Antioxidant activity of inflorescences, leaves and fruits of three<i>Sorbus</i>species in relation to their polyphenolic composition

Olszewska, Monika A.; Michel, Piotr

doi:10.1080/14786410802636177

Cited by 70 publications

(116 citation statements)

References 23 publications

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“…Also, α-glucosidase and α-amylase inhibitory potentials of various plant polyphenols such as catechins, diacetylated anthocyanins and alkaloids have been reported in several studies (2,6,20). Phenolic composition of S. torminalis and S. aucuparia fruits have been shown in previous studies (21,22). Based on the correlation between the results of the assays, we can say that the phenolic compounds in the fruit extracts are responsible for its antidiabetic activity.…”

Section: Discussionmentioning

confidence: 91%

In vitro Antidiabetic Activities of Two Sorbus Species

Hasbal¹,

Yilmaz-Ozden²,

Can³

2017

Eur J Biol

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Fruits of several Sorbus species (Rosaceace) are used both in traditional medicine as antidiabetic, antiinflammatory, diuretic, vasoprotective and in foods. In this study, in vitro antidiabetic activities of water extracts of Sorbus aucuparia L. (rowan tree) and Sorbus torminalis L. Crantz (wild sevice tree) fruits were investigated by measuring inhibitory potentials on α-glucosidase and pancreatic α-amylase activities, the most important digestive enzymes. Also, the total phenolic and flavonoid contents of the fruits were determined to evaluate the association between phenolic content and antidiabetic activity. S. torminalis and S. aucuparia extracts exhibited strong α-glucosidase inhibitory activity, more effective than that of standard drug acarbose. However, S. torminalis has shown moderate inhibitory effect against α-amylase while S. aucuparia exhibited weak inhibition. The total phenolic and flavonoid contents of the fruits were correlated with andiabetic activities. It has been suggested that antidiabetic effects of the fruits may be due to phenolic compounds present therein. Therefore, S. aucuparia and S. torminalis fruits might be potential sources of antidiabetic compounds.

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Section: Discussionmentioning

confidence: 91%

In vitro Antidiabetic Activities of Two Sorbus Species

Hasbal¹,

Yilmaz-Ozden²,

Can³

2017

Eur J Biol

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“…The results of antiradical activity studies on different types of rowan berries were obtained using the ABTS method and are similar to our results. They varied from 65.3 moL/g DW to 131.1 moL/g DW [49].…”

Section: Measurements Of Antioxidant Activity In Pear Extractsmentioning

confidence: 99%

Determination of the Phenolic Composition and Antioxidant Activity of Pear Extracts

Liaudanskas

Zymonė

Viškelis

et al. 2017

Journal of Chemistry

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The specific HPLC analytical procedure was developed and validated for the determination of phenolic compounds in pear samples of different popular cultivars "Conference," "Concordia," "Grabova," and "Patten." HPLC mobile phase consisted of 0.05% (v/v) trifluoroacetic acid in water and 100% (v/v) acetonitrile. The HPLC method was used to identify and confirm the specificity of 8 analytes: chlorogenic acid, rutin, hyperoside, isoquercitrin, isorhamnetin rutinoside, quercitrin, quercitrin malonyl glucoside, and isorhamnetin glucoside. Repeatability % RSD did not exceed 3.87%, and intermediate precision did not exceed 4.63%. The total content of phenolic compounds varied from 0.51 ± 0.001 mg/g (cv. "Concordia") to 1.11 ± 0.013 mg/g (cv. "Patten"). Chlorogenic acid was the major component in all the tested pear cultivars. The highest amount of chlorogenic acid (0.69±0.033 mg/g) was found in pear samples of the cultivar "Grabova," and the highest amount of flavonol compounds (1.11 ± 0.013 mg/g) was found in pear samples of the cultivar "Concordia."

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“…To this end, the leaves of A. uva ursi were extracted with every solvent thrice and the obtained extracts were combined. The content of both target analytes as well as total polyphenolic content (TPC) was determined (as described previously [37]) for all extracts. Hexane proved to be least efficient for OA and UA extraction, which is consistent with the studies carried out by Schneider et al [36], where the mixture of OA and UA was only scarcely soluble in this solvent.…”

Section: Selection Of Extraction Solventmentioning

confidence: 99%

Application of Response Surface Methodology for Optimisation of Simultaneous UHPLC-PDA Determination of Oleanolic and Ursolic Acids and Standardisation of Ericaceae Medicinal Plants

et al. 2016

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Abstract:A fast and sensitive ultra-high performance liquid chromatography-photodiode array (UHPLC-PDA) method for simultaneous quantification of oleanolic acid (OA) and ursolic acid (UA) in plant materials was developed. A central composite design combined with a response surface methodology was utilized to establish optimal separation conditions. The final separation was accomplished on a Zorbax Eclipse XDB-C18 column (1.8 µm, 100 mm × 3 mm I.D., Agilent, Santa Clara, CA, USA) using a mixture 90:10 (v/v) of methanol and 1% (w/v) aqueous orthophosporic acid as a mobile phase at a flow rate of 0.44 mL/min and temperature of 18 • C. The analysis was completed in 6.2 min with satisfactory resolution of 1.5 between the target analytes. The developed method proved to be precise (relative standard deviations below 3.2%), accurate (recoveries in the range of 95.27%-98.60%), and sensitive (limits of detection (LODs) in the range of 0.047-0.051 mg/mL). The method was then successfully applied to evaluate OA and UA content in real samples of selected Ericaceae plant materials (leaves of Arctostaphylos uva ursi, Vaccinium myrtillus, Vaccinium vitis idaea, Gaultheria procumbens). The content of OA and UA in investigated samples varied in the range of 0.74-4.47 mg/g dry weight (dw) and 1.30-18.61 mg/g dw, respectively.

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Antioxidant activity of inflorescences, leaves and fruits of threeSorbusspecies in relation to their polyphenolic composition

Cited by 70 publications

References 23 publications

In vitro Antidiabetic Activities of Two Sorbus Species

In vitro Antidiabetic Activities of Two Sorbus Species

Determination of the Phenolic Composition and Antioxidant Activity of Pear Extracts

Application of Response Surface Methodology for Optimisation of Simultaneous UHPLC-PDA Determination of Oleanolic and Ursolic Acids and Standardisation of Ericaceae Medicinal Plants

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