was investigated by using pyocyanin and swarming motility assay on Pseudomonas aeruginosa PAO1. Results: Phytochemical profile findings showed that 12 components were detected in the root and 10 components in the aerial parts. The main components were found chlorogenic acid and o-coumaric acid. According to the obtained of antioxidant levels the aerial parts extracts of T. oligolepis had the best antioxidant property in our results. The amount of DPPH (0.60 ± 0.01 mg/ml) and phenolic content (6.55±0.18 mg GAE/g sample) was determined to be high in the aerial parts. In the FRAP analysis, high reducing power was found in the roots (12.62±0.36 μmol FeSO4/g sample). According to these results, although T. oligolepis extracts do not reach very high amounts in terms of antioxidant results, it is thought to be a plant that can be evaluated in terms of removing oxidant effects. The results of antiquorum sensing activity showed that both root and aerial parts extract showed strong inhibitory effect on swarming motility 62%, %65 rate respectively.Conclusions: Tragopogon oligolepis, an endemic species, can be evaluated as an antiquorum sensing inhibitor candidate with its phytochemical contents.

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Section: Discussionsupporting

confidence: 90%

Tragopogon oligolepis’ın Fitokimyasal İçeriği, Antioksidan ve Antiquorum Sensing Özelliğinin Belirlenmesi

Reis

Şen

Önem

et al. 2022

Süleyman Demirel Üniversitesi Sağlık Bilimleri Dergisi

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“…Also chlorogenic acid, 4,5dicaffeoylquinic acid, scopoletin 7-oglucoside, vitexin, and orientin have been found in T. porrifolius aerial part [8]. In Smolarz and Krzaczek study [16], detected flavonoids in T. orientalis L. were apigenin, vitexin, luteolin, orientin, isoorientin, and quercetin. In another study performed by DAD UV-Vis HPLC, the amounts of ferulic acid (197.79 g⋅g −1 ), caffeic acid (278.72 g⋅g −1 ), resveratrol (13.95 g⋅g −1 ), sinapic acid (110.85 g⋅g −1 ), rutin (89.99 g⋅g −1 ), and gallic acid (1347.85 g⋅g −1 ) were determined in T. pratensis flower and gallic acid was the dominant, followed by caffeic acid [7].…”

Section: Determination Of Phenolic Compoundsmentioning

confidence: 93%

Standardization ofTragopogon graminifoliusDC. Extract Based on Phenolic Compounds and Antioxidant Activity

Farzaei

Khanavi

Moghaddam

et al. 2014

Journal of Chemistry

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Tragopogon graminifoliusDC. (TG), Compositae family, is traditionally used for the treatment of various diseases like gastrointestinal and hepatic disorders. The aim of the present study is to standardize extracts from TG used for preparation of different dosage forms in traditional Iranian medicine (TIM) based on phenolic compounds. For this purpose, total phenolic content and some phenolic compounds were determined in ethanolic extracts from aerial part and root of TG by HPLC method. Furthermore, antioxidant activity was evaluated using DPPH-HPLC methods. Caffeic acid, gallic acid,ρ-coumaric acid, ferulic acid, and catechin were detected in root and aerial part of TG.ρ-Coumaric acid (6.357 ± 0.014 mg·g−1) was dominant phenolic compound in aerial part followed by ferulic acid (1.24 ± 0.018 mg·g−1). Also,ρ-coumaric acid (2.685 ± 0.031 mg·g−1) was highly abundant in root, followed by catechin (2.067 ± 0.021 mg·g−1). Antioxidant activity of root extract (460.45 ± 0.78 µg Vit.E.E·mL−1) was better than that of aerial part. Generally, phenolic compounds are one of the major constituents of TG and could be used as markers for standardization of dosage forms prepared from this plant. Also, TG demonstrated significant antioxidant activity using DPPH-HPLC method. Phenolic compounds of TG may be responsible for its marked antioxidant properties.

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“…The Tragopogon dubius distribution is shown in Figure 1. [15,16] The utilization of agronomic material in wastewater treatment has been reported by scientists; however, no study has addressed the application of Tragopogon dubius for this purpose. The nature, type modification, and economic optimum points of this plant are the novel aspects of the present research.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, the widespread distribution makes it more economical, easy to access, and a candidate for regional studies and diversity in research topics. The Tragopogon dubius distribution is shown in Figure 1 [15,16] …”

Section: Introductionmentioning

confidence: 99%

Crystal violet removal from aqueous media using Tragopogon dubius adsorbent

Yaghoub Krimi,

Marofi,

Zare

2024

ChemistrySelect

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In this study, Tragopogon dubius was used using a specific condition of adsorption to remove a cationic harmful dye (crystal violet : CV) in aqueous liquid media. Removing time, rate of adsorbent, pH of the media, initial concentration of the harmful dye, and absorbent particle size were studied to reach an optimum adsorption condition. Before and after the biosorption process of CV, the SEM micrographs and EDX spectra were obtained for Tragopogon dubius. The maximum removal efficiency of CV (90–93 %) has happened at pH=7.0, contact time of 120 min, adsorbent dose of 0.2 g/L (with particle size of 0.074 mm), temperature of 25 ○C, and pollutant rate of 50.0 mg/L. The adsorption rate of Tragopogon dubius was calculated using equilibrium models. It was also increased by water washing (30 min). The results showed that 50 % of the dye was absorbed when the adsorption time reached 50 min. Maximum adsorption (212.9 mg/g) occurred after 120 min of removing time. The results revealed the best accordance of the Tragopogon dubius adsorption with the Freundlich model (R2=0.96). A kinetic agreement was also observed between the dye adsorption and the Pseudo‐second order model. The negative value of ΔS° (−53.51 J/K mol) indicates that Tragopogon dubius removes CV during a relatively stable process with randomness in the system. The negative values of ΔG° at different temperatures indicate that the nature of CV adsorption was spontaneous.

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Phytochemical studies of the herb, Tragopogon orientalis L. (Asteraceae). 2. Components of a methanol extract

Cited by 12 publications

References 0 publications

Tragopogon oligolepis’ın Fitokimyasal İçeriği, Antioksidan ve Antiquorum Sensing Özelliğinin Belirlenmesi

Tragopogon oligolepis’ın Fitokimyasal İçeriği, Antioksidan ve Antiquorum Sensing Özelliğinin Belirlenmesi

Standardization ofTragopogon graminifoliusDC. Extract Based on Phenolic Compounds and Antioxidant Activity

Crystal violet removal from aqueous media using Tragopogon dubius adsorbent

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